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Subjectmmotm 2009-06-30-12-50 dies during early boot
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On Tue, 30 Jun 2009 12:51:30 PDT, akpm@linux-foundation.org said:
> The mm-of-the-moment snapshot 2009-06-30-12-50 has been uploaded to
>
> http://userweb.kernel.org/~akpm/mmotm/

(Would have gotten this out the door earlier, but I got confused about what
that 'G' in the 'Tainted' meant, and put off reporting till I could reproduce
it without the NVidia driver. Turns out it was untainted except for the
warning I already reported...)

Dies fairly early during boot, somewhere in the first few lines of rc.sysinit.

It *looks* like it dies in this call:

wake_up_interruptible(&current->real_parent->signal->wait_chldexit);

in selinux_bprm_committed_creds(). Not sure which part of that is the duff
pointer, though...

[ 16.829082] hub 1-2:1.0: hub_suspend
[ 16.848165] usb 1-2: unlink qh256-0001/ffff88007e053140 start 1 [1/0 us]
[ 16.867813] usb 1-2: usb auto-suspend
[ 17.827106] cat used greatest stack depth: 4280 bytes left
[ 17.846392] Oops: 0000 [#1] PREEMPT SMP
[ 17.847007] last sysfs file: /sys/devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda2/dev
[ 17.847007] CPU 0
[ 17.847007] Modules linked in:
[ 17.847007] Pid: 887, comm: mount Tainted: G W 2.6.31-rc1-mmotm0630 #1 Latitude D820
[ 17.847007] RIP: 0010:[<ffffffff81040873>] [<ffffffff81040873>] child_wait_callback+0x3d/0x5f
[ 17.847007] RSP: 0018:ffff88007f051c28 EFLAGS: 00010046
[ 17.847007] RAX: 000000000000000e RBX: 0000000000000001 RCX: 0000000000000000
[ 17.847007] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88007eb9bf20
[ 17.847007] RBP: ffff88007f051c28 R08: 0000000000000000 R09: 0000000000000001
[ 17.847007] R10: ffff88007f051c68 R11: ffff88007f051c68 R12: 0000000000000001
[ 17.847007] R13: ffff88007f9965e0 R14: 0000000000000000 R15: 0000000000000000
[ 17.847007] FS: 00007fa8f6c646f0(0000) GS:ffff880002121000(0000) knlGS:0000000000000000
[ 17.847007] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 17.847007] CR2: 0000000000000270 CR3: 000000007fb3f000 CR4: 00000000000006f0
[ 17.847007] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 17.847007] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 17.847007] Process mount (pid: 887, threadinfo ffff88007f050000, task ffff88007eb96a80)
[ 17.847007] Stack:
[ 17.847007] ffff88007f051c78 ffffffff8102df4a 0000000000000000 ffff88007f9965f8
[ 17.847007] <0> ffff88007f051c78 ffff88007f9965c8 0000000000000282 ffff88007e3acbc0
[ 17.847007] <0> ffff88007f051f58 00007fd172b0faf0 ffff88007f051cb8 ffffffff810305d8
[ 17.847007] Call Trace:
[ 17.847007] [<ffffffff8102df4a>] __wake_up_common+0x49/0x7f
[ 17.847007] [<ffffffff810305d8>] __wake_up+0x34/0x48
[ 17.847007] [<ffffffff81176a19>] selinux_bprm_committed_creds+0x11d/0x132
[ 17.847007] [<ffffffff8105be4d>] ? commit_creds+0x1d5/0x1df
[ 17.847007] [<ffffffff8116dc46>] security_bprm_committed_creds+0x11/0x13
[ 17.847007] [<ffffffff810d5420>] install_exec_creds+0x30/0x35
[ 17.847007] [<ffffffff81110de5>] load_elf_binary+0x10d1/0x1990
[ 17.847007] [<ffffffff814a8bc0>] ? sub_preempt_count+0x35/0x48
[ 17.847007] [<ffffffff810d5101>] search_binary_handler+0xbd/0x2cc
[ 17.847007] [<ffffffff8110fd14>] ? load_elf_binary+0x0/0x1990
