Re: bpvo pool exhausted

Thank you for the explanation.

I suspect this will fix the issue!

On 9/28/2022 5:31 AM, Alfredo Dal'Ava Júnior wrote:
> Cameron,
>
> This is a boot-only option that can't be tuned by sysctl. You really 
> need to set it in the loader prompt if just testing or add the 
> following to /boot/loader.conf to make it permanent:
>
> machdep.moea64_bpvo_pool_size=655360
>
> This option is not new but before 13.0-RELEASE there was a bug 
> preventing users from setting a value larger than the default 
> (327680). This was fixed by change 
> https://cgit.freebsd.org/src/commit/?id=95a8fce118b24c0a7656f4ded4690210d9998e24. 
>
>
> []'s,
> Alfredo
>
> On Wed, Sep 28, 2022 at 12:13 AM Cameron Berkenpas <cam@neo-zeon.de> 
> wrote:
>
>     Hello,
>
>     I do not have a way to consistently reproduce this. I was finally
>     able to get through recompiling all of the installed ports before
>     I was able to test this.
>
>     Should this show up via sysctl? Because it does not:
>     sysctl machdep.moea64_bpvo_pool_size
>     sysctl: unknown oid 'machdep.moea64_bpvo_pool_size'
>
>     Should I be able to set this in /boot/loader.conf?
>
>     I did try setting it at boot. I'm not sure it did anything though.
>     Nothing in dmesg.
>
>     The VM has 12 threads and 16GB of memory running 13.1-RELEASE-p2.
>
>     Maybe this is a new option in CURRENT?
>
>     On 9/27/22 11:54, Alfredo Dal'Ava Júnior wrote:
>>
>>     Hi Cameron,
>>
>>     In the loader prompt I type:
>>
>>     set machdep.moea64_bpvo_pool_size=655360
>>     boot
>>
>>     How are you testing it? What's the FreeBSD version and how much
>>     memory do you have on it? As reference I tested it on VMs with
>>     64GB of RAM in the past.
>>
>>     []'s
>>     Alfredo
>>
>>     On Tue, Sep 27, 2022 at 2:41 PM Cameron Berkenpas
>>     <cam@neo-zeon.de> wrote:
>>
>>         Hello,
>>
>>         When recompiling my ports, I started getting periodic crashes
>>         on a VM
>>         running on POWER9.
>>
>>         "bpvo pool exhausted".
>>
>>         The message says to try setting
>>         machdep.moea64_allocated_bpvo_entries,
>>         but this is apparently read-only. I've attached a screenshot
>>         of the
>>         stacktrace.
>>
>