On Mon, Jun 11, 2012 at 01:42:31PM -0700, Chris J Arges wrote: > Mark Tinguely-3 wrote: > > > > The perl script to recreate this problem is very similar to xfstest 273. > > I use that because it avoids all the filesystem mount/unmount that > > happen between the test 273 loops. You can build the log size that you > > want to test, create the directories and let it run until it hangs. > > > > I tested xfstest 273, and it looks like it exhibits a different issue than > the OP in this thread. > For example, if I run this test in a while [1] loop, I get the following > backtrace: > > [16413.073946] XFS (sda5): Invalid block length (0xfffff48b) for buffer That looks bad. How big is the log on this filesystem? > [16413.073963] BUG: unable to handle kernel NULL pointer dereference at > 0000000000000130 > [16413.074274] IP: [<ffffffffa02bb870>] uuid_is_nil+0x10/0x50 [xfs] I can't really see how this function can get a null pointer dereference. It checks the pointer passed in for being null before doing anything, and otherwise it just increments and dereferences the char pointer 16 times. I can't see how that results in a NULL being dereferenced - I might just be blind though. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
