[Bug 557302] New: AppArmor causes BUG: scheduling while atomic and exited with preempt_count messages - openSUSE Bugs - openSUSE Mailing Lists

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[Bug 557302] New: AppArmor causes BUG: scheduling while atomic and exited with preempt_count messages

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bugzilla_noreply＠novell.com

20 Nov 2009 20 Nov '09

17:10

http://bugzilla.novell.com/show_bug.cgi?id=557302 http://bugzilla.novell.com/show_bug.cgi?id=557302#c0 Summary: AppArmor causes BUG: scheduling while atomic and exited with preempt_count messages Classification: openSUSE Product: openSUSE 11.2 Version: Final Platform: All OS/Version: openSUSE 11.2 Status: NEW Severity: Major Priority: P5 - None Component: AppArmor AssignedTo: jeffm@novell.com ReportedBy: jeffm@novell.com QAContact: qa@suse.de Found By: Development Blocker: --- A missing put_cpu_var in an error path causes AppArmor to leave a process's preempt_count value incorrectly incremented. This will cause messages like BUG: scheduling while atomic: process/pid/flags . followed by a stack trace. Ultimately the following message will be seen: note: process[pid] exited with preempt_count 1 -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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20 Nov 20 Nov

17:13

New subject: [Bug 557302] AppArmor causes BUG: scheduling while atomic and exited with preempt_count messages

http://bugzilla.novell.com/show_bug.cgi?id=557302 http://bugzilla.novell.com/show_bug.cgi?id=557302#c1 --- Comment #1 from Jeff Mahoney 2009-11-20 17:13:10 UTC --- Created an attachment (id=328730) --> (http://bugzilla.novell.com/attachment.cgi?id=328730) AppArmor: Fix cap audit_caching preemption disabling The auditing code of capabilities, has a simple cache to reduce capability messages flooding the audit logs. Checking and updating the cache disables kernel preemption. One potential exit path does not properly put the per cpu var, thus not reenabling preemption. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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17:13

New subject: [Bug 557302] AppArmor causes BUG: scheduling while atomic and exited with preempt_count messages

http://bugzilla.novell.com/show_bug.cgi?id=557302 http://bugzilla.novell.com/show_bug.cgi?id=557302#c2 Jeff Mahoney changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED --- Comment #2 from Jeff Mahoney 2009-11-20 17:13:36 UTC --- This patch was included in the 11.2 repo as commit b5dda4b1. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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17:13

New subject: [Bug 557302] AppArmor causes BUG: scheduling while atomic and exited with preempt_count messages

http://bugzilla.novell.com/show_bug.cgi?id=557302 http://bugzilla.novell.com/show_bug.cgi?id=557302#c Jeff Mahoney changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P5 - None |P2 - High Severity|Major |Critical -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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17:14

New subject: [Bug 557302] AppArmor causes BUG: scheduling while atomic and exited with preempt_count messages

http://bugzilla.novell.com/show_bug.cgi?id=557302 http://bugzilla.novell.com/show_bug.cgi?id=557302#c3 Jeff Mahoney changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |estellnb@gmail.com --- Comment #3 from Jeff Mahoney 2009-11-20 17:14:57 UTC --- *** Bug 555653 has been marked as a duplicate of this bug. *** http://bugzilla.novell.com/show_bug.cgi?id=555653 -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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23 Nov 23 Nov

08:00

New subject: [Bug 557302] AppArmor causes BUG: scheduling while atomic and exited with preempt_count messages

http://bugzilla.novell.com/show_bug.cgi?id=557302 http://bugzilla.novell.com/show_bug.cgi?id=557302#c4 Uwe Gansert changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |francoisv100@gmail.com --- Comment #4 from Uwe Gansert 2009-11-23 08:00:13 UTC --- *** Bug 557532 has been marked as a duplicate of this bug. *** http://bugzilla.novell.com/show_bug.cgi?id=557532 -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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13 Dec 13 Dec

21:52

New subject: [Bug 557302] AppArmor causes BUG: scheduling while atomic and exited with preempt_count messages

http://bugzilla.novell.com/show_bug.cgi?id=557302 http://bugzilla.novell.com/show_bug.cgi?id=557302#c5 Jeff Mahoney changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mjedamzik@novell.com --- Comment #5 from Jeff Mahoney 2009-12-13 21:52:13 UTC --- *** Bug 544181 has been marked as a duplicate of this bug. *** http://bugzilla.novell.com/show_bug.cgi?id=544181 -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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14 Dec 14 Dec

