thinkpad t61p / nvidia 185 / 64 bits
even after sysrq-I (kill-all-tasks), the killall5 process from
rc6.d/sendsigs stay alive in the tasks list. Stack trace varies, here is
a sample one;
Aug 26 22:57:22 gug-laptop kernel: [ 237.267529] killall5 R running task
0 3759 3737 0x00000008
Aug 26 22:57:22 gug-laptop kernel: [ 237.267532] ffff880134d116b0
0000000000000000 00007f8f263fa000 ffff880134877160
Aug 26 22:57:22 gug-laptop kernel: [ 237.267535] ffff880133d409c0
ffffffffffffffce ffffffff810f392b 0000000000000010
Aug 26 22:57:22 gug-laptop kernel: [ 237.267538] 0000000000000286
ffff8801364b3c78 0000000000000018 ffffffff81522969
Aug 26 22:57:22 gug-laptop kernel: [ 237.267541] Call Trace:
Aug 26 22:57:22 gug-laptop kernel: [ 237.267544] [<ffffffff810f392b>] ?
handle_mm_fault+0x2b/0x3c0
Aug 26 22:57:22 gug-laptop kernel: [ 237.267546] [<ffffffff81522969>] ?
_spin_lock+0x9/0x10
Aug 26 22:57:22 gug-laptop kernel: [ 237.267549] [<ffffffff810efd66>] ?
follow_page+0x2f6/0x330
Aug 26 22:57:22 gug-laptop kernel: [ 237.267552] [<ffffffff810f3df9>] ?
__get_user_pages+0x139/0x480
Aug 26 22:57:22 gug-laptop kernel: [ 237.267555] [<ffffffff810f4e8e>] ?
__mlock_vma_pages_range+0x8e/0x1c0
Aug 26 22:57:22 gug-laptop kernel: [ 237.267558] [<ffffffff810f5643>] ?
munlock_vma_pages_range+0x13/0x20
Aug 26 22:57:22 gug-laptop kernel: [ 237.267560] [<ffffffff810f6e9c>] ?
exit_mmap+0x13c/0x1c0
Aug 26 22:57:22 gug-laptop kernel: [ 237.267562] [<ffffffff81057738>] ?
mmput+0x38/0xd0
Aug 26 22:57:22 gug-laptop kernel: [ 237.267565] [<ffffffff8105c70e>] ?
exit_mm+0x10e/0x150
Aug 26 22:57:22 gug-laptop kernel: [ 237.267567] [<ffffffff815228b0>] ?
_spin_lock_irq+0x10/0x20
Aug 26 22:57:22 gug-laptop kernel: [ 237.267569] [<ffffffff8105c9b5>] ?
do_exit+0x125/0x370
Aug 26 22:57:22 gug-laptop kernel: [ 237.267572] [<ffffffff8105cc49>] ?
do_group_exit+0x49/0xc0
Aug 26 22:57:22 gug-laptop kernel: [ 237.267574] [<ffffffff8105ccd2>] ?
sys_exit_group+0x12/0x20
Aug 26 22:57:22 gug-laptop kernel: [ 237.267577] [<ffffffff81011fc2>] ?
system_call_fastpath+0x16/0x1b
--
[Karmic] Hangs during shutdown with kernel 2.6.31rc7
https://bugs.launchpad.net/bugs/418509
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