On 29 Jul 2013, Bernd Schubert said: > Hi Nick, > > On 07/29/2013 12:10 PM, Nick Alcock wrote: >> arcmsr0: abort device command of scsi id = 0 lun = 1 >> arcmsr0: abort device command of scsi id = 0 lun = 0 >> arcmsr: executing bus reset eh.....num_resets=0, num_[...] >> >> arcmsr0: wait 'abort all outstanding command' timeout >> arcmsr0: executing hw bus reset .... >> arcmsr0: waiting for hw bus reset return, retry=0 >> arcmsr0: waiting for hw bus reset return, retry=1 >> Areca RAID Controller0: F/W V1.46 2009-01-06 & Model ARC-1210 >> arcmsr: scsi bus reset eh returns with success >> [and back to the top of the error messages again, apparently forever, >> not that the machine would be much use without its RAID array even >> if this loop terminated at some point, so I only gave it a couple >> of minutes] >> >> The failure happens precisely at the moment we transition to early >> userspace, so presumably userspace I/O is failing (or something related >> to raw device access, perhaps, since the first thing it does is a >> vgscan). >> >> I haven't bisected yet (sorry, I have work to do which means this >> machine must be running right now), but nothing has changed in the >> arcmsr controller, nor in SCSI-land excepting >> >> commit 98dcc2946adbe4349ef1ef9b99873b912831edd4 >> Author: Martin K. Petersen <martin.petersen@xxxxxxxxxx> >> Date: Thu Jun 6 22:15:55 2013 -0400 [...] >> Obviously, at this point, this machine has no modules loaded (it has >> almost none loaded even when fully operational) > > I tested this patch with ARC-1260 and F/W V1.49, no issues. Also, this > patch is only in 3.10.3, but not yet in 3.10.1. ... and I see this problem with 3.10.3 but not 3.10.1. (Haven't tried 3.10.2.) > And I don't think this > commit can cause your issue at all, a failing heuristics would enable > WRITE SAME and would cause issues with linux-md, but there shouldn't > happen anything directly in the scsi-layer. Which was your last > working kernel version? 3.10.1. :) No changes to arcmsr between those versions... I suspect I'll have to bisect, which will be a complete pig because every failure means a hard powerdown of this box. Always-on servers rarely appreciate hard powerdowns :( -- NULL && (void) -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
