While the V8 team accepts upstream patches from the team that develops the MIPS port for V8, we do not maintain it ourselves. Please file an issue to https://github.com/paul99/v8m-rb
Yang On Friday, July 27, 2012 6:05:26 AM UTC+2, Evgeny Baskakov wrote: > > Hi guys, > > I'm experiencing severe GC crashes on some rare MIPS devices. The V8 code > is taken from https://github.com/paul99/v8m-rb, > commit c2e35dc507b4562ce666a48cb7a26633f9d7fdaf (plus some modifications > for the specific device). > > The crashing command line is > > # /bin/d8 --nocrankshaft --expose-gc --noopt /bin/mjsunit/mjsunit.js > /bin/mjsunit/regress/regress-84234.js --test > > Can someone give some hints to what to look at first? > > Here are the gdb callstacks: > > Program received signal SIGSEGV, Segmentation fault. > 0x2ab4fd5c in v8::internal::Map::instance_size (this=0x166) at > ../src/objects-inl.h:2833 > 2833 return READ_BYTE_FIELD(this, kInstanceSizeOffset) << > kPointerSizeLog2; > (gdb) bt > #0 0x2ab4fd5c in v8::internal::Map::instance_size (this=0x166) at > ../src/objects-inl.h:2833 > #1 0x2ab5952c in v8::internal::HeapObject::SizeFromMap (this=0x40728b3d, > map=0x166) at ../src/objects-inl.h:2848 > #2 0x2ab597a4 in v8::internal::HeapObject::Size (this=0x40728b3d) at > ../src/objects-inl.h:1181 > #3 0x2aeda718 in v8::internal::SemiSpaceIterator::Next (this=0x7fe1bfec) > at ../src/spaces.h:2006 > #4 0x2aecd4e4 in v8::internal::MarkCompactCollector::EvacuateNewSpace > (this=0x44b470) at ../src/mark-compact.cc:3004 > #5 0x2aecd63c in > v8::internal::MarkCompactCollector::EvacuateNewSpaceAndCandidates > (this=0x44b470) at ../src/mark-compact.cc:3411 > #6 0x2aece720 in v8::internal::MarkCompactCollector::SweepSpaces > (this=0x44b470) at ../src/mark-compact.cc:4103 > #7 0x2aed27d4 in v8::internal::MarkCompactCollector::CollectGarbage > (this=0x44b470) at ../src/mark-compact.cc:295 > #8 0x2ad5b2bc in v8::internal::Heap::MarkCompact (this=0x44a040, > tracer=0x7fe1c2c0) at ../src/heap.cc:979 > #9 0x2ad5b958 in v8::internal::Heap::PerformGarbageCollection > (this=0x44a040, collector=v8::internal::MARK_COMPACTOR, tracer=0x7fe1c2c0) > at ../src/heap.cc:862 > #10 0x2ad5e0d0 in v8::internal::Heap::CollectGarbage (this=0x44a040, > space=v8::internal::OLD_POINTER_SPACE, > collector=v8::internal::MARK_COMPACTOR, gc_reason=0x2b2bde34 "gc > extension", > collector_reason=0x2b2cc244 "GC in old space requested") at > ../src/heap.cc:600 > #11 0x2ac1f784 in v8::internal::Heap::CollectGarbage (this=0x44a040, > space=v8::internal::OLD_POINTER_SPACE, gc_reason=0x2b2bde34 "gc extension") > at ../src/heap-inl.h:440 > #12 0x2ad5e934 in v8::internal::Heap::CollectAllGarbage (this=0x44a040, > flags=0, gc_reason=0x2b2bde34 "gc extension") at ../src/heap.cc:510 > #13 0x2aca7c14 in v8::internal::GCExtension::GC (args=@0x7fe1c4cc) at > ../src/extensions/gc-extension.cc:43 > #14 0x2ac047f4 in HandleApiCallHelper<false> > (args={<v8::internal::Arguments> = {<v8::internal::Embedded> = {<No data > fields>}, length_ = 2, arguments_ = 0x7fe1c594}, <No data fields>}, > isolate=0x44a038) at ../src/builtins.cc:1145 > #15 0x2ac049d0 in Builtin_Impl_HandleApiCall > (args={<v8::internal::Arguments> = {<v8::internal::Embedded> = {<No data > fields>}, length_ = 2, arguments_ = 0x7fe1c594}, <No data fields>}, > isolate=0x44a038) at ../src/builtins.cc:1162 > #16 0x2ac04aac in