| commit | e2cd73a2ccabe8acae28719a0c3c1c03f2b5f9fb | |
| author | Florian Weimer <fweimer@redhat.com> | |
| Fri, 13 May 2016 14:55:01 +0000 (13 16:55 +0200) | ||
| committer | Florian Weimer <fweimer@redhat.com> | |
| Fri, 13 May 2016 18:43:14 +0000 (13 20:43 +0200) | ||
| tree | aef0595da097dc402f27a64dde84f3713f9ee510 | treesnapshot (tar.gz zip) |
| parent | fdbdbc83a53cfee6edff9f737e188a56925f1db1 | commitdiff |
tst-mallocfork2: Fix race condition, use fewer resources
The first SIGUSR1 signal could arrive when sigusr1_sender_pid
was still 0. As a result, kill would send SIGSTOP to the
entire process group. This would cause the test to hang before
printing any output.
This commit also adds a sched_yield to the signal source, so that
it does not flood the parent process with signals it has never a
chance to handle.
Even with these changes, tst-mallocfork2 still fails reliably
after the fix in commit commit 56290d6e762c1194547e73ff0b948cd79d3a1e03
(Increase fork signal safety for single-threaded processes) is
backed out.
The first SIGUSR1 signal could arrive when sigusr1_sender_pid
was still 0. As a result, kill would send SIGSTOP to the
entire process group. This would cause the test to hang before
printing any output.
This commit also adds a sched_yield to the signal source, so that
it does not flood the parent process with signals it has never a
chance to handle.
Even with these changes, tst-mallocfork2 still fails reliably
after the fix in commit commit 56290d6e762c1194547e73ff0b948cd79d3a1e03
(Increase fork signal safety for single-threaded processes) is
backed out.
| ChangeLog | diffblobblamehistory | |
| malloc/tst-mallocfork2.c | diffblobblamehistory |