Re: [HACKERS] stuck spin lock with many concurrent users

[Tom Lane]

Tatsuo Ishii <[EMAIL PROTECTED]> writes:
> I got an interesting result. If I compile backend with -g (and without
> -O2), I get no stuck spin lock errors. However, if s_lock.c is
> compiled with -O2 enabled, I got the error again. It seems only
> s_lock.c is related to this phenomenon.

That's very interesting.  Could optimization be breaking the TAS
sequence on your platform?  What is your platform, anyway?
Might need to burrow into the assembly code to see just what's
happening.

                        regards, tom lane

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