Date: Wed, 8 Aug 2018 17:49:35 +0000 (UTC) From: Bryan Drewery <bdrewery@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r337471 - stable/10/sys/kern Message-ID: <201808081749.w78HnZi4008372@repo.freebsd.org>
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Author: bdrewery Date: Wed Aug 8 17:49:35 2018 New Revision: 337471 URL: https://svnweb.freebsd.org/changeset/base/337471 Log: MFC r335183: proc0_post: Fix some locking issues Modified: stable/10/sys/kern/init_main.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/kern/init_main.c ============================================================================== --- stable/10/sys/kern/init_main.c Wed Aug 8 17:48:02 2018 (r337470) +++ stable/10/sys/kern/init_main.c Wed Aug 8 17:49:35 2018 (r337471) @@ -611,17 +611,23 @@ proc0_post(void *dummy __unused) */ sx_slock(&allproc_lock); FOREACH_PROC_IN_SYSTEM(p) { + PROC_LOCK(p); + if (p->p_state == PRS_NEW) { + PROC_UNLOCK(p); + continue; + } microuptime(&p->p_stats->p_start); PROC_STATLOCK(p); rufetch(p, &ru); /* Clears thread stats */ - PROC_STATUNLOCK(p); p->p_rux.rux_runtime = 0; p->p_rux.rux_uticks = 0; p->p_rux.rux_sticks = 0; p->p_rux.rux_iticks = 0; + PROC_STATUNLOCK(p); FOREACH_THREAD_IN_PROC(p, td) { td->td_runtime = 0; } + PROC_UNLOCK(p); } sx_sunlock(&allproc_lock); PCPU_SET(switchtime, cpu_ticks());
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