boot time in system check reported as 1 January 1970 in Linux (SLES11)

[Ulrich Windl]

In the output of "monit status host.domain.org" the monit uptime is reported correctly, and the service is running, but the boot time is reported as Thu, 01 Jan 1970 01:00:00 "monit -Iv" reports a "System statistic error -- cannot get system boot time"

The system is running SLES11 SP4 (current kernel is 3.0.101-77-xen). I checked that /proc/stat has a "btime" entry, but the system has more than 200 interrupts defined, so the line before ("intr") has more than 5300 characters.

In init_process_info_sysdep() the local buffer is just 4kB. So I'd suggest to either increase the buffer size, or to switch to a line-wise processing of the file.

For debugging-ease I'm attaching a copy of /proc/stat.

[Ulrich Windl]

An alternate approach to get the boot time seems to subtract the first number from /proc/uptime from the current time. Proof of concept: date -d @$(($(date +%s) - $(awk '{ print int($1) }' /proc/uptime)))

[Tildeslash]

I believe this is also fixed as part of #379.

[Ulrich Windl]

Doubling the said buffer size also fixed issue 411.