On Thursday 19 February 2015 10:50 PM, 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
Thanks Brian
~Pratyush
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