On Thu, Feb 19, 2015 at 12:20:28PM -0500, Brian Foster wrote: > On Thu, Feb 19, 2015 at 06:54:33PM +0530, Pratyush Anand wrote: > > My root file system is xfs. As soon as I enable event for > > xfs_trans_read_buf `echo xfs:xfs_trans_read_buf >> > > /sys/kernel/debug/tracing/set_event`, I see a kernel panic. > > > > A little bit of debugging shows that bp->b_fspriv is NULL many a time > > when trace_xfs_trans_read_buf(bp->b_fspriv) is called. > > > > I do not have any idea about xfs filesystem. So, I am not sure, if it > > is expected to have bp->b_fspriv = NULL at this location. > > > > This patch fixes the issue, until we have a better fix. > > > > Signed-off-by: Pratyush Anand <panand@xxxxxxxxxx> > > --- > > A fix for this has been posted here: > > http://oss.sgi.com/archives/xfs/2015-02/msg00101.html It's already in the 3.20-rc0 kernel, and it was marked as a stable patch so should be fixed in the next 3.19 stable kernel. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
