Date: Fri, 16 Mar 2012 10:59:04 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r233028 - stable/9/sys/kern Message-ID: <201203161059.q2GAx4Ae014825@svn.freebsd.org>
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Author: kib Date: Fri Mar 16 10:59:04 2012 New Revision: 233028 URL: http://svn.freebsd.org/changeset/base/233028 Log: MFC r232947: Lock the process around manipulations with p_flag. Modified: stable/9/sys/kern/kern_exit.c Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/kern/kern_exit.c ============================================================================== --- stable/9/sys/kern/kern_exit.c Fri Mar 16 10:51:42 2012 (r233027) +++ stable/9/sys/kern/kern_exit.c Fri Mar 16 10:59:04 2012 (r233028) @@ -738,10 +738,12 @@ proc_reap(struct thread *td, struct proc LIST_REMOVE(p, p_list); /* off zombproc */ sx_xunlock(&allproc_lock); LIST_REMOVE(p, p_sibling); + PROC_LOCK(p); if (p->p_flag & P_ORPHAN) { LIST_REMOVE(p, p_orphan); p->p_flag &= ~P_ORPHAN; } + PROC_UNLOCK(p); leavepgrp(p); #ifdef PROCDESC if (p->p_procdesc != NULL)
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