Messages in this thread | | | Date | Thu, 12 Jan 2006 07:31:55 -0500 | From | Ric Wheeler <> | Subject | Re: 2.6.15-mm2 |
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Reuben Farrelly wrote:
> > > On 13/01/2006 12:18 a.m., Tejun Heo wrote: > >> On Thu, Jan 12, 2006 at 09:38:48PM +1300, Reuben Farrelly wrote: >> [--snip--] >> >>> [start_ordered ] f7e8a708 -> c1b028fc,c1b029a4,c1b02a4c infl=1 >>> [start_ordered ] f74b0e00 0 48869571 8 8 1 1 c1ba9000 >>> [start_ordered ] BIO f74b0e00 48869571 4096 >>> [start_ordered ] ordered=31 in_flight=1 >>> [blk_do_ordered ] start_ordered f7e8a708->00000000 >>> [blk_do_ordered ] seq=02 f74ccd98->f74ccd98 >>> [blk_do_ordered ] seq=02 f74ccd98->f74ccd98 >>> [blk_do_ordered ] seq=02 c1b028fc->00000000 >>> [blk_do_ordered ] seq=02 c1b028fc->00000000 >>> [blk_do_ordered ] seq=02 c1b028fc->00000000 >> >> >> Yeap, this one is the offending one. 0xf74ccd98 got requeued in front >> of pre-flush while draining and when it finished it didn't complete >> draining thus hanging the queue. It seems like it's some kind of >> special request which probably fails and got retried. Are you using >> SMART or something which issues special commands to drives? > > > No SMART, although I should be (rebuilt the system a few months > ago..and must > have missed it). > > Are there any other things which could be contributing to this? > <scratches head> > Could this be hdparm or something tweaking the drive write cache settings, etc?
ric
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