[LAD] Re: Jack error

On 04/08/2023 04:35, Fons Adriaensen wrote:
> Hello all,
>
> I get this error when starting any program using jack (1.9.22):
>
>    BDB2034 unable to allocate memory for mutex; resize mutex region
>    Cannot open DB environment: Cannot allocate memory
>
> This occurs only after the system and jackd have been running for
> a long time (weeks or months). Restarting jackd doesn't help,
> a reboot is required.
>
> I assume this is related to jackd using a Berkeley Database to
> store optional application and port data.
>
> I don't need this functionality, but there seems to be no option
> to disable it. Also it seems that BDB is no longer maintained.
>
> Any hints as to how to avoid this problem ?
>
> Ciao,
>

Interesting. Had no idea BDB was used.

A search of posts revealed that BDB is only used for the jack metadata.


A search in the code revealed this in the WAF file 'wscript':

db = opt.add_auto_option(
             'db',
             help='Use Berkeley DB (metadata)')


Sure looks like an option !

See if you can access that option via the WAF configuration script.


Tim.
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