[2.6.27] pausing during boot (several issues)

[Carl Karsten]

carl@dv67:~$ uname -a
Linux dv67 2.6.26-5-generic #1 SMP Sat Jul 26 21:35:46 UTC 2008 i686 GNU/Linux

[ 0.548741] ACPI: EC: Look up EC in DSDT
[ 0.551266] ACPI: BIOS _OSI(Linux) query ignored via DMI
[ 0.552031] ACPI: Interpreter enabled
[ 0.552031] ACPI: (supports S0 S3 S4 S5)
[ 0.552281] ACPI: Using IOAPIC for interrupt routing
[ 0.556031] ACPI: EC: non-query interrupt received, switching to interrupt mo
de

press/release power button (thinking i need to hard reboot) and it continues booting:

[ 0.572281] ACPI: EC: GPE = 0x10, I/O: command/status = 0x66, data = 0x62
[ 0.572281] ACPI: EC: driver started in interrupt mode
[ 0.572281] ACPI: PCI Root Bridge [PCI0] (0000:00)
[ 0.572281] PCI: Transparent bridge - 0000:00:08.0
[ 0.572281] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
[ 0.572281] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P2P0._PRT]
[ 0.572281] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.XVR1._PRT]
[ 0.572315] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.XVR2._PRT]
[ 0.608281] ACPI: PCI Interrupt Link [LNK1] (IRQs 5) *10
[ 0.608281] ACPI: PCI Interrupt Link [LNK2] (IRQs 7) *11
[ 0.608281] ACPI: PCI Interrupt Link [LNK3] (IRQs 10) *0, disabled.
[ 0.608281] ACPI: PCI Interrupt Link [LNK4] (IRQs 11) *0, disabled.
[ 0.608281] ACPI: PCI Interrupt Link [LK1E] (IRQs 16) *0, disabled.
[ 0.608281] ACPI: PCI Interrupt Link [LK2E] (IRQs 17) *0, disabled.
[ 0.611173] ACPI: PCI Interrupt Link [LK3E] (IRQs 18) *0, disabled.
[ 0.611173] ACPI: PCI Interrupt Link [LK4E] (IRQs 19) *10
[ 0.611525] ACPI: PCI Interrupt Link [LSMB] (IRQs *10)
[ 0.611949] ACPI: PCI Interrupt Link [LUS0] (IRQs 18) *11
[ 0.612418] ACPI: PCI Interrupt Link [LUS2] (IRQs 22) *7
[ 0.612891] ACPI: PCI Interrupt Link [LMAC] (IRQs 20) *11
[ 0.613359] ACPI: PCI Interrupt Link [LAZA] (IRQs 21) *10
[ 0.613806] ACPI: PCI Interrupt Link [LGPU] (IRQs 16) *10
[ 0.614275] ACPI: PCI Interrupt Link [LPID] (IRQs 22) *0, disabled.
[ 0.615164] ACPI: PCI Interrupt Link [LSI0] (IRQs 23) *11
[ 0.615302] ACPI: PCI Interrupt Link [Z018] (IRQs 18) *5
[ 0.615775] ACPI: PCI Interrupt Link [Z019] (IRQs 22) *10
[ 0.616225] ACPI: PCI Interrupt Link [LPMU] (IRQs *11)
[ 0.618220] Linux Plug and Play Support v0.97 (c) Adam Belay
[ 0.619056] pnp: PnP ACPI init
[ 0.619056] ACPI: bus type pnp registered
[ 0.622178] IOAPIC[0]: Set PCI routing entry (2-8 -> 0x69 -> IRQ 8 Mode:0 Active:0)
[ 0.623056] IOAPIC[0]: Set PCI routing entry (2-13 -> 0x91 -> IRQ 13 Mode:0 Active:0)
[ 0.623056] IOAPIC[0]: Set PCI routing entry (2-1 -> 0x39 -> IRQ 1 Mode:0 Active:0)
[ 0.623056] IOAPIC[0]: Set PCI routing entry (2-12 -> 0x89 -> IRQ 12 Mode:0 Active:0)
[ 0.623056] pnp: PnP ACPI: found 12 devices
[ 0.623117] ACPI: ACPI bus type pnp unregistered
[ 0.623117] PnPBIOS: Disabled by ACPI PNP
[ 0.623118] PCI: Using ACPI for IRQ routing
[ 0.623118] number of MP IRQ sources: 15.
[ 0.623118] number of IO-APIC #2 registers: 24.
[ 0.623118] testing the IO APIC.......................

rest in attached dmesg.txt

lspci:
00:00.0 RAM memory: nVidia Corporation MCP67 Memory Controller (rev a2)
00:01.0 ISA bridge: nVidia Corporation MCP67 ISA Bridge (rev a2)
00:01.1 SMBus: nVidia Corporation MCP67 SMBus (rev a2)
00:01.2 RAM memory: nVidia Corporation MCP67 Memory Controller (rev a2)
00:01.3 Co-processor: nVidia Corporation MCP67 Co-processor (rev a2)
00:02.0 USB Controller: nVidia Corporation MCP67 OHCI USB 1.1 Controller (rev a2)
00:02.1 USB Controller: nVidia Corporation MCP67 EHCI USB 2.0 Controller (rev a2)
00:04.0 USB Controller: nVidia Corporation MCP67 OHCI USB 1.1 Controller (rev a2)
00:04.1 USB Controller: nVidia Corporation MCP67 EHCI USB 2.0 Controller (rev a2)
00:06.0 IDE interface: nVidia Corporation MCP67 IDE Controller (rev a1)
00:07.0 Audio device: nVidia Corporation MCP67 High Definition Audio (rev a1)
00:08.0 PCI bridge: nVidia Corporation MCP67 PCI Bridge (rev a2)
00:09.0 IDE interface: nVidia Corporation MCP67 AHCI Controller (rev a2)
00:0a.0 Ethernet controller: nVidia Corporation MCP67 Ethernet (rev a2)
00:0c.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2)
00:0d.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2)
00:12.0 VGA compatible controller: nVidia Corporation GeForce 7150M (rev a2)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
02:05.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05)
02:05.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22)
02:05.2 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev 12)
02:05.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 12)
02:05.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev ff)
03:00.0 Ethernet controller: Atheros Communications Inc. AR242x 802.11abg Wireless PCI Express Adapter (rev 01)

carl@dv67:~$ sudo dmidecode|xclip
# dmidecode 2.9
SMBIOS 2.4 present.
19 structures occupying 726 bytes.
Table at 0x000F0CB0.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
 Vendor: Hewlett-Packard
 Version: F.27
 Release Date: 01/11/2008
 Address: 0xE4530
 Runtime Size: 113360 bytes
 ROM Size: 1024 kB
 Characteristics:
  ISA is supported
  PCI is supported
  PNP is supported
  BIOS is upgradeable
  BIOS shadowing is allowed
  ESCD support is available
  Boot from CD is supported
  Selectable boot is supported
  Print screen service is supported (int 5h)
  8042 keyboard services are supported (int 9h)
  Serial services are supported (int 14h)
  Printer services are supported (int 17h)
  ACPI is supported
  USB legacy is supported
  AGP is supported
  Smart battery is supported
  Targeted content distribution is supported

Handle 0x0001, DMI type 1, 27 bytes
System Information
 Manufacturer: Hewlett-Packard
 Product Name: HP Pavilion dv6700 Notebook PC
 Version: Rev 1
 Serial Number: CNF8032SLR
 UUID: 434E4638-3033-3253-4C52-001E680925F6
 Wake-up Type: Power Switch
 SKU Number: KC300UA#ABA
 Family: 103C_5335KV

Handle 0x0002, DMI type 2, 8 bytes
Base Board Information
 Manufacturer: Quanta
 Product Name: 30CF
 Version: 85.24
 Serial Number: None1

Handle 0x0003, DMI type 3, 17 bytes
Chassis Information
 Manufacturer: Quanta
 Type: Notebook
 Lock: Not Present
 Version: N/A
 Serial Number: None
 Asset Tag:
 Boot-up State: Safe
 Power Supply State: Safe
 Thermal State: Safe
 Security Status: None
 OEM Information: 0x00000104

