Closed Bug 379941 Opened 17 years ago Closed 15 years ago

Mozilla hangs with 99% CPU

Categories

(Firefox :: General, defect)

Product:
Firefox
Component:
General
Version:
3.0 Branch
Platform:
x86
Linux
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED INVALID

People

(Reporter: linuxhippy, Unassigned)

References

(
URL
)

Details

(Keywords: perf) 

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a4) Gecko/20070427 GranParadiso/3.0a4
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a4) Gecko/20070427 GranParadiso/3.0a4

While writing a comment on the blog-site mentioned above I minimized mozilla to chat with a friend over ICQ. 
When I made FireFox visible again its window did not react and it consumed 99% CPU.

I made a stack-trace, maybe full stacktraces can be generated using talkback-debug-information:

Thread 7 (Thread -1215018096 (LWP 5894)):
#0  0xb7f25410 in __kernel_vsyscall ()
#1  0x0090f6d3 in poll () from /lib/libc.so.6
#2  0xb7db2ccf in PR_OpenDir () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0x080b8dd2 in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#4  0x080b93ae in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#5  0x080b9142 in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#6  0xb7e45218 in nsThread::PutEvent ()
#7  0xb7e11524 in NS_ProcessNextEvent_P ()
#8  0x080b9205 in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#9  0xb7e4527a in nsThread::PutEvent ()
#10 0xb7e11524 in NS_ProcessNextEvent_P ()
#11 0xb7e44ae3 in nsThread::ThreadFunc ()
#12 0xb7db3ea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#13 0x00af73db in start_thread () from /lib/libpthread.so.0
#14 0x0091926e in clone () from /lib/libc.so.6
Thread 6 (Thread -1223623792 (LWP 5895)):
#0  0xb7f25410 in __kernel_vsyscall ()
#1  0x00afb42c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
#2  0xb7daf8df in PR_Unlock () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0xb7dafa69 in PR_WaitCondVar ()
#4  0xb7e48122 in TimerThread::UpdateFilter ()
#5  0xb7e4527a in nsThread::PutEvent ()
#6  0xb7e11524 in NS_ProcessNextEvent_P ()
#7  0xb7e44ae3 in nsThread::ThreadFunc ()
#8  0xb7db3ea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#9  0x00af73db in start_thread () from /lib/libpthread.so.0
#10 0x0091926e in clone () from /lib/libc.so.6
Thread 5 (Thread -1262494832 (LWP 5901)):
#0  0xb7f25410 in __kernel_vsyscall ()
#1  0x00afb1a6 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb7dafacd in PR_WaitCondVar ()
#3  0x0816e1c4 in nsReadingIterator<char>::advance ()
#4  0x0816e255 in nsReadingIterator<char>::advance ()
#5  0xb7e4527a in nsThread::PutEvent ()
#6  0xb7e11524 in NS_ProcessNextEvent_P ()
#7  0xb7e44ae3 in nsThread::ThreadFunc ()
#8  0xb7db3ea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#9  0x00af73db in start_thread () from /lib/libpthread.so.0
#10 0x0091926e in clone () from /lib/libc.so.6
Thread 4 (Thread -1245709424 (LWP 5904)):
#0  0xb7f25410 in __kernel_vsyscall ()
#1  0x00afb42c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
#2  0xb7daf8df in PR_Unlock () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0xb7dafa69 in PR_WaitCondVar ()
#4  0x08792169 in nsAutoMonitor::~nsAutoMonitor ()
#5  0x087912bb in nsAutoMonitor::~nsAutoMonitor ()
#6  0xb7db3ea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#7  0x00af73db in start_thread () from /lib/libpthread.so.0
#8  0x0091926e in clone () from /lib/libc.so.6
Thread 3 (Thread -1254102128 (LWP 5905)):
