Comment 15 for bug 1387959
Revision history for this message
| Bill Filler (bfiller) wrote Re: unity8 crash in image krillin rtm 139 | #15 |
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7020100
(Get the code!)
I just rebooted the phone and attached to unity8 with gdb:
- sudo gdb --pid XXXX /usr/bin/unity8
First strange thing noticed, after typing continue in gdb, I see Threads endlessly being created and destroyed, this never stops:
[New Thread 0xa18d2450 (LWP 11331)]
[Thread 0xa18d2450 (LWP 11331) exited]
repeated continously..
Then I use the phone, call it a few times. Finally it crashes. Gdb shows me:
Program received signal SIGSEGV, Segmentation fault.
0xb61d342a in _int_malloc (av=av@
at malloc.c:3351
3351 malloc.c: No such file or directory.
(gdb)
Continuing.
[Thread 0x9a905450 (LWP 11767) exited]
[Thread 0xa18d2450 (LWP 11434) exited]
[Thread 0xb37e0450 (LWP 2488) exited]
[Thread 0xb2fe0450 (LWP 2489) exited]
[Thread 0xb2729450 (LWP 2494) exited]
[Thread 0xb1c02450 (LWP 2497) exited]
[Thread 0xb12feb40 (LWP 2498) exited]
[Thread 0xb12f8450 (LWP 2499) exited]
[Thread 0xb0af8450 (LWP 2500) exited]
[Thread 0xb00b2450 (LWP 2501) exited]
[Thread 0xaf6ff450 (LWP 2502) exited]
[Thread 0xaecff450 (LWP 2503) exited]
[Thread 0xae4ff450 (LWP 2504) exited]
[Thread 0xac522450 (LWP 2540) exited]
[Thread 0xabd22450 (LWP 2547) exited]
[Thread 0xaaa5f450 (LWP 2621) exited]
[Thread 0xa93ec450 (LWP 2674) exited]
[Thread 0xa8425450 (LWP 2788) exited]
[Thread 0xa761c450 (LWP 2797) exited]
[Thread 0xa5e62450 (LWP 2805) exited]
[Thread 0xa46fc450 (LWP 2831) exited]
[Thread 0xa3e92450 (LWP 2832) exited]
[Thread 0xa3692450 (LWP 2833) exited]
[Thread 0xa2e91450 (LWP 2874) exited]
[Thread 0xa10d2450 (LWP 2907) exited]
[Thread 0xa08d2450 (LWP 2908) exited]
[Thread 0xa00d2450 (LWP 2909) exited]
[Thread 0x9f285450 (LWP 3037) exited]
[Thread 0x9c105450 (LWP 3039) exited]
[Thread 0x9b905450 (LWP 3040) exited]
[Thread 0x9b105450 (LWP 3041) exited]
[Thread 0xb6fc8000 (LWP 2454) exited]
Program terminated with signal SIGSEGV, Segmentation fault.
The program no longer exists.
(gdb) break
Breakpoint 1 at 0xb61d342a: file malloc.c, line 3351.
So I believe we are running out of memory because of all these threads being created. I do not know how to determine who is creating the threads or why, but assuming this is the issue. Saw the exact same thing when attaching to system-settings after unity8 crashed.