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Re: uxterm from xterm-185-3 and xfontsel crashing when runningunder cygserver support
>>>>> "Corinna" == Corinna Vinschen writes:
Corinna> I've build my own debug version of the X stuff today and I tracked the
Corinna> SEGV down. It's an unfortunate combination of two bugs in the SHM
Corinna> implementation:
Corinna> - shmat() returns NULL on error instead of (void *)-1.
Corinna> - shmat() only operates on shared memory segments of which the shmid
Corinna> has been retrieved using shmget() by the application itself. I was
Corinna> absolutely sure that only the key argument to shmget() is a valid
Corinna> interprocess exchange value for identifying shared memory segments.
Corinna> I wasn't aware that the shmid itself could be exchanged.
Corinna> For today, I only fixed the first bug. This fixes the SEGV in uxterm
Corinna> and friends, but a fix for the second bug is necessary to get a working
Corinna> Bigfont extension. I hope to get this done next week.
I just tried your fix which seems to be in the 20040329 snapshot. But
now /usr/sbin/cygserver doesn't start anymore. I installed it as a
service with cygrunsrv. The same happens for my other cygwin service
/sbin/init which also refuses to start. In the process list I could see
4 !! /bin/cygrunsrv processes so. Reverting to 1.5.9 and all is fine.
Corinna> Corinna
Ciao
Volker