[Vm-dev] VM crash with message 'could not grow remembered set'

Phil B pbpublist at gmail.com
Thu Oct 19 19:52:25 UTC 2017


I was curious as to whether you or Eliot were able to get anything useful
from this or not.


On Oct 13, 2017 2:52 AM, "Clément Bera" <bera.clement at gmail.com> wrote:

On Thu, Oct 12, 2017 at 9:41 PM, Phil B <pbpublist at gmail.com> wrote:

> Clément,
> On Oct 11, 2017 4:09 AM, "Clément Bera" <bera.clement at gmail.com> wrote:
> Hi,
> Without a way to reproduce, it is difficult to deal with the problem.
> Hopefully, this will allow you to do so: https://github.com/pbella/VmIs
> sueCouldNotGrow
> This turned out to be tricky to provide a repo case for since I'm not sure
> exactly what is triggering it so I reproduced the type of work I'm throwing
> at the VM (it's a bulk parser/loader) where there's lots of continuous
> allocation going on with the occasional saving of a result to generate lots
> of garbage.  This should run in 5-10 minutes depending on the speed of your
> system.
> The main caveat is that I'm only able to get this example to reliably
> reproduce with the included VM with the commented VM parameters applied.
> So I'm not sure if this is an issue only with this particular VM/parameter
> combination or if it's just generally a difficult to reproduce issue.


Today I am very busy.

I will try to have a look tomorrow, else Eliot said he could have a look
next week. 5-10 min means if I want to simulate I must likely will need to
start simulation tonight and debug tomorrow morning.

> Thanks,
> Phil

Clément Béra
Pharo consortium engineer
Bâtiment B 40, avenue Halley 59650 Villeneuve d'Ascq
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