Closed
Bug 1700687
Opened 4 years ago
Closed 1 month ago
Intermittent PROCESS-CRASH | Main app process exited normally | application crashed [@ mozilla::ipc::SharedMemory::SystemProtect]
Categories
(Core :: IPC, defect)
Core
IPC
Tracking
()
RESOLVED
INCOMPLETE
People
(Reporter: intermittent-bug-filer, Unassigned)
Details
(Keywords: crash, intermittent-failure)
Crash Data
Filed by: ncsoregi [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=334297085&repo=mozilla-central
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/ezeFjWxARUmYoIb7X03xeg/runs/0/artifacts/public/logs/live_backing.log
[task 2021-03-24T16:51:03.640Z] 16:51:03 INFO - PROCESS-CRASH | Main app process exited normally | application crashed [@ mozilla::ipc::SharedMemory::SystemProtect(char*, unsigned long, int)]
[task 2021-03-24T16:51:03.640Z] 16:51:03 INFO - Mozilla crash reason: MOZ_CRASH(can't mprotect())
[task 2021-03-24T16:51:03.641Z] 16:51:03 INFO - Crash dump filename: /tmp/tmpdMJTBQ.mozrunner/minidumps/058c9150-3a20-4c42-3f11-40761add1668.dmp
[task 2021-03-24T16:51:03.641Z] 16:51:03 INFO - Operating system: Linux
[task 2021-03-24T16:51:03.642Z] 16:51:03 INFO - 0.0.0 Linux 4.4.0-1014-aws #14taskcluster1-Ubuntu SMP Tue Apr 3 10:27:00 UTC 2018 x86_64
[task 2021-03-24T16:51:03.642Z] 16:51:03 INFO - CPU: amd64
[task 2021-03-24T16:51:03.642Z] 16:51:03 INFO - family 6 model 85 stepping 7
[task 2021-03-24T16:51:03.643Z] 16:51:03 INFO - 2 CPUs
[task 2021-03-24T16:51:03.643Z] 16:51:03 INFO -
[task 2021-03-24T16:51:03.643Z] 16:51:03 INFO - GPU: UNKNOWN
[task 2021-03-24T16:51:03.643Z] 16:51:03 INFO -
[task 2021-03-24T16:51:03.643Z] 16:51:03 INFO - Crash reason: SIGSEGV /SEGV_MAPERR
[task 2021-03-24T16:51:03.643Z] 16:51:03 INFO - Crash address: 0x0
[task 2021-03-24T16:51:03.643Z] 16:51:03 INFO - Process uptime: not available
[task 2021-03-24T16:51:03.643Z] 16:51:03 INFO -
[task 2021-03-24T16:51:03.643Z] 16:51:03 INFO - Thread 12 (crashed)
[task 2021-03-24T16:51:03.643Z] 16:51:03 INFO - 0 libxul.so!mozilla::ipc::SharedMemory::SystemProtect(char*, unsigned long, int) [SharedMemory_posix.cpp:3afbfb073c46dd4597a862cc683d5e0fbcfdd90d : 25 + 0x29]
[task 2021-03-24T16:51:03.644Z] 16:51:03 INFO - rax = 0x00007efe8e660c23 rdx = 0x0000000000000000
[task 2021-03-24T16:51:03.644Z] 16:51:03 INFO - rcx = 0x000055efc03f90b8 rbx = 0x0000000000001000
[task 2021-03-24T16:51:03.645Z] 16:51:03 INFO - rsi = 0x00007efea245e8b0 rdi = 0x00007efea245d680
[task 2021-03-24T16:51:03.645Z] 16:51:03 INFO - rbp = 0x00007efe84ecd7d0 rsp = 0x00007efe84ecd7d0
[task 2021-03-24T16:51:03.646Z] 16:51:03 INFO - r8 = 0x00007efea245e8b0 r9 = 0x00007efe84ece700
[task 2021-03-24T16:51:03.646Z] 16:51:03 INFO - r10 = 0x0000000000000000 r11 = 0x0000000000000000
[task 2021-03-24T16:51:03.647Z] 16:51:03 INFO - r12 = 0x00007efe75a36150 r13 = 0x00007efe84ecd890
[task 2021-03-24T16:51:03.647Z] 16:51:03 INFO - r14 = 0x00000000000170a4 r15 = 0x00007efe84ecd890
[task 2021-03-24T16:51:03.648Z] 16:51:03 INFO - rip = 0x00007efe91a03151
