[DRBD-user] Log fills with rs_pending_cnt messages

[Dan Barker]

I probably have a bad disk (SATA).

It fails the weekly Online Verify. When it does so, the logs fill with
messages like:
block drbd2: in got_OVResult:4749: rs_pending_cnt = nn < 0 !
where nn cycles from -1 to -138 by -1 and then repeats until the logs fill
the file system. (the 4749 remains constant).

I then do the standard post-verify step of disconnect/connect.
The resource stays oos.
I then do the standard post-verify step of disconnect/connect a second time.
The resource syncs.
At least it did last week and the week before. Today, the second
disconnect/reconnect rebooted the other node (the one with no problems!).
(Message from the other node: "Due to an emergency condition, DRBD is about
to issue a reboot of node Storage01. If this is unintended, please check
your DRBD configuration file (/etc/drbd.conf)."

I'm going to replace the drive, but the verify filling my logs seems
improper.

cat /proc/drbd
version: 8.3.10 (api:88/proto:86-96)
GIT-hash: 5c0b0469666682443d4785d90a2c603378f9017b build by root at Storage00,
2011-02-06 08:54:15
 0: cs:Connected ro:Secondary/Primary ds:UpToDate/UpToDate C r-----
    ns:0 nr:104583508 dw:104583508 dr:980444636 al:0 bm:1209 lo:0 pe:0 ua:0
ap:0 ep:1 wo:b oos:0
 1: cs:Connected ro:Secondary/Primary ds:UpToDate/UpToDate C r-----
    ns:0 nr:315306457 dw:315306457 dr:980618688 al:0 bm:1300 lo:0 pe:0 ua:0
ap:0 ep:1 wo:b oos:0
 2: cs:VerifyS ro:Secondary/Primary ds:UpToDate/UpToDate C r-----
    ns:0 nr:1708 dw:158044755 dr:1004062520 al:0 bm:1763 lo:0 pe:0 ua:48
ap:0 ep:1 wo:b oos:0
        [>....................] verified:  2.7% (462664/475120)M
        finish: 5:03:41 speed: 25,992 (25,404) want: 25,600 K/sec

Dan, in Atlanta

Attachments: dmesg from Storage00 (the Secondary), conf.zip (identical on
both nodes).
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