08:20

New subject: [Bug 557302] AppArmor causes BUG: scheduling while atomic and exited with preempt_count messages

http://bugzilla.novell.com/show_bug.cgi?id=557302 http://bugzilla.novell.com/show_bug.cgi?id=557302#c6 Uwe Gansert changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jbottomley@novell.com --- Comment #6 from Uwe Gansert 2009-12-14 08:20:22 UTC --- *** Bug 564084 has been marked as a duplicate of this bug. *** http://bugzilla.novell.com/show_bug.cgi?id=564084 -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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26 Jan 26 Jan

13:16

New subject: [Bug 557302] AppArmor causes BUG: scheduling while atomic and exited with preempt_count messages

http://bugzilla.novell.com/show_bug.cgi?id=557302 http://bugzilla.novell.com/show_bug.cgi?id=557302#c7 Ulrich Windl changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |Ulrich.Windl@rz.uni-regensb | |urg.de --- Comment #7 from Ulrich Windl 2010-01-26 14:16:24 CET --- Unsure whether this is actually fixed: In kernel "2.6.31.8-0.1-desktop" (built after the last comment) I saw the message during boot _before_ the audit system was set up: klogd 1.4.1, log source = ksyslog started. <5>[ 0.000000] Linux version 2.6.31.8-0.1-desktop (geeko@buildhost) (gcc vers ion 4.4.1 [gcc-4_4-branch revision 150839] (SUSE Linux) ) #1 SMP PREEMPT 2009-12 -15 23:55:40 +0100 [...] <6>[ 0.006378] using C1E aware idle routine <6>[ 0.006383] Performance Counters: AMD PMU driver. <6>[ 0.006388] ... version: 0 <6>[ 0.006391] ... bit width: 48 <6>[ 0.006393] ... generic counters: 4 <6>[ 0.006396] ... value mask: 0000ffffffffffff <6>[ 0.006400] ... max period: 00007fffffffffff <6>[ 0.006403] ... fixed-purpose counters: 0 <6>[ 0.006406] ... counter mask: 000000000000000f <6>[ 0.006411] Checking 'hlt' instruction... OK. <6>[ 0.010745] Unpacking initramfs... <3>[ 0.018131] BUG: scheduling while atomic: swapper/0/0x10000002 <4>[ 0.018138] Modules linked in: <4>[ 0.018143] Pid: 0, comm: swapper Not tainted 2.6.31.8-0.1-desktop #1 <4>[ 0.018147] Call Trace: <4>[ 0.018159] [<c020845a>] try_stack_unwind+0x17a/0x1a0 <4>[ 0.018166] [<c020708c>] dump_trace+0x6c/0x130 <4>[ 0.018172] [<c0208008>] show_trace_log_lvl+0x58/0x80 <4>[ 0.018178] [<c0208056>] show_trace+0x26/0x40 <4>[ 0.018184] [<c0692e53>] dump_stack+0x79/0x91 <4>[ 0.018190] [<c023f137>] __schedule_bug+0x87/0x90 <4>[ 0.018196] [<c0693b88>] schedule+0x688/0x7a0 <4>[ 0.018201] [<c02480eb>] __cond_resched+0x2b/0x60 <4>[ 0.018206] [<c0693dfd>] _cond_resched+0x3d/0x50 <4>[ 0.018212] [<c02d3adc>] generic_perform_write+0x13c/0x1e0 <4>[ 0.018218] [<c02d3bfb>] generic_file_buffered_write+0x7b/0x150 <4>[ 0.018224] [<c02d55c3>] __generic_file_aio_write_nolock+0x213/0x530 <4>[ 0.018229] [<c02d5a15>] generic_file_aio_write+0x65/0xe0 <4>[ 0.018235] [<c031538c>] do_sync_write+0xdc/0x130 <4>[ 0.018240] [<c03156ba>] vfs_write+0xba/0x1b0 <4>[ 0.018245] [<c03160c3>] sys_write+0x53/0xa0 <4>[ 0.018250] [<c0981627>] do_copy+0xa1/0xe6 <4>[ 0.018255] [<c0980f6b>] flush_buffer+0x81/0xb8 <4>[ 0.018261] [<c09a770d>] gunzip+0x374/0x428 <4>[ 0.018266] [<c098147b>] unpack_to_rootfs+0x29f/0x3aa <4>[ 0.018272] [<c0981ef9>] populate_rootfs+0x59/0x87 <4>[ 0.018277] [<c097fcd3>] start_kernel+0x38d/0x3ae <4>[ 0.018282] [<c097f087>] i386_start_kernel+0x87/0x9f <3>[ 0.027082] BUG: scheduling while atomic: swapper/0/0x10000002 <4>[ 0.027089] Modules linked in: <4>[ 0.027093] Pid: 0, comm: swapper Not tainted 2.6.31.8-0.1-desktop #1 [...] -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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