"Hiroshi Inoue" <Inoue@tpf.co.jp> writes:
> Anyway I found some unexpected SIGALRM cases.
> It may be caused by a cygwin's bug but isn't it safer to
> return immediately from HandleDeadLock in any platform
> unless the backend is waiting for a lock ?
If we can't rely on the signal handling facilities to interrupt only
when they're supposed to, I think HandleDeadlock is the least of our
worries :-(. I'm not excited about inserting an ad-hoc test to work
around (only) one manifestation of a system-level bug.
regards, tom lane