Re: [Qemu-devel] [Bug 1423124] [NEW] QEMU crash after sending data on host serial port

[Stefan Hajnoczi]

On Wed, Feb 18, 2015 at 11:29:58AM -0000, Ugo wrote:
> I'm using QEMU for Windows last version.
> The host system is Windows 7 64bits.
> I'm excuting the following statment :
> 
> qemu-system-x86_64w.exe -hda debian.img -m 256 -net nic -net
> tap,ifname=TAP32 -soundhw all -serial COM9
> 
> Qemu starts the emulated Debian and it runs correctly.
> 
> If I try to send data from Windows using COM9 to QEMU (both "real" or 
> emulated by the COM0COM driver), QEMU crashes. Windows dump available if 
> required.
> If I try to send data to /dev/ttyS0 (that should be the Linux side of COM9) 
> from Debian, again, the wirtual machine crashes.

Please post details of the crash including the backtrace.  That might be
enough information for someone to figure out the problem and send a
patch to fix it.

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