612011 - Crash [@ nanojit::Assembler::findRegFor2 ] on Android arm v6 devices

Status: RESOLVED WONTFIX

(Core Graveyard :: Nanojit, defect)

Description

[Michael Wu [:mwu]]

This appears to be the current top crash since we got crash reporting working again.

http://crash-stats.mozilla.com/report/list?product=Fennec&version=Fennec%3A4.0b3pre&query_search=signature&query_type=exact&query=&date=11%2F13%2F2010%2011%3A02%3A40&range_value=2&range_unit=days&hang_type=any&process_type=any&plugin_field=&plugin_query_type=&plugin_query=&do_query=1&admin=&signature=nanojit%3A%3AAssembler%3A%3AfindRegFor2

http://crash-stats.mozilla.com/report/index/2f0e2510-d559-4ce9-86db-716ec2101112

Comment 1

[Scoobidiver (away)]

It is #2 top crasher in Fennec 4.0b3pre for the last week.

Comment 2

[Scoobidiver (away)]

It is now #1 top crasher in Fennec 4.0b3pre for the last week.

Signature	nanojit::Assembler::findRegFor2
UUID	03805237-ac38-4cc4-9931-c5fd92101209
Time 	2010-12-09 22:55:26.382358
Uptime	35
Install Age	202 seconds (3.4 minutes) since version was first installed.
Product	Fennec
Version	4.0b3pre
Build ID	20101209041929
Branch	2.0
OS	Linux
OS Version	0.0.0 Linux 2.6.32.9-perf #1 PREEMPT Sat Sep 11 12:44:11 CST 2010 armv6l
CPU	arm
CPU Info	
Crash Reason	SIGSEGV
Crash Address	0x0
User Comments	
App Notes 	nothumb Build
HUAWEI Ideos
Huawei/U8150/U8150/U8150:2.2/FRF91/eng.huawei.20100911.122209:user/release-keys

Frame 	Module 	Signature [Expand] 	Source
0 	libxul.so 	nanojit::Assembler::findRegFor2 	js/src/nanojit/LIR.h:780
1 	libxul.so 	nanojit::Assembler::asm_cmpd 	js/src/nanojit/NativeARM.cpp:2280
2 	libxul.so 	nanojit::Assembler::asm_branch 	js/src/nanojit/NativeARM.cpp:2380
3 	libxul.so 	nanojit::Assembler::gen 	js/src/nanojit/Assembler.cpp:1406
4 	libxul.so 	nanojit::Assembler::compile 	js/src/nanojit/Assembler.cpp:1084
5 	libxul.so 	js::TraceRecorder::compile 	js/src/jstracer.cpp:4452
6 	libxul.so 	js::TraceRecorder::endLoop 	js/src/jstracer.cpp:5052
7 	libxul.so 	js::TraceRecorder::monitorRecording 	js/src/jsopcode.tbl:483
8 	libxul.so 	js::Interpret 	js/src/jsinterp.cpp:2670
9 	libxul.so 	js::Invoke 	js/src/jsinterp.cpp:657
10 	libxul.so 	js::ExternalInvoke 	js/src/jsinterp.cpp:858
11 	libxul.so 	JS_CallFunctionValue 	js/src/jsinterp.h:962
12 	libxul.so 	nsFrameMessageManager::ReceiveMessage 	content/base/src/nsFrameMessageManager.cpp:473
13 	libxul.so 	nsAsyncMessageToChild::Run 	content/base/src/nsFrameLoader.cpp:1828
14 	libxul.so 	nsThread::ProcessNextEvent 	xpcom/threads/nsThread.cpp:626
15 	libxul.so 	NS_ProcessNextEvent_P 	nsThreadUtils.cpp:250
16 	libxul.so 	mozilla::ipc::MessagePump::Run 	ipc/glue/MessagePump.cpp:110
17 	libxul.so 	MessageLoop::RunInternal 	ipc/chromium/src/base/message_loop.cc:219
18 	libxul.so 	MessageLoop::Run 	ipc/chromium/src/base/message_loop.cc:202
19 	libxul.so 	nsBaseAppShell::Run 	widget/src/xpwidgets/nsBaseAppShell.cpp:192
20 	libxul.so 	nsAppStartup::Run 	toolkit/components/startup/src/nsAppStartup.cpp:191
21 	libxul.so 	XRE_main 	toolkit/xre/nsAppRunner.cpp:3691
22 	libxul.so 	GeckoStart 	toolkit/xre/nsAndroidStartup.cpp:131
23 	libc.so 	libc.so@0x1103f 	
24 	libc.so 	libc.so@0x10b23 	

More reports at:
http://crash-stats.mozilla.com/report/list?range_value=4&range_unit=weeks&signature=nanojit%3A%3AAssembler%3A%3AfindRegFor2&version=Fennec%3A4.0b3pre

Comment 3

[Nicholas Nethercote [inactive]]

See bug 612099 comment 6 and onwards -- supposedly ARMv6 devices aren't supported, and therefore this shouldn't be a blocker.

Comment 4

[Sheila Mooney]

Nick, is this still a bug. I see related signatures but in very low volume. Are the nanojit bugs even valid. Wasn't this part of the tracer that was removed?

Comment 5

[Nicholas Nethercote [inactive]]

You're right, Nanojit was removed from Mozilla code along with the tracer, so this doesn't affect Mozilla any more.  It might still affect Adobe (they still use Nanojit) so let's keep it open.

Comment 6

[(not currently active) Ted Mielczarek]

This code isn't shipping in Firefox anymore.

Comment 7

[Benjamin Bouvier [:bbouvier] (inactive)]

Nanojit is long gone.