On 15 March 2011 11:56, Gleb Natapov <g...@redhat.com> wrote:
> Currently when rogue script kills QEMU process (using TERM/INT/HUP
> signal) it looks indistinguishable from system shutdown. Lets report
> that QEMU was killed and leave some clues about the killer identity.
Unfortunately this patch causes qemu to segfault when killed
via ^C (at least on my Ubuntu maverick system). This is because
it registers a signal handler with sigaction, but then later
the SDL library is initialised and it reinstalls our handler
with plain old signal:
ohandler = signal(SIGINT, SDL_HandleSIG);
if ( ohandler != SIG_DFL )
signal(SIGINT, ohandler);
This is clearly buggy but on the other hand SDL is pretty widely
deployed and it's the default QEMU video output method, so I think
we need to work around it :-(
The most straightforward fix is to get the signal number from
argument one and not to bother printing the PID that killed us.
-- PMM
