These situations are very hard to debug by outsiders, for the community to help we need a reproduceable case that does not depend on internal or private services.
The stacktrace is not exceptional as far as I can see: it is trying to read a response until EOF, after a POST. It is quite strange that it would work with the stack VM, since the same Smalltalk code is then running, using the same primitives. Maybe the other VM just postpones/changes the way it fails. Running out of semaphores is a resource management problem, caused directly or indirectly from certain usage patterns. Again, see the first sentence. I would advice running units and/or stress tests on the server or on a Linux VM with UI on your Mac. Bughunts are never easy… On 13 Nov 2012, at 00:33, Igor Stasenko <[email protected]> wrote: > yeah the dumps are really strange.. > seems like most of the times crashing at this point: > > 0xffc05bd8 M ZnChunkedReadStream>next -613198972: a(n) ZnChunkedReadStream > 0xffc05bfc M ZnUTF8Encoder>nextFromStream: -613185216: a(n) ZnUTF8Encoder > 0xffc05c30 M [] in ZnStringEntity>readUpToEndFrom: -613186408: a(n) > ZnStringEntity > 0xffc1333c M BlockClosure>on:do: -613184868: a(n) BlockClosure > 0xffc1336c M [] in ZnStringEntity>readUpToEndFrom: -613186408: a(n) > ZnStringEntity > 0xffc1338c M String class(SequenceableCollection > class)>new:streamContents: -679940384: a(n) String class > 0xffc133ac M String class(SequenceableCollection > class)>streamContents: -679940384: a(n) String class > 0xffc133d8 M ZnStringEntity>readUpToEndFrom: -613186408: a(n) ZnStringEntity > 0xffc133f4 M ZnStringEntity>readFrom: -613186408: a(n) ZnStringEntity > 0xffc13414 M ZnEntity class>readFrom:usingType:andLength: -678925448: > a(n) ZnEntity class > 0xffc13440 M ZnEntityReader>readFrom:usingType:andLength: -613217204: > a(n) ZnEntityReader > 0xffc13474 M ZnEntityReader>readEntityFromStream -613217204: a(n) > ZnEntityReader > 0xffc13490 M ZnEntityReader>readEntity -613217204: a(n) ZnEntityReader > 0xffc134ac M ZnResponse(ZnMessage)>readEntityFrom: -614400344: a(n) ZnResponse > 0xffc134c8 M ZnResponse>readEntityFrom: -614400344: a(n) ZnResponse > > On 12 November 2012 16:12, Sebastian Sastre <[email protected]> > wrote: >> Hi guys, >> >> I'm sorry for this news. >> >> We have a web app that's is increasingly crashing in production (on linux). >> >> In development (OS X) we couldn't reproduce >> >> We are falling back to the StackVM >> >> Here is some dump data we could get >> >> sebastian >> >> o/ > > -- > Best regards, > Igor Stasenko.
