[Lustre-discuss] LBUG on lustre 1.8.0

[Kevin Van Maren]

Sure, but I think for engineering to make progress on this bug, they  
are going to want a crash dump.  If you can enable crash dumps and  
panic on lbug (and if HA, increase dead timeout so it can complete the  
dump before being shot in the head) it would provide more info for the  
bug report.

That being said, there are quite a few other bugs that have been fixed  
since 1.8.0, so you really should upgrade ASAP to 1.8.4.

Kevin


On Nov 21, 2010, at 6:59 PM, Larry <tsrjzq at gmail.com> wrote:

> We had a LBUG several days ago on our lustre 1.8.0. One OSS reported
>
> kernel: LustreError:
> 24669:0:(service.c:1311:ptlrpc_server_handle_request())
> ASSERTION(atomic_read(&(export)->exp_refcount) < 0x5a5a5a) failed
> kernel: LustreError:
> 24669:0:(service.c:1311:ptlrpc_server_handle_request()) LBUG
> kernel: Lustre: 24669:0:(linux-debug.c:222:libcfs_debug_dumpstack())
> showing stack for process 24669
> ......
>
> I google for this, and find little information about it. It seems to
> be a race condition on OSS, right? Should I open a bugzilla for this
> LBUG?
> Thanks.
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