From: Jens Axboe <axboe@kernel.dk>
To: Meelis Roos <mroos@linux.ee>,
linux-scsi@cger.kernel.org, sparclinux@vger.kernel.org
Cc: Christoph Hellwig <hch@infradead.org>
Subject: Re: Sparc ESP problem with blk-mq
Date: Tue, 14 Oct 2014 08:37:14 -0600 [thread overview]
Message-ID: <543D351A.1020505@kernel.dk> (raw)
In-Reply-To: <alpine.LRH.2.11.1410140102230.18488@adalberg.ut.ee>
On 2014-10-13 16:07, Meelis Roos wrote:
> I turned on blk-mq for all my test machines today and got a failure from
> Sun Ultra 1 with Sparc ESP SCSI (dmesg below). Booting with
> scsi_mod.use_blk_mq=0 fixes the problem. The problem is reproducible.
[snip]
> [ 63.244199] esp: esp0, regs[1ffe8800000:1ffe8400000] irq[10]
> [ 63.310055] esp: esp0 is a FAS100A, 40 MHz (ccf=0), SCSI ID 7
> [ 66.383895] scsi host0: esp
> [ 148.437533] scsi 0:0:0:0: timing out command, waited 82s
> [ 149.674112] ESP: unexpected IREG 40
> [ 149.713889] esp: esp0: Dumping command log
> [ 149.762847] esp: esp0: ent[14] CMD val[01] sreg[93] seqreg[04] sreg2[00] ireg[18] ss[00] event[0d]
[snip]
Christoph, any idea on this? The command just times out, for some
reason. Only thing I could think of was related to perhaps missing
bouncing or similar, but I don't think that's the case. But the hba must
not like the request somehow. Or perhaps it sets up the wrong number of
segments.
--
Jens Axboe
WARNING: multiple messages have this Message-ID (diff)
From: Jens Axboe <axboe@kernel.dk>
To: Meelis Roos <mroos@linux.ee>,
linux-scsi@cger.kernel.org, sparclinux@vger.kernel.org
Cc: Christoph Hellwig <hch@infradead.org>
Subject: Re: Sparc ESP problem with blk-mq
Date: Tue, 14 Oct 2014 14:37:14 +0000 [thread overview]
Message-ID: <543D351A.1020505@kernel.dk> (raw)
In-Reply-To: <alpine.LRH.2.11.1410140102230.18488@adalberg.ut.ee>
On 2014-10-13 16:07, Meelis Roos wrote:
> I turned on blk-mq for all my test machines today and got a failure from
> Sun Ultra 1 with Sparc ESP SCSI (dmesg below). Booting with
> scsi_mod.use_blk_mq=0 fixes the problem. The problem is reproducible.
[snip]
> [ 63.244199] esp: esp0, regs[1ffe8800000:1ffe8400000] irq[10]
> [ 63.310055] esp: esp0 is a FAS100A, 40 MHz (ccf=0), SCSI ID 7
> [ 66.383895] scsi host0: esp
> [ 148.437533] scsi 0:0:0:0: timing out command, waited 82s
> [ 149.674112] ESP: unexpected IREG 40
> [ 149.713889] esp: esp0: Dumping command log
> [ 149.762847] esp: esp0: ent[14] CMD val[01] sreg[93] seqreg[04] sreg2[00] ireg[18] ss[00] event[0d]
[snip]
Christoph, any idea on this? The command just times out, for some
reason. Only thing I could think of was related to perhaps missing
bouncing or similar, but I don't think that's the case. But the hba must
not like the request somehow. Or perhaps it sets up the wrong number of
segments.
--
Jens Axboe
next prev parent reply other threads:[~2014-10-14 14:37 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-13 22:07 Sparc ESP problem with blk-mq Meelis Roos
2014-10-13 22:07 ` Meelis Roos
2014-10-14 14:37 ` Jens Axboe [this message]
2014-10-14 14:37 ` Jens Axboe
2014-10-14 14:38 ` Jens Axboe
2014-10-14 14:38 ` Jens Axboe
2014-10-15 13:35 ` Christoph Hellwig
2014-10-15 13:35 ` Christoph Hellwig
2014-10-15 20:53 ` David Miller
2014-10-15 20:53 ` David Miller
2014-10-16 6:43 ` mroos
2014-10-16 6:43 ` mroos
2014-10-17 19:56 ` David Miller
2014-10-17 19:56 ` David Miller
2014-10-18 17:31 ` David Miller
2014-10-18 17:31 ` David Miller
2014-10-18 17:57 ` Christoph Hellwig
2014-10-18 17:57 ` Christoph Hellwig
2014-10-19 12:10 ` mroos
2014-10-19 12:10 ` mroos
2014-10-19 14:10 ` Christoph Hellwig
2014-10-19 14:10 ` Christoph Hellwig
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