Public bug reported:
Since doing an update this morning (around 2014-05-11 13:00:00 Pacific
Time), all attempts to suspend this PC fail, whereas prior it has never
been an issue.
dmesg reports:
[ 193.434832] PM: Syncing filesystems ... done.
[ 193.439449] PM: Preparing system for mem sleep
[ 193.439495] Freezing user space processes ...
[ 213.440053] Freezing of tasks failed after 20.00 seconds (1 tasks refusing
to freeze, wq_busy=0):
[ 213.440131] grep D ffff88020c9c7620 0 1810 1808 0x00800004
[ 213.440234] ffff88020ffe59f8 0000000000000046 000000000000000b
ffff88021fd937c0
[ 213.440397] ffff88020ffe5fd8 ffff88020ffe5fd8 ffff88020ffe5fd8
00000000000137c0
[ 213.440560] ffff8802121a1700 ffff88020e15dc00 ffff88020ffe5a18
ffff88020e15dc00
[ 213.440722] Call Trace:
[ 213.440761] [<ffffffff8165fe2f>] schedule+0x3f/0x60
[ 213.440802] [<ffffffff8106cf77>] do_exit+0x427/0x450
[ 213.440842] [<ffffffff81662ee0>] oops_end+0xb0/0xf0
[ 213.440882] [<ffffffff810178b8>] die+0x58/0x90
[ 213.440921] [<ffffffff81662854>] do_trap+0xc4/0x170
[ 213.440961] [<ffffffff81134f01>] ? kzfree+0x31/0x40
[ 213.441000] [<ffffffff81134f01>] ? kzfree+0x31/0x40
[ 213.441040] [<ffffffff81014f55>] do_invalid_op+0x95/0xb0
[ 213.441080] [<ffffffff81164e55>] ? kfree+0x135/0x140
[ 213.441120] [<ffffffff8166c36b>] invalid_op+0x1b/0x20
[ 213.441160] [<ffffffff81134f01>] ? kzfree+0x31/0x40
[ 213.441199] [<ffffffff81164e55>] ? kfree+0x135/0x140
[ 213.441250] [<ffffffff81164d5b>] ? kfree+0x3b/0x140
[ 213.441300] [<ffffffff81134f01>] kzfree+0x31/0x40
[ 213.441351] [<ffffffff812dadca>] apparmor_file_free_security+0x1a/0x20
[ 213.441405] [<ffffffff812a1d86>] security_file_free+0x16/0x20
[ 213.441456] [<ffffffff8117c1c6>] __fput+0xc6/0x210
[ 213.441506] [<ffffffff8117c335>] fput+0x25/0x30
[ 213.441556] [<ffffffff81144095>] remove_vma+0x45/0x90
[ 213.441607] [<ffffffff81146bd8>] exit_mmap+0xe8/0x140
[ 213.441657] [<ffffffff81066012>] mmput.part.16+0x42/0x130
[ 213.441708] [<ffffffff81066129>] mmput+0x29/0x30
[ 213.441757] [<ffffffff8106cb33>] exit_mm+0x113/0x130
[ 213.441808] [<ffffffff810e5cb5>] ? taskstats_exit+0x45/0x240
[ 213.441860] [<ffffffff81662025>] ? _raw_spin_lock_irq+0x15/0x20
[ 213.441911] [<ffffffff8106ccbe>] do_exit+0x16e/0x450
[ 213.441962] [<ffffffff8106d144>] do_group_exit+0x44/0xa0
[ 213.442013] [<ffffffff8106d1b7>] sys_exit_group+0x17/0x20
[ 213.442063] [<ffffffff8166a382>] system_call_fastpath+0x16/0x1b
[ 213.442149]
[ 213.442193] Restarting tasks ... done.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: grep 2.10-1
ProcVersionSignature: Ubuntu 3.2.0-61.93-generic 3.2.55
Uname: Linux 3.2.0-61-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
Date: Sun May 11 13:22:42 2014
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64
(20120425)
MarkForUpload: True
ProcEnviron:
LANGUAGE=en_CA:en
TERM=xterm
PATH=(custom, no user)
LANG=en_CA.UTF-8
SHELL=/bin/bash
SourcePackage: grep
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: grep (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise
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https://bugs.launchpad.net/bugs/1318410
Title:
grep crashes during suspend
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