Re: Fw: oops in kernel 2.6.9

Re: Fw: oops in kernel 2.6.9

[Andrew Morton]

Jens Axboe <axboe@suse.de> wrote:
>
> On Tue, Oct 19 2004, Andrew Morton wrote:
> > 
> > oy.
> 
> Looks like a SCSI issue, it probably killed the queue before the io
> scheduler was entered again.

Better add linux-scsi to cc then...

> > 
> > Begin forwarded message:
> > 
> > Date: Tue, 19 Oct 2004 22:59:12 +0200
> > From: Stefano Vesa <stefanovesa@tiscali.it>
> > To: linux-kernel@vger.kernel.org
> > Subject: oops in kernel 2.6.9
> > 
> > 
> > I'm running kernel 2.6.9 fully preentible on a Slackware 10 with 
> > udev-040 ,hotplug 2004_09_23 and module-init-tools-3.0
> > I can reproduce a oops when I try, after unmounting the device, to
> > disconnect or power off a Plextor PX-W4824 USB burner from a uhci_hcd
> > host. When in X the machine hangs.
> > My machine is a pentium 3 on a 440BX chipset.
> > 
> > No problem with kernel 2.6.7.
> > 
> > Sorry if I have not made a subscription to the mailing list but
> > I am a newbie and don't understand very much the topics I read in it.
> > I hope it can be useful...
> > 
> > Oct 19 17:59:46 chopin kernel: sr 0:0:0:0: Illegal state transition
> > cancel->offline
> > Oct 19 17:59:46 chopin kernel: Badness in scsi_device_set_state at
> > drivers/scsi/scsi_lib.c:1688
> > Oct 19 17:59:46 chopin kernel:  [<c896bcc9>] scsi_device_set_state
> > +0xc9/0x120 [scsi_mod]
> > Oct 19 17:59:46 chopin kernel:  [<c89699ae>] scsi_eh_offline_sdevs
> > +0x6e/0x90 [scsi_mod]
> > Oct 19 17:59:46 chopin kernel:  [<c8969e83>] scsi_unjam_host+0xc3/0xd0
> > [scsi_mod]
> > Oct 19 17:59:46 chopin kernel:  [<c8969f38>] scsi_error_handler
> > +0xa8/0xd0 [scsi_mod]
> > Oct 19 17:59:46 chopin kernel:  [<c8969e90>] scsi_error_handler+0x0/0xd0
> > [scsi_mod]
> > Oct 19 17:59:46 chopin kernel:  [<c01023bd>] kernel_thread_helper
> > +0x5/0x18
> > Oct 19 17:59:46 chopin kernel: Unable to handle kernel paging request at
> > virtual address 5f6c656e
> > Oct 19 17:59:46 chopin kernel:  printing eip:
> > Oct 19 17:59:46 chopin kernel: c02281f3
> > Oct 19 17:59:46 chopin kernel: *pde = 00000000
> > Oct 19 17:59:46 chopin kernel: Oops: 0000 [#1]
> > Oct 19 17:59:46 chopin kernel: PREEMPT 
> > Oct 19 17:59:46 chopin kernel: Modules linked in: nls_utf8 isofs
> > nls_base sr_mod usb_storage scsi_mod snd_ice1712 snd_ice17xx_ak4xxx
> > snd_pcm snd_timer snd_page_alloc snd_ak4xxx_adda snd_cs8427
> > snd_ac97_codec snd_i2c snd_mpu401_uart snd_rawmidi snd soundcore usbhid
> > 3c59x uhci_hcd usbcore intel_agp agpgart rtc
> > Oct 19 17:59:46 chopin kernel: CPU:    0
> > Oct 19 17:59:46 chopin kernel: EIP:    0060:[<c02281f3>]    Not tainted
> > VLI
> > Oct 19 17:59:46 chopin kernel: EFLAGS: 00010083   (2.6.9) 