[task 2021-03-24T16:51:03.648Z] 16:51:03 INFO - Found by: given as instruction pointer in context
[task 2021-03-24T16:51:03.648Z] 16:51:03 INFO - 1 libxul.so!mozilla::ipc::Shmem::Shmem(mozilla::ipc::Shmem::PrivateIPDLCaller, mozilla::ipc::SharedMemory*, int) [Shmem.cpp:3afbfb073c46dd4597a862cc683d5e0fbcfdd90d : 246 + 0x19]
[task 2021-03-24T16:51:03.649Z] 16:51:03 INFO - rbx = 0x0000000000001000 rbp = 0x00007efe84ecd830
[task 2021-03-24T16:51:03.649Z] 16:51:03 INFO - rsp = 0x00007efe84ecd7e0 r12 = 0x00007efe75a36150
[task 2021-03-24T16:51:03.649Z] 16:51:03 INFO - r13 = 0x00007efe84ecd890 r14 = 0x00000000000170a4
[task 2021-03-24T16:51:03.650Z] 16:51:03 INFO - r15 = 0x00007efe84ecd890 rip = 0x00007efe91a03298
[task 2021-03-24T16:51:03.650Z] 16:51:03 INFO - Found by: call frame info
[task 2021-03-24T16:51:03.650Z] 16:51:03 INFO - 2 libxul.so!mozilla::ipc::IToplevelProtocol::CreateSharedMemory(unsigned long, mozilla::ipc::SharedMemory::SharedMemoryType, bool, int*) [ProtocolUtils.cpp:3afbfb073c46dd4597a862cc683d5e0fbcfdd90d : 752 + 0x22]
[task 2021-03-24T16:51:03.651Z] 16:51:03 INFO - rbx = 0x00007efe84ecd890 rbp = 0x00007efe84ecd8e0
[task 2021-03-24T16:51:03.651Z] 16:51:03 INFO - rsp = 0x00007efe84ecd840 r12 = 0x00007efe8b534800
[task 2021-03-24T16:51:03.651Z] 16:51:03 INFO - r13 = 0x00007efe84ecd890 r14 = 0x00007efe75a36150
[task 2021-03-24T16:51:03.652Z] 16:51:03 INFO - r15 = 0x00007efe84ecd8f4 rip = 0x00007efe919f74d5
[task 2021-03-24T16:51:03.652Z] 16:51:03 INFO - Found by: call frame info
[task 2021-03-24T16:51:03.652Z] 16:51:03 INFO - 3 libxul.so!mozilla::ipc::IProtocol::AllocUnsafeShmem(unsigned long, mozilla::ipc::SharedMemory::SharedMemoryType, mozilla::ipc::Shmem*) [ProtocolUtils.cpp:3afbfb073c46dd4597a862cc683d5e0fbcfdd90d : 480 + 0xe]
[task 2021-03-24T16:51:03.652Z] 16:51:03 INFO - rbx = 0x00007efe844433c0 rbp = 0x00007efe84ecd930
[task 2021-03-24T16:51:03.652Z] 16:51:03 INFO - rsp = 0x00007efe84ecd8f0 r12 = 0x000000000001c200
[task 2021-03-24T16:51:03.652Z] 16:51:03 INFO - r13 = 0x00007efe8b534800 r14 = 0x0000000000000001
[task 2021-03-24T16:51:03.652Z] 16:51:03 INFO - r15 = 0x0000000000000000 rip = 0x00007efe919f805c
[task 2021-03-24T16:51:03.653Z] 16:51:03 INFO - Found by: call frame info
[task 2021-03-24T16:51:03.653Z] 16:51:03 INFO - 4 libxul.so!mozilla::layers::ImageBridgeChild::ProxyAllocShmemNow(mozilla::layers::SynchronousTask*, unsigned long, mozilla::ipc::SharedMemory::SharedMemoryType, mozilla::ipc::Shmem*, bool, bool*) [ImageBridgeChild.cpp:3afbfb073c46dd4597a862cc683d5e0fbcfdd90d : 735 + 0x5]
[task 2021-03-24T16:51:03.653Z] 16:51:03 INFO - rbx = 0x00007efe84443310 rbp = 0x00007efe84ecd980
[task 2021-03-24T16:51:03.654Z] 16:51:03 INFO - rsp = 0x00007efe84ecd940 r12 = 0x000000000001c200
[task 2021-03-24T16:51:03.654Z] 16:51:03 INFO - r13 = 0x00007efe8b534800 r14 = 0x0000000000000001
[task 2021-03-24T16:51:03.654Z] 16:51:03 INFO - r15 = 0x0000000000000000 rip = 0x00007efe92206d23
