* Re: git-bisect points to block: discard granularity might not be power of 2
[not found] <5806f82593938f8c5ec753ef9f1f27cbc5508ddc@webmail.internode.on.net>
@ 2012-12-20 13:40 ` Jens Axboe
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From: Jens Axboe @ 2012-12-20 13:40 UTC (permalink / raw)
To: Arthur Marsh; +Cc: shli, neilb, linux-kernel
On 2012-12-20 14:33, Arthur Marsh wrote:
> Hi,
> one of my machines is locking up fairly early in the boot process (about 1.4 seconds in) with recent kernels and a git-bisect lead to:
> commit 8dd2cb7e880d2f77fba53b523c99133ad5054cfd
>
> Author: Shaohua Li <shli@kernel.org>
> Date: Fri Dec 14 11:15:36 2012 +0800
>
> block: discard granularity might not be power of 2
>
> In MD raid case, discard granularity might not be power of 2, for example, a
> 4-disk raid5 has 3*chunk_size discard granularity. Correct the calculation for
> such cases.
>
> Reported-by: Neil Brown <neilb@suse.de>
> Signed-off-by: Shaohua Li <shli@fusionio.com>
> Signed-off-by: Jens Axboe <axboe@kernel.dk>
>
> The machine is a dual core Pentium IV with 2 IDE and one SCSI disk. I've tried pulling the SCSI card out and the problem still occurs.
>
> There are no software raid arrays assembled in the boot process.
>
> Short of taking a photo of the monitor with the dump on it I'm a bit stuck as to what to do to further identify the problem.
Should be fixed in Linus' tree as-of yesterday. So please try that and
report back if it doesn't work.
--
Jens Axboe
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2012-12-20 13:40 ` git-bisect points to block: discard granularity might not be power of 2 Jens Axboe
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