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

[jhell]

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

On 09/22/2010 09:28, Kostik Belousov wrote:
> 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 ?

This is triggered as well on a system without ZERO_COPY_SOCKETS just to
clear that bit up.

Kostik,

I am going to forward you two core.txt.NN files I had generated on a ZFS
system that I used chrome on as well. I can trigger this repeatedly from
20-30 minutes of using chrome. Not sure whats going on here but maybe
you can shed some light over both issues that seem to be the same thing.
I do not mind if you forward these core.txt.NN files to other devs that
may be interested and able to help.

I still have the kernels for both of these so if more information is
needed just let me know.


Regards,

- -- 

 jhell,v
-----BEGIN PGP SIGNATURE-----

iQEcBAEBAgAGBQJMml/UAAoJEJBXh4mJ2FR+EkIH/j9lfSg1ZTMtn4vRgybvd+3F
0Sy88IgvltQmIicEaQ4MbQ9IpO/owsc362UexQvnbx38zVLRivfJYsDefAmG6Dex
OVRuewzJzgr3YWv89t4OxZgWNcsyTFVZCLavCuGiUzbw52m83klc3Fubr0+wXI1G
OtIEsaIFqaGHvgVSvGKlHLiv2/Q93bZ1kWCCHdHM3l4QIPG9ARuRR08bOVDQK0Xd
GhMUVXfvV7fOF1cwzecQ5+AP4UDaExA3JRrkYf7IC8KkFgATbdA3RLbxypkkOf75
XVqBFmqjAQfIPc8vUvVd9WmC1tNfqJzJPQ3kl3B3HHs2K3g/BoZpeaUEGacXJ8o=
=FyGm
-----END PGP SIGNATURE-----