Messages in this thread | | | Date | Wed, 14 Sep 2005 11:53:45 -0500 | From | Mike Christie <> | Subject | Re: [2.6.14-rc1] sym scsi boot hang |
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Mike Christie wrote: > Alan Stern wrote: > >> On Wed, 14 Sep 2005, Anton Blanchard wrote: >> >> >>> Hi, >>> >>> >>>> If that's the cause, it's probably a double down of the host scan >>>> semaphore somewhere in the code. alt-sysrq-t should work in this case, >>>> can you get a stack trace of the blocked process? >>> >>> >>> It appears to be this patch: >>> >>> [SCSI] SCSI core: fix leakage of scsi_cmnd's >>> >>> From: Alan Stern <stern@rowland.harvard.edu> >> >> >> >>> And in particular it looks like the scsi_unprep_request in >>> scsi_queue_insert is causing it. The following patch fixes the boot >>> problems on the vscsi machine: >> >> >> >> In general the scsi_unprep_request routine is correct and needs to be >> there. The one part that might be questionable is the assignment to >> req->special. It may turn out that the real solution is to have >> scsi_execute set req->special to NULL; I assumed it would be NULL already >> but perhaps I was wrong. > > > I think we have scsi_execute and friends setting REQ_SPECIAL. This is > could cause a problem becuase it does not have a scsi_request. >
well now actually it won't becuase sc_request should be null for those scsi_execute block pc commands I think. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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