On Fri, Feb 24, 2023 at 01:25:01PM +1300, Thomas Munro wrote:
> I think you should have a trailing \n when writing to stderr.
Oops. I added that in v7.
> Here's that reproducer I speculated about (sorry I confused SIGQUIT
> and SIGTERM in my earlier email, ENOCOFFEE). Seems to do the job, and
> I tested on a Linux box for good measure. If you comment out the
> kill(), "check PROVE_TESTS=t/002_archiving.pl" works fine
> (demonstrating that that definition of system() works fine). With the
> kill(), it reliably reaches 'TRAP: failed Assert("latch->owner_pid ==
> MyProcPid")' without your patch, and with your patch it avoids it. (I
> believe glibc's system() could reach it too with the right timing, but
> I didn't try, my point being that the use of the OpenBSD system() here
> is only because it's easier to grok and to wrangle.)
Thanks for providing the reproducer! I am seeing the behavior that you
described on my Linux machine.
--
Nathan Bossart
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