Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 21 Mar 2014 09:11:04 +0200
From:      Daniel Braniss <danny@cs.huji.ac.il>
To:        Alexander Motin <mav@freebsd.org>
Cc:        Rick Macklem <rmacklem@uoguelph.ca>, freebsd-stable@freebsd.org, John Baldwin <jhb@freebsd.org>
Subject:   Re: nfsd panic
Message-ID:  <9E40826A-1850-467E-A7F7-A662063CE36E@cs.huji.ac.il>
In-Reply-To: <532B3FF7.1030405@FreeBSD.org>
References:  <50E659BE-3E1A-41D6-B522-9452093CEE26@cs.huji.ac.il> <201403201108.09700.jhb@freebsd.org> <532B3FF7.1030405@FreeBSD.org>

next in thread | previous in thread | raw e-mail | index | archive | help

On Mar 20, 2014, at 9:22 PM, Alexander Motin <mav@freebsd.org> wrote:

> On 20.03.2014 17:08, John Baldwin wrote:
>> On Thursday, March 20, 2014 8:35:37 am Daniel Braniss wrote:
>>> this host has been doing fine, but today it=92s constantly crashing =
in nfsd
>>> it=92s exporting a 32TB zfs via nfs, to several hungry hosts
>>> any help is appreciated since this is a production server and some =
user are
>>> not very happy :-)
>>>=20
>>> http://www.cs.huji.ac.il/~danny/core.txt.7
>>=20
>> I think the pool->sp_lock mutex is not locked.  Can you go to frame 8 =
in kgdb
>> and do 'p *m=92?

(kgdb) frame 8
#8  0xffffffff808cf25a in _mtx_unlock_sleep (m=3D0xfffffe002c132400,=20
    opts=3D<value optimized out>, file=3D<value optimized out>,=20
    line=3D<value optimized out>) at =
/r+d/stable/9/sys/kern/kern_mutex.c:716
716     /r+d/stable/9/sys/kern/kern_mutex.c: No such file or directory.
        in /r+d/stable/9/sys/kern/kern_mutex.c
(kgdb) p *m
$1 =3D {lock_object =3D {lo_name =3D 0xffffffff80f5d757 "sp_lock",=20
    lo_flags =3D 16973824, lo_data =3D 0, lo_witness =3D 0x0}, mtx_lock =
=3D 4}
>=20
> Daniel, your system looks like updated on February 2, but there was =
alike bug fixed in stable/9 on February 7 (r261578). Please try to =
update your system.
>=20
I did and now it=92s ok again - though will have to wait till traffic =
picks up again next week
thanks,
	danny

> --=20
> Alexander Motin

thanks to you all,
	danny




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?9E40826A-1850-467E-A7F7-A662063CE36E>