[Gluster-devel] qa39 crash

[Emmanuel Dreyfus]

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.


-- 
Emmanuel Dreyfus
http://hcpnet.free.fr/pubz
manu at netbsd.org