[Bacula-users] Jobs not completing, but not erroring?

Hi all,
     Been using Bacula 2.4.2 on Solaris 10_x86 for almost 2 years now. Recently tape backups have been entering into a state that I can only describe as "limbo".

If I check the status of the director, I may see something like

Running Jobs:
JobId Level   Name                       Status
======================================================================
22649 Increme RMAN_A_Lvl1_Tape.2009-02-17_13.30.36 is running
22650 Increme RMAN_B_Lvl1_Tape.2009-02-17_13.30.38 is waiting on max Storage jobs
22651 Increme RMAN_PROD_Lvl1_Tape.2009-02-17_14.00.40 is waiting on max Storage jobs
22652 Increme RMAN_BI_Lvl1_Tape.2009-02-17_14.00.42 is waiting on max Storage jobs
22653 Increme RMAN_COG_Lvl1_Tape.2009-02-17_14.00.44 is waiting on max Storage jobs

If I check the status of the running jobid or the tape device, it will show this:

Used Volume status:
B00046 on device "Ultrium-TD3" (/dev/rmt/0cbn)
    Reader=0 writers=0 devres=0 volinuse=1
====

Data spooling: 0 active jobs, 0 bytes; 80 total jobs, 47,799,329,608 max bytes/job.
Attr spooling: 0 active jobs, 0 bytes; 80 total jobs, 40,616 max bytes.

Basically, tape is mounted and reserved, job is showing a "is running" status, but nothing is happening. Because I lack any monitoring of how long jobs have been running,
these have sat for as many as 3 days without changing status, erroring, or completing. This backs up subsequent jobs that have been waiting for the tape device.
The only commonality that I've seen is that they are tape jobs. Other than that, the level, fileset, etc. are different.

On one occasion when I cancelled one of these long running jobs, I got an error

Hostname    : BUG!
Date    : 2009-02-11 14:00:30
Severity    : err

unregister_watchdog_unlocked called before start_watchdog

Hostname    : BUG!
Date    : 2009-02-11 14:00:30
Severity    : err

bacula-dir[20200]: [ID 702911 daemon.error] backup4.director: ABORTING due to ERROR in watchdog.c:206

If anyone has any advice on what might be happening, I would really appreciate your responses.

Thank you,
Shon

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