broken ACPI and fake disk errors

[Fabio Marconi]

Boot only with acpi=off.
When session is started it appear slow.
In the same hardware, 12.10 boots regularry without disk errors logged.
ProblemType: BugDistroRelease: Ubuntu 13.04
Package: linux-image-3.7.0-2-generic 3.7.0-2.8
ProcVersionSignature: Ubuntu 3.7.0-2.8-generic 3.7.0-rc5
Uname: Linux 3.7.0-2-generic x86_64
ApportVersion: 2.6.2-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ubuntu 4248 F.... pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
CasperVersion: 1.328
CurrentDmesg: [ 100.597395] init: plymouth-upstart-bridge main process (2347) killed by TERM signal
Date: Sun Nov 18 11:30:54 2012
IwConfig:
 eth0 no wireless extensions.

 lo no wireless extensions.LiveMediaBuild: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20121118)
Lsusb:
 Bus 001 Device 003: ID 0718:0628 Imation Corp.
 Bus 002 Device 002: ID 046d:c050 Logitech, Inc. RX 250 Optical Mouse
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB:

ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz debug= acpi=off
RelatedPackageVersions:
 linux-restricted-modules-3.7.0-2-generic N/A
 linux-backports-modules-3.7.0-2-generic N/A
 linux-firmware 1.97
RfKill:

SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/03/2005
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.50
dmi.board.asset.tag: 00000000
dmi.board.name: K8NF4G-SATA2
dmi.board.version: 1.00
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.50:bd11/03/2005:svn:pnK8NF4G-SATA2:pvr1.00:rvn:rnK8NF4G-SATA2:rvr1.00:
dmi.product.name: K8NF4G-SATA2
dmi.product.version: 1.00

[Brad Figg (brad-figg)]

This change was made by a bot.

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1080320

[Joseph Salisbury (jsalisbury)]

Can you test the latest mainline kernel(3.5-rc6)[0] to see if it also exhibits this bug? If it does, I'd like to perform a bisect to identify the commit that introduced this regression.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc6-raring/

[Fabio Marconi (fabiomarconi)]

Hallo Joseph.

The first version introducing the bug is:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6-quantal/

The last working is:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7-quantal/

Thanks
Fabio

[Fabio Marconi (fabiomarconi)]

kern.log of 3.5-7

[Joseph Salisbury (jsalisbury)]

Before I start the bisect can you test the latest mainline kernel to confirm the bug is not already fixed:
v3.7-rc7: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc7-raring/

Also, can test v3.5 final since 3.5.7 isn't linear to v3.6 final:
v3.5 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5-quantal/

If v3.5 final does not have the bug, I'll start a bisect between v3.5 and v3.6.

Thanks in advance!

[Joseph Salisbury (jsalisbury)]

Similar messages reported on LKML:
https://lkml.org/lkml/2012/10/16/291

However, it seems like the LKML thread states this bug does not happen in v3.6 and the commit in question was introduced in v3.7-rc1:

git describe --contains 65fe1f0f66a57380229a4ced844188103135f37b
v3.7-rc1~138^2~9

[Joseph Salisbury (jsalisbury)]

Assuming v3.5 does not have the bug and v3.7-rc7 still has the bug, I started a bisect between v3.5 and v3.6.

The first test kernel was built up to commit:
b13bc8dda81c54a66a1c84e66f60b8feba659f28

The test kernel can be downloaded from:
http://people.canonical.com/~jsalisbury/lp1080320/

Once the testing requested in comment #7 is complete, can you test the first test kernel?

Thanks

[Fabio Marconi (fabiomarconi)]

Hallo Joseph
refering to #7:

v3.7-rc7: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc7-raring/ is not working

v3.5 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5-quantal/ works

The test kernel (b13bc8dda81c54a66a1c84e66f60b8feba659f28)
http://people.canonical.com/~jsalisbury/lp1080320/ reproduce the bug

Thanks
Fabio
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[Fabio Marconi (fabiomarconi)]

I've captured two screenshot of the bug (or part of it), sorry for bad quality but is my best...
here we can see at the end an unable to handle.....
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[Fabio Marconi (fabiomarconi)]

and here part of the backtrace (pratically all)
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[Fabio Marconi (fabiomarconi)]

All the two screenshot running the test kernel
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[Joseph Salisbury (jsalisbury)]

Thanks for testing, Fabio.

I built the next test kernel which was built up to commit:
3c4cfadef6a1665d9cd02a543782d03d3e6740c6

The test kernel can be downloaded from:
http://people.canonical.com/~jsalisbury/lp1080320/

Can you test this latest kernel and report back if it has the bug?