[task 2021-03-24T16:51:03.654Z] 16:51:03 INFO - Found by: call frame info
[task 2021-03-24T16:51:03.654Z] 16:51:03 INFO - 5 libxul.so!mozilla::runnable_args_memfn<RefPtr<mozilla::layers::ImageBridgeChild>, void (mozilla::layers::ImageBridgeChild::*)(mozilla::layers::SynchronousTask*, unsigned long, mozilla::ipc::SharedMemory::SharedMemoryType, mozilla::ipc::Shmem*, bool, bool*), mozilla::layers::SynchronousTask*, unsigned long, mozilla::ipc::SharedMemory::SharedMemoryType, mozilla::ipc::Shmem*, bool, bool*>::RunInternal() [runnable_utils.h:3afbfb073c46dd4597a862cc683d5e0fbcfdd90d : 121 + 0x36]
[task 2021-03-24T16:51:03.654Z] 16:51:03 INFO - rbx = 0x00007efe92206ccc rbp = 0x00007efe84ecd9e0
[task 2021-03-24T16:51:03.654Z] 16:51:03 INFO - rsp = 0x00007efe84ecd990 r12 = 0x000000000001c200
[task 2021-03-24T16:51:03.655Z] 16:51:03 INFO - r13 = 0x00007efe84443310 r14 = 0x0000000000000000
[task 2021-03-24T16:51:03.655Z] 16:51:03 INFO - r15 = 0x00007efe8b482801 rip = 0x00007efe9221c33b
[task 2021-03-24T16:51:03.655Z] 16:51:03 INFO - Found by: call frame info
[task 2021-03-24T16:51:03.655Z] 16:51:03 INFO - 6 libxul.so!mozilla::detail::runnable_args_base<(mozilla::detail::RunnableResult)0>::Run() [runnable_utils.h:3afbfb073c46dd4597a862cc683d5e0fbcfdd90d : 41 + 0x6]
[task 2021-03-24T16:51:03.655Z] 16:51:03 INFO - rbx = 0x00007efe75a39080 rbp = 0x00007efe84ecda00
[task 2021-03-24T16:51:03.655Z] 16:51:03 INFO - rsp = 0x00007efe84ecd9f0 r12 = 0x00007efe84ecda40
[task 2021-03-24T16:51:03.655Z] 16:51:03 INFO - r13 = 0x0000000000000001 r14 = 0x00007efe8b482760
[task 2021-03-24T16:51:03.655Z] 16:51:03 INFO - r15 = 0x00007efe8b482830 rip = 0x00007efe9198bf28
[task 2021-03-24T16:51:03.655Z] 16:51:03 INFO - Found by: call frame info
[task 2021-03-24T16:51:03.656Z] 16:51:03 INFO - 7 libxul.so!nsThread::ProcessNextEvent(bool, bool*) [nsThread.cpp:3afbfb073c46dd4597a862cc683d5e0fbcfdd90d : 1149 + 0x11]
[task 2021-03-24T16:51:03.656Z] 16:51:03 INFO - rbx = 0x00007efe84ecdab0 rbp = 0x00007efe84ecdb40
[task 2021-03-24T16:51:03.656Z] 16:51:03 INFO - rsp = 0x00007efe84ecda10 r12 = 0x00007efe84ecda40
[task 2021-03-24T16:51:03.656Z] 16:51:03 INFO - r13 = 0x0000000000000001 r14 = 0x00007efe8b482760
[task 2021-03-24T16:51:03.656Z] 16:51:03 INFO - r15 = 0x00007efe8b482830 rip = 0x00007efe9138e872
[task 2021-03-24T16:51:03.656Z] 16:51:03 INFO - Found by: call frame info
[task 2021-03-24T16:51:03.656Z] 16:51:03 INFO - 8 libxul.so!NS_ProcessNextEvent(nsIThread*, bool) [nsThreadUtils.cpp:3afbfb073c46dd4597a862cc683d5e0fbcfdd90d : 548 + 0xc]
[task 2021-03-24T16:51:03.656Z] 16:51:03 INFO - rbx = 0x0000000000000001 rbp = 0x00007efe84ecdb70
[task 2021-03-24T16:51:03.656Z] 16:51:03 INFO - rsp = 0x00007efe84ecdb50 r12 = 0x0000000000000000
[task 2021-03-24T16:51:03.656Z] 16:51:03 INFO - r13 = 0x00007efe8bfa4ca0 r14 = 0x00007efe84ecdb57
[task 2021-03-24T16:51:03.657Z] 16:51:03 INFO - r15 = 0x00007efe8b482760 rip = 0x00007efe91392f52
[task 2021-03-24T16:51:03.657Z] 16:51:03 INFO - Found by: call frame info
