Generally JIT is ready for uncompressed+server mode, because it was tested a bit. Probably those tests touch the code which is not used usually, or some changes were checked in after testing in this mode. But I hope these problems in JIT can be fixed easily.
I agree with Mikhail; as uncompressed mode was set by default for testing purpose, we'll revert the patch after gathering more bug statistics. Thanks, Ilya. 2008/1/10, Mikhail Loenko <[EMAIL PROTECTED]>: > > We should revert it once we have more testing results. When we know > all the failures we can continue bugfix for the uncompressed mode > > 2008/1/10, Gregory Shimansky <[EMAIL PROTECTED]>: > > Hello > > > > This switch to uncompressed references by default broke several > > regression tests that run on JIT in server mode. For example running > > test for H3228 crashes on assertion in JIT: > > > > #0 0x00002b5992689b75 in raise () from /lib64/libc.so.6 > > #1 0x00002b599268b060 in abort () from /lib64/libc.so.6 > > #2 0x00002b5992683246 in __assert_fail () from /lib64/libc.so.6 > > #3 0x00002aaaad23ab70 in Jitrino::HelperInliner::run (this=0xfd9fd0) at > > > /nfs/ims/proj/drl/mrt2/users/gregory/em64t/trunk/working_vm/vm/jitrino/src/optimizer/helper_inliner.cpp:207 > > #4 0x00002aaaad23b808 in Jitrino::HelperInlinerSession::_run > > (this=0xfdef88, [EMAIL PROTECTED]) at > > > /nfs/ims/proj/drl/mrt2/users/gregory/em64t/trunk/working_vm/vm/jitrino/src/optimizer/helper_inliner.cpp:200 > > #5 0x00002aaaad27fb31 in Jitrino::OptPass::run (this=0xfdef88) at > > > /nfs/ims/proj/drl/mrt2/users/gregory/em64t/trunk/working_vm/vm/jitrino/src/optimizer/optpass.cpp:62 > > #6 0x00002aaaad137b0d in Jitrino::runPipeline (c=0x42410440) at > > > /nfs/ims/proj/drl/mrt2/users/gregory/em64t/trunk/working_vm/vm/jitrino/src/main/Jitrino.cpp:224 > > #7 0x00002aaaad137ba4 in Jitrino::compileMethod (cc=0x42410440) at > > > /nfs/ims/proj/drl/mrt2/users/gregory/em64t/trunk/working_vm/vm/jitrino/src/main/Jitrino.cpp:241 > > #8 0x00002aaaad137c54 in Jitrino::Jitrino::CompileMethod > > (cc=0x42410440) at > > > /nfs/ims/proj/drl/mrt2/users/gregory/em64t/trunk/working_vm/vm/jitrino/src/main/Jitrino.cpp:258 > > <snip more stack frames> > > > > Looking at the helper_inliner.cpp:207 I see the following code: > > > > #ifdef _EM64T_ > > assert(VMInterface::areReferencesCompressed()); > > #endif > > > > which probably means that it is just not ready for uncompressed > > references mode. I want to ask JIT developers, whether it is easy to > > quickly fix this, or should we revert switching to uncompressed > > references as the default mode? > > > > [EMAIL PROTECTED] said the following on 10.01.2008 12:13: > > > Author: smishura > > > Date: Thu Jan 10 01:12:41 2008 > > > New Revision: 610727 > > > > > > URL: http://svn.apache.org/viewvc?rev=610727&view=rev > > > Log: > > > Apply patch from HARMONY-5355: > > > [drlvm][object][testing] Change default references mode to > uncompressed on x86-64 > > > > > > Modified: > > > > harmony/enhanced/drlvm/trunk/vm/vmcore/src/class_support/Environment.cpp > > > harmony/enhanced/drlvm/trunk/vm/vmcore/src/init/vm_properties.cpp > > > > > > Modified: > harmony/enhanced/drlvm/trunk/vm/vmcore/src/class_support/Environment.cpp > > > URL: > http://svn.apache.org/viewvc/harmony/enhanced/drlvm/trunk/vm/vmcore/src/class_support/Environment.cpp?rev=610727&r1=610726&r2=610727&view=diff > > > > ============================================================================== > > > --- > harmony/enhanced/drlvm/trunk/vm/vmcore/src/class_support/Environment.cpp > (original) > > > +++ > harmony/enhanced/drlvm/trunk/vm/vmcore/src/class_support/Environment.cpp Thu > Jan 10 01:12:41 2008 > > > @@ -126,7 +126,7 @@ > > > use_lil_stubs = true; > > > #ifdef REFS_USE_RUNTIME_SWITCH > > > #ifdef POINTER64 > > > - compress_references = true; > > > + compress_references = false; > > > #else // POINTER64 > > > compress_references = false; > > > #endif // POINTER64 > > > > > > Modified: > harmony/enhanced/drlvm/trunk/vm/vmcore/src/init/vm_properties.cpp > > > URL: > http://svn.apache.org/viewvc/harmony/enhanced/drlvm/trunk/vm/vmcore/src/init/vm_properties.cpp?rev=610727&r1=610726&r2=610727&view=diff > > > > ============================================================================== > > > --- harmony/enhanced/drlvm/trunk/vm/vmcore/src/init/vm_properties.cpp > (original) > > > +++ harmony/enhanced/drlvm/trunk/vm/vmcore/src/init/vm_properties.cpp > Thu Jan 10 01:12:41 2008 > > > @@ -303,7 +303,7 @@ > > > properties.set_new("thread.soft_unreservation", "false"); > > > > > > #ifdef REFS_USE_RUNTIME_SWITCH > > > - properties.set_new("vm.compress_references", "true"); > > > + properties.set_new("vm.compress_references", "false"); > > > #endif > > > > > > int n_api_dll_files = sizeof(api_dll_files) / sizeof(char *); > > > > > > > > > > >