#0  0xb7f25410 in __kernel_vsyscall ()
#1  0x00afb42c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
#2  0xb7daf8df in PR_Unlock () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0xb7dafa69 in PR_WaitCondVar ()
#4  0x0877e325 in nsAutoMonitor::~nsAutoMonitor ()
#5  0x087912bb in nsAutoMonitor::~nsAutoMonitor ()
#6  0xb7db3ea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#7  0x00af73db in start_thread () from /lib/libpthread.so.0
#8  0x0091926e in clone () from /lib/libc.so.6
Thread 2 (Thread -1289749616 (LWP 5914)):
#0  0xb7f25410 in __kernel_vsyscall ()
#1  0x00afb1a6 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb7dafacd in PR_WaitCondVar ()
#3  0xb7dafd24 in PR_Wait () from /home/ce/Programme/FireFox3A4/libnspr4.so
#4  0xb7e43d5b in nsEventQueue::GetEvent ()
#5  0xb7e45254 in nsThread::PutEvent ()
#6  0xb7e11524 in NS_ProcessNextEvent_P ()
#7  0xb7e44ae3 in nsThread::ThreadFunc ()
#8  0xb7db3ea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#9  0x00af73db in start_thread () from /lib/libpthread.so.0
#10 0x0091926e in clone () from /lib/libc.so.6
Thread 1 (Thread -1212315968 (LWP 5893)):
#0  0xb7e50800 in nsCycleCollector_forget ()
#1  0x08401d8d in nsReadingIterator<unsigned short>::advance ()
#2  0x08401731 in nsReadingIterator<unsigned short>::advance ()
#3  0x0860f54d in nsXPTCVariant::Init ()
#4  0x085fa7a6 in nsXPTCVariant::Init ()
#5  0x087602a2 in nsAutoMonitor::~nsAutoMonitor ()
#6  0x085faf69 in nsXPTCVariant::Init ()
#7  0x085fa626 in nsXPTCVariant::Init ()
#8  0x085fa200 in nsXPTCVariant::Init ()
#9  0x080ac47f in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#10 0x081d955f in XmlInitUnknownEncodingNS ()
#11 0x081d6b42 in XmlInitUnknownEncodingNS ()
#12 0x08351410 in nsPRUint32Key::Clone ()
#13 0x08376331 in nsReadingIterator<unsigned short>::advance ()
#14 0x08376276 in nsReadingIterator<unsigned short>::advance ()
#15 0x083afd57 in nsReadingIterator<unsigned short>::advance ()
#16 0x083a926e in nsReadingIterator<unsigned short>::advance ()
#17 0x083af610 in nsReadingIterator<unsigned short>::advance ()
#18 0xb7e510ab in NS_InvokeByIndex_P ()
#19 0x08139fa2 in nsReadingIterator<char>::advance ()
#20 0x0813f298 in nsReadingIterator<char>::advance ()
#21 0xb7eb96e8 in js_Invoke () from /home/ce/Programme/FireFox3A4/libmozjs.so
#22 0xb7eb9b1d in js_InternalInvoke ()
#23 0xb7eb9c18 in js_InternalGetOrSet ()
#24 0xb7ecf469 in js_SetProperty ()
#25 0xb7ebdf60 in js_Interpret ()
#26 0xb7eb97b9 in js_Invoke () from /home/ce/Programme/FireFox3A4/libmozjs.so
#27 0xb7eb9b1d in js_InternalInvoke ()
#28 0xb7e95876 in JS_CallFunctionValue ()
#29 0x083fd2dd in nsReadingIterator<unsigned short>::advance ()
#30 0x08429e15 in nsReadingIterator<unsigned short>::advance ()
#31 0x0839405a in nsReadingIterator<unsigned short>::advance ()
#32 0x0839445e in nsReadingIterator<unsigned short>::advance ()
#33 0x083a4658 in nsReadingIterator<unsigned short>::advance ()
#34 0x083a4752 in nsReadingIterator<unsigned short>::advance ()
#35 0x083a4ba8 in nsReadingIterator<unsigned short>::advance ()
#36 0x0837695a in nsReadingIterator<unsigned short>::advance ()
#37 0xb7e4527a in nsThread::PutEvent ()
#38 0xb7e11524 in NS_ProcessNextEvent_P ()
#39 0x08204ab2 in XmlInitUnknownEncodingNS ()
#40 0x0874249c in nsAutoMonitor::~nsAutoMonitor ()
#41 0x08077d9f in gtk_widget_grab_focus ()
#42 0x08b28580 in ?? ()
#43 0xbfda48c8 in ?? ()
#44 0x00000000 in ?? ()
#0  0xb7e50800 in nsCycleCollector_forget ()


