Waiting to acquire lock

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Message 3322 - Posted: 17 Oct 2015, 19:34:42 UTC

Weird, never seen this before, the Wu Prop Wu remains in a Waiting to aquire lock stage ... ???

10/17/2015 1:18:20 PM | WUProp@Home | task postponed 600.000000 sec: Waiting to acquire lock
10/17/2015 1:28:56 PM | WUProp@Home | task postponed 600.000000 sec: Waiting to acquire lock
10/17/2015 1:31:20 PM | | Windows is suspending operations
10/17/2015 1:31:20 PM | | Suspending computation - requested by operating system
10/17/2015 1:31:20 PM | | Suspending network activity - requested by operating system
10/17/2015 1:31:23 PM | | Resuming after OS suspension
10/17/2015 1:31:23 PM | | Resuming after OS suspension
10/17/2015 3:21:59 PM | | Resuming computation
10/17/2015 3:21:59 PM | | Resuming network activity
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Message 3324 - Posted: 18 Oct 2015, 14:53:26 UTC - in response to Message 3322.  

Weird, never seen this before, the Wu Prop Wu remains in a Waiting to aquire lock stage ... ???

10/17/2015 1:18:20 PM | WUProp@Home | task postponed 600.000000 sec: Waiting to acquire lock

The first thing a BOINC task does when it starts is open and lock the file "boinc_lockfile" in its allocated slot directory. This prevents another task from using the same slot until the lock is released.

The only time I've seen this was after a task failed to stop running when BOINC was shut down (that was years ago; the way BOINC terminates tasks has been improved massively singe then). When BOINC is restarted it reallocates the slot and the new task finds itself locked out.

It could also happen without atopping BOINC if a task notifies BOINC that it has finished but it continues running.
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Message boards : Number crunching : Waiting to acquire lock

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