[Bug 262273] Subsuquent Calls to clock_gettime(CLOCK_THREAD_CPUTIME_ID,... ) return time in the past

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 17 Mar 2022 19:40:47 UTC

--- Comment #13 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:


commit 28d08dc7d051a4e058cc0004cf4dd884f87037a2
Author:     firk <firk@cantconnect.ru>
AuthorDate: 2022-03-15 22:22:21 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2022-03-17 19:39:00 +0000

    clock_gettime: Fix CLOCK_THREAD_CPUTIME_ID race

    Use a spinlock section instead of a critical section to synchronize with
    statclock().  Otherwise the CLOCK_THREAD_CPUTIME_ID clock can appear to
    go backwards.

    PR:             262273
    Reviewed by:    markj
    MFC after:      1 week
    Differential Revision:  https://reviews.freebsd.org/D34568

 sys/kern/kern_time.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

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