Builtin_HandleApiCall (args={<v8::internal::Arguments> = > {<v8::internal::Embedded> = {<No data fields>}, length_ = 2, arguments_ = > 0x7fe1c594}, <No data fields>}, > isolate=0x44a038) at ../src/builtins.cc:1161 > #17 0x3f60a0b4 in ?? () > > (gdb) print this > $1 = (class v8::internal::Map * const) 0x166 > > > Another one, with similar call stack: > > #12 0x2ac10918 in V8_Fatal (file=0x2b2a7730 "../src/objects-inl.h", > line=2875, format=0x2b2a7748 "CHECK(%s) failed") at ../src/checks.cc:55 > #13 0x2ab5971c in v8::internal::HeapObject::SizeFromMap (this=0x49728af9, > map=0x49728b51) at ../src/objects-inl.h:2875 > #14 0x2ab597a4 in v8::internal::HeapObject::Size (this=0x49728af9) at > ../src/objects-inl.h:1181 > #15 0x2aeda718 in v8::internal::SemiSpaceIterator::Next (this=0x7fdc5a1c) > at ../src/spaces.h:2006 > #16 0x2aecd4e4 in v8::internal::MarkCompactCollector::EvacuateNewSpace > (this=0x44b470) at ../src/mark-compact.cc:3004 > #17 0x2aecd63c in > v8::internal::MarkCompactCollector::EvacuateNewSpaceAndCandidates > (this=0x44b470) at ../src/mark-compact.cc:3411 > #18 0x2aece720 in v8::internal::MarkCompactCollector::SweepSpaces > (this=0x44b470) at ../src/mark-compact.cc:4103 > #19 0x2aed27d4 in v8::internal::MarkCompactCollector::CollectGarbage > (this=0x44b470) at ../src/mark-compact.cc:295 > #20 0x2ad5b2bc in v8::internal::Heap::MarkCompact (this=0x44a040, > tracer=0x7fdc5cf0) at ../src/heap.cc:979 > #21 0x2ad5b958 in v8::internal::Heap::PerformGarbageCollection > (this=0x44a040, collector=v8::internal::MARK_COMPACTOR, tracer=0x7fdc5cf0) > at ../src/heap.cc:862 > #22 0x2ad5e0d0 in v8::internal::Heap::CollectGarbage (this=0x44a040, > space=v8::internal::OLD_POINTER_SPACE, > collector=v8::internal::MARK_COMPACTOR, gc_reason=0x2b2bde34 "gc > extension", > collector_reason=0x2b2cc244 "GC in old space requested") at > ../src/heap.cc:600 > #23 0x2ac1f784 in v8::internal::Heap::CollectGarbage (this=0x44a040, > space=v8::internal::OLD_POINTER_SPACE, gc_reason=0x2b2bde34 "gc extension") > at ../src/heap-inl.h:440 > #24 0x2ad5e934 in v8::internal::Heap::CollectAllGarbage (this=0x44a040, > flags=0, gc_reason=0x2b2bde34 "gc extension") at ../src/heap.cc:510 > #25 0x2aca7c14 in v8::internal::GCExtension::GC (args=@0x7fdc5efc) at > ../src/extensions/gc-extension.cc:43 > #26 0x2ac047f4 in HandleApiCallHelper<false> > (args={<v8::internal::Arguments> = {<v8::internal::Embedded> = {<No data > fields>}, length_ = 2, arguments_ = 0x7fdc5fc4}, <No data fields>}, > isolate=0x44a038) at ../src/builtins.cc:1145 > #27 0x2ac049d0 in Builtin_Impl_HandleApiCall > (args={<v8::internal::Arguments> = {<v8::internal::Embedded> = {<No data > fields>}, length_ = 2, arguments_ = 0x7fdc5fc4}, <No data fields>}, > isolate=0x44a038) at ../src/builtins.cc:1162 > #28 0x2ac04aac in Builtin_HandleApiCall (args={<v8::internal::Arguments> = > {<v8::internal::Embedded> = {<No data fields>}, length_ = 2, arguments_ = > 0x7fdc5fc4}, <No data fields>}, > isolate=0x44a038) at ../src/builtins.cc:1161 > #29 0x5370a0b4 in ?? () > > (gdb) up 13 > #13 0x2ab5971c in v8::internal::HeapObject::SizeFromMap (this=0x49728af9, > map=0x49728b51) at ../src/objects-inl.h:2875 > 2875 ASSERT(instance_type == CODE_TYPE); > Current language: auto; currently c++ > > (gdb) print instance_type > $1 = 50 > > -- v8-users mailing list [email protected] http://groups.google.com/group/v8-users
