(resent with correct linux-scsi address)
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
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