| 2011-10-11 15:42:10 |
Herton R. Krzesinski |
description |
After installing kernel version 2.6.38-11-powerpc64-smp to my PowerMac G5 Quad I noticed that upon logging in with a CD inserted, the system would throw an error during login and while it doesn't seem like an actual panic, the system was unusable after this error.
I investigated some more and realized that it was upon attempting to mount the inserted CD (with UDF) that the error was thrown.
I can reproduce this error manually with the following recipe:
- Start the computer, boot Linux with kernel 2.6.38-11-powerpc64-smp.
- Skip graphical login and VT-switch to console one and log in.
- Attempt to mount /dev/hda (which the device assigned to the built-in DVD-RW) as UDF as in the following example:
---
$ sudo mount -t udf /dev/hda mountpoint
[ 84.594281] Unable to handle kernel paging request for data at address 0x00000320
[ 84.594303] Faulting instruction address: 0xc00000000025adbc
[ 84.594317] Oops: Kernel access of bad area, sig: 11 [#1]
[ 84.594329] SMP NR_CPUS=1024 NUMA PowerMac
[ 84.594347] last sysfs file: /sys/module/crc_itu_t/initstate
[ 84.594360] Modules linked in: udf sha256_generic aes_generic parport_pc ppdev lp parport dm_crypt binfmt_misc rfcomm sco bnep l2cap btusb bluetooth sil164 nouveau drm_kms_helper ttm drm snd_aoa_codec_onyx snd_aoa_fabric_layout snd_aoa arc4 b43 mac80211 cfg80211 snd_aoa_i2sbus snd_aoa_soundbus rtc_generic snd_powermac snd_pcm snd_page_alloc snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore raid10 raid456 async_pq async_xor xor async_raid6_recov raid6_pq async_memcpy async_tx raid1 raid0 multipath linear md_mod windfarm_cpufreq_clamp windfarm_max6690_sensor windfarm_lm75_sensor windfarm_smu_sensors windfarm_smu_controls windfarm_pm112 windfarm_pid windfarm_smu_sat windfarm_core dm_mirror dm_region_hash dm_log hid_apple sg usbhid ssb hid mmc_core firewire_ohci sd_mod tg3 crc_t10dif firewire_core uninorth_agp crc_itu_t
[ 84.594753] NIP: c00000000025adbc LR: c00000000025ada8 CTR: c00000000053d560
[ 84.594768] REGS: c0000001726675c0 TRAP: 0300 Not tainted (2.6.38-11-powerpc64-smp)
[ 84.594781] MSR: 9000000000009032 <EE,ME,IR,DR> CR: 24448442 XER: 20000000
[ 84.594819] DAR: 0000000000000320, DSISR: 40000000
[ 84.594830] TASK = c00000016b11d130[2137] 'mount' THREAD: c000000172664000 CPU: 1
[ 84.594847] GPR00: 0000000000000000 c000000172667840 c000000001160190 c0000000013f58c0
[ 84.594876] GPR04: c000000179306dd0 0000000000000000 c000000000195a08 a000000000000000
[ 84.594905] GPR08: c00000017bfd4c00 c0000000013f58c8 0000000000000000 5e86cff07c1b7400
[ 84.594934] GPR12: 0000000024444428 c00000000ff60280 0000000000000000 0000000010114ec8
[ 84.594964] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 84.594993] GPR20: 00000000100231f8 0000000000000000 0000000000000000 c00000000118e580
[ 84.595022] GPR24: c000000179306da0 ffffffffffffffe2 0000000000000000 0000000000000083
[ 84.595051] GPR28: c000000179306d80 c000000179306d80 c0000000010ae9b8 c000000172667840
[ 84.595087] NIP [c00000000025adbc] .blkdev_get+0x16c/0x2c0
[ 84.595100] LR [c00000000025ada8] .blkdev_get+0x158/0x2c0
[ 84.595111] Call Trace:
[ 84.595119] [c000000172667840] [c00000000025ada8] .blkdev_get+0x158/0x2c0 (unreliable)
[ 84.595141] [c000000172667900] [c00000000025b0d4] .blkdev_get_by_path+0x54/0xd0
[ 84.595159] [c0000001726679a0] [c000000000210970] .mount_bdev+0x80/0x2b0
[ 84.595181] [c000000172667a80] [d000000001c62a2c] .udf_mount+0x4c/0x70 [udf]
[ 84.595197] [c000000172667b20] [c00000000020ffac] .vfs_kern_mount+0xcc/0x300
[ 84.595214] [c000000172667be0] [c0000000002102b4] .do_kern_mount+0x74/0x160
[ 84.595230] [c000000172667c90] [c00000000023ba70] .do_mount+0x250/0x2d0
[ 84.595248] [c000000172667d60] [c000000000278814] .compat_sys_mount+0x174/0x2c0
[ 84.595265] [c000000172667e30] [c0000000000085b0] syscall_exit+0x0/0x40
[ 84.595280] Instruction dump:
[ 84.595290] 6b5a0001 0b1a0000 3b400000 7fa3eb78 38800000 fb430051 4be7f99d 60000000
[ 84.595327] 880d01dc 2f800000 409e00f8 7c2004ac <80160320> 39200000 91370000 7809c7e3
[ 84.600364] ---[ end trace efdcc03d2a77700c ]---
---
I have verified that this problem does not occur with kernel version 2.6.38-10-powerpc64-smp. All packages are up-to-date as of 23 Sep 2011, 10.46 CET (UTC+2).