> > Oct 19 17:59:46 chopin kernel: EIP is at as_requeue_request+0x93/0xf0
> > Oct 19 17:59:46 chopin kernel: eax: 5f6c656e   ebx: 00000000   ecx:
> > c7e50028   edx: c7f048b0
> > Oct 19 17:59:46 chopin kernel: esi: c7f048b0   edi: c7fd7740   ebp:
> > 00000202   esp: c3895f04
> > Oct 19 17:59:46 chopin kernel: ds: 007b   es: 007b   ss: 0068
> > Oct 19 17:59:46 chopin kernel: Process scsi_eh_0 (pid: 3130,
> > threadinfo=c3894000 task=c7b94020)
> > Oct 19 17:59:46 chopin kernel: Stack: 00000000 c010479d 00000000
> > c01023bd c7f048b0 c3bb4040 c7e50028 c021f846 
> > Oct 19 17:59:46 chopin kernel:        c7e50028 c7f048b0 c7f048b0
> > c3bb4040 c02221cd c7e50028 c7f048b0 c7b94020 
> > Oct 19 17:59:46 chopin kernel:        00000286 c7a08800 c3bb4040
> > c7fd0a00 00001057 c896a247 c7e50028 c7f048b0 
> > Oct 19 17:59:46 chopin kernel: Call Trace:
> > Oct 19 17:59:46 chopin kernel:  [<c010479d>] print_context_stack
> > +0x2d/0x70
> > Oct 19 17:59:46 chopin kernel:  [<c01023bd>] kernel_thread_helper
> > +0x5/0x18
> > Oct 19 17:59:46 chopin kernel:  [<c021f846>] elv_requeue_request
> > +0x26/0x60
> > Oct 19 17:59:46 chopin kernel:  [<c02221cd>] blk_insert_request
> > +0xdd/0xe0
> > Oct 19 17:59:46 chopin kernel:  [<c896a247>] scsi_queue_insert+0x77/0xb0
> > [scsi_mod]
> > Oct 19 17:59:46 chopin kernel:  [<c8969daf>] scsi_eh_flush_done_q
> > +0x9f/0xb0 [scsi_mod]
> > Oct 19 17:59:46 chopin kernel:  [<c8969e4f>] scsi_unjam_host+0x8f/0xd0
> > [scsi_mod]
> > Oct 19 17:59:46 chopin kernel:  [<c8969f38>] scsi_error_handler
> > +0xa8/0xd0 [scsi_mod]
> > Oct 19 17:59:46 chopin kernel:  [<c8969e90>] scsi_error_handler+0x0/0xd0
> > [scsi_mod]
> > Oct 19 17:59:46 chopin kernel:  [<c01023bd>] kernel_thread_helper
> > +0x5/0x18
> > Oct 19 17:59:46 chopin kernel: Code: ff c7 43 38 02 00 00 00 8b 43 18 85
> > c0 74 19 8b 40 10 85 c0 74 12 ff 40 10 eb 0d 90 90 90 90 90 90 90 90 90
> > 90 90 90 90 8b 47 2c <8b> 10 89 72 04 89 16 89 46 04 89 30 8b 5c 24 10
> > 89 7c 24 20 8b 
> > Oct 19 17:59:46 chopin kernel:  <6>note: scsi_eh_0[3130] exited with
> > preempt_count 1
> > 
> > 
> > -
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> > 
> 
> -- 
> Jens Axboe

Re: Fw: oops in kernel 2.6.9

[James Bottomley]

On Wed, 2004-10-20 at 01:48, Andrew Morton wrote:
> Jens Axboe <axboe@suse.de> wrote:
> >
> > On Tue, Oct 19 2004, Andrew Morton wrote:
> > > 
> > > oy.
> > 
> > Looks like a SCSI issue, it probably killed the queue before the io
> > scheduler was entered again.
> 
> Better add linux-scsi to cc then...

The SCSI half of the fix for this is in bk latest (that was adding a
refcount to the device as soon as the command is issued).  I'm not sure
about the usb-storage piece (not exciting the error handler by ignoring
commands when the device is unplugged).

James