3.4.4: BUG: Bad rss-counter state x

3.4.4: BUG: Bad rss-counter state x

[Marc MERLIN]

Since I heard absolutely nothing on my last but and corruption report, I'm
not sure if they are useful or wanted (please let me know).

The last thing I've seen with 3.4.4 is this:
kernel: [116130.309667] btrfs: unlinked 25 orphans
kernel: [117951.440823] BUG: Bad rss-counter state mm:ffff8801e2a4c080 idx:1 val:-1
kernel: [117951.440832] BUG: Bad rss-counter state mm:ffff8801e2a4c080 idx:2 val:1
kernel: [119720.558186] btrfs: unlinked 12 orphans

Please let me know if you need other info and how bad this 'BUG' is (i.e. do
I need to go back from backup?).
Also, can I tell which partition/btrfs pool was affected?

gandalfthegreat:~# btrfs fi show
Label: 'btrfs_pool2'  uuid: 2d17a045-aaa2-414f-9ef4-de671ae06fae
	Total devices 1 FS bytes used 219.75GB
	devid    1 size 872.51GB used 410.04GB path /dev/dm-1

Label: 'btrfs_pool1'  uuid: 873d526c-e911-4234-af1b-239889cd143d
	Total devices 1 FS bytes used 186.58GB
	devid    1 size 231.02GB used 231.02GB path /dev/dm-0


Thanks,
Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/  

Re: 3.4.4: BUG: Bad rss-counter state x

[David Sterba]

Hi,

On Tue, Jul 03, 2012 at 10:05:55PM -0700, Marc MERLIN wrote:
> Since I heard absolutely nothing on my last but and corruption report, I'm
> not sure if they are useful or wanted (please let me know).

They are, both useful and wanted, thanks.

> The last thing I've seen with 3.4.4 is this:
> kernel: [116130.309667] btrfs: unlinked 25 orphans
> kernel: [117951.440823] BUG: Bad rss-counter state mm:ffff8801e2a4c080 idx:1 val:-1
> kernel: [117951.440832] BUG: Bad rss-counter state mm:ffff8801e2a4c080 idx:2 val:1
> kernel: [119720.558186] btrfs: unlinked 12 orphans

This is not a btrfs bug, first hit for 'bug rss-counter' pointed me to

http://comments.gmane.org/gmane.linux.kernel/1316358 (kernel 3.4.2)
->
https://lkml.org/lkml/2012/6/9/47

david

Re: 3.4.4: BUG: Bad rss-counter state x

[Marc MERLIN]

On Wed, Jul 04, 2012 at 03:53:05PM +0200, David Sterba wrote:
> Hi,
> 
> On Tue, Jul 03, 2012 at 10:05:55PM -0700, Marc MERLIN wrote:
> > Since I heard absolutely nothing on my last but and corruption report, I'm
> > not sure if they are useful or wanted (please let me know).
> 
> They are, both useful and wanted, thanks.
> 
> > The last thing I've seen with 3.4.4 is this:
> > kernel: [116130.309667] btrfs: unlinked 25 orphans
> > kernel: [117951.440823] BUG: Bad rss-counter state mm:ffff8801e2a4c080 idx:1 val:-1
> > kernel: [117951.440832] BUG: Bad rss-counter state mm:ffff8801e2a4c080 idx:2 val:1
> > kernel: [119720.558186] btrfs: unlinked 12 orphans
> 
> This is not a btrfs bug, first hit for 'bug rss-counter' pointed me to
> 
> http://comments.gmane.org/gmane.linux.kernel/1316358 (kernel 3.4.2)
> ->
> https://lkml.org/lkml/2012/6/9/47

Doh, I was not awake when I sent this yesterday, sorry for the false alert.

Thanks for the reply,
Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/