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Date:      Mon, 8 Aug 2011 20:06:54 +0200
From:      Tom Vijlbrief <tom.vijlbrief@xs4all.nl>
To:        Sergey Kandaurov <pluknet@gmail.com>
Cc:        FreeBSD Net <freebsd-net@freebsd.org>, freebsd-current@freebsd.org
Subject:   Re: BETA1 IPv6 crash
Message-ID:  <CAOQrpVf7bATyWmWRF0Cnwk_KWPygbSFXCSP6ZtGtkSL0czRGag@mail.gmail.com>
In-Reply-To: <CAE-mSOK3ZD92NG6DqzmZ_pdK0KoUZoN_s9c-iToa1XQ4vaBfFQ@mail.gmail.com>
References:  <CAOQrpVdkqYm22jjgdOiu9f7GrALfrjCuY-VfYBibvF4Lb9m-=Q@mail.gmail.com> <CAE-mSOK3ZD92NG6DqzmZ_pdK0KoUZoN_s9c-iToa1XQ4vaBfFQ@mail.gmail.com>

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2011/8/7 Sergey Kandaurov <pluknet@gmail.com>:
> On 7 August 2011 17:11, Tom Vijlbrief <tom.vijlbrief@xs4all.nl> wrote:
>> I installed BETA1 in a fresh ubuntu 11.04 KVM virtual machine with the
>> new installer.
>>
>> Major issue I noticed was the missing /home.
>>
>> It took me quite some time to get IPv6 working in the guest (a Linux
>> configuration issue), but now that it works
>> BETA1 panics in about 50% of the boot attempts:
>>
>> testbsd dumped core - see /var/crash/vmcore.0
>>
>> Sun Aug =A07 08:25:28 CEST 2011
>>
>> FreeBSD testbsd 9.0-BETA1 FreeBSD 9.0-BETA1 #0: Thu Jul 28 16:34:16
>> UTC 2011 =A0 =A0 root@obrian.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERI=
C
>> i386
>>
>> panic: _mtx_lock_sleep: recursed on non-recursive mutex if_addr_mtx @
>> /usr/src/sys/netinet6/mld6.c:1676
>>
>> GNU gdb 6.1.1 [FreeBSD]
>> Copyright 2004 Free Software Foundation, Inc.
>> GDB is free software, covered by the GNU General Public License, and you=
 are
>> welcome to change it and/or distribute copies of it under certain condit=
ions.
>> Type "show copying" to see the conditions.
>> There is absolutely no warranty for GDB. =A0Type "show warranty" for det=
ails.
>> This GDB was configured as "i386-marcel-freebsd"...
> [..]
>> panic: _mtx_lock_sleep: recursed on non-recursive mutex if_addr_mtx @
>> /usr/src/sys/netinet6/mld6.c:1676
>>
>> cpuid =3D 0
>> KDB: enter: panic
>> Uptime: 28s
>> Physical memory: 491 MB
>> Dumping 45 MB: 30 14
>>
>> #0 =A0doadump (textdump=3D1) at pcpu.h:244
>> 244 =A0 =A0 pcpu.h: No such file or directory.
>> =A0 =A0 =A0 =A0in pcpu.h
>> (kgdb) #0 =A0doadump (textdump=3D1) at pcpu.h:244
>> #1 =A00xc0a04965 in kern_reboot (howto=3D260)
>> =A0 =A0at /usr/src/sys/kern/kern_shutdown.c:430
>> #2 =A00xc0a04291 in panic (fmt=3DVariable "fmt" is not available.
>> ) at /usr/src/sys/kern/kern_shutdown.c:595
>> #3 =A00xc09f4a4a in _mtx_lock_sleep (m=3D0xc35f3a28, tid=3D3278693824, o=
pts=3D0,