Reproducible: Couldn't Reproduce

Steps to Reproduce:
1.
2.
3.
Actual Results:  
Mozilla crashed using 99% cpu

Expected Results:  
should work
your stack trace isn't valid because you don't have symbols, in the future please don't paste such stack traces (rebuild --enable-debugger-info-modules or --enable-debug if you want usable stack traces).
1.) well if mozilla.org would deploy builds with debug-information in it I would post the stack-traces with debug-information.

2.) Furthermore talkback is able to recontruct symbols just from the adresses, so why isn't this possible here?

3.) #0  0xb7e50800 in nsCycleCollector_forget ()
but wthe adresses are resolved to method names right? To be honest I don't understand the problem.

lg Clemens
It happened again two times:

[ce@localhost ~]$ pstack 2963
Thread 9 (Thread -1214461040 (LWP 2964)):
#0  0xb7fad410 in __kernel_vsyscall ()
#1  0x0090f6d3 in poll () from /lib/libc.so.6
#2  0xb7e3accf in PR_OpenDir () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0x080b8dd2 in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#4  0x080b93ae in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#5  0x080b9142 in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#6  0xb7ecd218 in nsThread::PutEvent ()
#7  0xb7e99524 in NS_ProcessNextEvent_P ()
#8  0x080b9205 in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#9  0xb7ecd27a in nsThread::PutEvent ()
#10 0xb7e99524 in NS_ProcessNextEvent_P ()
#11 0xb7eccae3 in nsThread::ThreadFunc ()
#12 0xb7e3bea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#13 0x00af73db in start_thread () from /lib/libpthread.so.0
#14 0x0091926e in clone () from /lib/libc.so.6
Thread 8 (Thread -1223066736 (LWP 2965)):
#0  0xb7fad410 in __kernel_vsyscall ()
#1  0x00afb42c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
#2  0xb7e378df in PR_Unlock () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0xb7e37a69 in PR_WaitCondVar ()
#4  0xb7ed0122 in TimerThread::UpdateFilter ()
#5  0xb7ecd27a in nsThread::PutEvent ()
#6  0xb7e99524 in NS_ProcessNextEvent_P ()
#7  0xb7eccae3 in nsThread::ThreadFunc ()
#8  0xb7e3bea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#9  0x00af73db in start_thread () from /lib/libpthread.so.0
#10 0x0091926e in clone () from /lib/libc.so.6
Thread 7 (Thread -1261446256 (LWP 2971)):
#0  0xb7fad410 in __kernel_vsyscall ()
#1  0x00afb1a6 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb7e37acd in PR_WaitCondVar ()
#3  0x0816e1c4 in nsReadingIterator<char>::advance ()
#4  0x0816e255 in nsReadingIterator<char>::advance ()
#5  0xb7ecd27a in nsThread::PutEvent ()
#6  0xb7e99524 in NS_ProcessNextEvent_P ()
#7  0xb7eccae3 in nsThread::ThreadFunc ()
#8  0xb7e3bea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#9  0x00af73db in start_thread () from /lib/libpthread.so.0
#10 0x0091926e in clone () from /lib/libc.so.6
Thread 6 (Thread -1244660848 (LWP 2974)):
#0  0xb7fad410 in __kernel_vsyscall ()
#1  0x00afb42c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
#2  0xb7e378df in PR_Unlock () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0xb7e37a69 in PR_WaitCondVar ()
#4  0x08792169 in nsAutoMonitor::~nsAutoMonitor ()
#5  0x087912bb in nsAutoMonitor::~nsAutoMonitor ()
#6  0xb7e3bea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#7  0x00af73db in start_thread () from /lib/libpthread.so.0
#8  0x0091926e in clone () from /lib/libc.so.6
Thread 5 (Thread -1253053552 (LWP 2975)):
#0  0xb7fad410 in __kernel_vsyscall ()
#1  0x00afb42c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
#2  0xb7e378df in PR_Unlock () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0xb7e37a69 in PR_WaitCondVar ()
#4  0x0877e325 in nsAutoMonitor::~nsAutoMonitor ()
