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log: Log when kmsg is being ratelimited

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Let's avoid confusing developers and users when log messages suddenly
stop getting logged to kmsg because of ratelimiting by logging an
additional message if we start ratelimiting log messages to kmsg.
This commit is contained in:
Daan De Meyer 2023-04-20 10:43:21 +02:00
parent 8750a06b6c
commit 3fe07e9525
1 changed files with 6 additions and 2 deletions
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8
src/basic/log.c
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@ -553,8 +553,12 @@ static int write_to_kmsg(
if (kmsg_fd < 0)
return 0;
if (ratelimit_kmsg && !ratelimit_below(&ratelimit))
return 0;
if (ratelimit_kmsg && !ratelimit_below(&ratelimit)) {
if (ratelimit_num_dropped(&ratelimit) > 1)
return 0;
buffer = "Too many messages being logged to kmsg, ignoring";
}
xsprintf(header_priority, "<%i>", level);
xsprintf(header_pid, "["PID_FMT"]: ", getpid_cached());