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Crash motionvector with long running script (split from A3300 porting)

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Offline davedude

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Re: Crash motionvector with long running script (split from A3300 porting)
« Reply #20 on: 05 / September / 2015, 17:08:19 »
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Quote from: reyalp on 01 / September / 2015, 21:45:10
Tying up the CPU for too long could be plausible, but I'd be surprised if this was happening.

I've run both cameras for several days now with no crash by simply sleeping for 30 seconds after shutter actuation.  Since the loop above seems pretty innocuous, it would appear that CPU hogging is a likely suspect.   I've not tried to worsen the problem as I'm documenting an ongoing construction project and I need the cams working (apparently, I have a workaround at this point.)  I can experiment when construction is finished.

It might be crappy real-time coding on Canon's part: Start timer, move something, check timer and abort if too much time has passed as a non-atomic operation.
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Offline reyalp

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Re: Crash motionvector with long running script (split from A3300 porting)
« Reply #21 on: 09 / September / 2019, 16:07:58 »
Another report on sx230 https://chdk.setepontos.com/index.php?topic=13875.msg141329#msg141329

and attached romlog showing the same crash on sx130, from a user using PTP remote shoot
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Offline srsa_4c

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Re: Crash motionvector with long running script (split from A3300 porting)
« Reply #22 on: 09 / September / 2019, 17:46:47 »
Some links about the solution to a similar issue, motionvector related crash when using the remote hook. Moving the hooks around seems to have been enough.
https://chdk.setepontos.com/index.php?topic=7887.msg114622#msg114622
https://app.assembla.com/spaces/chdk/subversion/commits/4799
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Offline reyalp

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Re: Crash motionvector with long running script (split from A3300 porting)
« Reply #23 on: 10 / September / 2019, 02:02:40 »
Quote from: srsa_4c on 09 / September / 2019, 17:46:47
Some links about the solution to a similar issue, motionvector related crash when using the remote hook. Moving the hooks around seems to have been enough.
https://chdk.setepontos.com/index.php?topic=7887.msg114622#msg114622
https://app.assembla.com/spaces/chdk/subversion/commits/4799
Thanks, I thought I remembered there being a fix, but didn't turn that up in search.
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