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Date: Thu, 22 Nov 2012 10:27:40 +0100
From: Stefan Hajnoczi <stefanha@gmail.com>
Message-ID: <20121122092740.GE7598@stefanha-thinkpad.redhat.com>
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Subject: Re: [Qemu-devel] [Bug 1081416] [NEW] Qemu 1.2.0 crashes when using
 tcp serial console	and GRUB boots
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To: Bug 1081416 <1081416@bugs.launchpad.net>
Cc: qemu-devel@nongnu.org

On Wed, Nov 21, 2012 at 03:14:28AM -0000, Jérôme Poulin wrote:
> When booting OpenWRT Attitude Adjustement ( http://downloads.openwrt.org/attitude_adjustment/12.09-beta2/x86/generic/openwrt-x86-generic-combined-ext4.img.gz ) with this command line:
> qemu-system-x86_64 -serial tcp:127.0.0.1:4444 -hda openwrt-x86-generic-combined-ext4.img
> 
> Qemu crashes as soon as GRUB starts, after network cards start.
[...]
> Program received signal SIGABRT, Aborted.
> 0x00007ffff452bfa5 in raise () from /usr/lib/libc.so.6
> (gdb) bt
> #0  0x00007ffff452bfa5 in raise () from /usr/lib/libc.so.6
> #1  0x00007ffff452d428 in abort () from /usr/lib/libc.so.6
> #2  0x00007ffff456acfb in __libc_message () from /usr/lib/libc.so.6
> #3  0x00007ffff45f2ad7 in __fortify_fail () from /usr/lib/libc.so.6
> #4  0x00007ffff45f0bb0 in __chk_fail () from /usr/lib/libc.so.6
> #5  0x00007ffff45f2a47 in __fdelt_warn () from /usr/lib/libc.so.6
> #6  0x000000000046a628 in qemu_iohandler_poll (readfds=0xdb7da0 <rfds>, 
>     writefds=0xdb7e20 <wfds>, xfds=0x6, xfds@entry=0xdb7ea0 <xfds>, ret=-1, 
>     ret@entry=1) at iohandler.c:121
> #7  0x00000000004e8a14 in main_loop_wait (nonblocking=<optimized out>)
>     at main-loop.c:497
> #8  0x00000000004e802b in main_loop ()
>     at /usr/src/aur/qemu/src/qemu-1.2.0/vl.c:1643
> #9  main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>)
>     at /usr/src/aur/qemu/src/qemu-1.2.0/vl.c:3755

Can't reproduce on qemu.git/master (1ccbc2851282564308f790753d7158487b6af8e2) or
qemu-system-x86-1.2.0-23.fc18.x86_64.

I get to the OpenWRT root prompt.

Please build qemu.git/master from source to verify whether this issue
still exists:

  $ git clone git://git.qemu-project.org/qemu.git
  $ cd qemu
  $ ./configure --target-list=x86_64-softmmu && make
  $ x86_64-softmmu/qemu-system-x86_64 -serial tcp:127.0.0.1:4444 -hda openwrt-x86-generic-combined-ext4.img

Note that if you want to connect to the serial port you should use
-serial tcp:127.0.0.1:4444,server.  The command-line you specified tries
to connect to 127.0.0.1:4444 as a client instead of listening as a
server.

Thanks,
Stefan