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-11-powerpc64-smp 2.6.38-11.50
ProcVersionSignature: Ubuntu 2.6.38-11.50-powerpc64-smp 2.6.38.8
Uname: Linux 2.6.38-11-powerpc64-smp ppc64
AcpiTables:
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: SoundByLayout [SoundByLayout], device 0: Master []
Subdevices: 1/1
Subdevice #0: subdevice #0
Architecture: powerpc
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: SoundByLayout [SoundByLayout], device 0: Master []
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: erik 6591 F.... pulseaudio
CRDA: Error: [Errno 2] Filen eller katalogen finns inte
Card0.Amixer.info:
Card hw:0 'SoundByLayout'/'SoundByLayout'
Mixer name : 'SoundByLayout'
Components : ''
Controls : 18
Simple ctrls : 14
Date: Fri Sep 23 10:36:19 2011
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=1d1304f9-b33f-44cc-b7d7-b3b6a80b9797
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release powerpc (20100428)
PciMultimedia:
ProcEnviron:
LANGUAGE=sv_SE:en
PATH=(custom, user)
LANG=sv_SE.utf8
SHELL=/bin/bash
ProcKernelCmdLine: root=/dev/sda7 ro quiet splash
RelatedPackageVersions:
linux-restricted-modules-2.6.38-11-powerpc64-smp N/A
linux-backports-modules-2.6.38-11-powerpc64-smp N/A
linux-firmware 1.52.4
SourcePackage: linux
UpgradeStatus: Upgraded to natty on 2011-05-10 (135 days ago) |
SRU Justification
=================
Impact
Regression after the update to 2.6.38.8, there is a possibility of crash
in block code after the change "block: don't block events on excl write
for non-optical devices", like the one reported in bug 857170
Fix
Fixed by upstream commit 4c49ff3fe128ca68dabd07537415c419ad7f82f9,
tested by the reporter in this bug.
Testcase
Report in this bug shows one way to reproduce the issue.
-------------------------------------------------------------------------
After installing kernel version 2.6.38-11-powerpc64-smp to my PowerMac G5 Quad I noticed that upon logging in with a CD inserted, the system would throw an error during login and while it doesn't seem like an actual panic, the system was unusable after this error.
I investigated some more and realized that it was upon attempting to mount the inserted CD (with UDF) that the error was thrown.
I can reproduce this error manually with the following recipe:
- Start the computer, boot Linux with kernel 2.6.38-11-powerpc64-smp.
- Skip graphical login and VT-switch to console one and log in.
- Attempt to mount /dev/hda (which the device assigned to the built-in DVD-RW) as UDF as in the following example:
---
$ sudo mount -t udf /dev/hda mountpoint
[ 84.594281] Unable to handle kernel paging request for data at address 0x00000320
[ 84.594303] Faulting instruction address: 0xc00000000025adbc
[ 84.594317] Oops: Kernel access of bad area, sig: 11 [#1]
[ 84.594329] SMP NR_CPUS=1024 NUMA PowerMac
[ 84.594347] last sysfs file: /sys/module/crc_itu_t/initstate
[ 84.594360] Modules linked in: udf sha256_generic aes_generic parport_pc ppdev lp parport dm_crypt binfmt_misc rfcomm sco bnep l2cap btusb bluetooth sil164 nouveau drm_kms_helper ttm drm snd_aoa_codec_onyx snd_aoa_fabric_layout snd_aoa arc4 b43 mac80211 cfg80211 snd_aoa_i2sbus snd_aoa_soundbus rtc_generic snd_powermac snd_pcm snd_page_alloc snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore raid10 raid456 async_pq async_xor xor async_raid6_recov raid6_pq async_memcpy async_tx raid1 raid0 multipath linear md_mod windfarm_cpufreq_clamp windfarm_max6690_sensor windfarm_lm75_sensor windfarm_smu_sensors windfarm_smu_controls windfarm_pm112 windfarm_pid windfarm_smu_sat windfarm_core dm_mirror dm_region_hash dm_log hid_apple sg usbhid ssb hid mmc_core firewire_ohci sd_mod tg3 crc_t10dif firewire_core uninorth_agp crc_itu_t
