on 01/04/2014 02:22 R. Tyler Croy said the following:
> Bumping this with more details
> On Fri, 28 Mar 2014 09:53:32 -0700
> R Tyler Croy <ty...@monkeypox.org> wrote:
>> Apologies for the rough format here, I had to take a picture of this
>> failure because I didn't know what else to do.
>> <http://www.flickr.com/photos/agentdero/13469355463/>
>> I'm building off of the GitHub freebsd.git mirror here, and the
>> latest commit in the tree is neel@'s "Add an ioctl to suspend.."
>> My dmesg/pciconf are here:
>> https://gist.github.com/rtyler/1faa854dff7c4396d9e8
> As linked before, the dmesg and `pciconf -lv` output can be found here:
> <https://gist.github.com/rtyler/1faa854dff7c4396d9e8>
> Also in addition to the photo from before of the panic, here's another
> reproduction photo:
> <https://www.flickr.com/photos/agentdero/13472248423/>

Are you or have you even been running with any ZFS-related kernel patches?

> I'm running -CURRENT as of r263881 right now, with a custom kernel
> which is built on top of the VT kernel
> (https://github.com/rtyler/freebsd/blob/5e324960f1f2b7079de369204fe228db4a2ec99d/sys/amd64/conf/KIWI)
> I'm able to get this panic *consistently* whenever a process accesses
> my maildir folder which I sync with the mbsync program (isync package),
> such as `mbsync personal` or when I back up the maildir with duplicity.
> The commonality seems to be listing or accessing portions of this file
> tree. Curiously enough it only seems to be isolated to that single
> portion of the filesystem tree.
> The zpool is also clean as far as errors go:
>> [16:11:03] tyler:freebsd git:(master*) $ zpool status zroot
>>   pool: zroot
>>  state: ONLINE
>> status: Some supported features are not enabled on the pool. The pool
>> can still be used, but some features are unavailable.
>> action: Enable all features using 'zpool upgrade'. Once this is done,
>>         the pool may no longer be accessible by software that does not
>> support the features. See zpool-features(7) for details.
>>   scan: scrub repaired 0 in 0h18m with 0 errors on Fri Mar 28 11:55:03
>> 2014 config:
>>         NAME          STATE     READ WRITE CKSUM
>>         zroot         ONLINE       0     0     0
>>           ada0p3.eli  ONLINE       0     0     0
>> errors: No known data errors
>> [16:19:57] tyler:freebsd git:(master*) $ 
> I'm not sure what other data would be useful here, I can consistently
> see the panic, but this data is highly personal, so I'm not sure how
> much of a "repro case" I can give folks. :(
> Cheers

Andriy Gapon
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