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Message-ID: <alpine.DEB.2.02.1109110511250.8626@p34.internal.lan>
Date: Sun, 11 Sep 2011 05:40:09 -0400 (EDT)
From: Justin Piszcz <jpiszcz@...idpixels.com>
To: linux-kernel@...r.kernel.org
cc: xfs@....sgi.com, Alan Piszcz <ap@...arrain.com>
Subject: 3.1-rc4: spectacular kernel errors / filesystem crash
Hi,
Over the past 24-48 hours I was running some CPU-intenstive jobs and there
was heavy I/O on the RAID (9750-24i4e + a RAID6)..
I believe most of the problem started when I included many kernel options
as modules (before I only compiled in [*] the drivers I used), there
appears to have something to gone awry in the kernel and then afterwards,
disks started going in and out, XFS shut down, etcera.
I'm opening a case with LSI to see what happened with the 3ware card;
however, after a power cycle, everything came back OK (the drives and HW)
is physically OK, it is rebuilding onto those two drives with CFG-OP-FAIL
but other than that, everything 'seems' OK, still need to do an fsck.
Something went wrong in the kernel and caused a cascading effect of
errors, this occurred (I believe) when I started to run a lot of encoding
jobs; however, I was doing a lot of data transfer for the past 24-48 hours
on the RAID array, the system (separate SSD/EXT4) remained unaffected but
other weird stuff happened as well..
I still see these in the logs as well after the reboot (not often; but e.g.,
the RAID controller is rebuilding from the two drives with CFG-OPT-FAIL (the
physical drives are 100% healthy):
[ 1062.925904] 3w-sas 0000:83:00.0: vpd r/w failed. This is likely a firmware bug on this device. Contact the card vendor for a firmware update.
So, my plan:
1. Report this error to LKML+XFS mailing lists.
2. Open case with LSI support.
3. Recompile the kernel how I used for many years [only compile in options
that you need [*] and do not compile drivers as modules]
4. Reboot Linux systems and see if this recurs again under the same
workload, after the RAID is done rebuilding.
--
So these errors are quite long, will upload to HTTP and paste the relevant
bits below.
--
URLs for FULL logs:
1. tw_cli /cX show diag:
http://home.comcast.net/~jpiszcz/20110911/show_diag.txt
2. Full kernel log (and previous morning of kernel crash)
http://home.comcast.net/~jpiszcz/20110911/kern.log.txt
3. tw_cli /cX show all
http://home.comcast.net/~jpiszcz/20110911/cfg-fail.txt
--
Summary (what seems to have occurred, have not done a full analysis yet)
1. 3ware card freaked out due to kernel/RCU/APIC(?) errors
2. Then, the time source went unstable (this happens with weird kernel bugs
on many different hosts, I have seen this over time).
3. Then, on the 3ward carde, drives started leaving and being re-inserted
by themsevles, XFS went off-line to protect the filesystem due to the
3ware issues
--
3ware/RAID-- Interesting errors:
I've never seen this before on a 3ware RAID controller, at least from what
I can remember and I've been using 3ware cards for many years..
p2 CFG-OP-FAIL - 2.73 TB SATA 2 - Hitachi HDS723030AL
p3 CFG-OP-FAIL - 2.73 TB SATA 3 - Hitachi HDS723030AL
--
Kernel/ERRORS:
FWIW it all seem to start during an encoding job around 21:00:
Sep 10 18:00:00 p34 kernel: [520427.143054] ixgbe 0000:03:00.0: eth6: NIC Link is Down
Sep 10 19:20:04 p34 kernel: [525223.256098] 3w-sas: scsi1: AEN: INFO (0x04:0x002B): Verify completed:unit=0.
