Date: Wed, 25 Mar 2026 00:52:10 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 294035] ctld can accumulate zombie children Message-ID: <bug-294035-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294035 Bug ID: 294035 Summary: ctld can accumulate zombie children Product: Base System Version: 15.0-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: ndenev@gmail.com `ctld` can leave exited child processes in `<defunct>` state for a long time even though the parent daemon remains alive and continues listening for new connections. It appears the SIGCHLD interrupts the kevent() but not the outer loop where the child reaping happens, they can accumulate. This can be reproduced by connecting to any port where ctld is listening, e.g. nvmeof discovery or iscsi. I believe this should fix the issue by returning from main_loop() and having wait_for_children() run: ``` diff --git a/usr.sbin/ctld/ctld.cc b/usr.sbin/ctld/ctld.cc index 331c029e28..a6c80a3604 100644 --- a/usr.sbin/ctld/ctld.cc +++ b/usr.sbin/ctld/ctld.cc @@ -2418,7 +2418,7 @@ main_loop(bool dont_fork) error = kevent(kqfd, NULL, 0, &kev, 1, NULL); if (error == -1) { if (errno == EINTR) - continue; + return; log_err(1, "kevent"); } ``` -- You are receiving this mail because: You are the assignee for the bug.home | help
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