[Gluster-devel] qa39 crash

[Vijay Bellur]

On 05/01/2012 11:01 AM, Emmanuel Dreyfus wrote:
> Emmanuel Dreyfus<manu at netbsd.org>  wrote:
>
>> I added printf, and inode is NULL in mdc_inode_pre() therefore this is
>> not an uninitializd lock problem.
>
> Indeed, this this the mdc_local_t  structure that seems uninitialized:
>
> (gdb) frame 3
> #3  0xbaa0ecb5 in mdc_setattr_cbk (frame=0xbb7e32a0, cookie=0xbb7a4380,
>      this=0xba3e3000, op_ret=0, op_errno=0, prebuf=0xb940a57c,
>      postbuf=0xb940a5e4, xdata=0x0) at md-cache.c:1365
> 1365            mdc_inode_iatt_set (this, local->loc.inode, postbuf);
>
> (gdb) print *(mdc_local_t *)frame->local
> $6 = {loc = {path = 0x0, name = 0x0, inode = 0x0, parent = 0x0,
>      gfid = '\000'<repeats 15 times>, pargfid = '\000'
>     <repeats 15 times>}, loc2 = {path = 0x0, name = 0x0, inode = 0x0,
>     parent = 0x0, gfid = '\000'<repeats 15 times>,
>     pargfid = '\000'<repeats 15 times>},  fd = 0xb8f9d230,
>     linkname = 0x0, xattr = 0x0}
>
> And indeed local->loc it is not initialized in mdc_fsetattr(). I suspect
> there is away of obteining it from fd, but this is getting beyond by
> knowledge of glusterfs internals.
>
>

Do you have a test case that causes this crash?

Vijay