It looks like I have submitted another bug report for the same issue. In my testing, the issue is the usage of newer gcc to compile libmozjs; probably wrong flags are used for armhf. Compiling the source with gcc 4.9 seems to fix this.
-Marian On Thu, 15 Dec 2016 01:07:14 +0100 Alban Browaeys <pra...@yahoo.com> wrote: > Package: libmozjs-24-0 > Version: 24.2.0-5 > Severity: important > > Dear Maintainer, > > gnome-shell ion armhf segfaults with > Thread 1 "gnome-shell" received signal SIGSEGV, Segmentation fault. > js::jit::AutoFlushCache::update (this=0x0, > newStart=newStart@entry=2776581088, len=320) at > ./js/src/jit/arm/Assembler-arm.cpp:2745 > 2745 ./js/src/jit/arm/Assembler-arm.cpp: No such file or directory. > (gdb) bt > #0 js::jit::AutoFlushCache::update (this=0x0, > newStart=newStart@entry=2776581088, len=320) at > ./js/src/jit/arm/Assembler-arm.cpp:2745 > #1 0xb57486c8 in js::jit::AutoFlushCache::updateTop (p=p@entry=2776581088, > len=<optimized out>) at ./js/src/jit/Ion.cpp:2342 > #2 0xb57b21e6 in js::jit::Assembler::executableCopy > (this=this@entry=0xbeffa3c0, buffer=0xa57f43e0 "") at > ./js/src/jit/arm/Assembler-arm.cpp:600 > #3 0xb5745f2c in js::jit::IonCode::copyFrom (this=this@entry=0xa5944b78, > masm=...) at ./js/src/jit/Ion.cpp:437 > #4 0xb570717a in js::jit::Linker::newCode (this=this@entry=0xbeffa3b8, > cx=cx@entry=0x7f6abe50, comp=<optimized out>, > kind=kind@entry=JSC::OTHER_CODE) at ./js/src/jit/IonLinker.h:59 > #5 0xb574236c in js::jit::Linker::newCode (kind=JSC::OTHER_CODE, > cx=0x7f6abe50, this=0xbeffa3b8) at ./js/src/jit/IonLinker.h:76 > #6 js::jit::IonCompartment::generateStringConcatStub > (this=this@entry=0x7f8db098, cx=cx@entry=0x7f6abe50) at > ./js/src/jit/CodeGenerator.cpp:4060 > #7 0xb5748e64 in js::jit::IonCompartment::ensureIonStubsExist > (cx=0x7f6abe50, this=<optimized out>) at ./js/src/jit/Ion.cpp:324 > #8 js::jit::IonCompile (cx=cx@entry=0x7f6abe50, script=0xa5942f80, > baselineFrame=0xbeffbbe8, osrPc=0x0, constructing=constructing@entry=false, > executionMode=js::jit::SequentialExecution) > at ./js/src/jit/Ion.cpp:1385 > #9 0xb574a12a in js::jit::Compile > (executionMode=js::jit::SequentialExecution, constructing=false, osrPc=0x0, > osrFrame=0xb6ffece8 <__stack_chk_guard>, script=..., cx=0x7f6abe50) at > ./js/src/jit/Ion.cpp:1593 > #10 js::jit::CompileFunctionForBaseline (cx=cx@entry=0x7f6abe50, > script=script@entry=..., frame=frame@entry=0xbeffbbe8, > isConstructing=<optimized out>) at ./js/src/jit/Ion.cpp:1745 > #11 0xb570e8c2 in js::jit::EnsureCanEnterIon (stub=<optimized out>, > jitcodePtr=<synthetic pointer>, pc=<optimized out>, script=..., > frame=0xbeffbbe8, cx=0x7f6abe50) at ./js/src/jit/BaselineIC.cpp:712 > #12 js::jit::DoUseCountFallback (cx=0x7f6abe50, stub=<optimized out>, > frame=0xbeffbbe8, infoPtr=0xbeffbbac) at ./js/src/jit/BaselineIC.cpp:895 > #13 0xb129c3cc in ?? () > Backtrace stopped: previous frame identical to this frame (corrupt stack?) > > > > but buildd for amrhf and armel shows that make check failed on libmozjs-24 > build -5 > https://buildd.debian.org/status/fetch.php?pkg=mozjs24&arch=armhf&ver=24.2.0-5&stamp=1481364213 > https://buildd.debian.org/status/fetch.php?pkg=mozjs24&arch=armel&ver=24.2.0-5&stamp=1481364086 > while all tests passed with -3.1 > https://buildd.debian.org/status/fetch.php?pkg=mozjs24&arch=armhf&ver=24.2.0-3.1&stamp=1468021753 > so there is an issue that is already reproducible on buildd. > but -5 on i386, arm64, mips64, mipsel, ppc64el passed all tests, amd64 is a > bin upload (no build logs). > mips and s390x as a few failures both in -3.1 and -5. > > Alban > > > -- System Information: > Debian Release: stretch/sid > APT prefers unstable-debug > APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'testing'), > (1, 'experimental-debug'), (1, 'experimental') > Architecture: armhf (armv7l) > > Kernel: Linux 4.9.0-rc3-debug+ (SMP w/4 CPU cores; PREEMPT) > Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) > Shell: /bin/sh linked to /bin/dash > Init: systemd (via /run/systemd/system) > > Versions of packages libmozjs-24-0 depends on: > ii libc6 2.24-8 > ii libffi6 3.2.1-6 > ii libgcc1 1:6.2.1-6 > ii libnspr4 2:4.12-6 > ii libstdc++6 6.2.1-6 >