Handle 0x0004, DMI type 4, 35 bytes
Processor Information
 Socket Designation: Socket S1
 Type: Central Processor
 Family: Opteron
 Manufacturer: AMD
 ID: 82 0F 06 00 FF FB 8B 17
 Signature: Family 15, Model 104, Stepping 2
 Flags:
  FPU (Floating-point unit on-chip)
  VME (Virtual mode extension)
  DE (Debugging extension)
  PSE (Page size extension)
  TSC (Time stamp counter)
  MSR (Model specific registers)
  PAE (Physical address extension)
  MCE (Machine check exception)
  CX8 (CMPXCHG8 instruction supported)
  APIC (On-chip APIC hardware supported)
  SEP (Fast system call)
  MTRR (Memory type range registers)
  PGE (Page global enable)
  MCA (Machine check architecture)
  CMOV (Conditional move instruction supported)
  PAT (Page attribute table)
  PSE-36 (36-bit page size extension)
  CLFSH (CLFLUSH instruction supported)
  MMX (MMX technology supported)
  FXSR (Fast floating-point save and restore)
  SSE (Streaming SIMD extensions)
  SSE2 (Streaming SIMD extensions 2)
  HTT (Hyper-threading technology)
 Version: AMD Turion(tm) 64 X2 Mobile TL60
 Voltage: 1.6 V
 External Clock: 200 MHz
 Max Speed: 2000 MHz
 Current Speed: 2000 MHz
 Status: Populated, Enabled
 Upgrade: None
 L1 Cache Handle: 0x0005
 L2 Cache Handle: 0x0006
 L3 Cache Handle: Not Provided
 Serial Number: Not Specified
 Asset Tag: Not Specified
 Part Number: Not Specified

Handle 0x0005, DMI type 7, 19 bytes
Cache Information
 Socket Designation: L1 Cache
 Configuration: Enabled, Not Socketed, Level 1
 Operational Mode: Write Back
 Location: Internal
 Installed Size: 64 KB
 Maximum Size: 64 KB
 Supported SRAM Types:
  Burst
  Pipeline Burst
  Asynchronous
 Installed SRAM Type: Asynchronous
 Speed: Unknown
 Error Correction Type: Unknown
 System Type: Unknown
 Associativity: Unknown

Handle 0x0006, DMI type 7, 19 bytes
Cache Information
 Socket Designation: L2 Cache
 Configuration: Enabled, Not Socketed, Level 2
 Operational Mode: Write Through
 Location: Internal
 Installed Size: 1024 KB
 Maximum Size: 1024 KB
 Supported SRAM Types:
  Burst
  Pipeline Burst
  Synchronous
 Installed SRAM Type: Synchronous
 Speed: Unknown
 Error Correction Type: Unknown
 System Type: Unified
 Associativity: Unknown

Handle 0x0007, DMI type 9, 13 bytes
System Slot Information
 Designation: PCI Express Slot 1
 Type: 64-bit PCI Express
 Current Usage: Available
 Length: Short
 ID: 0
 Characteristics:
  5.0 V is provided
  3.3 V is provided

Handle 0x0008, DMI type 9, 13 bytes
System Slot Information
 Designation: PCI Express Slot 2
 Type: 64-bit PCI Express
 Current Usage: Available
 Length: Short
 ID: 0
 Characteristics:
  5.0 V is provided
  3.3 V is provided
  PME signal is supported
  Hot-plug devices are supported

Handle 0x0009, DMI type 10, 6 bytes
On Board Device Information
 Type: Video
 Status: Enabled
 Description: 64

Handle 0x000A, DMI type 11, 5 bytes
OEM Strings
 String 1: $HP$
 String 2: LOC#ABA
 String 3: ABS 72/73 81 82 83 84

Handle 0x000B, DMI type 16, 15 bytes
Physical Memory Array
 Location: System Board Or Motherboard
 Use: System Memory
 Error Correction Type: None
 Maximum Capacity: 2 GB
 Error Information Handle: Not Provided
 Number Of Devices: 2

Handle 0x000C, DMI type 17, 27 bytes
Memory Device
 Array Handle: 0x000B
 Error Information Handle: No Error
 Total Width: 64 bits
 Data Width: 64 bits
 Size: 1024 MB
 Form Factor: DIMM
 Set: 1
 Locator: DIMM 1
 Bank Locator: Bank 0,1
 Type: DDR2
 Type Detail: Synchronous
 Speed: 667 MHz (1.5 ns)
 Manufacturer: Not Specified
 Serial Number: Not Specified
 Asset Tag: Not Specified
 Part Number: Not Specified

Handle 0x000D, DMI type 17, 27 bytes
Memory Device
 Array Handle: 0x000B
 Error Information Handle: No Error
 Total Width: 64 bits
 Data Width: 64 bits
 Size: 1024 MB
 Form Factor: DIMM
 Set: 1
 Locator: DIMM 2
 Bank Locator: Bank 2,3
 Type: DDR2
 Type Detail: Unknown
 Speed: 667 MHz (1.5 ns)
 Manufacturer: Not Specified
 Serial Number: Not Specified
 Asset Tag: Not Specified
 Part Number: Not Specified

Handle 0x000E, DMI type 19, 15 bytes
Memory Array Mapped Address
 Starting Address: 0x00000000000
 Ending Address: 0x0007FFFFFFF
 Range Size: 2 GB
 Physical Array Handle: 0x000B
 Partition Width: 0

Handle 0x000F, DMI type 20, 19 bytes
Memory Device Mapped Address
 Starting Address: 0x00000000000
 Ending Address: 0x0003FFFFFFF
 Range Size: 1 GB
 Physical Device Handle: 0x000C
 Memory Array Mapped Address Handle: 0x000E
 Partition Row Position: 2
 Interleave Position: 2
 Interleaved Data Depth: 2

Handle 0x0010, DMI type 20, 19 bytes
Memory Device Mapped Address
 Starting Address: 0x00040000000
 Ending Address: 0x0007FFFFFFF
 Range Size: 1 GB
 Physical Device Handle: 0x000D
 Memory Array Mapped Address Handle: 0x000E
 Partition Row Position: 2
 Interleave Position: 2
 Interleaved Data Depth: 2

Handle 0x0011, DMI type 32, 20 bytes
System Boot Information
 Status: <OUT OF SPEC>

Handle 0x0012, DMI type 127, 4 bytes
End Of Table

[hischild (his--child)]

I can confirm that this bug is still there.

While booting, in the first few seconds (between 0 and 1, according to dmesg) the message of
ACPI: EC: non-query interrupt received, switching to interrupt mode
is shown. The system appears to hang shortly after and does not respond. When pressing and releasing the power button (like when you turn on a pc) the system continues to boot properly.

I've noticed that the sound gets screwed sometimes and i don't remember where, but i've read something about the sound volume wheel being related to this.

[Carl Karsten (carlfk)]

My box is a laptop, and I can get past it by flipping AC/battery (either direction).

[Stefan Bader (smb)]

Is 2.6.24-19 good without acpi=debug as well or is that needed to get along without the hang.

[Carl Karsten (carlfk)]

Stefan Bader wrote:
> Is 2.6.24-19 good without acpi=debug as well or is that needed to get
> along without the hang.
>

2.6.24-19 does not need acpi=debug.

title Ubuntu 8.04.1, kernel 2.6.24-19-generic
root (hd0,4)
kernel /boot/vmlinuz-2.6.24-19-generic
root=UUID=6c1d1f33-b7c8-4c7c-9170-ad39bf061cef ro
initrd /boot/initrd.img-2.6.24-19-generic
quiet

Carl K

[Stefan Bader (smb)]

This sound like tied to the changes to the ec code which enable some callbacks sooner on boot. Which would make the same behaviour appear with the latest -21 kernels from proposed.
The DSDT of you had two errors but they where somewhere in the thermal zone and I am not sure this gets into play that early. I attached a changed version anyway. Loading a custom DSDT should be fixed for Intrepid. So you just can give it a try.
From the messages it seems the hang is between bus_init and ec_add which is large enough to be unhelpful. I'd have to add more debugging. I would try to get something together for a 2.6.26-5 kernel. But it may take a bit.

[Carl Karsten (carlfk)]

how do I use DSDT?

I treid http://gaugusch.at/kernel.shtml

root@dv67:/boot# ./initrd-add-dsdt initrd.img-2.6.26-5-generic DSDT.aml
+ '[' 2 -ne 2 ']'
++ mktemp -d
+ tempcpio=/tmp/tmp.CxUPQ10771
+ trap 'rm -rf $tempcpio' 0 1 2 3 15
+ gunzip -c initrd.img-2.6.26-5-generic
+ cp -f DSDT.aml /tmp/tmp.CxUPQ10771/DSDT.aml
+ cd /tmp/tmp.CxUPQ10771
+ echo DSDT.aml
+ cpio -H newc -o -A -O /tmp/tmp.CxUPQ10771/initramfs.cpio
69 blocks
+ cd /boot
+ gzip -c /tmp/tmp.CxUPQ10771/initramfs.cpio
+ rm -rf /tmp/tmp.CxUPQ10771

root@dv67:/boot# reboot

paused at
[ 0.560301] ACPI: EC: non-query interrupt received, switching to interrupt mo
hit power to continue.

carl@dv67:~$ dmesg | grep "Looking for DSDT in initramfs"
(nothing)

curious: is this going to have any effect before:
[ 0.684193] checking if image is initramfs... it is

cuz the pause comes before that happens.