[task 2021-03-24T16:51:03.657Z] 16:51:03 INFO - 9 libxul.so!mozilla::ipc::MessagePumpForNonMainThreads::Run(base::MessagePump::Delegate*) [MessagePump.cpp:3afbfb073c46dd4597a862cc683d5e0fbcfdd90d : 332 + 0xd]
[task 2021-03-24T16:51:03.657Z] 16:51:03 INFO - rbx = 0x00007efe84ecdc68 rbp = 0x00007efe84ecdbc0
[task 2021-03-24T16:51:03.657Z] 16:51:03 INFO - rsp = 0x00007efe84ecdb80 r12 = 0x0000000000000000
[task 2021-03-24T16:51:03.657Z] 16:51:03 INFO - r13 = 0x00007efe8bfa4ca0 r14 = 0x00007efe8bfa4c80
[task 2021-03-24T16:51:03.657Z] 16:51:03 INFO - r15 = 0x00007efe8b482760 rip = 0x00007efe919f4d93
[task 2021-03-24T16:51:03.658Z] 16:51:03 INFO - Found by: call frame info
[task 2021-03-24T16:51:03.658Z] 16:51:03 INFO - 10 libxul.so!MessageLoop::RunInternal() [message_loop.cc:3afbfb073c46dd4597a862cc683d5e0fbcfdd90d : 335 + 0x17]
[task 2021-03-24T16:51:03.658Z] 16:51:03 INFO - rbx = 0x00007efe84ecdc68 rbp = 0x00007efe84ecdc00
[task 2021-03-24T16:51:03.658Z] 16:51:03 INFO - rsp = 0x00007efe84ecdbd0 r12 = 0x00007efe84ecdc68
[task 2021-03-24T16:51:03.659Z] 16:51:03 INFO - r13 = 0x00007efe8b482760 r14 = 0x00007efe84ecdc10
[task 2021-03-24T16:51:03.659Z] 16:51:03 INFO - r15 = 0x00007efe8b4827a8 rip = 0x00007efe9199d267
[task 2021-03-24T16:51:03.659Z] 16:51:03 INFO - Found by: call frame info
[task 2021-03-24T16:51:03.660Z] 16:51:03 INFO - 11 libxul.so!MessageLoop::Run() [message_loop.cc:3afbfb073c46dd4597a862cc683d5e0fbcfdd90d : 310 + 0x8]
[task 2021-03-24T16:51:03.660Z] 16:51:03 INFO - rbx = 0x00007efe84ecdc68 rbp = 0x00007efe84ecdc40
[task 2021-03-24T16:51:03.660Z] 16:51:03 INFO - rsp = 0x00007efe84ecdc10 r12 = 0x00007efe84ecdc68
[task 2021-03-24T16:51:03.660Z] 16:51:03 INFO - r13 = 0x00007efe8b482760 r14 = 0x00007efe84ecdc10
[task 2021-03-24T16:51:03.660Z] 16:51:03 INFO - r15 = 0x00007efe8b4827a8 rip = 0x00007efe9199d1c1
[task 2021-03-24T16:51:03.660Z] 16:51:03 INFO - Found by: call frame info
[task 2021-03-24T16:51:03.660Z] 16:51:03 INFO - 12 libxul.so!nsThread::ThreadFunc(void*) [nsThread.cpp:3afbfb073c46dd4597a862cc683d5e0fbcfdd90d : 391 + 0x8]
[task 2021-03-24T16:51:03.660Z] 16:51:03 INFO - rbx = 0x000000000000000f rbp = 0x00007efe84ecde60
[task 2021-03-24T16:51:03.660Z] 16:51:03 INFO - rsp = 0x00007efe84ecdc50 r12 = 0x00007efe84ecdc68
[task 2021-03-24T16:51:03.660Z] 16:51:03 INFO - r13 = 0x00007efe8b482760 r14 = 0x00007efe8b4827b0
[task 2021-03-24T16:51:03.661Z] 16:51:03 INFO - r15 = 0x00007efe8b4827a8 rip = 0x00007efe9138beb9
[task 2021-03-24T16:51:03.661Z] 16:51:03 INFO - Found by: call frame info
[task 2021-03-24T16:51:03.661Z] 16:51:03 INFO - 13 libnspr4.so!_pt_root [ptthread.c:3afbfb073c46dd4597a862cc683d5e0fbcfdd90d : 201 + 0x7]
[task 2021-03-24T16:51:03.661Z] 16:51:03 INFO - rbx = 0x00007efe8b4745e0 rbp = 0x00007efe84ecdeb0
[task 2021-03-24T16:51:03.662Z] 16:51:03 INFO - rsp = 0x00007efe84ecde70 r12 = 0x00007efe84ece630
[task 2021-03-24T16:51:03.662Z] 16:51:03 INFO - r13 = 0x0000000000000002 r14 = 0x0000000000000e2b
