1271167 - Crash on libunwind.dylib`libunwind::CompactUnwinder_x86_64<libunwind::LocalAddressSpace>::stepWithCompactEncodingFrameless

Status: RESOLVED WORKSFORME

(Core :: Widget: Cocoa, defect, P5)

Description

[Alastor Wu [:alwu]]

Can't run the nightly from today's build (changeset:296443:bae525a694e2)

---

Process 50062 launched: '/Users/Alastor/build_mc_obj/dist/Nightly.app/Contents/MacOS/firefox' (x86_64)
Process 50062 stopped
* thread #1: tid = 0xb27f08, 0x00007fff8970ea81 libunwind.dylib`libunwind::CompactUnwinder_x86_64<libunwind::LocalAddressSpace>::stepWithCompactEncodingFrameless(unsigned int, unsigned long long, libunwind::LocalAddressSpace&, libunwind::Registers_x86_64&, bool) + 565, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=EXC_I386_GPFLT)
    frame #0: 0x00007fff8970ea81 libunwind.dylib`libunwind::CompactUnwinder_x86_64<libunwind::LocalAddressSpace>::stepWithCompactEncodingFrameless(unsigned int, unsigned long long, libunwind::LocalAddressSpace&, libunwind::Registers_x86_64&, bool) + 565
libunwind.dylib`libunwind::CompactUnwinder_x86_64<libunwind::LocalAddressSpace>::stepWithCompactEncodingFrameless(unsigned int, unsigned long long, libunwind::LocalAddressSpace&, libunwind::Registers_x86_64&, bool) + 565:
-> 0x7fff8970ea81:  movq   (%rax), %rdx
   0x7fff8970ea84:  movq   %rdx, 0x8(%rcx)
   0x7fff8970ea88:  jmp    0x7fff8970eab5            ; libunwind::CompactUnwinder_x86_64<libunwind::LocalAddressSpace>::stepWithCompactEncodingFrameless(unsigned int, unsigned long long, libunwind::LocalAddressSpace&, libunwind::Registers_x86_64&, bool) + 617
   0x7fff8970ea8a:  movq   (%rax), %rdx

Comment 1

[Alastor Wu [:alwu]]

Attachment: Crash stack

Comment 2

[Alastor Wu [:alwu]]

BTW, I'm using OSX 10.9.5.

Comment 3

[Alastor Wu [:alwu]]

It seems that broke for a while.... because I can't run the nightly even I reverted my version to the changeset:296111.

Comment 4

[Sylvestre Ledru [:Sylvestre]]

Decreasing the priority as no update for the last 2 years on this bug.
See https://github.com/mozilla/bug-handling/blob/master/policy/triage-bugzilla.md#how-do-you-triage 
about the priority meaning.

Comment 5

[Stephen A Pohl [:spohl] (OOO until 9/11)]

Are you still experiencing this issue?

Comment 6

[Alastor Wu [:alwu]]

No, I haven't seen this issue for a long while.