[arm-allstar] Core Dumps

[David McGough]

Sean,

This looks like Linux memory cache corruption, as you saw earlier.

Go to a bash prompt (admin menu #9) and see if this causes the problem to 
go away:

sync
echo 3 > /proc/sys/vm/drop_caches


Is this the same RPi3 that was having problems earlier?



73, David KB4FXC




On Thu, 2 Aug 2018, "Sean McCarthy via arm-allstar" wrote:

> Looking for some assistance figuring this out. System was running
> flawlessly for weeks before this started on the 31st at 9 p.m.
> 
> Core dumps on the top of the hour consistently with the following messages
> in the journal:
> 
> Aug 02 21:00:01 FBIARC_HUB crond[3830]: pam_unix(crond:session): session
> opened for user root by (uid=0)
> Aug 02 21:00:01 FBIARC_HUB crond[3829]: pam_unix(crond:session): session
> opened for user root by (uid=0)
> Aug 02 21:00:01 FBIARC_HUB CROND[3832]: (root) CMD
> (/usr/local/bin/AUTOSKY/AutoSky)
> Aug 02 21:00:01 FBIARC_HUB CROND[3831]: (root) CMD ((source
> /usr/local/etc/allstar.env ; /usr/bin/nice -19 /usr/bin/perl
> /usr/local/sbin/saytime.pl 48092 $NODE1 > /dev/null))
> Aug 02 21:00:01 FBIARC_HUB CROND[3830]: (root) CMDOUT (awk: fatal error:
> internal error)
> Aug 02 21:00:01 FBIARC_HUB systemd[1]: Started Process Core Dump (PID
> 3860/UID 0).
> Aug 02 21:00:01 FBIARC_HUB CROND[3830]: (root) CMDOUT (awk: fatal error:
> internal error)
> Aug 02 21:00:01 FBIARC_HUB systemd[1]: Started Process Core Dump (PID
> 3865/UID 0).
> Aug 02 21:00:01 FBIARC_HUB CROND[3830]: (root) CMDOUT (awk: fatal error:
> internal error)
> Aug 02 21:00:01 FBIARC_HUB systemd-coredump[3861]: Process 3859 (awk) of
> user 0 dumped core.
> 
>                                                    Stack trace of thread
> 3859:
>                                                    #0  0x000000000006aad8
> n/a (gawk)
> Aug 02 21:00:01 FBIARC_HUB systemd[1]: Started Process Core Dump (PID
> 3870/UID 0).
> Aug 02 21:00:01 FBIARC_HUB systemd-coredump[3866]: Process 3864 (awk) of
> user 0 dumped core.
> 
>                                                    Stack trace of thread
> 3864:
>                                                    #0  0x000000000006aad8
> n/a (gawk)
> Aug 02 21:00:01 FBIARC_HUB systemd-coredump[3871]: Process 3869 (awk) of
> user 0 dumped core.
> 
>                                                    Stack trace of thread
> 3869:
>                                                    #0  0x000000000006aad8
> n/a (gawk)
> Aug 02 21:00:01 FBIARC_HUB CROND[3829]: (root) CMDOUT (AutoSky Xresult is 0)
> Aug 02 21:00:01 FBIARC_HUB CROND[3829]: pam_unix(crond:session): session
> closed for user root
> Aug 02 21:00:02 FBIARC_HUB CROND[3830]: pam_unix(crond:session): session
> closed for user root
> Aug 02 21:01:01 FBIARC_HUB CROND[3903]: (root) CMD (run-parts
> /etc/cron.hourly)
> Aug 02 21:04:01 FBIARC_HUB crond[3934]: pam_unix(crond:session): session
> opened for user root by (uid=0)
> Aug 02 21:04:01 FBIARC_HUB CROND[3935]: (root) CMD
> (/usr/local/bin/AUTOSKY/AutoSky)
> Aug 02 21:04:02 FBIARC_HUB CROND[3934]: (root) CMDOUT (AutoSky Xresult is 0)
> Aug 02 21:04:02 FBIARC_HUB CROND[3934]: pam_unix(crond:session): session
> closed for user root
> Aug 02 21:05:15 FBIARC_HUB systemd[1]: Started Process Core Dump (PID
> 3960/UID 0).
> Aug 02 21:05:15 FBIARC_HUB systemd-coredump[3961]: Process 3959 (awk) of
> user 33 dumped core.
> 
>                                                    Stack trace of thread
> 3959:
>                                                    #0  0x000000000006aad8
> n/a (gawk)
> Aug 02 21:05:15 FBIARC_HUB systemd[1]: Started Process Core Dump (PID
> 3986/UID 0).
> Aug 02 21:05:15 FBIARC_HUB systemd-coredump[3987]: Process 3985 (awk) of
> user 33 dumped core.
> 
>                                                    Stack trace of thread
> 3985:
>                                                    #0  0x000000000006aad8
> n/a (gawk)
> Aug 02 21:08:01 FBIARC_HUB crond[4022]: pam_unix(crond:session): session
> opened for user root by (uid=0)
> Aug 02 21:08:01 FBIARC_HUB CROND[4023]: (root) CMD
> (/usr/local/bin/AUTOSKY/AutoSky)
> Aug 02 21:08:01 FBIARC_HUB CROND[4022]: (root) CMDOUT (AutoSky Xresult is 0)
> Aug 02 21:08:01 FBIARC_HUB CROND[4022]: pam_unix(crond:session): session
> closed for user root
> [root at FBIARC_HUB ~]#
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