Hello all.

I fight with strange problem for more than a 3 week.

What we have:
2xDell 2950 with Debian 5.0 2.6.32-bpo.5-amd64 from backports with DRBD inside + OCFS2

I make a heavy load by iozone on OCFS2 partition:
iozone -RK -t 4 -s 10g -i 0 -i 1 -i 2 -b /tmp/`hostname`.xls
on both nodes.

And after a 1-3 hour servers(both) reboots. It is DRBD or OCFS2 related just because it is not happend on normal partition. OCFS2 developers look at stack trace what I catch and say what it is not a OCFS2 problem. I try to send you an screenshot of a stacktrace but run in a 40kb limit of message(it is 32kb) Below will be some strace what i gave on console.

I start to think what it is hardware or system. I try 2.6.26 kernel and updating to testing - not helps at all.

So - it is hardware or DRBD. Could you please help me to find out there problem is?



Configs below:

mail01:~# cat /etc/drbd.d/drbd0.res
resource drbd0 {

on mail01.fxclub.org {
device /dev/drbd0;
disk /dev/sda9;
address 192.168.1.1:7789;
meta-disk internal;
}

on mail02.fxclub.org {
device /dev/drbd0;
disk /dev/sda9;
address 192.168.1.2:7789;
meta-disk internal;
}

}


mail01:~# cat /etc/drbd.d/global_common.conf
global {
    usage-count yes;
    # minor-count dialog-refresh disable-ip-verification
}

common {
    protocol C;

    handlers {
pri-on-incon-degr "/usr/lib/drbd/notify-pri-on-incon-degr.sh; /usr/lib/drbd/notify-emergency-reboot.sh; echo b > /proc/sysrq-trigger ; reboot -f"; pri-lost-after-sb "/usr/lib/drbd/notify-pri-lost-after-sb.sh; /usr/lib/drbd/notify-emergency-reboot.sh; echo b > /proc/sysrq-trigger ; reboot -f"; local-io-error "/usr/lib/drbd/notify-io-error.sh; /usr/lib/drbd/notify-emergency-shutdown.sh; echo o > /proc/sysrq-trigger ; halt -f";
        outdate-peer "/usr/lib/heartbeat/drbd-peer-outdater -t 5";
        # fence-peer "/usr/lib/drbd/crm-fence-peer.sh";
        split-brain "/usr/lib/drbd/notify-split-brain.sh root";
        # out-of-sync "/usr/lib/drbd/notify-out-of-sync.sh root";
# before-resync-target "/usr/lib/drbd/snapshot-resync-target-lvm.sh -p 15 -- -c 16k"; # after-resync-target /usr/lib/drbd/unsnapshot-resync-target-lvm.sh;
    }

    startup {
        wfc-timeout 60;
        degr-wfc-timeout 30;
        outdated-wfc-timeout 15;
        become-primary-on both;
        # wait-after-sb;
    }

    disk {
        fencing resource-and-stonith;
        no-disk-flushes;
        no-md-flushes;
        no-disk-barrier;
        # on-io-error fencing use-bmbv no-disk-barrier no-disk-flushes
        # no-disk-drain no-md-flushes max-bio-bvecs
    }

    net {
        cram-hmac-alg sha1;
        shared-secret "password";
        allow-two-primaries;
        ping-timeout 20;
        after-sb-0pri discard-zero-changes;
        after-sb-1pri discard-secondary;
        after-sb-2pri disconnect;
        data-integrity-alg sha1;
                # Tuning
                max-buffers 8000;
                max-epoch-size 8000;
                sndbuf-size 0;
# snd.buf-size rcvbuf-size timeout connect-int ping-int ping-timeout max-buffers # max-epoch-size ko-count allow-two-primaries cram-hmac-alg shared-secret # after-sb-0pri after-sb-1pri after-sb-2pri data-integrity-alg no-tcp-cork
    }

    syncer {
        rate 60M;
        al-extents 3389;
        # rate after al-extents use-rle cpu-mask verify-alg csums-alg
    }
}

P.S. I start to think what it can be a handlers and comented them - not help.

Message from sysl...@mail02 at Sep 16 09:03:19 ...
 kernel:[92182.173794] ------------[ cut here ]------------

Message from sysl...@mail02 at Sep 16 09:03:19 ...
 kernel:[92182.173872] invalid opcode: 0000 [#1] SMP

Message from sysl...@mail02 at Sep 16 09:03:19 ...
 kernel:[92182.173899] last sysfs file: /sys/module/ocfs2/refcnt


Message from sysl...@mail01 at Sep 16 15:18:37 ...
 kernel:[ 1432.310479] ------------[ cut here ]------------

Message from sysl...@mail01 at Sep 16 15:18:37 ...
 kernel:[ 1432.310648] invalid opcode: 0000 [#1] SMP

Message from sysl...@mail01 at Sep 16 15:18:37 ...
 kernel:[ 1432.310801] last sysfs file: /sys/fs/o2cb/interface_revision

Message from sysl...@mail01 at Sep 16 15:18:37 ...
 kernel:[ 1432.312251] Stack:

Message from sysl...@mail01 at Sep 16 15:18:37 ...
 kernel:[ 1432.312251] Call Trace:

Message from sysl...@mail01 at Sep 16 15:18:37 ...
kernel:[ 1432.312251] Code: 83 c3 08 48 83 3b 00 eb ec 48 83 fd 10 0f 86 89 00 00 00 48 89 ef e8 b9 e8 ff ff 48 89 c7 48 8b 00 84 c0 78 13 66 a9 00 c0 75 04 <0f> 0b eb fe 5b 5d 41 5c e9 94 58 fd ff 48 8b 4c 24 18 4c 8b 4f

--
Best regards,
Proskurin Kirill

debian-bug.jpg

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