Messages in this thread | | | Date | Mon, 29 Jul 2013 16:16:57 +0200 | From | Bernd Schubert <> | Subject | Re: [SCSI REGRESSION] 3.10.2 or 3.10.3: arcmsr failure at bootup / early userspace transition |
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On 07/29/2013 03:05 PM, Nix wrote: > 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@oracle.com> >>> 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.)
Hmm, indeed that points to this commit. I just don't see what could fail there.
Could you try to run these commands with 3.10.1?
# # check if reporting opcodes works # sg_opcodes -v -n /dev/sdX
# check ata information page # sg_vpd --page=0x89 /dev/sdX
> >> 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. :)
Whoops, sorry, I missed that in your first sentence.
> > 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 :( >
Maybe just revert this commit? Helpful would be some scsi logging to see which command actually fails. I guess you don't have a serial console?
Thanks, Bernd
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