linux-mm.kvack.org archive mirror
 help / color / mirror / Atom feed
* Re: 5.0.0-rc8-next-20190301+: kernel bug at fs/inode.c:513
       [not found] <20190304160255.GA6914@amd>
@ 2019-03-04 22:32 ` Theodore Y. Ts'o
       [not found]   ` <20190304231426.GA6191@amd>
  0 siblings, 1 reply; 2+ messages in thread
From: Theodore Y. Ts'o @ 2019-03-04 22:32 UTC (permalink / raw)
  To: Pavel Machek; +Cc: adilger.kernel, jack, linux-fsdevel, linux-mm

(Adding linux-mm and moving linux-ext4 and linux-kernel to the bcc
list...)

On Mon, Mar 04, 2019 at 05:02:55PM +0100, Pavel Machek wrote:
> 
> This happened on trying to sync filesystems with unison:
> 
> Any ideas?
> 
> Should I be forcing fsck soon?
> 								Pavel
> 
> [12717.827444] ------------[ cut here ]------------
> [12717.827465] kernel BUG at fs/inode.c:513!

It seems unlikely that fsck is going to help.  The BUG_ON in question
appears to be:

	BUG_ON(inode->i_data.nrexceptional);

This is an in-memory accounting variable which seems to be related to
tracking DAX and shadow page entries --- and it seems very unlikely to
be the sort of thing triggered by an on-disk corruption.

Do you have a reliable repro for this?  If so, the next step would be
to bisect...

					- Ted


^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: 5.0.0-rc8-next-20190301+: kernel bug at fs/inode.c:513
       [not found]   ` <20190304231426.GA6191@amd>
@ 2019-03-05 21:33     ` Theodore Y. Ts'o
  0 siblings, 0 replies; 2+ messages in thread
From: Theodore Y. Ts'o @ 2019-03-05 21:33 UTC (permalink / raw)
  To: Pavel Machek; +Cc: adilger.kernel, jack, linux-fsdevel, linux-mm

On Tue, Mar 05, 2019 at 12:14:26AM +0100, Pavel Machek wrote:
> Hi!
> 
> > (Adding linux-mm and moving linux-ext4 and linux-kernel to the bcc
> > list...)
> 
> Umm. So I ... bcc them too?

Nah, I bcc'ed them so that people on those lists would understand that
I had dropped them from thread because it probably isn't appropriate
to include them on the thread.

> > Do you have a reliable repro for this?  If so, the next step would be
> > to bisect...
> 
> It happened just once... so I don't yet know.
> 
> I'm not even sure what file was affected. unison was showing some kind
> of png from openstreetmap cache, but I could read it using md5sum just
> fine.
> 
> -next is normally pretty boring, but it seems to get pretty
> interesting around -final release...

OK, let's see if anyone else reports a similar failure.

    	      	 	     	 		  - Ted


^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2019-03-05 21:33 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
     [not found] <20190304160255.GA6914@amd>
2019-03-04 22:32 ` 5.0.0-rc8-next-20190301+: kernel bug at fs/inode.c:513 Theodore Y. Ts'o
     [not found]   ` <20190304231426.GA6191@amd>
2019-03-05 21:33     ` Theodore Y. Ts'o

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).