#5  0x087912bb in nsAutoMonitor::~nsAutoMonitor ()
#6  0xb7e3bea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#7  0x00af73db in start_thread () from /lib/libpthread.so.0
#8  0x0091926e in clone () from /lib/libc.so.6
Thread 4 (Thread -1269838960 (LWP 2978)):
#0  0xb7fad410 in __kernel_vsyscall ()
#1  0x00afb1a6 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb7e37acd in PR_WaitCondVar ()
#3  0xb7e37d24 in PR_Wait () from /home/ce/Programme/FireFox3A4/libnspr4.so
#4  0xb7ecbd5b in nsEventQueue::GetEvent ()
#5  0xb7ecd254 in nsThread::PutEvent ()
#6  0xb7e99524 in NS_ProcessNextEvent_P ()
#7  0xb7eccae3 in nsThread::ThreadFunc ()
#8  0xb7e3bea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#9  0x00af73db in start_thread () from /lib/libpthread.so.0
#10 0x0091926e in clone () from /lib/libc.so.6
Thread 3 (Thread -1278231664 (LWP 4616)):
#0  0xb7fad410 in __kernel_vsyscall ()
#1  0x00afb42c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
#2  0xb7e378df in PR_Unlock () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0xb7e37a69 in PR_WaitCondVar ()
#4  0x080c0efa in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#5  0x080c10b8 in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#6  0xb7e3bea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#7  0x00af73db in start_thread () from /lib/libpthread.so.0
#8  0x0091926e in clone () from /lib/libc.so.6
Thread 2 (Thread -1234322544 (LWP 4670)):
#0  0xb7fad410 in __kernel_vsyscall ()
#1  0x00afb42c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
#2  0xb7e378df in PR_Unlock () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0xb7e37a69 in PR_WaitCondVar ()
#4  0xb7e37d24 in PR_Wait () from /home/ce/Programme/FireFox3A4/libnspr4.so
#5  0xb7ecea6c in nsThreadPool::ShutdownThread ()
#6  0xb7ecd27a in nsThread::PutEvent ()
#7  0xb7e99524 in NS_ProcessNextEvent_P ()
#8  0xb7eccae3 in nsThread::ThreadFunc ()
#9  0xb7e3bea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#10 0x00af73db in start_thread () from /lib/libpthread.so.0
#11 0x0091926e in clone () from /lib/libc.so.6
Thread 1 (Thread -1211758912 (LWP 2963)):
#0  0x0835bf39 in nsReadingIterator<unsigned short>::advance ()
#1  0x083b8ab3 in nsReadingIterator<unsigned short>::advance ()
#2  0xb7e92ae9 in nsQueryInterface::operator() ()
#3  0xb7e92b9f in nsCOMPtr_base::assign_from_qi ()
#4  0x0842235f in nsReadingIterator<unsigned short>::advance ()
#5  0x08423529 in nsReadingIterator<unsigned short>::advance ()
#6  0x0813e743 in nsReadingIterator<char>::advance ()
#7  0xb7f56809 in js_LookupPropertyWithFlags ()
#8  0xb7f56646 in js_LookupProperty ()
#9  0xb7f570af in js_GetProperty ()
#10 0xb7f4881e in js_Interpret ()
#11 0xb7f417b9 in js_Invoke () from /home/ce/Programme/FireFox3A4/libmozjs.so
#12 0xb7f41b1d in js_InternalInvoke ()
#13 0xb7f1d876 in JS_CallFunctionValue ()
#14 0x083fd2dd in nsReadingIterator<unsigned short>::advance ()
#15 0x08429e15 in nsReadingIterator<unsigned short>::advance ()
#16 0x0839405a in nsReadingIterator<unsigned short>::advance ()
#17 0x0839445e in nsReadingIterator<unsigned short>::advance ()
#18 0x083a4658 in nsReadingIterator<unsigned short>::advance ()
#19 0x083a4752 in nsReadingIterator<unsigned short>::advance ()
#20 0x083a4ba8 in nsReadingIterator<unsigned short>::advance ()
#21 0x0837695a in nsReadingIterator<unsigned short>::advance ()
#22 0xb7ecd27a in nsThread::PutEvent ()
#23 0xb7e99524 in NS_ProcessNextEvent_P ()
#24 0x08204ab2 in XmlInitUnknownEncodingNS ()
#25 0x0874249c in nsAutoMonitor::~nsAutoMonitor ()
#26 0x08077d9f in gtk_widget_grab_focus ()
#27 0x08b28580 in ?? ()
#28 0xbff46268 in ?? ()
#29 0x00000000 in ?? ()
#0  0x0835bf39 in nsReadingIterator<unsigned short>::advance ()










