Date: Mon, 20 Jul 2026 02:00:31 +0000 From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: b328975b9d7c - main - procdesc: report NOTE_PDSIGCHLD for traced and stopped process Message-ID: <6a5d813f.4468e.816c82d@gitrepo.freebsd.org>
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The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=b328975b9d7c475cd99107ca407df04366cc38af commit b328975b9d7c475cd99107ca407df04366cc38af Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2026-07-18 17:31:31 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2026-07-20 02:00:02 +0000 procdesc: report NOTE_PDSIGCHLD for traced and stopped process on attach of the knote. It is same as for NOTE_EXIT when attaching to the exiting process. Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D58327 --- sys/kern/sys_procdesc.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/sys/kern/sys_procdesc.c b/sys/kern/sys_procdesc.c index fd4b660d6afa..94c2df4b1e69 100644 --- a/sys/kern/sys_procdesc.c +++ b/sys/kern/sys_procdesc.c @@ -493,16 +493,25 @@ static int procdesc_kqops_event(struct knote *kn, long hint) { struct procdesc *pd; + struct proc *p; u_int event; pd = kn->kn_fp->f_data; if (hint == 0) { /* * Initial test after registration. Generate notes in - * case the process already terminated before registration. + * case the process already terminated before + * registration, or is stopped, or traced, with an event + * pending. */ - event = (pd->pd_flags & PDF_EXITED) != 0 ? (NOTE_EXIT | - NOTE_PDSIGCHLD) : 0; + p = pd->pd_proc; + if ((pd->pd_flags & PDF_EXITED) != 0) + event = NOTE_EXIT | NOTE_PDSIGCHLD; + else if ((atomic_load_int(&p->p_flag) & (P_STOPPED_SIG | + P_STOPPED_TRACE)) != 0) + event = NOTE_PDSIGCHLD; + else + event = 0; } else { /* Mask off extra data. */ event = (u_int)hint & NOTE_PCTRLMASK;home | help
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