[sheepdog-users] Crash due to assert failure in inode_coherence_update

[Hitoshi Mitake]

Hi Vedvyas,

Thanks for reporting the below error. I didn't see errors like this. I'll
dig the problem later. Could you add an issue on github?

Thanks,
Hitoshi

On Sun, May 8, 2016 at 10:15 PM, Vedvyas shanbhogue <vedvyas13686 at gmail.com>
wrote:

> I have sheepdog running with TGT multipath. I noticed this crash when I
> took one of the nodes offline and started bringing it back online again.
> Looks like the VDI lock state assertion failed. I see the zookeeper
> signaling the other node going away and that should have decremented the
> participant count but since this node (the one that crashed) was still
> alive I did not expect the count to go to 0. The only place I could see the
> lock_state will go to UNLOCKED is if the participant count goes to 0.
> Anyone else seen this crash? Any ideas?
>
> May 08 07:40:16  EMERG [main] inode_coherence_update(817) Asserting
> `entry->lock_state == LOCK_STATE_SHARED' failed.
> May 08 07:40:16  EMERG [main] crash_handler(277) sheep exits unexpectedly
> (Aborted).
> May 08 07:40:16  EMERG [main] sd_backtrace(833) sheep.c:279: crash_handler
> May 08 07:40:16  EMERG [main] sd_backtrace(847)
> /lib64/libpthread.so.0(+0xf0ff) [0x7f7732bcc0ff]
> May 08 07:40:16  EMERG [main] sd_backtrace(847)
> /lib64/libc.so.6(gsignal+0x36) [0x7f7731d035f6]
> May 08 07:40:16  EMERG [main] sd_backtrace(847)
> /lib64/libc.so.6(abort+0x147) [0x7f7731d04ce7]
> May 08 07:40:16  EMERG [main] sd_backtrace(833) vdi.c:817 (discriminator
> 1): inode_coherence_update
> May 08 07:40:16  EMERG [main] sd_backtrace(833) group.c:978:
> sd_notify_handler
> May 08 07:40:16  EMERG [main] sd_backtrace(833) zookeeper.c:1252:
> zk_event_handler
> May 08 07:40:16  EMERG [main] sd_backtrace(833) event.c:210: do_event_loop
> May 08 07:40:16  EMERG [main] sd_backtrace(833) sheep.c:1012: main
> May 08 07:40:16  EMERG [main] sd_backtrace(847)
> /lib64/libc.so.6(__libc_start_main+0xf4) [0x7f7731cefb14]
> May 08 07:40:16  EMERG [main] sd_backtrace(847) sheep() [0x4060b8]
>
> vs
>
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