[Stefan Bader (smb)]

This should work by putting DSDT.aml into /etc/initramfs-tools and then running
update-initramfs -u -k $(uname -r)

That would happen very much to the beginning

[ 30.747160] Early unpacking initramfs... done
[ 31.050966] ACPI: Core revision 20070126
[ 31.051091] ACPI: Looking for DSDT in initramfs... error, file /DSDT.aml not found.
...
[ 31.613453] ACPI: EC: Look up EC in DSDT
[ 31.615099] ACPI: BIOS _OSI(Linux) query ignored via DMI
[ 31.615702] ACPI: Interpreter enabled

[Carl Karsten (carlfk)]

[ 0.000000] ACPI: DSDT 7BF5C167, 87DF (r1 NVIDIA MCP67 6040000 MSFT 3000000)

[ 0.448028] ACPI: Core revision 20080321
[ 0.450665] ACPI: Looking for DSDT in initramfs... successfully read 34783 bytes from /DSDT.aml.
[ 0.450826] ACPI: Override [DSDT- MCP67], this is unsafe: tainting kernel
[ 0.450893] ACPI: Table DSDT replaced by host OS
[ 0.451042] ACPI: DSDT 00000000, 87DF (r1 NVIDIA MCP67 6040000 MSFT 3000000)
[ 0.451205] ACPI: DSDT override uses original SSDTs unless "acpi_no_auto_ssdt"
[ 0.456028] ENABLING IO-APIC IRQs

[ 0.584031] Setting up standard PCI resources
[ 0.584683] ACPI: EC: Look up EC in DSDT
[ 0.586820] ACPI: BIOS _OSI(Linux) query ignored via DMI
[ 0.587522] ACPI: Interpreter enabled
[ 0.587583] ACPI: (supports S0 S3 S4 S5)
[ 0.587828] ACPI: Using IOAPIC for interrupt routing
[ 0.588053] ACPI: EC: non-query interrupt received, switching to interrupt mode

pause till I hit power

I don't quite understand the wording of "DSDT override uses original SSDTs unless "acpi_no_auto_ssdt" so I tried it:

[ 0.450665] ACPI: Looking for DSDT in initramfs... successfully read 34783 bytes from /DSDT.aml.
[ 0.450826] ACPI: Override [DSDT- MCP67], this is unsafe: tainting kernel
[ 0.450893] ACPI: Table DSDT replaced by host OS
[ 0.451042] ACPI: DSDT 00000000, 87DF (r1 NVIDIA MCP67 6040000 MSFT 3000000)
[ 0.452028] ACPI: SSDT ignored due to "acpi_no_auto_ssdt"

and still waits at
[ 0.588165] ACPI: EC: non-query interrupt received, switching to interrupt mode

[Stefan Bader (smb)]

Ok, doesn't change anything. I will prepare a debug kernel based in 2.6.26-5 and post you a link when I am done.

[Stefan Bader (smb)]

Ok, I uploaded a first version for debugging. It lies at
http://people.ubuntu.com/~smb/bug254668

Can you install this and post the output. Thanks

[Carl Karsten (carlfk)]

no help.

[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 2.6.26-5-generic (root@eddie) (gcc version 4.3.1 (Ubuntu 4.3.1-8ubuntu1) ) #1 SMP Wed Aug 27 19:44:26 UTC 2008 (Ubuntu 2.6.26-5.13ecdbg-generic)
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: 0000000000000000 - 000000000009e000 (usable)
[ 0.000000] BIOS-e820: 000000000009e000 - 00000000000a0000 (reserved)
[ 0.000000] BIOS-e820: 00000000000d2000 - 0000000000100000 (reserved)
[ 0.000000] BIOS-e820: 0000000000100000 - 000000007bf50000 (usable)
[ 0.000000] BIOS-e820: 000000007bf50000 - 000000007bf65000 (ACPI data)
[ 0.000000] BIOS-e820: 000000007bf65000 - 000000007bf66000 (ACPI NVS)
[ 0.000000] BIOS-e820: 000000007bf66000 - 0000000080000000 (reserved)
[ 0.000000] BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
[ 0.000000] BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
[ 0.000000] BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
[ 0.000000] BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved)
[ 0.000000] 1087MB HIGHMEM available.
[ 0.000000] 896MB LOWMEM available.
[ 0.000000] found SMP MP-table at [c00f8220] 000f8220
[ 0.000000] Entering add_active_range(0, 0, 507728) 0 entries of 256 used
[ 0.000000] Zone PFN ranges:
[ 0.000000] DMA 0 -> 4096
[ 0.000000] Normal 4096 -> 229376
[ 0.000000] HighMem 229376 -> 507728
[ 0.000000] Movable zone start PFN for each node
[ 0.000000] early_node_map[1] active PFN ranges
[ 0.000000] 0: 0 -> 507728
[ 0.000000] On node 0 totalpages: 507728
[ 0.000000] DMA zone: 36 pages used for memmap
[ 0.000000] DMA zone: 0 pages reserved
[ 0.000000] DMA zone: 4060 pages, LIFO batch:0
[ 0.000000] Normal zone: 1980 pages used for memmap
[ 0.000000] Normal zone: 223300 pages, LIFO batch:31
[ 0.000000] HighMem zone: 2447 pages used for memmap
[ 0.000000] HighMem zone: 275905 pages, LIFO batch:31
[ 0.000000] Movable zone: 0 pages used for memmap
[ 0.000000] DMI present.
[ 0.000000] ACPI: RSDP 000F8250, 0024 (r2 PTLTD )
[ 0.000000] ACPI: XSDT 7BF5C0FB, 006C (r1 HPQOEM SLIC-MPC 6040000 LTP 0)
[ 0.000000] ACPI: FACP 7BF649BA, 00F4 (r3 NVIDIA MCP67-M 6040000 PTL_ F4240)
[ 0.000000] ACPI: DSDT 7BF5C167, 87DF (r1 NVIDIA MCP67 6040000 MSFT 3000000)
[ 0.000000] ACPI: FACS 7BF65FC0, 0040
[ 0.000000] ACPI: TCPA 7BF64AAE, 0032 (r1 Phoeni x 6040000 TL 0)
[ 0.000000] ACPI: SRAT 7BF64AE0, 00A0 (r1 AMD HAMMER 6040000 AMD 1)
[ 0.000000] ACPI: SSDT 7BF64B80, 0206 (r1 PTLTD POWERNOW 6040000 LTP 1)
[ 0.000000] ACPI: MCFG 7BF64D86, 003C (r1 PTLTD MCFG 6040000 LTP 0)
[ 0.000000] ACPI: HPET 7BF64DC2, 0038 (r1 PTLTD HPETTBL 6040000 LTP 1)
[ 0.000000] ACPI: APIC 7BF64DFA, 0068 (r1 PTLTD APIC 6040000 LTP 0)
[ 0.000000] ACPI: BOOT 7BF64E62, 0028 (r1 PTLTD $SBFTBL$ 6040000 LTP 1)
[ 0.000000] ACPI: SLIC 7BF64E8A, 0176 (r1 HPQOEM SLIC-MPC 6040000 LTP ...

[Leann Ogasawara (leannogasawara)]

The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test:

1) If you are comfortable installing packages on your own, the linux-image-2.6.27-* package is currently available for you to install and test.

--or--

2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD.

Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback.

[Carl Karsten (carlfk)]

http://people.ubuntu.com/~smb/bug254668/linux-image-2.6.26-5-generic_2.6.26-5.13ecdbg2_i386.deb

looks like debug output overflowed the dmesg buffer, so I took a picture when it stopped, and quicly after i started it, but I missed some.

Now I need it to pause every few lines like the .27 kernel was doing.

[Stefan Bader (smb)]

Got the next iteration of the debug kernel up. Please try and post the results.

[Carl Karsten (carlfk)]

(01:05:29 PM) smb: CarlFK, I put up another debug kernel for you to my peoples page, I you could give that a try and add the output to the report...

http://people.ubuntu.com/~smb/bug254668/linux-image-2.6.26-5-generic_2.6.26-5.13ecdbg3_i386.deb

around the hang - btw I waited a good 10 seconds, but the timestamp doesn't show it, so it's like the clock paused?