>> =A0 =A0file=3D0xc0f1ab65 "/usr/src/sys/netinet6/mld6.c", line=3D1676)
>> =A0 =A0at /usr/src/sys/kern/kern_mutex.c:341
>> #4 =A00xc09f4c67 in _mtx_lock_flags (m=3D0xc35f3a28, opts=3D0,
>> =A0 =A0file=3D0xc0f1ab65 "/usr/src/sys/netinet6/mld6.c", line=3D1676)
>> =A0 =A0at /usr/src/sys/kern/kern_mutex.c:203
>> #5 =A00xc0bbf007 in mld_set_version (mli=3D0xc3589a00, version=3DVariabl=
e
>> "version" is not available.
>> )
>> =A0 =A0at /usr/src/sys/netinet6/mld6.c:1676
>> #6 =A00xc0bc0c00 in mld_input (m=3D0xc3951e00, off=3D48, icmp6len=3D24)
>> =A0 =A0at /usr/src/sys/netinet6/mld6.c:690
>> #7 =A00xc0ba5696 in icmp6_input (mp=3D0xc3313a54, offp=3D0xc3313a68, pro=
to=3D58)
>> =A0 =A0at /usr/src/sys/netinet6/icmp6.c:654
>> #8 =A00xc0bba23a in ip6_input (m=3D0xc3951e00)
>> =A0 =A0at /usr/src/sys/netinet6/ip6_input.c:964
>> #9 =A00xc0ac9b1c in netisr_dispatch_src (proto=3D10, source=3D0, m=3D0xc=
3951e00)
>> =A0 =A0at /usr/src/sys/net/netisr.c:1013
>> #10 0xc0ac9da0 in netisr_dispatch (proto=3D10, m=3D0xc3951e00)
>> =A0 =A0at /usr/src/sys/net/netisr.c:1104
>> #11 0xc0abecf1 in ether_demux (ifp=3D0xc35f3800, m=3D0xc3951e00)
>> =A0 =A0at /usr/src/sys/net/if_ethersubr.c:936
>> #12 0xc0abf1b3 in ether_nh_input (m=3D0xc3951e00)
>> =A0 =A0at /usr/src/sys/net/if_ethersubr.c:755
>> #13 0xc0ac9b1c in netisr_dispatch_src (proto=3D9, source=3D0, m=3D0xc395=
1e00)
>> =A0 =A0at /usr/src/sys/net/netisr.c:1013
>> #14 0xc0ac9da0 in netisr_dispatch (proto=3D9, m=3D0xc3951e00)
>> =A0 =A0at /usr/src/sys/net/netisr.c:1104
>> #15 0xc0abe7f5 in ether_input (ifp=3D0xc35f3800, m=3D0xc3951e00)
>> =A0 =A0at /usr/src/sys/net/if_ethersubr.c:796
>> #16 0xc0672bc9 in lem_handle_rxtx (context=3D0xc3732000, pending=3D1)
>> =A0 =A0at /usr/src/sys/dev/e1000/if_lem.c:3554
>> #17 0xc0a468ab in taskqueue_run_locked (queue=3D0xc359ca80)
>> =A0 =A0at /usr/src/sys/kern/subr_taskqueue.c:306
>> #18 0xc0a47307 in taskqueue_thread_loop (arg=3D0xc37365ec)
>> =A0 =A0at /usr/src/sys/kern/subr_taskqueue.c:495
>> #19 0xc09d7af8 in fork_exit (callout=3D0xc0a472a0 <taskqueue_thread_loop=
>,
>> =A0 =A0arg=3D0xc37365ec, frame=3D0xc3313d28) at /usr/src/sys/kern/kern_f=
ork.c:941
>> #20 0xc0d1d714 in fork_trampoline () at /usr/src/sys/i386/i386/exception=
.s:275
>> (kgdb)
>>
>
> This is the same as in PR kern/158426.
> Can you try the patch from PR followup and report us whether it helps?
> Full link to PR with patch:
> http://www.freebsd.org/cgi/query-pr.cgi?pr=3Dkern/158426
>
> --
> wbr,
> pluknet
>
>

I applied the patch and tried about 15 reboots and all went fine....



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