[7.0-R] Possible ufs livelock during coredump path?

[Xin LI]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi,

It seems that we have a potential livelock during coredump on 7.0-R, the
case was that two processes trying to coredump in the same time (e.g. if
I configure kern.corefile=/var/tmp/%N.core and a lot of instances
coredump in the same time), perhaps when paging involved with it.  Upon
reboot, it would not recover but wait infinitely.  The box is running
7.0-R/i386, UP (Origin = "GenuineIntel"  Id = 0xf34  Stepping = 4).

Is this an known issue?  This is my own server but I do not have my
hands on it because it is in China, however I can provide some help if
the experiment can be recovered with a power-cycle :)

Cheers,
- --
Xin LI <delphij at delphij.net>	http://www.delphij.net/
FreeBSD - The Power to Serve!
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.9 (FreeBSD)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iEYEARECAAYFAkgVYg8ACgkQi+vbBBjt66DTMQCfXQ4q327phAzDeEmUhtgUoJxS
Ap8AniSdbCY0HN9m5wf9nAbKyLFifUQg
=V94G
-----END PGP SIGNATURE-----