[ 0.604031] ACPI: acpi_bus_scan()
[ 0.604031] ACPI: Adding CPU0
[ 0.604031] PM: Adding info for acpi:ACPI0007:00
[ 0.604031] ACPI: Adding CPU1
[ 0.604031] PM: Adding info for acpi:ACPI0007:01
[ 0.604031] ACPI: Adding _SB
[ 0.604031] PM: Adding info for acpi:device:00
[ 0.604031] ACPI: Adding SLPB
[ 0.604031] PM: Adding info for acpi:PNP0C0E:00
[ 0.604031] ACPI: Adding ACAD
[ 0.604031] PM: Adding info for acpi:ACPI0003:00
[ 0.604031] ACPI: Adding BAT0
[ 0.606598] ACPI: EC: non-query interrupt received, switching to interrupt mode

pause

[ 0.606676] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.616031] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.616031] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.616031] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.616031] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.616031] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.616031] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.616031] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.617599] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.619810] PM: Adding info for acpi:PNP0C0A:00
[ 0.619876] ACPI: Adding LID
[ 0.619957] PM: Adding info for acpi:PNP0C0D:00
[ 0.619995] ACPI: Adding QLBD

[Stefan Bader (smb)]

Somehow there is something related to the BAT0 device. The things that are clear:
BAT0 has a _STA (dynamic status) method which gets called when adding the object. This status method accesses one bit in the embedded controller which will (that is my assumption since the address space handler for the EC has been installed) call the space handler.

That would first enable burst mode, read from the embedded controller address and then disables the burst mode. Enabling the burst mode should generate the first GPE interrupt that turns on GPE mode.
Here is the first part I don't understand. Between the two messages the pause is supposed to be is one function call that does nothing. It would make a little bit more sense if the pause would be one message later.

Also, with or without GPE mode, whole code uses either msleep and compares jiffie values or uses wait_event_timeout which also should abort after some time. Which does not happen. That again would somehow make a bit of sense with your observation that the timestamps did not seem to be advanced after the pause. In that case maybe the first msleep while still in polling mode is stuck and things advance after pressing the power button or toggling AC because that causes an interruption which advances the timers again. I will try to prepare a kernel that looks ahead that road. Maybe in the meantime, what happens when playing with hpet=disable or highres=off?

[Carl Karsten (carlfk)]

[ 0.687366] ACPI: PCI Interrupt Link [LPMU] (IRQs *11)
[ 0.688855] Linux Plug and Play Support v0.97 (c) Adam Belay
[ 0.688855] pnp: PnP ACPI init
[ 0.688855] PM: Adding info for No Bus:pnp0
[ 0.688855] ACPI: bus type pnp registered
[ 0.689888] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.689888] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.689888] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.690797] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.690807] PM: Adding info for pnp:00:00
[ 0.691919] PM: Adding info for pnp:00:01
[ 0.692602] PM: Adding info for pnp:00:02
[ 0.693528] PM: Adding info for pnp:00:03
[ 0.693888] PM: Adding info for pnp:00:04
[ 0.693888] PM: Adding info for pnp:00:05
[ 0.693888] PM: Adding info for pnp:00:06
[ 0.693888] PM: Adding info for pnp:00:07
[ 0.693888] PM: Adding info for pnp:00:08
[ 0.693888] PM: Adding info for pnp:00:09
[ 0.693888] PM: Adding info for pnp:00:0a
[ 0.693888] PM: Adding info for pnp:00:0b
[ 0.693888] pnp: PnP ACPI: found 12 devices
[ 0.693888] ACPI: ACPI bus type pnp unregistered
[ 0.693888] PnPBIOS: Disabled by ACPI PNP
[ 0.693898] PCI: Using ACPI for IRQ routing

pause

[ 0.703099] NET: Registered protocol family 8
[ 0.703160] NET: Registered protocol family 20
[ 0.703977] NetLabel: Initializing
[ 0.704036] NetLabel: domain hash size = 128
[ 0.704095] NetLabel: protocols = UNLABELED CIPSOv4
[ 0.704167] NetLabel: unlabeled traffic allowed by default
[ 0.704234] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 31
[ 0.704473] hpet0: 3 32-bit timers, 25000000 Hz
[ 0.705579] AppArmor: AppArmor Filesystem Enabled
[ 0.705643] ACPI: acpi_rtc_init()
[ 0.705722] ACPI: RTC can wake from S4
[ 0.707129] Switched to high resolution mode on CPU 0
[ 0.707176] system 00:02: iomem range 0xe0000000-0xefffffff could not be reserved
[ 0.707176] system 00:03: ioport range 0x1000-0x107f has been reserved
[ 0.707176] system 00:03: ioport range 0x1080-0x10ff has been reserved
[ 0.707176] system 00:03: ioport range 0x1400-0x147f has been reserved
[ 0.707176] system 00:03: ioport range 0x1480-0x14ff has been reserved

[Carl Karsten (carlfk)]

looks like more is going to dmesg than the screen. guessing the extra debugging?

[ 0.695225] ACPI: bus type pnp registered
[ 0.695225] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.695225] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.695324] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.695324] ACPI: EC: acpi_ec_gpe_handler() returns handled
[ 0.695690] PM: Adding info for pnp:00:00
[ 0.696969] PM: Adding info for pnp:00:01
[ 0.697816] PM: Adding info for pnp:00:02
[ 0.698907] PM: Adding info for pnp:00:03
[ 0.699225] PM: Adding info for pnp:00:04
[ 0.699225] PM: Adding info for pnp:00:05
[ 0.699225] PM: Adding info for pnp:00:06
[ 0.699225] PM: Adding info for pnp:00:07
[ 0.699225] PM: Adding info for pnp:00:08
[ 0.699225] PM: Adding info for pnp:00:09
[ 0.699225] PM: Adding info for pnp:00:0a
[ 0.699225] PM: Adding info for pnp:00:0b
[ 0.699516] pnp: PnP ACPI: found 12 devices
[ 0.699516] ACPI: ACPI bus type pnp unregistered
[ 0.699516] PnPBIOS: Disabled by ACPI PNP
[ 0.699516] PCI: Using ACPI for IRQ routing

pause

[ 0.710132] NET: Registered protocol family 8
[ 0.710192] NET: Registered protocol family 20
[ 0.711012] NetLabel: Initializing
[ 0.711071] NetLabel: domain hash size = 128
[ 0.711131] NetLabel: protocols = UNLABELED CIPSOv4
[ 0.711202] NetLabel: unlabeled traffic allowed by default
[ 0.711225] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 31
[ 0.711225] hpet0: 3 32-bit timers, 25000000 Hz
[ 0.711225] AppArmor: AppArmor Filesystem Enabled
[ 0.711225] ACPI: acpi_rtc_init()
[ 0.711225] ACPI: RTC can wake from S4
[ 0.713426] Switched to high resolution mode on CPU 0
[ 0.713425] Switched to high resolution mode on CPU 1
[ 0.713442] system 00:02: iomem range 0xe0000000-0xefffffff could not be reserved
[ 0.713520] system 00:03: ioport range 0x1000-0x107f has been reserved
[ 0.713584] system 00:03: ioport range 0x1080-0x10ff has been reserved
[ 0.713653] system 00:03: ioport range 0x1400-0x147f has been reserved
[ 0.713717] system 00:03: ioport range 0x1480-0x14ff has been reserved
[ 0.713780] system 00:03: ioport range 0x1800-0x187f has been reserved
[ 0.713843] system 00:03: ioport range 0x1880-0x18ff has been reserved
[ 0.713912] system 00:04: ioport range 0x360-0x361 has been reserved
:

[Marques Johansson (marques)]

I have an AMD Turion 64 X2 running the Intrepid/x86_64 (HP Pavilion dv2000).
I didn't have any problem with 2.6.26-5, but with 2.6.27(-1 and -2) the kernel stops booting after "ACPI: RTC can wake from S4". The system will boot with acpi=off, but that prevents the non-free nvidia driver from working properly.

[Marques Johansson (marques)]

Actually, 2.6.27-2 (perhaps -1) as well, did boot, but it took about 9 minutes (in Single User mode) before I could get to the "drop to root sell prompt". There was a very long delay where I previously believed it was frozen ("ACPI: RTC can wake from S4"). It also took a long delay after "sda:" (when the partitions are detected, I believe). And then there was another long delay after "Setting kernel variables: wine"

The dmesg log shows this at a few points:
BUG: soft lockup - CPU#0 stuck for 155s! [swapper:0]
BUG: soft lockup - CPU#1 stuck for 155s! [modprobe:2174]
BUG: soft lockup - CPU#0 stuck for 144s! [swapper:0]
BUG: soft lockup - CPU#0 stuck for 144s! [uname:4136]

I'm continuing the boot - I should be able to attach the full dmesg log later (already seeing more of these 2 minute delays, so it may take a while)

[Carl Karsten (carlfk)]

Marques Johansson wrote:
> Actually, 2.6.27-2 (perhaps -1) as well, did boot, but it took about 9
> minutes (in Single User mode) before I could get to the "drop to root
> sell prompt". There was a very long delay where I previously believed
> it was frozen ("ACPI: RTC can wake from S4"). It also took a long delay
> after "sda:" (when the partitions are detected, I believe). And then
> there was another long delay after "Setting kernel variables: wine"
>
> The dmesg log shows this at a few points:
> BUG: soft lockup - CPU#0 stuck for 155s! [swapper:0]
> BUG: soft lockup - CPU#1 stuck for 155s! [modprobe:2174]
> BUG: soft lockup - CPU#0 stuck for 144s! [swapper:0]
> BUG: soft lockup - CPU#0 stuck for 144s! [uname:4136]
>

I think you want to post to:

.27 CPU#1 stuck for 113s! [events/1:10]
https://bugs.launchpad.net/bugs/262437

I am having just enough troubles with both kernels it is hard to tell what is a
different bug.

