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systemd
_service:tar_scm:disable-initialize_clock.patch
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File _service:tar_scm:disable-initialize_clock.patch of Package systemd
From fbd28b3b40701f1fda29707dfa09d1e481c4162c Mon Sep 17 00:00:00 2001 From: hexiaowen<hexiaowen@huawei.com> Date: Tue, 9 Jul 2019 19:13:43 +0800 Subject: [PATCH] delete clock_apply_epoch resolved: apply epoch to system time from PID 1 For use in timesyncd we already defined a compile-time "epoch" value, which is based on the mtime of the NEWS file, and specifies a point in time we know lies in the past at runtime. timesyncd uses this to filter out nonsensical timestamp file data, and bump the system clock to a time that is after the build time of systemd. This patch adds similar bumping code to earliest PID 1 initialization, so that the system never continues operation with a clock that is in the 1970ies or even 1930s. we think it is ok when current system time is before build time. And, don't restore time when systemd-timesyncd started. --- src/core/main.c | 5 ----- src/timesync/timesyncd.c | 12 ------------ 2 files changed, 17 deletions(-) diff --git a/src/core/main.c b/src/core/main.c index a114257..bac746f 100644 --- a/src/core/main.c +++ b/src/core/main.c @@ -1473,11 +1473,6 @@ static void initialize_clock(void) { */ (void) clock_reset_timewarp(); - r = clock_apply_epoch(); - if (r < 0) - log_error_errno(r, "Current system time is before build time, but cannot correct: %m"); - else if (r > 0) - log_info("System time before build time, advancing clock."); } static void apply_clock_update(void) { diff --git a/src/timesync/timesyncd.c b/src/timesync/timesyncd.c index e56e09c..028e5d6 100644 --- a/src/timesync/timesyncd.c +++ b/src/timesync/timesyncd.c @@ -73,18 +73,6 @@ static int load_clock_timestamp(uid_t uid, gid_t gid) { } settime: - ct = now(CLOCK_REALTIME); - if (ct < min) { - struct timespec ts; - char date[FORMAT_TIMESTAMP_MAX]; - - log_info("System clock time unset or jumped backwards, restoring from recorded timestamp: %s", - format_timestamp(date, sizeof(date), min)); - - if (clock_settime(CLOCK_REALTIME, timespec_store(&ts, min)) < 0) - log_error_errno(errno, "Failed to restore system clock, ignoring: %m"); - } - return 0; } -- 2.23.0
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