PAX: refcount overflow detected in rsync (2.6.36.2)

[zImage]

We have several Debian Lenny i386 backup servers running daily rsync on quite big data set. Every few days random server crashes with the following oops:

Code: Select all

PAX: refcount overflow detected in: rsync:2128, uid/euid: 0/0

Unfortunately I do not have the full trace handy.

I see a very similar issue is discussed here: http://bugs.gentoo.org/256067

Other somewhat similar issues:
viewtopic.php?f=3&t=2464
viewtopic.php?f=3&t=2342
viewtopic.php?f=3&t=2325

We are running Linux 2.6.36.2 x85_64, grsecurity-2.2.1-2.6.36.2-201012092111.patch & rsync 3.0.7 (32 bit user space). What else is need to better diagnose the problem?

[spender]

We need your vmlinux (not vmlinuz) and the OOPs report to debug what specific reference counter was overflowed.

-Brad

[melonella]

Hello Brad,

I sent you the rquired info in a PM.

Thanks!

-George

[PaX Team]

thanks for the report, it's a false positive in ext4 (there're several atomics in fact that are not refcounts), will be fixed in the next patch.