[Perl/perl5] b9d062: threads::shared: remove problematic err.t test

  Branch: refs/heads/davem/thread_races
  Home:   https://github.com/Perl/perl5
  Commit: b9d06266741dfc15d0d8706f412be62f270b82b1
      https://github.com/Perl/perl5/commit/b9d06266741dfc15d0d8706f412be62f270b82b1
  Author: David Mitchell <[email protected]>
  Date:   2026-05-25 (Mon, 25 May 2026)

  Changed paths:
    M dist/threads-shared/t/err.t

  Log Message:
  -----------
  threads::shared: remove problematic err.t test

This test checks that a warning is issued when two threads call
cond_wait() for the same condition var, but with different locks.

The problem is that shared.xs then calls the underlying OS's cond_wait()
functions with similarly bad values, triggering undefined behaviour. On
some platforms this caused pthreads_cond_wait() to return an error code,
triggering a panic and deadlock.

So just remove the test.


  Commit: 4ecaf497a63c6785d84b62ed8d37965d5f5b90cd
      https://github.com/Perl/perl5/commit/4ecaf497a63c6785d84b62ed8d37965d5f5b90cd
  Author: David Mitchell <[email protected]>
  Date:   2026-05-25 (Mon, 25 May 2026)

  Changed paths:
    M dist/threads/threads.xs

  Log Message:
  -----------
  threads.xs: remove unneeded locking

After some refactoring, there was a vestigial piece of locking around
a PerlMemShared_malloc() call in S_ithread_create(). Remove it, since
its unnecessary now.


Compare: https://github.com/Perl/perl5/compare/19dbad971aa2...4ecaf497a63c

To unsubscribe from these emails, change your notification settings at https://github.com/Perl/perl5/settings/notifications