[Webkit-unassigned] [Bug 179479] [JSC][MIPS] Sampling Profiler crashes with functions of arity >=6
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Thu Nov 9 08:42:08 PST 2017
https://bugs.webkit.org/show_bug.cgi?id=179479
--- Comment #2 from Guillaume Emont <guijemont at igalia.com> ---
Information I get from gdb:
Program received signal SIGSEGV, Segmentation fault.
0x00000000 in ?? ()
(gdb) info registers
zero at v0 v1 a0 a1 a2 a3
R0 00000000 00000001 00000000 fffffffc 2f6f6000 2f780210 00000000 00000000
t0 t1 t2 t3 t4 t5 t6 t7
R8 000000ff 00000000 80028350 7fff6558 81010100 ffffffd0 6f662065 2f6fbcf8
s0 s1 s2 s3 s4 s5 s6 s7
R16 7fff65f8 7fff6a98 2f6f6000 2f7800a0 00d586c0 2f7b0110 2f6f6000 2f7e80d0
t8 t9 k0 k1 gp sp s8 ra
R24 00000000 00660498 00000000 00000000 00d586c0 7fff64d0 00000000 00000000
status lo hi badvaddr cause pc
00001f13 000000c8 ffffff38 00000000 00800008 00000000
fcsr fir restart
08001004 00330000 00000000
(gdb) x/64a $sp
0x7fff64d0: 0x2f780210 0xfffffffc 0x2f7f6fc0 0xfffffffb
0x7fff64e0: 0x1 0x2d4e3e1c 0x2f7e80a0 0xfffffffb
0x7fff64f0: 0x0 0xfffffffc 0x0 0xfffffffc
0x7fff6500: 0x0 0xfffffffc 0x0 0xfffffffc
0x7fff6510: 0x0 0xfffffffc 0x0 0xfffffffc
0x7fff6520: 0x0 0xfffffffc 0x2f7f6fc0 0xfffffffb
0x7fff6530: 0x0 0xfffffffc 0x2f7d40a0 0xfffffffb
0x7fff6540: 0x2f7d40a0 0xfffffffb 0x7fff6590 0x722c10 <vmEntryToJavaScript+448>
0x7fff6550: 0x2f7800a0 0x0 0x2f7f6fa0 0xfffffffb
0x7fff6560: 0x1 0x2d4d67f4 0x2f7dc340 0xfffffffb
0x7fff6570: 0x0 0xfffffffc 0x2f7e80d0 0xa704e4 <JSC::ScriptExecutable::prepareForExecutionImpl(JSC::VM&, JSC::JSFunction*, JSC::JSScope*, JSC
::CodeSpecializationKind, JSC::CodeBlock*&)+380>
0x7fff6580: 0x2f6f6000 0x0 0x0 0x2d4b228c
0x7fff6590: 0x2f6f6000 0x6c4314 <JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*)+160> 0xd586c0 0xffffffff
0x7fff65a0: 0x0 0x2f7d40a0 0xd586c0 0x7fff6648
0x7fff65b0: 0x2d4e00b0 0x7fff65b8 0x7fff6a48 0x2d4b2288
0x7fff65c0: 0x7fff65f8 0x695550 <JSC::Interpreter::executeProgram(JSC::SourceCode const&, JSC::ExecState*, JSC::JSObject*)+2508> 0x0 0x2f7b0
110
The addresses of jitted code are visible in the attached jsc-output.txt file.
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