Thread 9 (Thread -1214764144 (LWP 4731)):
#0  0xb7f63410 in __kernel_vsyscall ()
#1  0x0090f6d3 in poll () from /lib/libc.so.6
#2  0xb7df0ccf in PR_OpenDir () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0x080b8dd2 in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#4  0x080b93ae in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#5  0x080b9142 in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#6  0xb7e83218 in nsThread::PutEvent ()
#7  0xb7e4f524 in NS_ProcessNextEvent_P ()
#8  0x080b9205 in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#9  0xb7e8327a in nsThread::PutEvent ()
#10 0xb7e4f524 in NS_ProcessNextEvent_P ()
#11 0xb7e82ae3 in nsThread::ThreadFunc ()
#12 0xb7df1ea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#13 0x00af73db in start_thread () from /lib/libpthread.so.0
#14 0x0091926e in clone () from /lib/libc.so.6
Thread 8 (Thread -1223369840 (LWP 4732)):
#0  0xb7f63410 in __kernel_vsyscall ()
#1  0x00afb42c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
#2  0xb7ded8df in PR_Unlock () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0xb7deda69 in PR_WaitCondVar ()
#4  0xb7e86122 in TimerThread::UpdateFilter ()
#5  0xb7e8327a in nsThread::PutEvent ()
#6  0xb7e4f524 in NS_ProcessNextEvent_P ()
#7  0xb7e82ae3 in nsThread::ThreadFunc ()
#8  0xb7df1ea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#9  0x00af73db in start_thread () from /lib/libpthread.so.0
#10 0x0091926e in clone () from /lib/libc.so.6
Thread 7 (Thread -1234543728 (LWP 4733)):
#0  0xb7f63410 in __kernel_vsyscall ()
#1  0x00afb42c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
#2  0xb7ded8df in PR_Unlock () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0xb7deda69 in PR_WaitCondVar ()
#4  0xb7dedd24 in PR_Wait () from /home/ce/Programme/FireFox3A4/libnspr4.so
#5  0xb7e84a6c in nsThreadPool::ShutdownThread ()
#6  0xb7e8327a in nsThread::PutEvent ()
#7  0xb7e4f524 in NS_ProcessNextEvent_P ()
#8  0xb7e82ae3 in nsThread::ThreadFunc ()
#9  0xb7df1ea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#10 0x00af73db in start_thread () from /lib/libpthread.so.0
#11 0x0091926e in clone () from /lib/libc.so.6
Thread 6 (Thread -1245537392 (LWP 4734)):
#0  0xb7f63410 in __kernel_vsyscall ()
#1  0x00afb1a6 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb7dedacd in PR_WaitCondVar ()
#3  0x0816e1c4 in nsReadingIterator<char>::advance ()
#4  0x0816e255 in nsReadingIterator<char>::advance ()
#5  0xb7e8327a in nsThread::PutEvent ()
#6  0xb7e4f524 in NS_ProcessNextEvent_P ()
#7  0xb7e82ae3 in nsThread::ThreadFunc ()
#8  0xb7df1ea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#9  0x00af73db in start_thread () from /lib/libpthread.so.0
#10 0x0091926e in clone () from /lib/libc.so.6
Thread 5 (Thread -1253930096 (LWP 4738)):
#0  0xb7f63410 in __kernel_vsyscall ()
#1  0x00afb42c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
#2  0xb7ded8df in PR_Unlock () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0xb7deda69 in PR_WaitCondVar ()
