[Mono-dev] Regressions on 3.13.0-46-generic -> 3.13.0-48-generic

[Taloth Saldono]

This Ubuntu bug discusses the issue for 3.13.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1450584

Please note that later kernel 4.0 versions exhibit similar issues, search
this mailinglist for specifics on that new regression. I gave up on
investigating further due to other obligations and the complexity of the
subject matter.
Op 17 sep. 2015 11:49 schreef "Greg Young" <gregoryyoung1 at gmail.com>:

> 3.13.0-63-generic does not have the issue as well.
>
> I guess our mitigation will just be to know about the issue and
> suggest downgrade/upgrade. This may however be useful for others in
> the future. Mono 3.12.1 on 3.13.0-46-generic #77-Ubuntu SMP appears to
> not be stable. We will also test mono4 now.
>
> Greg
>
> On Thu, Sep 17, 2015 at 11:38 AM, Greg Young <gregoryyoung1 at gmail.com>
> wrote:
> > We are running into some interesting regressions with mono. We are
> > seeing many failures such as:
> >
> > Mono v3.12.1 (we have considered moving up to 4.1 or 4.2 but the last
> > time we tested it didn't seem safe to move).
> >
> > Native stacktrace:
> >
> > /home/ubuntu/EventStore-OSS-Ubuntu-v3.2.1/eventstored() [0x609a4f]
> > /home/ubuntu/EventStore-OSS-Ubuntu-v3.2.1/eventstored() [0x5bdecf]
> > /home/ubuntu/EventStore-OSS-Ubuntu-v3.2.1/eventstored() [0x453b19]
> > /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fd9709b7340]
> > /home/ubuntu/EventStore-OSS-Ubuntu-v3.2.1/eventstored() [0x4e6145]
> > [0x40e21ceb]
> >
> >
> > [03041,21,13:43:11.379] Global Unhandled Exception occurred.
> > Object reference not set to an instance of an object
> > [ERROR] FATAL UNHANDLED EXCEPTION: System.NullReferenceException:
> > Object reference not set to an instance of an object
> >   at EventStore.Core.Bus.QueuedHandlerAutoReset.ReadFromQueue
> > (System.Object o) [0x00000] in <filename unknown>:0
> >   at System.Threading.Thread.StartInternal () [0x00000] in <filename
> unknown>:0
> >
> > note that this isn't a real nre
> >
> > We do not see these regressions in Linux ip-172-31-37-60
> > 3.13.0-46-generic #77-Ubuntu SMP
> >
> > We do see them in Linux ip-172-31-40-115 3.13.0-48-generic #80-Ubuntu SMP
> >
> > Anyone have any ideas how to debug this further? These are not
> > deterministic issues.
> >
> > Cheers,
> >
> > Greg
> >
> > --
> > Studying for the Turing test
>
>
>
> --
> Studying for the Turing test
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