[linux-audio-dev] Signals and Threads

Howdy, list: Does a signal handler (like segfault, or divide by zero) run at the priority of the thread that it gets generated for? Say thread 1 is normal prio and thread 2 is SCHED_RR thread. In normal operation thread 1 can't interrupt or supersede thread 2. Does this hold if, say, thread 1 gets a SEGV signal? Does its handler wait until thread 2 is not running to do its thing? And does it get interrupted if thread 2 wakes up while the handler is working? It would seem that signal handlers use a threads priority, from scanning the web and docs, given that threads have their own signal masks and handlers. But perhaps one of you knows this stuff off the top of your head? I want to improve how our system reacts to a crash, but I'm concerned that the real time audio processing thread will keep the signal handler from reacting promptly. I'm running Linux kernel 2.4.19 with glibc 2.3.2 which provides the libpthread implementation we use to create threads. Thanks in advance for any help... mo ========================= Michael Ost, Software Architect Muse Research, Inc. most(a)museresearch.com PS: moderator, I tried to remove a similar message sent from another email account, but the 'remove' code didn't work.