Woke up and the system was unresponsive - couldn't cleanly shut down, couldn't log
in from anywhere, had to hit the power button.
This was a nasty one - when I tried to reboot into my stable 2.6.8.1 kernel, it
panicked due to an unknown ext3 option - I had to boot back into 2.6.10-rc2, fsck
the filesystems, and boot back into 2.6.8.1. Checking syslog, I found:
Nov 19 04:09:03 david kernel: Unable to handle kernel paging request at virtual
address 30006fbc
Nov 19 04:09:03 david kernel: printing eip:
Nov 19 04:09:03 david kernel: c01e7abc
Nov 19 04:09:03 david kernel: *pde = 00000000
Nov 19 04:09:03 david kernel: Oops: 0002 [#1]
Nov 19 04:09:03 david kernel: PREEMPT
Nov 19 04:09:03 david kernel: Modules linked in: floppy snd_mixer_oss snd_emu10k1
snd_rawmidi snd_seq_device snd_ac97_codec snd_pcm snd_timer snd_page_alloc
snd_util_mem snd_hwdep snd soundcore tun parport_pc lp parport autofs4 nfs lockd
sunrpc e100 mii md5 ipv6 microcode sd_mod joydev uhci_hcd usb_storage scsi_mod
ohci_hcd ehci_hcd button battery ac
Nov 19 04:09:03 david kernel: CPU: 0
Nov 19 04:09:03 david kernel: EIP: 0060:[<c01e7abc>] Not tainted VLI
Nov 19 04:09:03 david kernel: EFLAGS: 00010206 (2.6.10-rc2david-1)
Nov 19 04:09:03 david kernel: EIP is at __journal_clean_checkpoint_list+0x56/0x96
Nov 19 04:09:03 david kernel: eax: 00000000 ebx: cf460b9c ecx: f72ada00 edx:
30006fbc
Nov 19 04:09:03 david kernel: esi: f7296000 edi: cf460a7c ebp: f7296d7c esp:
f7296d5c
Nov 19 04:09:03 david kernel: ds: 007b es: 007b ss: 0068
Nov 19 04:09:03 david kernel: Process kjournald (pid: 1459, threadinfo=f7296000
task=f7f33550)
Nov 19 04:09:03 david kernel: Stack: d7c84d1c 00000000 dc744f00 dc744d00 dc744d00
f7296000 00000000 00000001
Nov 19 04:09:03 david kernel: f7296f30 c01e3ab9 00000000 00000000 00000000
00000000 00000000 00000000
Nov 19 04:09:03 david kernel: 00000000 00000000 f72adb74 f72adb74 f72adb74
f7296000 00000000 00000000
Nov 19 04:09:03 david kernel: Call Trace:
Nov 19 04:09:03 david kernel: [<c01048f9>] show_stack+0x7a/0x90
Nov 19 04:09:03 david kernel: [<c0104a77>] show_registers+0x14d/0x1b1
Nov 19 04:09:03 david kernel: [<c0104cbb>] die+0x151/0x2bd
Nov 19 04:09:03 david kernel: [<c011a423>] do_page_fault+0x26b/0x643
Nov 19 04:09:03 david kernel: [<c0104453>] error_code+0x2b/0x30
Nov 19 04:09:03 david kernel: [<c01e3ab9>] journal_commit_transaction+0x59b/0x296a
Nov 19 04:09:03 david kernel: [<c01e905c>] kjournald+0x19a/0x700
Nov 19 04:09:03 david kernel: [<c0101285>] kernel_thread_helper+0x5/0xb
Nov 19 04:09:03 david kernel: Code: f0 8b 40 58 89 45 e8 8b 45 f0 8b 58 28 85 db
74 34 8b 43 2c 89 df be 00 f0 ff ff 89 45 e0 21 e6 89 fb 8b 7f 28 8b 13 83 46 14
01 <0f> ba 2a 13 19 c0 85 c0 74 2a 8b 46 08 83 6e 14 01 a8 08 75 18
Nov 19 04:09:03 david kernel: <3>Debug: sleeping function called from invalid
context at include/linux/rwsem.h:43
Nov 19 04:09:03 david kernel: in_atomic():1, irqs_disabled():0
Nov 19 04:09:03 david kernel: [<c0104926>] dump_stack+0x17/0x1b
Nov 19 04:09:03 david kernel: [<c011e665>] __might_sleep+0xb6/0xd7
Nov 19 04:09:03 david kernel: [<c0123837>] profile_task_exit+0x23/0x56
Nov 19 04:09:03 david kernel: [<c0125ef5>] do_exit+0x1c/0xa0b
Nov 19 04:09:03 david kernel: [<c0104e27>] do_divide_error+0x0/0x102
Nov 19 04:09:03 david kernel: [<c011a423>] do_page_fault+0x26b/0x643
Nov 19 04:09:03 david kernel: [<c0104453>] error_code+0x2b/0x30
Nov 19 04:09:03 david kernel: [<c01e3ab9>] journal_commit_transaction+0x59b/0x296a
Nov 19 04:09:03 david kernel: [<c01e905c>] kjournald+0x19a/0x700
Nov 19 04:09:03 david kernel: [<c0101285>] kernel_thread_helper+0x5/0xb
Nov 19 04:09:03 david kernel: note: kjournald[1459] exited with preempt_count 3
Nov 19 04:09:03 david kernel: fs/jbd/transaction.c:115:
spin_lock(fs/jbd/journal.c:f72ada14) already locked by fs/jbd/commit.c/147