* [Bug 22302] New: 2.6.36 BUG: scheduling while atomic: rc.sysinit/1376/0x00000002
@ 2010-11-07 8:18 bugzilla-daemon
2010-11-07 8:19 ` [Bug 22302] " bugzilla-daemon
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: bugzilla-daemon @ 2010-11-07 8:18 UTC (permalink / raw)
To: linux-ext4
https://bugzilla.kernel.org/show_bug.cgi?id=22302
Summary: 2.6.36 BUG: scheduling while atomic:
rc.sysinit/1376/0x00000002
Product: File System
Version: 2.5
Kernel Version: 2.6.36
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: ext4
AssignedTo: fs_ext4@kernel-bugs.osdl.org
ReportedBy: maciej.rutecki@gmail.com
CC: rjw@sisk.pl, maciej.rutecki@gmail.com,
mathias.buren@gmail.com
Regression: Yes
Subject : 2.6.36 BUG: scheduling while atomic: rc.sysinit/1376/0x00000002
Submitter : Mathias Burén <mathias.buren@gmail.com>
Date : 2010-11-01 18:39
Message-ID : AANLkTi=kkW7ruOVp7mPsMDWRRkL2CqrOJCyZqxj_Vekm@mail.gmail.com
References : http://marc.info/?l=linux-kernel&m=128863676810517&w=2
This entry is being used for tracking a regression from 2.6.35. Please don't
close it until the problem is fixed in the mainline.
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^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug 22302] 2.6.36 BUG: scheduling while atomic: rc.sysinit/1376/0x00000002 2010-11-07 8:18 [Bug 22302] New: 2.6.36 BUG: scheduling while atomic: rc.sysinit/1376/0x00000002 bugzilla-daemon @ 2010-11-07 8:19 ` bugzilla-daemon 2010-11-07 22:25 ` bugzilla-daemon ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: bugzilla-daemon @ 2010-11-07 8:19 UTC (permalink / raw) To: linux-ext4 https://bugzilla.kernel.org/show_bug.cgi?id=22302 Maciej Rutecki <maciej.rutecki@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Blocks| |16444 -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 22302] 2.6.36 BUG: scheduling while atomic: rc.sysinit/1376/0x00000002 2010-11-07 8:18 [Bug 22302] New: 2.6.36 BUG: scheduling while atomic: rc.sysinit/1376/0x00000002 bugzilla-daemon 2010-11-07 8:19 ` [Bug 22302] " bugzilla-daemon @ 2010-11-07 22:25 ` bugzilla-daemon 2010-11-16 18:26 ` bugzilla-daemon 2010-11-16 18:27 ` bugzilla-daemon 3 siblings, 0 replies; 5+ messages in thread From: bugzilla-daemon @ 2010-11-07 22:25 UTC (permalink / raw) To: linux-ext4 https://bugzilla.kernel.org/show_bug.cgi?id=22302 Theodore Tso <tytso@mit.edu> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tytso@mit.edu --- Comment #1 from Theodore Tso <tytso@mit.edu> 2010-11-07 22:25:01 --- This is caused by an interaction in two changes that happened in parallel in 2.6.36: commit id's dd3932eddf4 (block: remove BLKDEV_IFL_WAIT) and commit 5c521830cf3 (ext4: Support discard requests when running in no-journal mode). The problem is that ext4_free_blocks() can be called by functions which are holding spinlocks, so it can't sleep --- and sb_issue_discard() now always waits for the discard to be completed. It doesn't support an asynchronous mode at all. The fix for the short-term is to remove the call to ext4_issue_discard() in ext4_free_blocks(). This effectively removes the functionality of commit 5c521830cf3. The long-term fix would be to implement a version of sb_issue_discard() which supports asynchronous mode, with an optional callback. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 22302] 2.6.36 BUG: scheduling while atomic: rc.sysinit/1376/0x00000002 2010-11-07 8:18 [Bug 22302] New: 2.6.36 BUG: scheduling while atomic: rc.sysinit/1376/0x00000002 bugzilla-daemon 2010-11-07 8:19 ` [Bug 22302] " bugzilla-daemon 2010-11-07 22:25 ` bugzilla-daemon @ 2010-11-16 18:26 ` bugzilla-daemon 2010-11-16 18:27 ` bugzilla-daemon 3 siblings, 0 replies; 5+ messages in thread From: bugzilla-daemon @ 2010-11-16 18:26 UTC (permalink / raw) To: linux-ext4 https://bugzilla.kernel.org/show_bug.cgi?id=22302 Florian Mickler <florian@mickler.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |florian@mickler.org Resolution| |CODE_FIX --- Comment #2 from Florian Mickler <florian@mickler.org> 2010-11-16 18:26:42 --- Fixed by: commit b56ff9d397cecdaad6c98c9d57cc6fea475e1f50 Author: Theodore Ts'o <tytso@mit.edu> Date: Mon Nov 8 13:49:33 2010 -0500 ext4: Don't call sb_issue_discard() in ext4_free_blocks() -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 22302] 2.6.36 BUG: scheduling while atomic: rc.sysinit/1376/0x00000002 2010-11-07 8:18 [Bug 22302] New: 2.6.36 BUG: scheduling while atomic: rc.sysinit/1376/0x00000002 bugzilla-daemon ` (2 preceding siblings ...) 2010-11-16 18:26 ` bugzilla-daemon @ 2010-11-16 18:27 ` bugzilla-daemon 3 siblings, 0 replies; 5+ messages in thread From: bugzilla-daemon @ 2010-11-16 18:27 UTC (permalink / raw) To: linux-ext4 https://bugzilla.kernel.org/show_bug.cgi?id=22302 Florian Mickler <florian@mickler.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |CLOSED -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2010-11-16 18:27 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2010-11-07 8:18 [Bug 22302] New: 2.6.36 BUG: scheduling while atomic: rc.sysinit/1376/0x00000002 bugzilla-daemon 2010-11-07 8:19 ` [Bug 22302] " bugzilla-daemon 2010-11-07 22:25 ` bugzilla-daemon 2010-11-16 18:26 ` bugzilla-daemon 2010-11-16 18:27 ` bugzilla-daemon
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