[ 84.594753] NIP: c00000000025adbc LR: c00000000025ada8 CTR: c00000000053d560
[ 84.594768] REGS: c0000001726675c0 TRAP: 0300 Not tainted (2.6.38-11-powerpc64-smp)
[ 84.594781] MSR: 9000000000009032 <EE,ME,IR,DR> CR: 24448442 XER: 20000000
[ 84.594819] DAR: 0000000000000320, DSISR: 40000000
[ 84.594830] TASK = c00000016b11d130[2137] 'mount' THREAD: c000000172664000 CPU: 1
[ 84.594847] GPR00: 0000000000000000 c000000172667840 c000000001160190 c0000000013f58c0
[ 84.594876] GPR04: c000000179306dd0 0000000000000000 c000000000195a08 a000000000000000
[ 84.594905] GPR08: c00000017bfd4c00 c0000000013f58c8 0000000000000000 5e86cff07c1b7400
[ 84.594934] GPR12: 0000000024444428 c00000000ff60280 0000000000000000 0000000010114ec8
[ 84.594964] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 84.594993] GPR20: 00000000100231f8 0000000000000000 0000000000000000 c00000000118e580
[ 84.595022] GPR24: c000000179306da0 ffffffffffffffe2 0000000000000000 0000000000000083
[ 84.595051] GPR28: c000000179306d80 c000000179306d80 c0000000010ae9b8 c000000172667840
[ 84.595087] NIP [c00000000025adbc] .blkdev_get+0x16c/0x2c0
[ 84.595100] LR [c00000000025ada8] .blkdev_get+0x158/0x2c0
[ 84.595111] Call Trace:
[ 84.595119] [c000000172667840] [c00000000025ada8] .blkdev_get+0x158/0x2c0 (unreliable)
[ 84.595141] [c000000172667900] [c00000000025b0d4] .blkdev_get_by_path+0x54/0xd0
[ 84.595159] [c0000001726679a0] [c000000000210970] .mount_bdev+0x80/0x2b0
[ 84.595181] [c000000172667a80] [d000000001c62a2c] .udf_mount+0x4c/0x70 [udf]
[ 84.595197] [c000000172667b20] [c00000000020ffac] .vfs_kern_mount+0xcc/0x300
[ 84.595214] [c000000172667be0] [c0000000002102b4] .do_kern_mount+0x74/0x160
[ 84.595230] [c000000172667c90] [c00000000023ba70] .do_mount+0x250/0x2d0
[ 84.595248] [c000000172667d60] [c000000000278814] .compat_sys_mount+0x174/0x2c0
[ 84.595265] [c000000172667e30] [c0000000000085b0] syscall_exit+0x0/0x40
[ 84.595280] Instruction dump:
[ 84.595290] 6b5a0001 0b1a0000 3b400000 7fa3eb78 38800000 fb430051 4be7f99d 60000000
[ 84.595327] 880d01dc 2f800000 409e00f8 7c2004ac <80160320> 39200000 91370000 7809c7e3
[ 84.600364] ---[ end trace efdcc03d2a77700c ]---
---
I have verified that this problem does not occur with kernel version 2.6.38-10-powerpc64-smp. All packages are up-to-date as of 23 Sep 2011, 10.46 CET (UTC+2).
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-11-powerpc64-smp 2.6.38-11.50
ProcVersionSignature: Ubuntu 2.6.38-11.50-powerpc64-smp 2.6.38.8
Uname: Linux 2.6.38-11-powerpc64-smp ppc64
AcpiTables:
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: SoundByLayout [SoundByLayout], device 0: Master []
Subdevices: 1/1
Subdevice #0: subdevice #0
Architecture: powerpc
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: SoundByLayout [SoundByLayout], device 0: Master []
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: erik 6591 F.... pulseaudio
CRDA: Error: [Errno 2] Filen eller katalogen finns inte
Card0.Amixer.info:
Card hw:0 'SoundByLayout'/'SoundByLayout'
Mixer name : 'SoundByLayout'
Components : ''
Controls : 18
Simple ctrls : 14
Date: Fri Sep 23 10:36:19 2011
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=1d1304f9-b33f-44cc-b7d7-b3b6a80b9797
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release powerpc (20100428)
PciMultimedia:
ProcEnviron:
LANGUAGE=sv_SE:en
PATH=(custom, user)
LANG=sv_SE.utf8
SHELL=/bin/bash
ProcKernelCmdLine: root=/dev/sda7 ro quiet splash
RelatedPackageVersions:
linux-restricted-modules-2.6.38-11-powerpc64-smp N/A
linux-backports-modules-2.6.38-11-powerpc64-smp N/A
linux-firmware 1.52.4
SourcePackage: linux
UpgradeStatus: Upgraded to natty on 2011-05-10 (135 days ago) |
|
