1590711 - Crash in [@ __memcpy_sse2_unaligned_erms | mozilla::AudioStream::DataCallback]

Status: RESOLVED DUPLICATE of bug 1612454

(Core :: Audio/Video, defect, P2)

Description

[Pascal Chevrel:pascalc (PTO until April 26)]

This bug is for crash report bp-33c0ae75-f148-402b-a14b-75ee40191023.

Top 9 frames of crashing thread:

0 libc-2.29.so __memcpy_sse2_unaligned_erms 
1 libxul.so mozilla::AudioStream::DataCallback dom/media/AudioStream.cpp:595
2 libxul.so <futures_cpupool::MySender<F, core::result::Result<<F as futures::future::Future>::Item, <F as futures::future::Future>::Error>> as futures::future::Future>::poll third_party/rust/futures-cpupool/src/lib.rs:325
3 libxul.so std::sys_common::backtrace::__rust_begin_short_backtrace src/libstd/sys_common/backtrace.rs:77
4 libxul.so core::ops::function::FnOnce::call_once{{vtable.shim}} src/libcore/ops/function.rs:231
5 libxul.so <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once src/liballoc/boxed.rs:746
6 libxul.so std::sys::unix::thread::Thread::new::thread_start src/libstd/sys/unix/thread.rs:79
7 libpthread-2.29.so start_thread /build/glibc-KRRWSm/glibc-2.29/nptl/pthread_create.c:486
8 libc-2.29.so __GI___clone 

I am seeing a little spike of linux crashes in 71.0b2/b3 and we don't have a bug on file for this crash signature.

Comment 1

[Bryce Seager van Dyk [:bryce] (he/him) - Not reading bugmail]

Paul, is this something you could help me triage/have any further insight into?

Comment 2

[Paul Adenot (:padenot)]

This is a SIGBUS. We're probably writing past the shared memory region somehow. It would be good to have a minidump for this.

Matthew, this is probably related to IPC, any idea what's going on? It doesn't seem to be only in the last cycle.

Comment 3

[Matthew Gregan [:kinetik]]

This will be addressed in bug 1612454.