Carl K

[Stefan Bader (smb)]

Since there is still this strange stop of advancing the timestamps: I found some hint on another thread which mentioned to use noacpitimer as a boot option. Could one of you try whether this one changes one of the problems?

[Carl Karsten (carlfk)]

[ 0.000000] Kernel command line: root=UUID=270934eb-b4c5-4f17-87e4-8ebea9d98ed3 ro vga=6 noacpitimer

no help

[Carl Karsten (carlfk)]

(08:45:36 AM) mjg59: CarlFK: You mean noapictimer, right?

no help.

[ 0.000000] Kernel command line: root=UUID=270934eb-b4c5-4f17-87e4-8ebea9d98ed3 ro vga=6 noapictimer

[ 0.700336] PM: Adding info for pnp:00:0b
[ 0.700336] pnp: PnP ACPI: found 12 devices
[ 0.700336] ACPI: ACPI bus type pnp unregistered
[ 0.700398] PnPBIOS: Disabled by ACPI PNP
[ 0.700398] PCI: Using ACPI for IRQ routing

pause

[ 0.711939] NET: Registered protocol family 8
[ 0.711999] NET: Registered protocol family 20

[Carl Karsten (carlfk)]

(09:18:35 AM) smb_tp: CarlFK, I did not look to deeply yet. But I remember there have been several hangs. Can you try noapictimer without too much effort on a 2.6.27?

[ 0.000000] Kernel command line: root=UUID=270934eb-b4c5-4f17-87e4-8ebea9d98ed3 ro vga=6 noapictimer

doesn't pause at "PCI: Using ACPI for IRQ routing" but does pause at some other places.

To continue, don't have to hit the power button - keyboard events, like tapping the shift key, will un pause it. If I hold down the shift key for the whole boot process, it doesn't seem to pause (guessing keyboard repeat?)

(10:18:12 AM) CarlFK: smb_tp: so I was trying to note all the places .27 pauses, and i ran out of battery
(10:18:56 AM) CarlFK: plugged in, booted, and it seems like it is still pausing, but continuing on its own without me hitting any keys
(10:19:17 AM) CarlFK: as the battery charges, does that generate some sort of event, similar to hitting the power button?
(10:22:10 AM) smb_tp: CarlFK, I can't say for sure. I won't think so on charge.

below is the dmesg from booting with power, then without. when it paused, I gave it about 5 seconds, then tapped the shift key.

Used this .py to look for the gaps:

dmesgs = open('/mnt/nfs/cw1b/carl/a/dmesg9.txt').read().split('\n')
# make a list of (tiems as floats, original line (with ts))
l=[]
for i in dmesgs:
    if i: # skip blank lines (like at the end)
        ts=i[1:13]
        # print ts, i
        l.append( (float(ts), i) )
# look for gaps
for i in xrange(len(l)-1):
    d = l[i+1][0] - l[i][0]
    if d>1:
        for x in l[i-3:i+1]: print x[1]
        print "(pause)"
        for x in l[i+1:i+3]: print x[1]
        print

gaps in boot while on AC power (on a drained battery, so it was charging too):

[ 3.030625] libata version 3.00 loaded.
[ 3.059201] usb usb1: configuration #1 chosen from 1 choice
[ 3.059298] hub 1-0:1.0: USB hub found
[ 3.059370] hub 1-0:1.0: 7 ports detected
(pause)
[ 58.727075] Clocksource tsc unstable (delta = 4398044420614 ns)
[ 58.728022] ACPI: PCI Interrupt Link [Z018] enabled at IRQ 18

[ 58.728354] ohci_hcd 0000:00:04.0: irq 18, io mem 0xf6487000
[ 58.834595] usb usb2: configuration #1 chosen from 1 choice
[ 58.834689] hub 2-0:1.0: USB hub found
[ 58.834756] hub 2-0:1.0: 2 ports detected
(pause)
[ 147.069064] ACPI: PCI Interrupt Link [LUS2] enabled at IRQ 22
[ 147.069137] ehci_hcd 0000:00:02.1: PCI INT B -> Link[LUS2] -> GSI 22 (level, low) -> IRQ 22

[ 147.069317] ehci_hcd 0000:00:02.1: new USB bus registered, assigned bus number 3
[ 147.069418] ehci_hcd 0000:00:02.1: debug port 1
[ 147.069486] ehci_hcd 0000:00:02.1: cache line size of 64 is not supported
[ 147.069501] ehci_hcd 0000:00:02.1: irq 22, io mem 0xf6489000
(pause)
[ 161.672469] usb 2-1: new full speed USB device using ohci_hcd and address 2
[ 174.346769] ehci_hcd 0000:00:02.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004

[ 147.069418] ehci_hcd 0000:00:02.1: debug port 1
[ 147.069486] ehci_hcd 0000:00:02.1: cache line size of 64 is not supported
[ 147.069501] ehci_hcd 0000:00:02.1: irq 22, io mem 0xf6489000
[ 161.672469] usb 2-1: new full speed USB device using ohci_hcd and address 2
(p...

[Carl Karsten (carlfk)]

gaps in boot while on battery:

[ 3.092828] ohci_hcd 0000:00:04.0: setting latency timer to 64
[ 3.092831] ohci_hcd 0000:00:04.0: OHCI Host Controller
[ 3.092916] ohci_hcd 0000:00:04.0: new USB bus registered, assigned bus number 2
[ 3.093002] ohci_hcd 0000:00:04.0: irq 18, io mem 0xf6487000
(pause)
[ 13.611857] Clocksource tsc unstable (delta = 4398045405880 ns)
[ 13.614080] usb usb2: configuration #1 chosen from 1 choice

[ 13.611857] Clocksource tsc unstable (delta = 4398045405880 ns)
[ 13.614080] usb usb2: configuration #1 chosen from 1 choice
[ 13.614176] hub 2-0:1.0: USB hub found
[ 13.614245] hub 2-0:1.0: 2 ports detected
(pause)
[ 66.849293] ACPI: PCI Interrupt Link [LUS2] enabled at IRQ 22
[ 66.849367] ehci_hcd 0000:00:02.1: PCI INT B -> Link[LUS2] -> GSI 22 (level, low) -> IRQ 22

[ 66.952571] ehci_hcd 0000:00:02.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
[ 66.952735] usb usb3: configuration #1 chosen from 1 choice
[ 66.952766] hub 3-0:1.0: USB hub found
[ 66.952775] hub 3-0:1.0: 7 ports detected
(pause)
[ 151.083790] ACPI: PCI Interrupt Link [Z019] enabled at IRQ 22
[ 151.083858] ehci_hcd 0000:00:04.1: PCI INT B -> Link[Z019] -> GSI 22 (level, low) -> IRQ 22

[ 151.089361] ehci_hcd 0000:00:04.1: new USB bus registered, assigned bus number 4
[ 151.089466] ehci_hcd 0000:00:04.1: debug port 1
[ 151.089529] ehci_hcd 0000:00:04.1: cache line size of 64 is not supported
[ 151.089535] ehci_hcd 0000:00:04.1: irq 22, io mem 0xf6489400
(pause)
[ 165.763727] usb 2-1: new full speed USB device using ohci_hcd and address 2
[ 165.866916] ehci_hcd 0000:00:04.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004

[ 165.866916] ehci_hcd 0000:00:04.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
[ 165.867105] usb usb4: configuration #1 chosen from 1 choice
[ 165.867133] hub 4-0:1.0: USB hub found
[ 165.867140] hub 4-0:1.0: 2 ports detected
(pause)
[ 174.346784] hub 2-0:1.0: unable to enumerate USB device on port 1
[ 183.274937] pata_acpi 0000:00:06.0: setting latency timer to 64

[ 165.867105] usb usb4: configuration #1 chosen from 1 choice
[ 165.867133] hub 4-0:1.0: USB hub found
[ 165.867140] hub 4-0:1.0: 2 ports detected
[ 174.346784] hub 2-0:1.0: unable to enumerate USB device on port 1
(pause)
[ 183.274937] pata_acpi 0000:00:06.0: setting latency timer to 64
[ 183.275380] ACPI: PCI Interrupt Link [LSI0] enabled at IRQ 23

[ 183.275645] forcedeth: Reverse Engineered nForce ethernet driver. Version 0.61.
[ 183.276057] ACPI: PCI Interrupt Link [LMAC] enabled at IRQ 20
[ 183.276124] forcedeth 0000:00:0a.0: PCI INT A -> Link[LMAC] -> GSI 20 (level, low) -> IRQ 20
[ 183.276211] forcedeth 0000:00:0a.0: setting latency timer to 64
(pause)
[ 203.965474] forcedeth 0000:00:0a.0: ifname eth0, PHY OUI 0x732 @ 1, addr 00:1e:68:09:25:f6
[ 203.971700] forcedeth 0000:00:0a.0: highdma pwrctl mgmt timirq lnktim msi desc-v3

[ 204.032757] scsi0 : pata_amd
[ 204.032916] scsi1 : pata_amd
[ 204.033316] ata1: PATA max UDMA/133 cmd 0x1f0 ctl 0x3f6 bmdma 0x30c0 irq 14
[ 204.033381] ata2: PATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0x30c8 irq 15
(pause)
[ 218.112276] ata1.00: ATAPI: TSSTcorp CDDVDW ...