#4  0x080c0efa in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#5  0x080c10b8 in nsTHashtable<nsBaseHashtableET<nsStringHashKey, nsCOMPtr<nsIVariant> > >::~nsTHashtable$base ()
#6  0xb7df1ea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#7  0x00af73db in start_thread () from /lib/libpthread.so.0
#8  0x0091926e in clone () from /lib/libc.so.6
Thread 4 (Thread -1262322800 (LWP 4739)):
#0  0xb7f63410 in __kernel_vsyscall ()
#1  0x00afb42c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
#2  0xb7ded8df in PR_Unlock () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0xb7deda69 in PR_WaitCondVar ()
#4  0x08792169 in nsAutoMonitor::~nsAutoMonitor ()
#5  0x087912bb in nsAutoMonitor::~nsAutoMonitor ()
#6  0xb7df1ea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#7  0x00af73db in start_thread () from /lib/libpthread.so.0
#8  0x0091926e in clone () from /lib/libc.so.6
Thread 3 (Thread -1271923824 (LWP 4740)):
#0  0xb7f63410 in __kernel_vsyscall ()
#1  0x00afb42c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
#2  0xb7ded8df in PR_Unlock () from /home/ce/Programme/FireFox3A4/libnspr4.so
#3  0xb7deda69 in PR_WaitCondVar ()
#4  0x0877e325 in nsAutoMonitor::~nsAutoMonitor ()
#5  0x087912bb in nsAutoMonitor::~nsAutoMonitor ()
#6  0xb7df1ea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#7  0x00af73db in start_thread () from /lib/libpthread.so.0
#8  0x0091926e in clone () from /lib/libc.so.6
Thread 2 (Thread -1280799856 (LWP 4742)):
#0  0xb7f63410 in __kernel_vsyscall ()
#1  0x00afb1a6 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb7dedacd in PR_WaitCondVar ()
#3  0xb7dedd24 in PR_Wait () from /home/ce/Programme/FireFox3A4/libnspr4.so
#4  0xb7e81d5b in nsEventQueue::GetEvent ()
#5  0xb7e83254 in nsThread::PutEvent ()
#6  0xb7e4f524 in NS_ProcessNextEvent_P ()
#7  0xb7e82ae3 in nsThread::ThreadFunc ()
#8  0xb7df1ea8 in PR_Select () from /home/ce/Programme/FireFox3A4/libnspr4.so
#9  0x00af73db in start_thread () from /lib/libpthread.so.0
#10 0x0091926e in clone () from /lib/libc.so.6
Thread 1 (Thread -1212062016 (LWP 4730)):
#0  0x083a03f7 in nsReadingIterator<unsigned short>::advance ()
#1  0x0837695a in nsReadingIterator<unsigned short>::advance ()
#2  0xb7e8327a in nsThread::PutEvent ()
#3  0xb7e4f524 in NS_ProcessNextEvent_P ()
#4  0x08204ab2 in XmlInitUnknownEncodingNS ()
#5  0x0874249c in nsAutoMonitor::~nsAutoMonitor ()
#6  0x08077d9f in gtk_widget_grab_focus ()
#7  0x08b28580 in ?? ()
#8  0xbfc2c758 in ?? ()
#9  0x00000000 in ?? ()
#0  0x083a03f7 in nsReadingIterator<unsigned short>::advance ()

I tracked the problem down to this site: http://blogs.sun.com/fatcatair/entry/tiered_compilation_issues

It does not always happen (for me it happend "just" 3 times, but always when I was there).

I'll try to get a debug-build working and send more useful information.

lg Clemens
do you see this problem with current beta of 3.1?  
 http://www.mozilla.com/en-US/firefox/all-beta.html
Keywords: perf
Version: unspecified → 3.0 Branch
I guess sun fixed the issues with the next-gen java plugin.
Status: UNCONFIRMED → RESOLVED
Closed: 15 years ago
Resolution: --- → INVALID
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