[Gluster-devel] Possibly root cause for the Gluster regression test cores?

[Pranith Kumar Karampuri]

On 04/08/2015 06:20 PM, Justin Clift wrote:
> Hi Pranith,
>
> Hagarth mentioned in the weekly IRC meeting that you have an
> idea what might be causing the regression tests to generate
> cores?
>
> Can you outline that quickly, as Jeff has some time and might
> be able to help narrow it down further. :)
>
> (and these core files are really annoying :/)
I feel it is a lot like 
https://bugzilla.redhat.com/show_bug.cgi?id=1184417. clear-locks command 
is not handled properly after we did the client_t refactor. I believe 
that is the reason for the crashes but I could be wrong. But After 
looking at the code I feel there is high probability that this is the 
issue. I didn't find it easy to fix. We will need to change the lock 
structure list maintenance heavily. Easier thing would be to disable 
clear-locks functionality tests in the regression as it is not something 
that is used by the users IMO and see if it indeed is the same issue. 
There are 2 tests using this command:
18:34:00 :) ⚡ git grep clear-locks tests
tests/bugs/disperse/bug-1179050.t:TEST $CLI volume clear-locks $V0 / 
kind all inode
tests/bugs/glusterd/bug-824753-file-locker.c: "gluster volume 
clear-locks %s /%s kind all posix 0,7-1 |"

If even after disabling these two tests it fails then we will need to 
look again. I think jeff's patch which will find the test which 
triggered the core should help here.

Pranith
>
> Regards and best wishes,
>
> Justin Clift
>
> --
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