[Bug 364599] Re: linux-rt: boot hangs

[Laurent Bonnaud]

I updated the description of this bug because the kernel WARNING is
tracked in another bug report (see bug #363478) and it seems that my
problem is a different one.


** Description changed:

  When I try to boot this kernel on my ACER Travelmate 8200 laptop, it
  hangs in the middle of the boot process.
- 
- Before the hang, this WARNING occurs, which may be related or not to the
- hang:
- 
- Apr 21 10:58:41 vougeot kernel: [    3.326554] ------------[ cut here ]------------
- Apr 21 10:58:41 vougeot kernel: [    3.326558] WARNING: at /build/buildd/linux-rt-2.6.28/arch/x86/kernel/signal_32.c:60
- 8 do_signal+0x171/0x180()
- Apr 21 10:58:41 vougeot kernel: [    3.326561] Modules linked in: fbcon tileblit font bitblit softcursor
- Apr 21 10:58:41 vougeot kernel: [    3.326570] Pid: 213, comm: udevd Not tainted 2.6.28-3-rt #12-Ubuntu
- Apr 21 10:58:41 vougeot kernel: [    3.326572] Call Trace:
- Apr 21 10:58:41 vougeot kernel: [    3.326579]  [<c050f991>] ? printk+0x18/0x1f
- Apr 21 10:58:41 vougeot kernel: [    3.326585]  [<c013be54>] warn_on_slowpath+0x54/0x80
- Apr 21 10:58:41 vougeot kernel: [    3.326589]  [<c0511c18>] ? _mutex_unlock+0x8/0x10
- Apr 21 10:58:41 vougeot kernel: [    3.326593]  [<c02b0a8a>] ? apparmor_path_permission+0x5a/0x80
- Apr 21 10:58:41 vougeot kernel: [    3.326597]  [<c0511b38>] ? rt_spin_lock+0x8/0x10
- Apr 21 10:58:41 vougeot kernel: [    3.326600]  [<c0511c00>] ? _mutex_trylock+0x0/0x10
- Apr 21 10:58:41 vougeot kernel: [    3.326604]  [<c01970ea>] ? generic_file_aio_write+0x6a/0xe0
- Apr 21 10:58:41 vougeot kernel: [    3.326607]  [<c0511b38>] ? rt_spin_lock+0x8/0x10
- Apr 21 10:58:41 vougeot kernel: [    3.326612]  [<c01d9e59>] ? mnt_drop_write+0x49/0xf0
- Apr 21 10:58:41 vougeot kernel: [    3.326617]  [<c01c2ab1>] ? do_sync_write+0xd1/0x110
- Apr 21 10:58:41 vougeot kernel: [    3.326620]  [<c0103eb1>] do_signal+0x171/0x180
- Apr 21 10:58:41 vougeot kernel: [    3.326626]  [<c0151a40>] ? autoremove_wake_function+0x0/0x50
- Apr 21 10:58:41 vougeot kernel: [    3.326629]  [<c0511b38>] ? rt_spin_lock+0x8/0x10
- Apr 21 10:58:41 vougeot kernel: [    3.326632]  [<c01c279d>] ? fsnotify_modify+0x6d/0x80
- Apr 21 10:58:41 vougeot kernel: [    3.326636]  [<c01c3156>] ? vfs_write+0xa6/0x110
- Apr 21 10:58:41 vougeot kernel: [    3.326639]  [<c01c29e0>] ? do_sync_write+0x0/0x110
- Apr 21 10:58:41 vougeot kernel: [    3.326642]  [<c01c327d>] ? sys_write+0x3d/0x70
- Apr 21 10:58:41 vougeot kernel: [    3.326645]  [<c0103efd>] do_notify_resume+0x3d/0x40
- Apr 21 10:58:41 vougeot kernel: [    3.326648]  [<c0104200>] work_notifysig+0x13/0x23
- Apr 21 10:58:41 vougeot kernel: [    3.326651] ---[ end trace cf49e534c91c48d1 ]---
- 
- I have attached a full kernel log to this report.
  
  Note that previous linux-rt kernels in previous Ubuntu releases (at
  least intrepid) would boot on the same hardware.
  
  ProblemType: Bug
  Architecture: i386
  DistroRelease: Ubuntu 9.04
  Package: linux-image-2.6.28-3-rt 2.6.28-3.12
  SourcePackage: linux-rt
  Uname: Linux 2.6.28-11-generic i686

-- 
linux-rt: boot hangs
https://bugs.launchpad.net/bugs/364599
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