13 Aug
2002
13 Aug
'02
6:40 a.m.
My best guess is that the use of signal() is incompatible with the POSIX sigaction() used by the RTS.
That's possible I guess. Could you try using sigaction() instead?
No change in behaviour. Is it possible that ghc's scheduler might be re-installing signal handlers throughout the computation whenever it has control? For instance, if threads are allocated fixed processor time via the VTALRM signal, maybe when the alarm timer is restored? I had a quick look at ghc/rtc/Itimer.c, but this hypothesis doesn't look very likely. Regards, Malcolm