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Date:      Sun, 30 Jan 2011 21:41:57 +0300
From:      Chagin Dmitry <dchagin@freebsd.org>
To:        arundel@freebsd.org
Cc:        oleg.ginzburg@nevosoft.ru, freebsd-emulation@freebsd.org
Subject:   Re: kern/145024: [linux] kernel crash by linux.ko module with nooptions COMPAT_FREEBSD32
Message-ID:  <20110130184157.GA11074@dchagin.static.corbina.ru>
In-Reply-To: <201101301827.p0UIRrnk089915@freefall.freebsd.org>
References:  <201101301827.p0UIRrnk089915@freefall.freebsd.org>

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On Sun, Jan 30, 2011 at 06:27:53PM +0000, arundel@freebsd.org wrote:
> Old Synopsis: [linux] [panic] kernel crash by linux.ko module with noopti=
ons COMPAT_FREEBSD32
> New Synopsis: [linux] kernel crash by linux.ko module with nooptions COMP=
AT_FREEBSD32
>=20
> State-Changed-From-To: open->analyzed
> State-Changed-By: arundel
> State-Changed-When: Sun Jan 30 18:13:13 UTC 2011
> State-Changed-Why:=20
> We have two possibilities in order to fix this issue:
>=20
> 1) Add something like the following somewhere in sys/amd/linux32:
>=20
>    #ifndef COMPAT_FREEBSD32
>    #error "linux emulation requires COMPAT_FREEBSD32 \
> 	   option for non 32 bit architectures"
>    #endif
>=20
> 2) Find a way to avoid the freebsd32_exec_copyin_args() call in
>    linux32_machdep.c. I believe this is the only place in the sys/amd/lin=
ux32
>    code that depends on sys/amd64/ia32 code.
>=20
> NB: I've removed the panic tag from this PR. I was able to reproduce the =
issue,
>     however a panic didn't occur. The problem is that
>     freebsd32_exec_copyin_args() wasn't compiled into the kernel and load=
ing the
>     linux kernel module thus fails.
>=20

hi, close report, see r205014.

--=20
Have fun!
chd

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