From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 14563] SCSI tape driver: Spurious EIO and kernel BUG
Date: Wed, 25 Nov 2009 00:21:51 GMT
Message-ID: <200911250021.nAP0Lp33017612@demeter.kernel.org>
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http://bugzilla.kernel.org/show_bug.cgi?id=14563
--- Comment #20 from Anonymous Emailer 2009-11-25 00:21:50 ---
Reply-To: fujita.tomonori@lab.ntt.co.jp
On Mon, 23 Nov 2009 12:10:06 GMT
bugzilla-daemon@bugzilla.kernel.org wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=14563
>
>
>
>
>
> --- Comment #18 from Joachim Breuer 2009-11-23 12:10:04 ---
> Created an attachment (id=23877)
--> (http://bugzilla.kernel.org/attachment.cgi?id=23877)
> --> (http://bugzilla.kernel.org/attachment.cgi?id=23877)
> Console output, 2.6.30.3, fixed tape block size 512k, patch by FUJITA Tomonori
> 2009-11-19
>
> The patch you sent changes the behavior: I still get the EIO after (in this
> case) 239 I/O requests while writing to the tape; but the machine no longer
> hard-crashes with a BUG.
>
> [I've removed the try_rdio=0/try_wdio=0 module parameters for this test.]
>
> Attached is the console log as usual with my comments interspersed; if I read
> this correctly "st0: Number of r/w requests 239, dio used in 1, pages 128."
> direct I/O is used at least once before the problem occurs.
As Kai said, it doesn't look like a kernel log with the patch
applied. With the patch, the kernel becomes more verbose.
Can you check again?
Thanks,
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