[Bug 402164] Re: Realtime kernel crashes in Jaunty

[Petr Kos]

Kernel version: 2.6.28-3-rt

In syslog I can see two suspect messages:

------------------------------------------- FIRST --------------------------------------------------------------------------
Aug 15 18:05:50 jardovar kernel: [    3.546261] WARNING: at /build/buildd/linux-rt-2.6.28/arch/x86/kernel/signal_32.c:608 do_signal+0x171/0x180()
Aug 15 18:05:50 jardovar kernel: [    3.546264] Modules linked in: fbcon tileblit font bitblit softcursor
Aug 15 18:05:50 jardovar kernel: [    3.546274] Pid: 202, comm: udevd Not tainted 2.6.28-3-rt #12-Ubuntu
Aug 15 18:05:50 jardovar kernel: [    3.546277] Call Trace:
Aug 15 18:05:50 jardovar kernel: [    3.546284]  [<c050f991>] ? printk+0x18/0x1f
Aug 15 18:05:50 jardovar kernel: [    3.546291]  [<c013be54>] warn_on_slowpath+0x54/0x80
Aug 15 18:05:50 jardovar kernel: [    3.546295]  [<c0511c18>] ? _mutex_unlock+0x8/0x10
Aug 15 18:05:50 jardovar kernel: [    3.546301]  [<c02b0a8a>] ? apparmor_path_permission+0x5a/0x80
Aug 15 18:05:50 jardovar kernel: [    3.546307]  [<c01970ea>] ? generic_file_aio_write+0x6a/0xe0
Aug 15 18:05:50 jardovar kernel: [    3.546310]  [<c0511b38>] ? rt_spin_lock+0x8/0x10
Aug 15 18:05:50 jardovar kernel: [    3.546316]  [<c01d9e59>] ? mnt_drop_write+0x49/0xf0
Aug 15 18:05:50 jardovar kernel: [    3.546320]  [<c01c2ab1>] ? do_sync_write+0xd1/0x110
Aug 15 18:05:50 jardovar kernel: [    3.546324]  [<c0103eb1>] do_signal+0x171/0x180
Aug 15 18:05:50 jardovar kernel: [    3.546329]  [<c0151a40>] ? autoremove_wake_function+0x0/0x50
Aug 15 18:05:50 jardovar kernel: [    3.546333]  [<c0511b38>] ? rt_spin_lock+0x8/0x10
Aug 15 18:05:50 jardovar kernel: [    3.546337]  [<c01d948d>] ? mntput_no_expire+0x1d/0x120
Aug 15 18:05:50 jardovar kernel: [    3.546342]  [<c014708e>] ? recalc_sigpending+0xe/0x40
Aug 15 18:05:50 jardovar kernel: [    3.546346]  [<c014737b>] ? sigprocmask+0x7b/0x100
Aug 15 18:05:50 jardovar kernel: [    3.546350]  [<c01d1a49>] ? sys_ppoll+0x59/0x120
Aug 15 18:05:50 jardovar kernel: [    3.546353]  [<c0103efd>] do_notify_resume+0x3d/0x40
Aug 15 18:05:50 jardovar kernel: [    3.546357]  [<c0104200>] work_notifysig+0x13/0x23
Aug 15 18:05:50 jardovar kernel: [    3.546360] ---[ end trace 4379b5800ff90e29 ]---

--------------------------------------------- SECOND------------------------------------------------------------------
Aug 15 18:31:22 jardovar kernel: [ 1552.588018] ACPI: EC: missing confirmations, switch off interrupt mode.
Aug 15 18:31:23 jardovar kernel: [ 1553.090451] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080926]
Aug 15 18:31:23 jardovar kernel: [ 1553.090469] ACPI Error (psparse-0524): Method parse/execution failed [\_SB_.PCI0.LPCB.BAT1._BST] (Node f6c54644), AE_TIME
Aug 15 18:31:23 jardovar kernel: [ 1553.092213] ACPI Exception (battery-0359): AE_TIME, Evaluating _BST [20080926]

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Realtime kernel crashes in Jaunty
https://bugs.launchpad.net/bugs/402164
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