[task 2021-03-24T16:51:03.662Z] 16:51:03 INFO - r15 = 0x00007efe84ece700 rip = 0x00007efea339b622
[task 2021-03-24T16:51:03.663Z] 16:51:03 INFO - Found by: call frame info
[task 2021-03-24T16:51:03.663Z] 16:51:03 INFO - 14 libpthread.so.0 + 0x76db
[task 2021-03-24T16:51:03.663Z] 16:51:03 INFO - rbx = 0x0000000000000000 rbp = 0x0000000000000000
[task 2021-03-24T16:51:03.664Z] 16:51:03 INFO - rsp = 0x00007efe84ecdec0 r12 = 0x00007efe84ecdf80
[task 2021-03-24T16:51:03.664Z] 16:51:03 INFO - r13 = 0x0000000000000000 r14 = 0x00007efe8b4745e0
[task 2021-03-24T16:51:03.664Z] 16:51:03 INFO - r15 = 0x00007ffea5cd9a80 rip = 0x00007efea2fac6db
[task 2021-03-24T16:51:03.664Z] 16:51:03 INFO - Found by: call frame info
[task 2021-03-24T16:51:03.664Z] 16:51:03 INFO - 15 [stack] + 0x1ca80
[task 2021-03-24T16:51:03.664Z] 16:51:03 INFO - rsp = 0x00007efe84ecdf00 rip = 0x00007ffea5cd9a80
[task 2021-03-24T16:51:03.665Z] 16:51:03 INFO - Found by: stack scanning
[task 2021-03-24T16:51:03.665Z] 16:51:03 INFO - 16 libc.so.6 + 0x121a3f
[task 2021-03-24T16:51:03.665Z] 16:51:03 INFO - rsp = 0x00007efe84ecdf80 rip = 0x00007efea2192a3f
[task 2021-03-24T16:51:03.665Z] 16:51:03 INFO - Found by: stack scanning
[task 2021-03-24T16:51:03.666Z] 16:51:03 INFO - ```
|
||
Comment 1•4 years ago
|
||
During:
[task 2021-03-24T16:39:20.761Z] 16:39:20 INFO - TEST-START | dom/media/webrtc/tests/mochitests/test_fingerprinting_resistance.html
|
||
Comment 2•4 years ago
|
||
MOZ_CRASH("can't mprotect()"); while trying to set one of the “sentinel” guard pages before/after the shmem contents to PROT_NONE, which suggests that it exceeded the limit of 64k virtual memory areas. This is confirmed by the minidump: 65532 lines in the MD_LINUX_MAPS stream. We'd need to get rid of those guard pages, which we don't use on non-debug builds if I recall correctly (and I don't know if they've ever actually caught any bugs); I'd been thinking of doing this anyway to reduce the code complexity.
It's also a little worrying that we're only a 3x safety factor from having a crash that we can't do anything about; if shared memory areas were tagged with strings identifying the users we could at least see what subsystem may need to economize.
| Comment hidden (Intermittent Failures Robot) |
|
||
Updated•2 years ago
|
Crash Signature: [@ mozilla::ipc::SharedMemory::SystemProtect(char*, unsigned long, int)] → [@ mozilla::ipc::SharedMemory::SystemProtect]
Summary: Intermittent PROCESS-CRASH | Main app process exited normally | application crashed [@ mozilla::ipc::SharedMemory::SystemProtect(char*, unsigned long, int)] → Intermittent PROCESS-CRASH | Main app process exited normally | application crashed [@ mozilla::ipc::SharedMemory::SystemProtect]
|
||
Comment 4•1 month ago
|
||
https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
For more information, please visit BugBot documentation.
Status: NEW → RESOLVED
Closed: 1 month ago
Resolution: --- → INCOMPLETE
You need to log in
before you can comment on or make changes to this bug.
Description
•