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SubjectRe: Kernel 2.6.9 oops during data transfer to noname usb key
On Fri, Dec 03 2004, Andrew Morton wrote:
> > Nov 10 07:47:40 darkstar kernel: [<c0103f25>]
> > kernel_thread_helper+0x5/0x10
> > Nov 10 07:47:40 darkstar kernel: SCSI error : <0 0 0 0> return code =
> > 0x70000
> > Nov 10 07:47:40 darkstar kernel: end_request: I/O error, dev sda, sector
> > 348970
> > Nov 10 07:47:40 darkstar kernel: Buffer I/O error on device sda1,
> > logical block 348907
> > Nov 10 07:47:40 darkstar kernel: lost page write due to I/O error on
> > sda1
> > Nov 10 07:47:50 darkstar kernel: ------------[ cut here ]------------
> > Nov 10 07:47:50 darkstar kernel: kernel BUG at
> > /usr/src/linux-2.6.9/drivers/block/as-iosched.c:1853!
>
> Ouch. Haven't seen that before. Maybe scsi error recovery screwed up the
> request queueing. James, have we fixed anything in that area post-2.6.9?

Yes you have, it's the old bug of queue being cleaned up with requests
pending. It should be fixed in newer kernels.

--
Jens Axboe

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