[Stefan Bader (smb)]

Some more digging around the C1E hint. One thing is that 2.6.27 uses a special idle function where 2.6.26 still does that somewhat differently. Is this the right direction? Can C1E be disabled from the BIOS? Probably less promising since I don't know whether this gets into trouble with C1E, is to try idle=poll (not good for normal operation).

[Stefan Bader (smb)]

I also uploaded http://people.ubuntu.com/~smb/bug254668/linux-headers-2.6.27-3-generic_2.6.27-3.4smb1_i386.deb which contains one fix to clockevents that went to the mailing list today.

[Carl Karsten (carlfk)]

http://people.ubuntu.com/~smb/bug254668/linux-image-2.6.27-3-generic_2.6.27-3.3smb2_i386.deb

[ 3.087260] hub 2-0:1.0: USB hub found
[ 3.087330] hub 2-0:1.0: 2 ports detected
[ 3.098646] SCSI subsystem initialized
[ 3.122770] libata version 3.00 loaded.
(pause)
[ 13.701303] Clocksource tsc unstable (delta = 4398045486566 ns)
[ 13.702453] ACPI: PCI Interrupt Link [LUS2] enabled at IRQ 22

[ 13.702703] ehci_hcd 0000:00:02.1: new USB bus registered, assigned bus number 3
[ 13.702809] ehci_hcd 0000:00:02.1: debug port 1
[ 13.702872] ehci_hcd 0000:00:02.1: cache line size of 64 is not supported
[ 13.702888] ehci_hcd 0000:00:02.1: irq 22, io mem 0xf6489000
(pause)
[ 19.272505] usb 2-1: new full speed USB device using ohci_hcd and address 2
[ 22.373778] ehci_hcd 0000:00:02.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004

[ 13.702809] ehci_hcd 0000:00:02.1: debug port 1
[ 13.702872] ehci_hcd 0000:00:02.1: cache line size of 64 is not supported
[ 13.702888] ehci_hcd 0000:00:02.1: irq 22, io mem 0xf6489000
[ 19.272505] usb 2-1: new full speed USB device using ohci_hcd and address 2
(pause)
[ 22.373778] ehci_hcd 0000:00:02.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
[ 22.373997] usb usb3: configuration #1 chosen from 1 choice

[ 22.373778] ehci_hcd 0000:00:02.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
[ 22.373997] usb usb3: configuration #1 chosen from 1 choice
[ 22.374086] hub 3-0:1.0: USB hub found
[ 22.374153] hub 3-0:1.0: 7 ports detected
(pause)
[ 26.063772] ACPI: PCI Interrupt Link [Z019] enabled at IRQ 22
[ 26.063839] ehci_hcd 0000:00:04.1: PCI INT B -> Link[Z019] -> GSI 22 (level, low) -> IRQ 22

[ 26.064012] ehci_hcd 0000:00:04.1: new USB bus registered, assigned bus number 4
[ 26.064109] ehci_hcd 0000:00:04.1: debug port 1
[ 26.064172] ehci_hcd 0000:00:04.1: cache line size of 64 is not supported
[ 26.064179] ehci_hcd 0000:00:04.1: irq 22, io mem 0xf6489400
(pause)
[ 29.146302] ehci_hcd 0000:00:04.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
[ 29.146493] usb usb4: configuration #1 chosen from 1 choice

[ 29.146302] ehci_hcd 0000:00:04.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
[ 29.146493] usb usb4: configuration #1 chosen from 1 choice
[ 29.146585] hub 4-0:1.0: USB hub found
[ 29.146650] hub 4-0:1.0: 2 ports detected
(pause)
[ 32.772346] usb 2-1: device not accepting address 2, error -62
[ 32.810132] pata_acpi 0000:00:06.0: setting latency timer to 64

[ 29.146585] hub 4-0:1.0: USB hub found
[ 29.146650] hub 4-0:1.0: 2 ports detected
[ 32.772346] usb 2-1: device not accepting address 2, error -62
[ 32.810132] pata_acpi 0000:00:06.0: setting latency timer to 64
(pause)
[ 35.679016] hub 2-0:1.0: unable to enumerate USB device on port 1
[ 32.810132] ACPI: PCI Interrupt Link [LSI0] enabled at IRQ 23

[ 32.810132] ACPI: PCI Interrupt Link [LSI0] enabled at IRQ 23
[ 32.810132] pata_acpi 0000:00:09.0: PCI INT A -> Link[LSI0] -> GSI 23 (level, low) -> IRQ 23
[ 32.810132] pata_acpi 0000:00:09.0: setting latency timer to 64
[ 32.810132] pata_acpi 0000:00:09.0: PCI INT A disabled
(pause)
[ 35.681069] forcedeth: Reverse Engineered ...

[Stefan Bader (smb)]

Unfortunately nothing looks out of place to me (beside of the pauses of course). I put together all the patches that were discussed on the mailing list and uploaded a kernel with that. If you could try that as well...

If this still gives pauses, maybe try "highres=off nohz=off" for boot parameters.

And maybe try ALT+Print+q and ALT+Print+w. Since hitting a key makes the boot running on, the sysrq keys should have some effect. Use those only once or twice. They generate a bit of output to dmesg.

[Carl Karsten (carlfk)]

[ 0.000000] Kernel command line: root=UUID=270934eb-b4c5-4f17-87e4-8ebea9d98ed3 ro vga=6 nohz=off single

[ 3.225944] ehci_hcd 0000:00:04.1: new USB bus registered, assigned bus number 2
[ 3.226041] ehci_hcd 0000:00:04.1: debug port 1
[ 3.226104] ehci_hcd 0000:00:04.1: cache line size of 64 is not supported
[ 3.226111] ehci_hcd 0000:00:04.1: irq 22, io mem 0xf6489400
(pause)
[ 24.384387] Clocksource tsc unstable (delta = 4398045992829 ns)
[ 24.384532] ehci_hcd 0000:00:04.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004

[ 24.384532] ehci_hcd 0000:00:04.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
[ 24.384785] usb usb2: configuration #1 chosen from 1 choice
[ 24.384885] hub 2-0:1.0: USB hub found
[ 24.384957] hub 2-0:1.0: 2 ports detected
(pause)
[ 174.074713] BUG: soft lockup - CPU#1 stuck for 161s! [swapper:0]
[ 174.074713] Modules linked in: ohci1394(+) pata_acpi(+) forcedeth(+) ohci_hcd(+) ieee1394 libata ehci_hcd(+) scsi_mod dock usbcore thermal processor fan uvesafb cn fuse fbcon tileblit font bitblit softcursor

[ 174.074711] [<c02dc72b>] cpuidle_idle_call+0x7b/0xd0
[ 174.074711] [<c010288d>] cpu_idle+0x7d/0x130
[ 174.074711] [<c0385353>] rest_init+0x53/0x60
[ 174.074711] =======================
(pause)
[ 285.527453] ACPI: PCI Interrupt Link [LUS0] enabled at IRQ 18
[ 285.527527] ohci_hcd 0000:00:02.0: PCI INT A -> Link[LUS0] -> GSI 18 (level, low) -> IRQ 18

[ 285.728284] ohci_hcd 0000:00:04.0: setting latency timer to 64
[ 285.728287] ohci_hcd 0000:00:04.0: OHCI Host Controller
[ 285.728371] ohci_hcd 0000:00:04.0: new USB bus registered, assigned bus number 4
[ 285.728456] ohci_hcd 0000:00:04.0: irq 18, io mem 0xf6487000
(pause)
[ 291.714150] usb 2-2: new high speed USB device using ehci_hcd and address 3
[ 291.716358] usb usb4: configuration #1 chosen from 1 choice