Sep 10 20:59:39 p34 kernel: [531189.671361] ------------[ cut here ]------------
Sep 10 20:59:39 p34 kernel: [531189.671376] WARNING: at net/sched/sch_generic.c:255 dev_watchdog+0x23f/0x250()
Sep 10 20:59:39 p34 kernel: [531189.671378] Hardware name: X8DTH-i/6/iF/6F
Sep 10 20:59:39 p34 kernel: [531189.671380] NETDEV WATCHDOG: eth1 (igb): transmit queue 5 timed out
Sep 10 20:59:39 p34 kernel: [531189.671382] Modules linked in: dm_mod tcp_diag parport_pc ppdev lp parport inet_diag pl2303 ftdi_sio snd_usb_audio snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc snd_hwdep snd_usbmidi_lib snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore ub cdc_acm usbserial joydev serio_raw nouveau ttm drm_kms_helper drm agpgart i2c_algo_bit mxm_wmi wmi i7core_edac edac_core video
Sep 10 20:59:39 p34 kernel: [531189.671414] Pid: 83, comm: ksoftirqd/19 Not tainted 3.1.0-rc4 #1
Sep 10 20:59:39 p34 kernel: [531189.671415] Call Trace:
Sep 10 20:59:39 p34 kernel: [531189.671424] [<ffffffff810379ba>] warn_slowpath_common+0x7a/0xb0
Sep 10 20:59:39 p34 kernel: [531189.671427] [<ffffffff81037a91>] warn_slowpath_fmt+0x41/0x50
Sep 10 20:59:39 p34 kernel: [531189.671433] [<ffffffff815d7874>] ? schedule+0x2e4/0x950
Sep 10 20:59:39 p34 kernel: [531189.671436] [<ffffffff814e5aff>] dev_watchdog+0x23f/0x250
Sep 10 20:59:39 p34 kernel: [531189.671440] [<ffffffff81043872>] run_timer_softirq+0xf2/0x220
Sep 10 20:59:39 p34 kernel: [531189.671443] [<ffffffff814e58c0>] ? qdisc_reset+0x50/0x50
Sep 10 20:59:39 p34 kernel: [531189.671446] [<ffffffff8103d208>] __do_softirq+0x98/0x120
Sep 10 20:59:39 p34 kernel: [531189.671448] [<ffffffff8103d345>] run_ksoftirqd+0xb5/0x160
Sep 10 20:59:39 p34 kernel: [531189.671454] [<ffffffff8103d290>] ? __do_softirq+0x120/0x120
Sep 10 20:59:39 p34 kernel: [531189.671458] [<ffffffff810523b7>] kthread+0x87/0x90
Sep 10 20:59:39 p34 kernel: [531189.671462] [<ffffffff815dbdb4>] kernel_thread_helper+0x4/0x10
Sep 10 20:59:39 p34 kernel: [531189.671465] [<ffffffff81052330>] ? kthread_worker_fn+0x130/0x130
Sep 10 20:59:39 p34 kernel: [531189.671467] [<ffffffff815dbdb0>] ? gs_change+0xb/0xb
Sep 10 20:59:39 p34 kernel: [531189.671468] ---[ end trace 553dfe731fce91ba ]---
Sep 10 20:59:39 p34 kernel: [531189.671478] igb 0000:01:00.1: eth1: Reset adapter
Sep 10 20:59:42 p34 kernel: [531192.826058] igb: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
Sep 10 21:00:00 p34 kernel: [531210.034506] BUG: soft lockup - CPU#0 stuck for 22s! [kswapd0:947]
--
URLs for FULL logs:
1. tw_cli /cX show diag:
http://home.comcast.net/~jpiszcz/20110911/show_diag.txt
2. Full kernel log (and previous morning of kernel crash)
http://home.comcast.net/~jpiszcz/20110911/kern.log.txt
3. tw_cli /cX show all
http://home.comcast.net/~jpiszcz/20110911/cfg-fail.txt
--
Currently...
After all of this happened, I stopped all I/O on the system/all processes, etc
I shutdown the host, removed the power, powered it back up, now the drives
that showed CFG-OP-FAIL before now show as REBUILDING, I am waiting for them
to rebuild before doing anything else.
Justin.
--
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