another? NFS deadlock on 9.2-PRERELEASE

[Rick Macklem]

Daniel Braniss wrote:
> I upgraded our web server, and only after 3 hours it hung :-(
> (as a side note, I have 2 other web servers, also running 9.2 doing
> great :-)
> go figure.
> 
> anyways, in
> 	ftp://ftp.cs.huji.ac.il/users/danny/freebsd/core.txt/0
> 
> is the info after a forced panic.
> 
Looks like the same hang to me. Several threads are sleeping on "pgrbwt"
and lots are waiting for an NFS vnode lock.

It should be fixed in RC3 (or revert r250907). If it still hangs with
RC3 (or r250907 reverted), email again.

rick

> my guts say its running out of resources - mainly network related,
> but
> can't pinpoint it.
> 
> any help will be most welcomed
> 
> cheers,
> 	danny
> 
> 
> 
> 
>