> On Jan 18, 2019, at 11:24 AM, Josh Fisher wrote:
>
> On 1/17/2019 12:17 PM, Dan Langille wrote:
>
>> I was noticing this in my /var/log/messages:
>>
>> Jan 17 17:04:00 slocum kernel: pid 52623 (check_bacula), uid 181: exited on
>> signal 11
>> Jan 17 17:04:21 slocum kernel: pid 53805 (check_bacula), uid 181: exited on
>> signal 11
>>
>> I tracked it down to a host which was not up:
>>
>> $ time ./check_bacula -H tape02 -D fd -M nagios-mon -K '[redacted]'
>> Segmentation fault
>>
>> real 1m15.101s
>> user 0m0.006s
>> sys 0m0.000s
>>
>>
>> Could someone else please try to replicate this situation for me please?
>>
>> This check is being run on FreeBSD 12.0-RELEASE-p2 with check_bacula from
>> Bacula 9.2.2
>>
>> Thank you.
>>
> Have you tried with debug level increased, say using -d7 in the command line?
> Maybe that would give a clue as to what it does prior to the segfault.
>
This was interesting:
$ time ./check_bacula -H tape02 -D fd -M nagios-mon -K '[redacted]' -d7
Segmentation fault
real1m15.137s
user0m0.000s
sys 0m0.004s
Note the time, similar to the first test.
Let's up the debug level
$ time ./check_bacula -H tape02 -D fd -M nagios-mon -K '[redacted]' -d77
check_bacula: bsockcore.c:384-0 Could not connect to server File daemon
tape02:9102. ERR=Operation timed out
check_bacula: bsockcore.c:197-0 Unable to connect to File daemon on
tape02:9102. ERR=Operation timed out
Segmentation fault
real1m15.024s
user0m0.000s
sys 0m0.004s
Ok debugging info.
Let's bump up:
$ time ./check_bacula -H tape02 -D fd -M nagios-mon -K '[redacted]' -d777
check_bacula: bsockcore.c:299-0 Current 10.55.0.110:9102 All 10.55.0.110:9102
check_bacula: bsockcore.c:384-0 Could not connect to server File daemon
tape02:9102. ERR=Host is down
check_bacula: bsockcore.c:197-0 Unable to connect to File daemon on
tape02:9102. ERR=Host is down
Segmentation fault
real0m0.013s
user0m0.000s
sys 0m0.004s
What: zero time?
Further tests with -d777, -d77, and -d7 all finished in near-zero time. I
tried again without -d, and it failed in 75 seconds, like the others.
Try again with -d (a larger value than previously tried), near-zero time
again.
Then I waited and tried again.
[dan@webserver:/usr/local/libexec/nagios] $ time ./check_bacula -H tape02 -D fd
-M nagios-mon -K '[redacted' -d
check_bacula: bsockcore.c:299-0 Current 10.55.0.110:9102 All 10.55.0.110:9102
check_bacula: bsockcore.c:384-0 Could not connect to server File daemon
tape02:9102. ERR=Operation timed out
check_bacula: bsockcore.c:197-0 Unable to connect to File daemon on
tape02:9102. ERR=Operation timed out
check_bacula: watchdog.c:82-0 Initialising NicB-hacked watchdog thread
check_bacula: watchdog.c:197-0 Registered watchdog 800c38098, interval 300 one
shot
check_bacula: watchdog.c:254-0 NicB-reworked watchdog thread entered
check_bacula: watchdog.c:296-0 pthread_cond_timedwait 60
check_bacula: btimers.c:177-0 Start bsock timer 800c135e8 tid=800c15000 for 300
secs at 1547849285
check_bacula: btimers.c:212-0 Stop bsock timer 800c135e8 tid=800c15000 at
1547849285.
check_bacula: watchdog.c:217-0 Unregistered watchdog 800c38098
check_bacula: watchdog.c:296-0 pthread_cond_timedwait 60
Segmentation fault
real1m15.035s
user0m0.000s
sys 0m0.004s
--
Dan Langille - BSDCan / PGCon
d...@langille.org
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