Alexei, It seems like your issue is not reproduced on my RHEL4 systems, while on Debian I see exact buggy behavior you described. I'm having a quick look now...
Thanks, Aleksey. On Nov 29, 2007 6:50 PM, Aleksey Shipilev <[EMAIL PROTECTED]> wrote: > Alexei, > > I have failed to reproduce the issue with r599456 32bit build on both > Linux32/64 with both Selector providers and Jetty 6.1.2pre1. > Stress tests worked out fine 5 of 5 runs each with 1000 iterations. > > I've used: > Apache Harmony Launcher : (c) Copyright 1991, 2007 The Apache Software > Foundation or its licensors, as applicable. > java version "1.5.0" > pre-alpha : not complete or compatible > svn = r599456, (Nov 29 2007), Linux/ia32/gcc 3.4.6, release build > http://harmony.apache.org > > On: > - Linux linux64 2.6.9-55.ELlargesmp #1 SMP Fri Apr 20 16:46:56 EDT > 2007 x86_64 x86_64 x86_64 GNU/Linux > - Linux linux32 2.6.9-55.ELsmp #1 SMP Fri Apr 20 17:03:35 EDT 2007 > i686 i686 i386 GNU/Linux > > Thanks, > Aleksey. > > > On Nov 29, 2007 5:50 PM, Alexei Zakharov <[EMAIL PROTECTED]> wrote: > > Try it on Linux64, I was able to reproduce it very easily there. > > > > Thanks for doing this, > > > > Alexei > > > > 2007/11/29, Aleksey Shipilev <[EMAIL PROTECTED]>: > > > I have one wild thought about the origin of this issue, so I'm going > > > to spend some time for trying. > > > BTW, I failed to reproduce the crash even on legacy selector on my > > > r588236 workspace, now I'm updating it to more recent one. > > > > > > Thanks, > > > Aleksey. > > > > > > On Nov 29, 2007 5:40 PM, Alexei Zakharov <[EMAIL PROTECTED]> wrote: > > > > Hi Aleksey, > > > > > > > > Your provider works better than the default one - VM crash disappears. > > > > VM runs into the dead loop instead :) BTW it would be great if you can > > > > have a look at it... > > > > > > > > Thanks, > > > > Alexei > > > > > > > > 2007/11/29, Aleksey Shipilev <[EMAIL PROTECTED]>: > > > > > > > > > Oh sorry, forget it, I should have read JIRA carefully. > > > > > > > > > > On Nov 29, 2007 5:11 PM, Aleksey Shipilev <[EMAIL PROTECTED]> wrote: > > > > > > Alexei, > > > > > > > > > > > > Can you try epoll()-based Selector [1] as fallback? Please specify > > > > > > this option on cmdline: > > > > > > -Djava.nio.channels.spi.SelectorProvider=org.apache.harmony.nio.internal.EpollSelectorProviderImpl > > > > > > > > > > > > [1] https://issues.apache.org/jira/browse/HARMONY-4879 > > > > > > > > > > > > > > > > > > On Nov 29, 2007 5:06 PM, Alexei Zakharov <[EMAIL PROTECTED]> wrote: > > > > > > > Hi all, > > > > > > > > > > > > > > If you keep track of CC reports (either at [1] or by reading > > > > > > > [EMAIL PROTECTED]) then you probably noticed that we have > > > > > > > intermittent failures of Jetty scenario on Linux'es for quite long > > > > > > > period of time already. I've spent some time on investigation of > > > > > > > this > > > > > > > failure and found that Jetty-on-Harmony has issues with handling > > > > > > > of > > > > > > > big static files. In most cases it simply returns corrupted data. > > > > > > > However, sometimes it hangs or even crashes. I've put the detailed > > > > > > > description of this problem here [2]. In brief I think we have > > > > > > > bugs in > > > > > > > Harmony implementation of NIO selectors. Jetty works ok if its > > > > > > > default > > > > > > > SelectChannelConnector is replaced with any other of its > > > > > > > connectors > > > > > > > like SockerConnector (no NIO) or BlockingChannelConnector (NIO, > > > > > > > but no > > > > > > > selectors). Stack traces also point to problems somewhere in > > > > > > > Java_org_apache_harmony_luni_platform_OSNetworkSystem_selectImpl . > > > > > > > > > > > > > > IMO such issue is rather critical because it prevents default > > > > > > > configuration of Jetty from working correctly on Harmony. > > > > > > > Unfortunately I'm not very familiar with NIO code by myself. So I > > > > > > > think it would be nice if our NIO experts can take a look at it. > > > > > > > And > > > > > > > IMO it would be good to have it fixed till M4. > > > > > > > > > > > > > > [1] > > > > > > > http://people.apache.org/~mloenko/snapshot_testing/script/snapshots_summary.html > > > > > > > [2] https://issues.apache.org/jira/browse/HARMONY-5219 > > > > > > > > > > > > > > Thanks, > > > > > > > Alexei > > > > > > > > > > > > > > > > > > > > > > > > > > > >
