I reported this earlier. Bob Peterson said he would write a fix.
regards,
dan carpenter
On Fri, Jul 31, 2015 at 04:51:38PM +0800, kbuild test robot wrote:
> TO: Bob Peterson <rpete...@redhat.com>
> CC: kbuild-...@01.org
>
> tree: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> master
> head: 37bd1ea52d362219b1882814cb75bb365736890f
> commit: 6afe4c76af372a6b453f33888e664beddc4647b4 [1529/5676] GFS2: Use
> resizable hash table for glocks
> :::::: branch date: 3 hours ago
> :::::: commit date: 3 weeks ago
>
> fs/gfs2/glock.c:1798 gfs2_glock_iter_next() error: 'gi->gl' dereferencing
> possible ERR_PTR()
>
> git remote add linux-next
> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> git remote update linux-next
> git checkout 6afe4c76af372a6b453f33888e664beddc4647b4
> vim +1798 fs/gfs2/glock.c
>
> 85d1da67 Steven Whitehouse 2006-09-07 1782 return 0;
> 85d1da67 Steven Whitehouse 2006-09-07 1783 }
> 85d1da67 Steven Whitehouse 2006-09-07 1784
> 8fbbfd21 Steven Whitehouse 2007-08-01 1785 void gfs2_glock_exit(void)
> 8fbbfd21 Steven Whitehouse 2007-08-01 1786 {
> 97cc1025 Steven Whitehouse 2008-11-20 1787
> unregister_shrinker(&glock_shrinker);
> 6afe4c76 Bob Peterson 2015-03-16 1788
> rhashtable_destroy(&gl_hash_table);
> c4f68a13 Benjamin Marzinski 2007-08-23 1789
> destroy_workqueue(glock_workqueue);
> b94a170e Benjamin Marzinski 2009-07-23 1790
> destroy_workqueue(gfs2_delete_workqueue);
> 8fbbfd21 Steven Whitehouse 2007-08-01 1791 }
> 8fbbfd21 Steven Whitehouse 2007-08-01 1792
> 6afe4c76 Bob Peterson 2015-03-16 1793 static void
> gfs2_glock_iter_next(struct gfs2_glock_rht_iter *gi)
> 7c52b166 Robert Peterson 2007-03-16 1794 {
> bc015cb8 Steven Whitehouse 2011-01-19 1795 do {
> 6afe4c76 Bob Peterson 2015-03-16 1796 gi->gl =
> rhashtable_walk_next(&gi->hti);
> bc015cb8 Steven Whitehouse 2011-01-19 1797 /* Skip entries for
> other sb and dead entries */
> 6afe4c76 Bob Peterson 2015-03-16 @1798 } while ((gi->gl) &&
> ((gi->sdp != gi->gl->gl_name.ln_sbd) ||
> 6afe4c76 Bob Peterson 2015-03-16 1799
> __lockref_is_dead(&gi->gl->gl_lockref)));
> 7c52b166 Robert Peterson 2007-03-16 1800 }
> 7c52b166 Robert Peterson 2007-03-16 1801
> 6802e340 Steven Whitehouse 2008-05-21 1802 static void
> *gfs2_glock_seq_start(struct seq_file *seq, loff_t *pos)
> 7c52b166 Robert Peterson 2007-03-16 1803 {
> 6afe4c76 Bob Peterson 2015-03-16 1804 struct
> gfs2_glock_rht_iter *gi = seq->private;
> 7c52b166 Robert Peterson 2007-03-16 1805 loff_t n = *pos;
> 6afe4c76 Bob Peterson 2015-03-16 1806 int ret;
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation
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