Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
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On Wednesday 07 April 2004 17:29, Philipp Reisner wrote:
[...]
> Could you try this patch ?
>
> - There is a good chance that it will "just work".
It works, kind off.
Normal operation appears to be ok, initial resync, normal work and so one.
A problem occurred when i attempted to repair the underlaying soft raid5 array
while a drbd resync was underway. The raid rebuild caused the drbd sync to
stall. The drbd alsodid not recover after the raid rebuild was completed.
Stopping the secondary (drbdadm down ...) worked ok, but stopping the primary
failed:
sdev01:~# drbdadm down db
drbd0: worker terminated
Child process does not terminate!
Exiting.
# tail /var/log/syslog
Apr 8 10:57:26 sdev01 kernel: drbd0: Resync started as source (need to sync
40.
Apr 8 11:09:20 sdev01 kernel: drbd0: meta connection shut down by peer.
Apr 8 11:09:20 sdev01 kernel: drbd0: asender terminated
Apr 8 11:10:21 sdev01 kernel: drbd0: worker terminated
# ps xaw
PID TTY STAT TIME COMMAND
22377 ? DW 0:14 [drbd0_receiver]
625 ttyS0 D 0:00 /sbin/drbdsetup /dev/drbd0 down
backtrace for drbd0_receiver (sysreq-t):
_drbd_process_ee
drbd0_receive D 00000086 0 22377 1 625 9715 (L-TLB)
c2441f08 00000046 00000003 00000086 00000001 00000000 f77e02a0 00000000
c2440000 c2441f08 f8c4d347 00000001 d283346c d2833000 c2441ef4 c2441eec
c01fcf96 c1a0cbe0 000186a0 93e1f740 000f7a28 cb063388 d2833000 00000000
Call Trace:
[<f8c4d347>] _drbd_process_ee+0x137/0x1d0 [drbd]
[<c01fcf96>] generic_unplug_device+0x66/0x70
[<f8c4d4ec>] drbd_get_ee+0x10c/0x280 [drbd]
[<c011e270>] default_wake_function+0x0/0x20
[<f8c4ef1a>] receive_DataRequest+0xca/0x290 [drbd]
[<f8c4de5d>] drbd_recv_header+0x1d/0xe0 [drbd]
[<f8c4ff52>] drbdd_init+0xb2/0x6c0 [drbd]
[<c0124d24>] daemonize+0xa4/0xb0
[<f8c472cd>] drbd_thread_setup+0x3d/0x60 [drbd]
[<f8c47290>] drbd_thread_setup+0x0/0x60 [drbd]
[<c0106005>] kernel_thread_helper+0x5/0x10
sdev01:~# cat /proc/modules
drbd 91616 1 - Live 0xf8c45000
sdev01:/# addr2line -e /usr/src/kbuild-srv-dev/drivers/block/drbd/drbd.o 8347
/usr/src/linux-2.6.5-vs/drivers/block/drbd/drbd_receiver.c:350
The above source code line looks a bit strange. I'll probably missunderstood
something about how the real address/offset has to be calculated. Let me know
if you need any additional information.
Andreas
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