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In-Reply-To: <200401131730.i0DHUMhg002358@ccure.user-mode-linux.org>
From: Bill Allombert <allomber@math.u-bordeaux.fr>
Subject: [uml-devel] Re: Panic with slirp transport and gcc 3.3
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Date: Tue, 13 Jan 2004 18:44:09 +0100
To: Jeff Dike <jdike@addtoit.com>
Cc: user-mode-linux-devel@lists.sourceforge.net, 176485@bugs.debian.org, mdz@debian.org

On Tue, Jan 13, 2004 at 12:30:22PM -0500, Jeff Dike wrote:
> allomber@math.u-bordeaux.fr said:
> >  Kernel panic: Segfault with no mm
> > Without the eth0=slirp parameter, there are no kernel panic. 
> 
> Can someone get a stack trace from this?

Here what I get:

NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.

Program received signal SIGSEGV, Segmentation fault.
walk_init_root (name=0xf4a33ee8 <Address 0xf4a33ee8 out of bounds>,
    nd=0xa08f7b74) at atomic.h:107
107             __asm__ __volatile__(
(gdb) bt
#0  walk_init_root (name=0xf4a33ee8 <Address 0xf4a33ee8 out of bounds>,
    nd=0xa08f7b74) at atomic.h:107
(gdb) c
Continuing.

Breakpoint 1, segv (address=4104339216, ip=2685837537, is_write=2, is_user=0,
    sc=0xf4a33f10) at trap_kern.c:124
124             if(!is_user && (address >= start_vm) && (address < end_vm)){
(gdb) bt
#0  segv (address=4104339216, ip=2685837537, is_write=2, is_user=0,
    sc=0xf4a33f10) at trap_kern.c:124
(gdb) bt
#0  segv (address=4104339216, ip=2685837537, is_write=2, is_user=0,
    sc=0xf4a33f10) at trap_kern.c:124
(gdb) c
Continuing.

Breakpoint 2, panic (fmt=0xa08f4000 "") at panic.c:58
58              machine_paniced = 1;
(gdb) bt
#0  panic (fmt=0xa08f4000 "") at panic.c:58
(gdb) c
Continuing.
Kernel panic: Segfault with no mm


Program exited normally.

Cheers,
-- 
Bill. <ballombe@debian.org>

Imagine a large red swirl here. 


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