On 15 March 2011 11:56, Gleb Natapov<address@hidden> 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.