linux-kernel - Re: two more fixes for block/for-linus

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Message-ID: <54206D0F.1010506@interlog.com>
Date:	Mon, 22 Sep 2014 14:40:15 -0400
From:	Douglas Gilbert <dgilbert@...erlog.com>
To:	Jens Axboe <axboe@...nel.dk>, Christoph Hellwig <hch@....de>
CC:	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	"Elliott, Robert (Server Storage)" <elliott@...com>
Subject: Re: two more fixes for block/for-linus

On 14-09-22 10:06 AM, Jens Axboe wrote:
> On 2014-09-22 07:59, Christoph Hellwig wrote:
>> Fix two regressions with the timer/blk_mq_start_request changes found
>> when using scsi-mq on an ATA device.
>>
>> Note that given how late we are in the cycle I wonder if we really should
>> push the changes in block/for-linus to Linus in this cycle.  The race
>> part of the timer fixes is extremly narrow, and the reserved request
>> part of it requires an out of tree driver update to trigger it, so it
>> doesn't sound super criticial.
>
> I was planning on pushing it out today, I've run a lot of testing on it
> internally last week. Ho hum, let me think about it...

With these patches applied (actually a resync an hour
ago with the for-linus tree which includes them), the
freeze-during-boot-up problem that I have been seeing
with an old SATA boot disk (perhaps 1.5 Gbps) for
the last two weeks, has gone away.

That SATA disk is connected to the motherboard (Gigabyte
Z97M-D3H/Z97M-D3H, BIOS F5 05/30/2014) and has a standard
AHCI interface as far as I can tell. dmesg confirms that.


Please add "Tested-by: Douglas Gilbert <dgilbert@...erlog.com>"
to Christoph's "two more fixes for block/for-linus" series.

Doug Gilbert



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