[ 17.847007] [<ffffffff810d69e8>] do_execve+0x26e/0x3c2
[ 17.847007] [<ffffffff81009b15>] sys_execve+0x5b/0x78
[ 17.847007] [<ffffffff8100b7ca>] stub_execve+0x6a/0xc0
[ 17.847007] Code: 81 00 03 00 00 eb 14 89 c0 48 6b c0 18 48 03 81 c0 02 00 00 48 8b 80 00 03 00 00 48 3b 47 e0 75 21 8b 47 dc 41 89 c0 41 c1 e8 1f <83> b9 70 02 00 00 11 41 0f 95 c1 45 38 c1 74 0b a9 00 00 00 40
[ 17.847007] RIP [<ffffffff81040873>] child_wait_callback+0x3d/0x5f
[ 17.847007] RSP <ffff88007f051c28>
[ 17.847007] CR2: 0000000000000270
[ 17.847007] ---[ end trace a7919e7f17c0a727 ]---
[ 17.847007] note: mount[887] exited with preempt_count 2
[ 27.655913] usb 1-8.3: khubd timed out on ep0in len=0/64
[ 27.655958] BUG: scheduling while atomic: mount/887/0x10000003
[ 27.655960] INFO: lockdep is turned off.
[ 27.655962] Modules linked in:
[ 27.655965] Pid: 887, comm: mount Tainted: G D W 2.6.31-rc1-mmotm0630 #1
[ 27.655967] Call Trace:
[ 27.655973] [<ffffffff81065361>] ? __debug_show_held_locks+0x1b/0x24
[ 27.655978] [<ffffffff81034afb>] __schedule_bug+0x6d/0x72
[ 27.655982] [<ffffffff814a339e>] schedule+0xf0/0x934
[ 27.655987] [<ffffffff810e73ef>] ? mntput_no_expire+0x24/0x145
[ 27.655991] [<ffffffff810cb61d>] ? __cache_free+0x45/0xf1
[ 27.655996] [<ffffffff81035abf>] __cond_resched+0x24/0x39
[ 27.655999] [<ffffffff814a3dad>] _cond_resched+0x2d/0x38
[ 27.656017] [<ffffffff81040ca0>] put_files_struct+0x6c/0xbe
[ 27.656020] [<ffffffff81040d38>] exit_files+0x46/0x4f
[ 27.656024] [<ffffffff81042a58>] do_exit+0x3a6/0x97d
[ 27.656028] [<ffffffff814a732e>] oops_end+0x89/0x8e
[ 27.656032] [<ffffffff81025a6c>] no_context+0x1f1/0x200
[ 27.656036] [<ffffffff81025c21>] __bad_area_nosemaphore+0x1a6/0x1ef
[ 27.656040] [<ffffffff81065b01>] ? trace_hardirqs_on_caller+0x1f/0x145
[ 27.656044] [<ffffffff81064e9f>] ? trace_hardirqs_off_caller+0x1f/0xa2
[ 27.656047] [<ffffffff81064f2f>] ? trace_hardirqs_off+0xd/0xf
[ 27.656051] [<ffffffff81064e9f>] ? trace_hardirqs_off_caller+0x1f/0xa2
[ 27.656055] [<ffffffff81034117>] ? get_parent_ip+0x11/0x41
[ 27.656058] [<ffffffff81025c78>] bad_area_nosemaphore+0xe/0x10
[ 27.656062] [<ffffffff814a8913>] do_page_fault+0x204/0x47c
[ 27.656066] [<ffffffff814a5739>] ? trace_hardirqs_off_thunk+0x3a/0x3c
[ 27.656070] [<ffffffff814a674f>] page_fault+0x1f/0x30
[ 27.656074] [<ffffffff81040873>] ? child_wait_callback+0x3d/0x5f
[ 27.656079] [<ffffffff811bca7e>] ? _raw_spin_lock+0xe3/0x196
[ 27.656083] [<ffffffff8102df4a>] __wake_up_common+0x49/0x7f
[ 27.656087] [<ffffffff810305d8>] __wake_up+0x34/0x48
[ 27.656091] [<ffffffff81176a19>] selinux_bprm_committed_creds+0x11d/0x132
[ 27.656095] [<ffffffff8105be4d>] ? commit_creds+0x1d5/0x1df
[ 27.656098] [<ffffffff8116dc46>] security_bprm_committed_creds+0x11/0x13
[ 27.656102] [<ffffffff810d5420>] install_exec_creds+0x30/0x35
[ 27.656106] [<ffffffff81110de5>] load_elf_binary+0x10d1/0x1990
[ 27.656111] [<ffffffff814a8bc0>] ? sub_preempt_count+0x35/0x48
[ 27.656114] [<ffffffff810d5101>] search_binary_handler+0xbd/0x2cc
[ 27.656118] [<ffffffff8110fd14>] ? load_elf_binary+0x0/0x1990
[ 27.656122] [<ffffffff810d69e8>] do_execve+0x26e/0x3c2
[ 27.656126] [<ffffffff81009b15>] sys_execve+0x5b/0x78
[ 27.656130] [<ffffffff8100b7ca>] stub_execve+0x6a/0xc0
[ 27.656157] mount used greatest stack depth: 3920 bytes left

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