[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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Ti
Guilherme Salgado, this bug was reported a while ago and there hasn't
been any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu? ISO CD images are available from
http://cdimage.ubuntu.com/releas
** Tags removed: regression-potential
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Title:
Hard freeze after upgrading to Lucid
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** Tags added: kernel-reviewed
** Tags removed: kernel-needs-review
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I would suggest trying the released 2.6.34 kernel, and also trying to
2.6.35-rc1 kernel when it comes out (probably in a week or two). Outside
of that, this looks like a bug that will need to be filed upstream at
bugzilla.kernel.org. Note that at kernel.org they have a higher level of
expectation o
It's just happened again. This time when running
2.6.34-020634rc5-generic
AFAICT (by looking at the logs), this is the first time it happened when
running this kernel.
May 26 12:44:46 gorducho kernel: [190200.831234] i915 D
880001e15740 0 712 2 0x
May 26 12:44:46
** Tags added: kernel-acpi
** Tags added: kernel-needs-review
** Tags removed: kernel-acpi kernel-needs-review
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@Guiherme:
I just want you to know that I probably won't be able to get back to
this bug for a bit due to the ubuntu developer summit next week.
However, this is still on my list of things to look at.
I hope the mainline kernel can tide you over for the time being.
Thanks
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I've been running 2.6.34-020634rc5-generic since the 29th and it didn't
crash so far.
As an experiment, this morning I rebooted using 2.6.32-21-generic and at
the end of the day it crashed.
I think it's fair to assume 2.6.34-020634rc5 doesn't have this issue,
but I'll keep running it as anything
@Guilherme:
I meant the 2.6.34-rc5-lucid or later image. Sorry for the confusion!
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Chase, are the packages from kernel.ubuntu.com/~kernel-
ppa/mainline/daily/2010-04-28-lucid/ the ones I should install or do you
mean something else by latest mainline?
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@Guilherme:
This appears to be the stack trace where the issue arises:
1) | drm_ioctl() {
1) 0.421 us|drm_ut_debug_printk();
1) |i915_gem_set_domain_ioctl() {
1) 0.624 us| drm_gem_object_lookup();
1) 0.504 us| intel_mark_busy()
Uggg, launchpad reformats that to be really ugly. You find this in the
ftrace.bz2 file by searching for the last instance of i915_user_irq_get.
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After waiting almost a week for the crash to happen on the -21 kernel, I
remembered the last time it happened was after a reboot when the -21
kernel had just been installed, so I've 'apt-get --reinstall'ed that
kernel, restarted and then didn't have to wait more than 10 hours for
the crash to happe
One useful thing to try would be to trace the graphics driver stack to
determine what is going on. Please run the following on the latest
Ubuntu kernel:
$ sudo sh -c "echo ':mod:i915 :mod:drm :mod:drm_kms_helper
check_hung_uninterruptible:traceoff:' >
/sys/kernel/debug/tracing/set_ftrace_filter"
The debug kernel may slow things down just enough so that the issue
doesn't occur. That makes this a very difficult bug to figure out. I'll
need to think some more on how to debug this.
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After restarting with the latest kernel (-21), it crashed again but I
still haven't managed to crash it with the debug kernel. I should
probably use apt to pin my kernel to this debug version so that it never
crashes again. ;)
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** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
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As one should expect, now that I'm running the debug kernel, the
laptop's been running happily for more than 20h without a single crash.
I'll leave it running until it crashes again, though.
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@Guilherme:
I've uploaded a test kernel to http://people.canonical.com/545039/.
Please install it and test it out. When the bug occurs, hopefully we
will see some output in dmesg that will help us diagnose the mutex
issue. It isn't guaranteed that any useful data will be output though,
so this is
** Attachment added: "trace.bz2"
http://launchpadlibrarian.net/43167185/trace.bz2
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Output of dmesg while system was frozen. I also saw that the X process
was doing uninterruptible IO at that time.
** Attachment added: "dmesg"
http://launchpadlibrarian.net/43165675/dmesg
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Apr 4 19:35:48 gorducho rsyslogd: [origin software="rsyslogd"
swVersion="4.2.0" x-pid="908" x-info="http://www.rsyslog.com";] rsyslogd was
HUPed, type 'lightweight'.
Apr 4 20:24:51 gorducho kernel: [ 4320.603907] i915 D
0 749 2 0x
Apr 4 20:24:51 go
Today it froze again, and when I logged in from another box to check the
logs, that traceback was not there. It was only after I hit Ctrl+Alt+F1
(on the frozen box, obviously) that I saw the traceback in the logs.
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You
I've been having a similar problem for quite some time.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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** Attachment added: "AlsaDevices.txt"
http://launchpadlibrarian.net/41713244/AlsaDevices.txt
** Attachment added: "AplayDevices.txt"
http://launchpadlibrarian.net/41713245/AplayDevices.txt
** Attachment added: "BootDmesg.txt"
http://launchpadlibrarian.net/41713246/BootDmesg.txt
** Att
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