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Date:      Mon, 25 Mar 2013 09:04:40 +0100
From:      =?ISO-8859-1?Q?Bernhard_Fr=F6hlich?= <decke@FreeBSD.org>
To:        Ivan Klymenko <fidaj@ukr.net>
Cc:        Konstantin Belousov <kostikbel@gmail.com>, freebsd-current@freebsd.org, freebsd-ports@freebsd.org
Subject:   Re: Kernel panic CURRENT r248596 at virtualbox-ose-kmod module load
Message-ID:  <CAE-m3X1LooGSXgrcuiKu_etKO1EQqJO%2BGU%2Bdm7ob5KfpKOTn0w@mail.gmail.com>
In-Reply-To: <20130325020340.02c5ace0@nonamehost>
References:  <20130323132627.04bf7ef4@nonamehost> <20130324120507.GX3794@kib.kiev.ua> <20130325020340.02c5ace0@nonamehost>

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On Mon, Mar 25, 2013 at 1:03 AM, Ivan Klymenko <fidaj@ukr.net> wrote:
> =D0=92 Sun, 24 Mar 2013 14:05:07 +0200
> Konstantin Belousov <kostikbel@gmail.com> =D0=BF=D0=B8=D1=88=D0=B5=D1=82:
>
>> On Sat, Mar 23, 2013 at 01:26:27PM +0200, Ivan Klymenko wrote:
>> > I have
>> > uname -a
>> > FreeBSD nonamehost 10.0-CURRENT FreeBSD 10.0-CURRENT #0 r248596: Fri
>> > Mar 22 01:17:08 EET 2013
>> > ivan@nonamehost:/usr/obj/usr/src/sys/GENERIC  amd64
>> >
>> > I updated the ports tree to r314921 and recompiled
>> > virtualbox-ose-kmod
>> >
>> > After load the module a have kernel panic.
>> >
>> > Panic  String:  Lock  vm  object  not  exclusively   locked   @
>> > /usr/src/sys/vm/vm_page.c:1396
>> >
>> > http://pkgupdate.nevosoft.ru/backtrace.txt
>>
>> This looks like a vbox issue, the driver did not properly locked
>> the object passed to the vm_page_alloc_contig().
>>
>> If you want this fixed, you probably need to look up the code
>> yourself, compiling the vbox kld with debugging, finding the
>> offending call to vm_page_alloc_contig() and looking around it to see
>> which object is passed and why it is not locked.
>
> The problem is that port commiter did not listen your advice:
> http://docs.freebsd.org/cgi/mid.cgi?20130312151751.GJ3794
>
> and used in the patch is not the functions that need
> http://svnweb.freebsd.org/ports/head/emulators/virtualbox-ose-kmod/files/=
patch-src-VBox-Runtime-r0drv-freebsd-memobj-r0drv-freebsd_VM_OBJECT_RENAME.=
c?r1=3D314794&r2=3D314796
>
> I replaced the all function "VM_OBJECT_RLOCK" on "VM_OBJECT_WLOCK"
> and
> "VM_OBJECT_RUNLOCK" on "VM_OBJECT_WUNLOCK"
>
> and the kernel panic ceased.
>
> Thanks. This problem is solved.

Thanks a lot! I've fixed it in the port now. Would be great if you could ve=
rify
that it's correct now.

--=20
Bernhard Froehlich
http://www.bluelife.at/



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