Messages in this thread | | | Date | Fri, 24 Sep 2010 11:12:29 +0200 | From | Jens Axboe <> | Subject | Re: "blocked for more than 120 secs" --> a valid situation, how to prevent? |
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On 2010-09-24 05:51, Mark Lord wrote: > On 10-09-23 10:53 PM, Mark Lord wrote: >> On 10-09-23 08:05 PM, Douglas Gilbert wrote: >>> Mark, >>> If you issued the SG_IO ioctl with a timeout of at >>> least 66 minutes (expressed in milliseconds) then >>> it looks like ata_scsi_queuecmd() has a problem. >> .. >> >> Mmm.. more like blk_execute_rq() perhaps. >> That's where the wait_for_completion(&wait) call is at. >> >> Perhaps I should change it to wait in smaller increments, >> so that the lockup detection doesn't trigger on it.. > .. > > This patch (below) seems to work. > > Does this look kosher enough for me to roll it up > as a proper patch submission? Jens? Joel?
Ideally it would be nice to just pass the info down that it should not complain, since waiting > 120 seconds (or whatever the timeout is set to) is expected by the caller in some cases.
But your patch is simple enough and it gets the job done. I will queue it up for .37 if you send a properly formatted and signed-off-by version.
-- Jens Axboe
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