Messages in this thread | | | Date | Wed, 14 Sep 2005 11:52:13 -0500 | From | Mike Christie <> | Subject | Re: [2.6.14-rc1] sym scsi boot hang |
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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. - 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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