Panic with chromium and 8.1-STABLE (Thu Sep 16 09:52:17 BRT 2010)

[Kostik Belousov]

On Sun, Sep 19, 2010 at 07:28:13PM -0300, Mario Sergio Fujikawa Ferreira wrote:
> Hi,
> 
> 	I've just began trying chrome web browser from
> http://chromium.hybridsource.org/ but it triggered 2 panics on my
> 8.1-STABLE system.
> 
> $ uname -a
> FreeBSD exxodus.fedaykin.here 8.1-STABLE FreeBSD 8.1-STABLE #26: Thu Sep 16 09:52:17 BRT 2010     lioux at exxodus:/usr/obj/usr/src/sys/LIOUX  amd64
> 
> 	The panic information is:
> 
> ------------
> panic: vm_page_unwire: invalid wire count: 0
> cpuid = 0
> KDB: enter: panic
> 
> 0xffffff006ecce000: tag ufs, type VREG
>     usecount 1, writecount 1, refcount 4 mountedhere 0
>     flags ()
>     v_object 0xffffff0151489870 ref 0 pages 8
>     lock type ufs: EXCL by thread 0xffffff00200947c0 (pid 25025)
>         ino 119526591, on dev ufs/fsusr
> 
> 0xffffff011107f938: tag ufs, type VREG
>     usecount 0, writecount 0, refcount 4 mountedhere 0
>     flags (VV_NOSYNC|VI_DOINGINACT)
>     v_object 0xffffff0151f7f870 ref 0 pages 1284
>     lock type ufs: EXCL by thread 0xffffff01882cc7c0 (pid 26689)
>         ino 263, on dev md0
> ------------
> 
> 	I've made available 2 ddb textdumps at:
> 
> http://people.freebsd.org/~lioux/panic/2010091900/textdump.tar.0
> http://people.freebsd.org/~lioux/panic/2010091900/textdump.tar.1
> 
> 	I was able to use chrome prior to this latest kernel update.
> Now, I can reproduce a kernel panic even browsing www.google.com
> 
> 	Please, let me know if I can provide any further information.

Does it panic if you remove ZERO_COPY_SOCKETS option from the kernel
config ?
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