Date: Sat, 06 Dec 2014 16:58:33 -0800 From: Drew Tomlinson <drew@mykitchentable.net> To: freebsd-questions@FreeBSD.org Subject: Probably Hardware Trouble But What Is It? Message-ID: <5483A639.2050704@mykitchentable.net>
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I'm running FBS 9.1 RELEASE that I built several years ago. It's mostly
a Samba server and has "just worked" so I've never done much more with
it. However recently, I find it "locked up" with thousands of these
messages on the console:
kernel: kern.maxfiles limit exceeded by uid 0, please see tuning(7)
I've looked in /var/log/messages and also see lots of messages like these:
Dec 6 13:55:53 vm kernel: siisch0: ... waiting for slots 18000000
Dec 6 13:55:53 vm kernel: siisch0: Timeout on slot 28
Dec 6 13:55:53 vm kernel: siisch0: siis_timeout is 00040000 ss 78000000
rs 78000000 es 00000000 sts 801b0000 serr 00000000
Dec 6 13:55:53 vm kernel: siisch0: ... waiting for slots 08000000
Dec 6 13:55:55 vm kernel: siisch0: Timeout on slot 27
Dec 6 13:55:55 vm kernel: siisch0: siis_timeout is 00040000 ss 78000000
rs 78000000 es 00000000 sts 801b0000 serr 00000000
Dec 6 13:55:55 vm kernel: (ada0:siisch0:0:0:0): FLUSHCACHE48. ACB: ea
00 00 00 00 40 00 00 00 00 00 00
Dec 6 13:55:55 vm kernel: (ada0:siisch0:0:0:0): CAM status: Command timeout
Dec 6 13:55:55 vm kernel: (ada0:siisch0:0:0:0): Retrying command
Dec 6 13:55:55 vm kernel: (ada0:siisch0:0:0:0): READ_FPDMA_QUEUED. ACB:
60 01 fe d8 74 40 39 00 00 00 00 00
Dec 6 13:55:55 vm kernel: (ada0:siisch0:0:0:0): CAM status: Command timeout
Dec 6 13:55:55 vm kernel: (ada0:siisch0:0:0:0): Retrying command
Dec 6 13:55:55 vm kernel: (ada0:siisch0:0:0:0): READ_FPDMA_QUEUED. ACB:
60 0a a5 7f 00 40 4c 00 00 00 00 00
This machine uses zfs. I have two pools:
# zpool list
NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT
zback 1.81T 848G 1008G 45% 1.00x ONLINE -
zroot 1.81T 1.16T 666G 64% 1.00x ONLINE -
Then I tried this and my ssh window is now stuck:
# zpool status
pool: zback
state: ONLINE
status: One or more devices are faulted in response to IO failures.
action: Make sure the affected devices are connected, then run 'zpool
clear'.
see: http://illumos.org/msg/ZFS-8000-HC
scan: none requested
config:
NAME STATE READ WRITE CKSUM
zback ONLINE 3 0 0
ada0 ONLINE 4 0 0
I opened another ssh window and tried 'zpool clear zback' as suggested
but it appears stuck too.
I'm sure I haven't provided all the relevant information so please ask
and I will do so. I'd appreciate any guidance on how to take a proper
backup of ada0 and what I should do next. I think this zback pool is
just the one disk which is a 2TB drive. I'd like to know how to confirm
that if possible since it seems the zpool commands aren't able to complete.
I appreciate any suggestions or guidance.
Thanks,
Drew
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