Thanks

[Fabio Marconi (fabiomarconi)]

Halo Joseph
The new kernel works without problems, it boot without excluding acpi and in the log there aren't fake disk errors.
Installed:
 linux-doc_3.5.0-030500.201211291629_all.deb
 linux-headers-3.5.0-030500_3.5.0-030500.201211291629_all.deb
        linux-headers-3.5.0-030500-generic_3.5.0-030500.201211291629_amd64.deb
   linux-image-3.5.0-030500-generic_3.5.0-030500.201211291629_amd64.deb
 linux-image-extra-3.5.0-030500-generic_3.5.0-030500.201211291629_amd64.deb

Attached kern.log of the new kernel

Thanks
Fabio

[Fabio Marconi (fabiomarconi)]

the boots witht he new kernel are the lasts two

[Joseph Salisbury (jsalisbury)]

I built the next test kernel which was built up to commit:
9fc377799bc9bfd8d5cb35d0d1ea2e2458cbdbb3

The test kernel can be downloaded from:
http://people.canonical.com/~jsalisbury/lp1080320/

Can you test this latest kernel and report back if it has the bug?

Thanks

[Fabio Marconi (fabiomarconi)]

Hallo Joseph
The new test kernel reproduce the bug (or something very similar).
Booting normally I obtain this track (see attached screenshot)

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[Fabio Marconi (fabiomarconi)]

If instead I boot with acpi=off, the system seems to start well, then hang and show disk errors and the filesystem is mounted in readonly.
See attached screenshots
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[Fabio Marconi (fabiomarconi)]

disk errors
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[MDxm (mdxm3000)]

I can confirm this is happening for me in 12.10 3.7.0 kernel. No kernel logs since I can't get out of the fake ata NULLs but I managed to write down a few errors I noticed:
Warning at: /build/buildd/linux-3.7.0/drivers/ata/libata_core.c 2947 ata_timing_find_mode +0x66/0x80()
ata_timing_find_mode: unable to find timing for xfer_mode 0x0.
Unable to handle NULL pointer dereference at 0000000000000010

It could be unrelated to this and more about USB devices but I'm going to try the kernels from 3c4cfadef6a1665d9cd02a543782d03d3e6740c6 anyway.
However the 12.10 kernel 3.7.0 will boot with acpi=off but then my USB devices are not functional such as my mouse. When acpi is on, it will stop while adding USB devices such as my headset Roccat Kave and Ace Edge T2 and give the libata Warnings from above before the stop.

[Joseph Salisbury (jsalisbury)]

I built the next test kernel which was built up to commit:
f14121ab35912e3d2e57ac9a4ce1f9d4b7baeffb

The test kernel can be downloaded from:
http://people.canonical.com/~jsalisbury/lp1080320/

Can you test this latest kernel and report back if it has the bug?

Thanks

[Fabio Marconi (fabiomarconi)]

Hallo Joseph
This kernel works well
kern.log attached

[Lito (lito-eordes)]

Also kernel in #22 works fine for me.

No errors in kern.log (attached).

[Joseph Salisbury (jsalisbury)]

I built the next test kernel which was built up to commit:
801b03653fc04de2cc5bc83c06de504d41345b63

The test kernel can be downloaded from:
http://people.canonical.com/~jsalisbury/lp1080320/

Can you test this latest kernel and report back if it has the bug?

Thanks

[Lito (lito-eordes)]

The 801b03653fc04de2cc5bc83c06de504d41345b63 folder is empty.

The next kernel is linux-image-3.5.0-030500-generic_3.5.0-030500.201301082110_amd64.deb ?

[Lito (lito-eordes)]

Last official kernel published yesterday works fine:

Linux Lito-Ubuntu 3.8.0-0-generic #2-Ubuntu SMP Thu Jan 10 20:14:27 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

[Fabio Marconi (fabiomarconi)]

Hallo Joseph
test kernel which was built up to commit:
801b03653fc04de2cc5bc83c06de504d41345b63
works fine for me.

[Fabio Marconi (fabiomarconi)]

3.8.0-0 kernel works fine for me too in live session

[Joseph Salisbury (jsalisbury)]

I built the next test kernel which was built up to commit:
b015cb79ce84944076a8a849055f898f2a4d6be8

The test kernel can be downloaded from:
http://people.canonical.com/~jsalisbury/lp1080320/

Can you test this latest kernel and report back if it has the bug?

Thanks

[Fabio Marconi (fabiomarconi)]

Hallo Joseph
This kernel works fine.

[Joseph Salisbury (jsalisbury)]

Thanks for the update, Fabio. I'll build the next test kernel and post a link to it shortly.

[Joseph Salisbury (jsalisbury)]

I built the next test kernel which was built up to commit:
94c122ab01f84332c371dc4ae0f5b70e879173d6

The test kernel can be downloaded from:
http://people.canonical.com/~jsalisbury/lp1080320/

Can you test this latest kernel and report back if it has the bug?

Thanks

[Fabio Marconi (fabiomarconi)]

Hallo Joseph
This kernel works well.
Thanks
Fabio

[Joseph Salisbury (jsalisbury)]

Sorry, I missed your latest update. Before I continue the bisect, can you update to the latest Raring kernel and see if the bug still exits?

[Fabio Marconi (fabiomarconi)]

Hallo Joseph
As stated in #27 and #30 the bug is fixed starting from 3.8.0 kernel, latest upstream (3.9.0-rc3) don't have the bug.
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[Joseph Salisbury (jsalisbury)]

Hi Fabio,

Is it now Ok to mark this bug as Fix Released?

[Fabio Marconi (fabiomarconi)]

done
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