[ 291.714150] usb 2-2: new high speed USB device using ehci_hcd and address 3
[ 291.716358] usb usb4: configuration #1 chosen from 1 choice
[ 291.716450] hub 4-0:1.0: USB hub found
[ 291.716524] hub 4-0:1.0: 2 ports detected
(pause)
[ 298.420370] pata_acpi 0000:00:06.0: setting latency timer to 64
[ 298.420865] ACPI: PCI Interrupt Link [LSI0] enabled at IRQ 23

[ 299.023043] ata1: SATA max UDMA/133 abar m8192@0xf6484000 port 0xf6484100 irq 221
[ 299.023117] ata2: SATA max UDMA/133 abar m8192@0xf6484000 port 0xf6484180 irq 221
[ 299.023193] ata3: SATA max UDMA/133 abar m8192@0xf6484000 port 0xf6484200 irq 221
[ 299.023267] ata4: SATA max UDMA/133 abar m8192@0xf6484000 port 0xf6484280 irq 221
(pause)
[ 305.614892] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 305.615136] ieee1394: Host added: ID:BUS[0-00:1023] GUID[00241b00964cac00]

[ 305.615739] ata1.00: ATA-8: Hitachi HTS542525K9SA00, BBFOC32P, max UDMA/100
[ 305.615807] ata1.00: 488397168 sectors, multi 16: LBA48
[ 305.616840] ata1.00: configured for UDMA/100
[ 306.202005] ata2: SATA link down (SStatus 0 SControl 300)
(pause)
[ 311.101967] ata3: SATA link down (SStatus 0 SControl 300)
[ 311.805293] ata4: SATA link down (SStatus 0 SControl 300)

[ 312.220938] Driver 'sr' needs updating - please use bus_type methods
[ 312.233383] sr0: scs...

[Stefan Bader (smb)]

So the soft lockups just seem to be more evidence to my theory. If I just would know better all this timer and tickless stuff. What seems to happen is that your machine enters idle and probably should be awoken by a timer tick. Which somehow doesn't happen. Interrupts are enabled to anything that causes an interrupt will also awake the CPU.
Upstream had one more change (to increase the minimum timer delay if the current minimum can't be programmed) which I included and put to -3.3smb4.
Any chance you could get a timer dump (alt+print+q) during a pause, or at least cat /proc/timer_list after boot?

[Carl Karsten (carlfk)]

carl@dv67:~$ cat /proc/timer_list |xclip

Timer List Version: v0.3
HRTIMER_MAX_CLOCK_BASES: 2
now at 354351313848 nsecs

cpu: 0
 clock 0:
  .index: 0
  .resolution: 1 nsecs
  .get_time: ktime_get_real
  .offset: 1220656718200590072 nsecs
active timers:
 clock 1:
  .index: 1
  .resolution: 1 nsecs
  .get_time: ktime_get
  .offset: 0 nsecs
active timers:
 #0: <f4d73e54>, tick_sched_timer, S:01, tick_nohz_restart_sched_tick, swapper/0
 # expires at 354352000000 nsecs [in 686152 nsecs]
 #1: <f4d73e54>, hrtimer_wakeup, S:01, do_nanosleep, atd/6070
 # expires at 3779664857728 nsecs [in 3425313543880 nsecs]
  .expires_next : 354352000000 nsecs
  .hres_active : 1
  .nr_events : 16864
  .nohz_mode : 2
  .idle_tick : 354328000000 nsecs
  .tick_stopped : 0
  .idle_jiffies : 13581
  .idle_calls : 32940
  .idle_sleeps : 3724
  .idle_entrytime : 354348013048 nsecs
  .idle_waketime : 354325547568 nsecs
  .idle_exittime : 354345026528 nsecs
  .idle_sleeptime : 334352201679 nsecs
  .last_jiffies : 13586
  .next_jiffies : 13590
  .idle_expires : 354360000000 nsecs
jiffies: 13587

cpu: 1
 clock 0:
  .index: 0
  .resolution: 1 nsecs
  .get_time: ktime_get_real
  .offset: 1220656718200590072 nsecs
active timers:
 clock 1:
  .index: 1
  .resolution: 1 nsecs
  .get_time: ktime_get
  .offset: 0 nsecs
active timers:
 #0: <f4d73e54>, tick_sched_timer, S:01, tick_nohz_restart_sched_tick, swapper/0
 # expires at 354353000000 nsecs [in 1686152 nsecs]
 #1: <f4d73e54>, hrtick, S:01, hrtick_start_fair, bash/6855
 # expires at 354366700722 nsecs [in 15386874 nsecs]
 #2: <f4d73e54>, it_real_fn, S:01, do_setitimer, syslogd/4814
 # expires at 379234767248 nsecs [in 24883453400 nsecs]
 #3: <f4d73e54>, hrtimer_wakeup, S:01, do_nanosleep, cron/6108
 # expires at 382800506048 nsecs [in 28449192200 nsecs]
  .expires_next : 354353000000 nsecs
  .hres_active : 1
  .nr_events : 14919
  .nohz_mode : 2
  .idle_tick : 354269000000 nsecs
  .tick_stopped : 0
  .idle_jiffies : 13568
  .idle_calls : 47766
  .idle_sleeps : 20018
  .idle_entrytime : 354335492448 nsecs
  .idle_waketime : 354343885768 nsecs
  .idle_exittime : 354343922888 nsecs
  .idle_sleeptime : 321434519696 nsecs
  .last_jiffies : 13583
  .next_jiffies : 13596
  .idle_expires : 354384000000 nsecs
jiffies: 13587

Tick Device: mode: 1
Clock Event Device: hpet
 max_delta_ns: 2147483647
 min_delta_ns: 5000
 mult: 107374182
 shift: 32
 mode: 3
 next_event: 9223372036854775807 nsecs
 set_next_event: hpet_legacy_next_event
 set_mode: hpet_legacy_set_mode
 event_handler: tick_handle_oneshot_broadcast
tick_broadcast_mask: 00000003
tick_broadcast_oneshot_mask: 00000000

Tick Device: mode: 1
Clock Event Device: lapic
 max_delta_ns: 671076287
 min_delta_ns: 1199
 mult: 53688073
 shift: 32
 mode: 3
 next_event: 354352000000 nsecs
 set_next_event: lapic_next_event
 set_mode: lapic_timer_setup
 event_handler: hrtimer_interrupt

Tick Device: mode: 1
Clock Event Device: lapic
 max_delta_ns: 671076287
 min_delta_ns: 119...

[Stefan Bader (smb)]

I am still looking through the code to check whether there is something out of bounds. Somehow the next_event value of the hpet seems a bit high. And also the masks need some research.
Meanwhile, there have been more changes upstream to the related code. I gathered together everything that seemed to be related to the problem area and uploaded a new kernel (smb5).

[p.tar (dap-chnual)]

Boot is fine with /etc/network/interfaces like:
auto lo
iface lo inet loopback
auto eth0

But the shutdown still hangs for some (long) time.

acpi=noirq makes no difference

[Julian Alarcon (julian-alarcon)]

Duplicated bug?
https://bugs.edge.launchpad.net/ubuntu/+source/linux/+bug/272247/

[p.tar (dap-chnual)]

For the shutdown hang:
The chance it belongs to a network misconfiguration is very high, because when I switch off the router the PC is connected to, the PC almost immediately continues to shutdown.

Does this information helps someone to solve the issue?
Can I check another logfile to give some more information?

[Carl Karsten (carlfk)]

@p.tar - can you unload/deactivate/remove everything sensible related to the network, then see if the router on/off causes the same behavior.

On my box, having the laptop AC power adapter plugged in causes the "almost immediately continues to shutdown" which makes me think it is related to the signals that hardware send to say "I am plugged in."

In a few hours I will see if network cable makes a difference on my box.

[p.tar (dap-chnual)]

@Carl: I'd like to, but I won't be able to try it before Sunday or Monday. Sorry!

[p.tar (dap-chnual)]

Got a short moment:
I tried
sudo /etc/network/networking stop
which gave me
    Ignoring unknown interface eth0=eth0.

After googling for that, I changed /etc/network/interfaces (partly) from
   auto eth0
to
   auto eth0
   iface eth0 inet dhcp

With this configuration, I can (again) (re-)start the networking service.

I guess, the system will shutdown with the router still on. I'll report the behavior ASAP.

[p.tar (dap-chnual)]

Wrong turn...

The boot delay came back, so I changed /e/n/interfaces back to auto eht0.

That is, the error message on /etc/init.d/networking stop or restart is still "Ignoring unknown interface eth0=eth0"

Switching off the router circumvents the problem, but it seems, just because of a broken process: I once saw an error message like "signal xy caught", when I switched off the router and (which happens occasionally at that point) the Ubuntu "shutdown progress bar" disappears to show the text output.

Any ideas?

