Re: kernel BUG at fs/direct-io.c:916!

[Ralf Hildebrandt]

* Nathan Scott <nathans@xxxxxxx>:

> Hmm, there were XFS patches in -mm last week, but they also got
> merged to mainline last week, not clear whether your git kernel
> had those changes or not.  I think there's probably some direct
> I/O (generic) changes in -mm too based on list traffic from the
> last couple of weeks (I'm an -mm lamer, sorry, couldn't easily
> tell you exactly what patches those might be) - could you retry
> with todays git snapshot and see if mainline is affected?  Else
> we'll need to find and analyse any -mm fs/direct-io.c patches.

2.6.16-git12 also fails utterly:

> Mar 27 00:51:55 knarzkiste kernel: ------------[ cut here ]------------
> Mar 27 00:51:55 knarzkiste kernel: kernel BUG at fs/direct-io.c:916!
> Mar 27 00:51:55 knarzkiste kernel: invalid opcode: 0000 [#1]
> Mar 27 00:51:55 knarzkiste kernel: PREEMPT
> Mar 27 00:51:56 knarzkiste kernel: Modules linked in: thermal fan button ac battery af_packet ide_scsi sata_sil libata scsi_mod eeprom powernow_k8 freq_table processor saa7134_dvb mt352 video_buf_dvb dvb_core nxt200x dvb_pll tda1004x usbhid usbmouse tda9887 tuner saa7134 video_buf compat_ioctl32 v4l2_common v4l1_compat ir_kbd_i2c ir_common videodev tsdev pcmcia firmware_class 8250_pci ehci_hcd ohci_hcd evdev 8139too 8250 serial_core psmouse yenta_socket rsrc_nonstatic pcmcia_core ide_cd usbcore ati_agp agpgart snd_atiixp_modem snd_atiixp snd_ac97_codec snd_ac97_bus snd_pcm snd_timer snd soundcore snd_page_alloc cdrom unix
> Mar 27 00:51:56 knarzkiste kernel: CPU:    0
> Mar 27 00:51:56 knarzkiste kernel: EIP:    0060:[__blockdev_direct_IO+3701/3797]    Not tainted VLI
> Mar 27 00:51:56 knarzkiste kernel: EFLAGS: 00210246   (2.6.16-git12 #1)
> Mar 27 00:51:56 knarzkiste kernel: EIP is at __blockdev_direct_IO+0xe75/0xed5
> Mar 27 00:51:56 knarzkiste kernel: eax: 00000008   ebx: dcc7d454   ecx: 00000009   edx: 00000000
> Mar 27 00:51:56 knarzkiste kernel: esi: 00000000   edi: 00000000   ebp: dcc7d400   esp: dd5fec98
> Mar 27 00:51:56 knarzkiste kernel: ds: 007b   es: 007b   ss: 0068
> Mar 27 00:51:56 knarzkiste kernel: Process xfs_fsr (pid: 4828, threadinfo=dd5fe000 task=dd11f560)
> Mar 27 00:51:56 knarzkiste kernel: Stack: <0>00000001 022faf40 0f978067 c0148ebd 007d9200 dcc7d454 d1d00bd0 c01422d6
> Mar 27 00:51:56 knarzkiste kernel:        d1d0099c dd5feef8 00000001 016bf3c0 00000009 00000009 dd61d900 007da000
> Mar 27 00:51:56 knarzkiste kernel:        00000000 00000000 00000000 00000000 00000009 00200286 00000008 00000000
> Mar 27 00:51:56 knarzkiste kernel: Call Trace:
> Mar 27 00:51:56 knarzkiste kernel:  <c0148ebd> __handle_mm_fault+0x77d/0x850   <c01422d6> __do_page_cache_readahead+0xc6/0x290
> Mar 27 00:51:56 knarzkiste kernel:  <c01f3baa> xfs_vm_direct_IO+0xda/0x100   <c01f3fe0> xfs_get_blocks_direct+0x0/0x50
> Mar 27 00:51:56 knarzkiste kernel:  <c01f3710> xfs_end_io_direct+0x0/0x90   <c0173019> touch_atime+0x59/0xc0
> Mar 27 00:51:56 knarzkiste kernel:  <c013bc87> generic_file_direct_IO+0x87/0x130   <c013bda0> generic_file_direct_write+0x70/0x1b0
> Mar 27 00:51:56 knarzkiste kernel:  <c0172f49> file_update_time+0x39/0xb0   <c01fbda6> xfs_write+0x4a6/0xd40
> Mar 27 00:51:56 knarzkiste kernel:  <c013b3b0> file_read_actor+0x0/0xe0   <c01f7d27> xfs_file_aio_write+0x87/0xb0
> Mar 27 00:51:56 knarzkiste kernel:  <c01596f4> do_sync_write+0xc4/0x120   <c01591d4> generic_file_llseek+0x34/0xe0
> Mar 27 00:51:56 knarzkiste kernel:  <c012de90> autoremove_wake_function+0x0/0x50   <c0205826> crypt+0x136/0x210
> Mar 27 00:51:56 knarzkiste kernel:  <c01f7eb5> xfs_file_ioctl+0x35/0x70   <c0159c03> vfs_write+0xa3/0x160
> Mar 27 00:51:56 knarzkiste kernel:  <c0159630> do_sync_write+0x0/0x120   <c015a5b1> sys_write+0x41/0x70
> Mar 27 00:51:56 knarzkiste kernel:  <c0102e93> sysenter_past_esp+0x54/0x75
> Mar 27 00:51:56 knarzkiste kernel: Code: ff ff 8b 84 24 80 00 00 00 bb f1 ff ff ff e8 23 39 fc ff 8b 75 2c 8b 55 34 e9 65 f8 ff ff e8 83 32 17 00 8d 76 00 e9 e4 f9 ff ff <0f> 0b 94 03 1a a5 30 c0 8d 76 00 e9 dd fb ff ff e8 66 32 17 00

-- 
Ralf Hildebrandt (i.A. des IT-Zentrums)         Ralf.Hildebrandt@xxxxxxxxxx
Charite - Universitätsmedizin Berlin            Tel.  +49 (0)30-450 570-155
Gemeinsame Einrichtung von FU- und HU-Berlin    Fax.  +49 (0)30-450 570-962
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