BUG/MEDIUM: wdt: don't trigger the watchdog when p is unitialized
In wdt_handler(), does not try to trigger the watchdog if the
prev_cpu_time wasn't initialized.
This prevents an unexpected trigger of the watchdog when it wasn't
initialized yet. This case could happen in the master just after loading
the configuration. This would show a trace where the <diff> value is equal
to the <now> value in the trace, and the <poll> value would be 0.
For example:
Thread 1 is about to kill the process.
*>Thread 1 : id=0x0 act=1 glob=1 wq=0 rq=0 tl=0 tlsz=0 rqsz=0
stuck=1 prof=0 harmless=0 wantrdv=0
cpu_ns: poll=0 now=6005541706 diff=6005541706
curr_task=0
Thanks to Christian Ruppert for repporting the problem.
Could be backported in every stable versions.
(cherry picked from commit ae053b30da4db588f7fabe09e5f85cbebdc421ad)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 3524ff934ced972f41bde74580b6ea94f1e94bc8)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
1 file changed