[Martin Behnke (martin-behnke)]

Hi!
The initial bug still occures in 2.6.27-10. :-|
The "Kernel command line: root=UUID=b2d496e6-c1e8-4757-ace0-7fc94f74d199 ro acpi=debug noapictimer" still pauses for 13seconds on my Intel Core2 T5 based laptop. You can see it on dmesg:

[ 0.529159] ACPI: Using IOAPIC for interrupt routing
[ 0.529270] ACPI: EC: non-query interrupt received, switching to interrupt mode
[ 18.532867] ACPI: EC: GPE = 0x19, I/O: command/status = 0x66, data = 0x62
[ 18.532867] ACPI: EC: driver started in interrupt mode

I've attached dmesg,lspci and dmidecode to this report.
Stefan, do you have any ideas - I can use to prevent those behaviour?

Regards,
Martin

[Stefan Bader (smb)]

@Martin: At least the log you added does not seem to be from a run with noapictimer. If you could do and post the dmesg of two boots. Both with "apic=debug debug" (acpi=debug is ignored with the default kernel). For one add "noapictimer" for the other remove it. Then post both dmesg logs (if possible not compressed, just the plain files. makes it simpler to peek on them).
As for prevention: you could also play with "nohz=off" and "highres=off" at the cost of higher power usage. This worked for some. Or try the combination from the upstream bug "noapic lapic acpi=on" to see if that helps. Of course this still is no solution but collecting hints.

[Martin Behnke (martin-behnke)]

Hi!
I attached both versions boot parameters: 1st with "apic=debug debug noapictimer" and the second with "apic=debug debug" only.

Regards,
Martin

[Martin Behnke (martin-behnke)]

...my attachment - noapictimer disabled

regards

[p.tar (dap-chnual)]

Maybe I suffered from a different bug, because the one I had encountered is gone with the latest Gnome update just a few days ago. That is, there's neither a delay on boot nor on shutdown anymore.

Thanks to the one who fixed it, who ever it was...

[vnieto (vnieto)]

still happen with: 2.6.27-11-generic #1 SMP Fri Dec 19 16:29:35 UTC 2008 x86_64 GNU/Linux

[Carl Karsten (carlfk)]

2.6.28-4-generic from jaunty - no problem.

[mohan43u (mohan43u)]

Carl,

could you please post dmesg?

[vnieto (vnieto)]

Can I install 2.6.28-4-generic on Intrepid to solve tjis problem?

[Carl Karsten (carlfk)]

Looks like I spoke too soon. There is no pause when I boot the laptop with ac plugged in - dmesg of that is dmesg30ck.txt. previously, it would pause around 2.9 seconds, and I would un/re plug the ac and it would continune to boot.

If I boot with no AC, it pauses and I need to hit a key (including shift) or plug in AC. which is similar to before, but it seems to pause less. dmesg of that is dmesg31ck.txt

[Joris_M (jorisenpetra)]

Hi,

I seem to have a similar problem, my system seems to hang at undefined moments during boot. Als I have the same hangs during normal system use, all hangs can be solved by pressing a random keyboard key I have included the dmesg log.

[Joris_M (jorisenpetra)]

Here another dmesg I waited a little longer before pushing key this time....

[Joris_M (jorisenpetra)]

Maybe the following can help, maybe not,

Some time ago I tried to boot haiku from my pc. Haiku failed during boot with a message saying it received a non maskable interrupt and that it could not continue.

Could ubuntu be fighting the same problem?

Best regards,

Joris

[vnieto (vnieto)]

Also happen with Jaunty
 2.6.28-7-generic #20-Ubuntu SMP Mon Feb 9 15:42:34 UTC 2009 x86_64 GNU/Linux

[vnieto (vnieto)]

Also Happen with jaunty
laptop 2.6.28-9-generic #31-Ubuntu SMP Wed Mar 11 15:43:49 UTC 2009 x86_64 GNU/Linux
works for both AC power but don't work for battery

[vnieto (vnieto)]

Uname -a
Linux vnieto-laptop 2.6.28-10-generic #32-Ubuntu SMP Mon Mar 16 02:48:55 UTC 2009 x86_64 GNU/Linux

still happen:
With the power cable plug boot fine, very fine, but when I start or shutdown without ac power plug (with batteries) pausing during boot or shutdown

[TJ (tj)]

It looks like there may be a fix upstream in the form of commit a682604838763981613e42015cd0e39f2989d6bb "rcu: Teach RCU that idle task is not quiscent state at boot".

[TJ (tj)]

I've successfully back-ported the upstream commit to Jaunty, built and booted it. Because my systems don't exhibit this issue I'm going to pass the hard work of building some test kernels over to Stefan tomorrow.

Once he's built and published them hopefully we can get some test reports as to whether the issue has been at least partially resolved (there may be further work required).

[Stefan Bader (smb)]

Hi, sorry. It took me a while to get to the build. I placed the kernels that have TJ's RCU backport at http://people.ubuntu.com/~smb/bug254668/ Please have a try on them and report the outcome, thanks.

[Ernesto Menéndez (pyalec)]

Latest upgrade of jaunty is still being affected by this bug.

[TJ (tj)]

Has anyone tested Stefan's kernel-builds referred to in comment #118 that have the RCU patch?

[Ernesto Menéndez (pyalec)]

I've tested the patched kernel and it doesn't solve the bug. The results are the same as with the unpatched kernel.

[Ernesto Menéndez (pyalec)]

It seems like the bug hasn't been solved in upstream yet.

I've just downloaded and compiled the git tree from Linus and the same problem, and others, happened.
Kernel version is 2.6.30 rc1.

git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git

[juandemola (juan-demola)]

With 8.10 and a AMD Atlon 64 X2 TK-55 the same thing happens. With or without AC power.

[Carl Karsten (carlfk)]

I have not tried this in months, so no clue when it got fixed, but it seems to be fixed.

[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 2.6.31-13-generic (buildd@yellow) (gcc version 4.4.1 (Ubuntu 4.4.1-4ubuntu7) ) #44-Ubuntu SMP Sat Oct 10 15:27:14 UTC 2009 (Ubuntu 2.6.31-13.44-generic)
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-2.6.31-13-generic root=UUID=40833098-c247-4544-a426-9f9423bc562c ro quiet splash

...

[ 0.281198] ACPI: EC: Enabling special treatment for EC from MSI.
[ 0.281198] ACPI: EC: Look up EC in DSDT
[ 0.283672] ACPI: BIOS _OSI(Linux) query ignored
[ 0.284515] ACPI: Interpreter enabled
[ 0.284519] ACPI: (supports S0 S3 S4 S5)
[ 0.284540] ACPI: Using IOAPIC for interrupt routing
[ 0.281198] ACPI: EC: non-query interrupt received, switching to interrupt mode
[ 0.296046] ACPI: EC: GPE = 0x10, I/O: command/status = 0x66, data = 0x62
[ 0.296050] ACPI: EC: driver started in interrupt mode
[ 0.296361] ACPI: No dock devices found.
[ 0.296597] ACPI: PCI Root Bridge [PCI0] (0000:00)
[ 0.296667] pci 0000:00:01.1: reg 10 io port: [0x3080-0x30bf]
[ 0.296667] pci 0000:00:01.1: reg 20 io port: [0x3040-0x307f]
[ 0.296667] pci 0000:00:01.1: reg 24 io port: [0x3000-0x303f]
[ 0.296667] pci 0000:00:01.1: PME# supported from D3hot D3cold
[ 0.296667] pci 0000:00:01.1: PME# disabled

[Stefan Bader (smb)]

Hi Carl, while its good that this seems fixed, I am not sure whether the part
about the EC is the cause. From the many reports it seemed to get more and more
obvious that the IRQ override for IRQ0 is the common problem. So the ACPI BIOS
defines that the timer interrupt is connected to a different pin than 0
(usually 2) but in reality this is not true. AFAIK all the problems could be
worked around by using "acpi_skip_timer_override" on the command line. So maybe
there is an auto override ignore for certain hardware, now.

[Luis Diaz (diazluis)]

i had this problem on Debian, and i fixed with a .30 kernel, look here:
http://bugzilla.kernel.org/show_bug.cgi?id=13233

thanks!

[Stefan Bader (smb)]

Thanks Carl, so in your case the timer interrupt override is unchanged (which I know has been changed to ignore for some board vendors) but still the problem goes away. So the hint from Luis seems reasonable. Interestingly I believe I had tried those on a system locally and had not seen any change.
Be it as it is, Carl, as you are the initial submitter, you think we just go the pragmatic way and close this as fixed (even without ultimate prove on what exactly fixed it)?

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Triaged a while ago but has not had any updated comments for quite some time. Please let us know if this issue remains in the current Ubuntu release, http://www.ubuntu.com/getubuntu/download . If the issue remains, click on the current status under the Status column and change the status back to "New". Thanks.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Brad Figg (brad-figg)]

This bug was filed against a series that is no longer supported and so is being marked as Won't Fix. If this issue still exists in a supported series, please file a new bug.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.