Hello again,

On Wed, 5 Apr 2017, G.W. Haywood wrote:

> ... later I added the 'N$' share to the BackupPC
> configuration.  That was about a week ago.  Last night's backup
> started at 21:00.  After more than 14, hours one process is still
> using 100% of a CPU:
> 
> PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND 
> 6352 ged       20   0  109364  68124   4568 R 100.0  1.7 449:24.60 
> /usr/bin/perl /usr/local/BackupPC/bin/BackupPC_tarExtract -h hostname -s N$ 
> -f

After letting it run for 36 hours with no sign of it writing to the log:

-rw-r----- 1 ged ged 2580494 Apr  5 02:32 XferLOG.8.z

I tried to stop it:

host07:# >>> ps axufwww | grep Backup
ged      32382  0.0  0.3  58900 12380 ?        S    Mar30   0:01 /usr/bin/perl 
/usr/local/BackupPC/bin/BackupPC -d
ged      32383  0.0  0.5  74072 23428 ?        SN   Mar30   0:00  \_ 
/usr/bin/perl /usr/local/BackupPC/bin/BackupPC_Admin_SCGI
ged      32384  0.0  0.5  78456 24056 ?        SN   Mar30   0:00  |   \_ 
/usr/bin/perl /usr/local/BackupPC/bin/BackupPC_Admin_SCGI
ged      20756  0.0  0.6  79120 24720 ?        SN   Mar31   0:00  |   \_ 
/usr/bin/perl /usr/local/BackupPC/bin/BackupPC_Admin_SCGI
ged       4310  0.0  0.5  79624 21432 ?        S    Apr04   0:14  \_ 
/usr/bin/perl /usr/local/BackupPC/bin/BackupPC_dump hostname
ged       6352 91.8  1.6 109364 68124 ?        R    Apr04 1818:28      \_ 
/usr/bin/perl /usr/local/BackupPC/bin/BackupPC_tarExtract -h hostname -s N$ -f
host07:# >>> /etc/init.d/backuppc stop
Stopping backuppc:
ok.
host07:# >>> ps axufwww | grep Backup
ged       6352 91.8  1.6 109364 68124 ?        R    Apr04 1818:54 /usr/bin/perl 
/usr/local/BackupPC/bin/BackupPC_tarExtract -h hostname -s N$ -f
host07:# >>> ps axufwww | grep Backup
ged       6352 91.8  1.6 109364 68124 ?        R    Apr04 1819:01 /usr/bin/perl 
/usr/local/BackupPC/bin/BackupPC_tarExtract -h hostname -s N$ -f

The errant process wouldn't respond to '/etc/init.d/backuppc stop'
so I killed it:

host07:# >>> kill 6352
host07:# >>> ps axufwww | grep Backup
host07:# >>>

Then I restarted BackupPC:

host07:# >>> /etc/init.d/backuppc start
Starting backuppc: ok.

Then I let it run for another day, with similar results.  At 09:00
BackupPC_tarExtract is chewing 100% CPU and XferLOG.9.z was last
written at 00:37 this morning.

There seems to be an infinite loop in there somewhere which I'm
somehow triggering.

Any suggestions for debugging?

-- 

73,
Ged.

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