Description of problem:
Thunderbird crashes immediately when run from the command line.  The process
just disappears without a trace.  Closer inspection reveals that it has crashed
from a segfault.

Version-Release number of selected component (if applicable):
thunderbird-1.0.7-1.1.fc4.ppc.rpm
... on FC4 for PPC with all updates applied.

How reproducible:
100%

Steps to Reproduce:
1. rm -rf ~/.thunderbird
2. thunderbird
3. Dialog appears, offering to import settings into profile.  It doesn't matter
whether which choice you pick; click Next.  Thunderbird creates a profile in
~/.thunderbird, then crashes.
4. Run thunderbird -g to get the stack trace (included below).

Additional info:
Stack trace from running thunderbird -g

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 806830784 (LWP 4292)]
0x0f22b0f0 in nsSegmentedBuffer::Empty (this=0x2c) at nsSegmentedBuffer.cpp:158
/usr/src/debug/mozilla/xpcom/io/nsSegmentedBuffer.cpp:158:5456:beg:0xf22b0f0
(gdb) bt
#0  0x0f22b0f0 in nsSegmentedBuffer::Empty (this=0x2c) at nsSegmentedBuffer.cpp:158
#1  0x0f22821c in ~nsSegmentedBuffer (this=0x2c) at nsSegmentedBuffer.h:54
#2  0x0ddcc4c4 in ~FileImpl (this=Variable "this" is not available.
) at nsIFileStream.cpp:186
#3  0x0ddccbb0 in FileImpl::Release (this=0x106bbe38) at nsIFileStream.cpp:122
#4  0x0f270ec4 in nsCOMPtr_base::~nsCOMPtr_base$base () at
nsComponentManagerUtils.cpp:67
#5  0x0ddcacf8 in ~nsCOMPtr (this=Variable "this" is not available.
) at ../../dist/include/xpcom/nsCOMPtr.h:472
#6  0x0ddcad30 in ~nsRandomAccessStoreClient (this=Variable "this" is not available.
) at nsFileStream.h:388
#7  0x0ddcae4c in ~nsRandomAccessInputStream (this=0x10694408,
__vtt_parm=0xdd95868) at nsFileStream.h:442
#8  0x0ddc9394 in nsInputFileStream::~nsInputFileStream$base () at
../../dist/include/string/nsTAString.h:395
#9  0x0daa7608 in ~nsIOFileStream (this=0x10694408) at
../../../dist/include/xpcom_obsolete/nsFileStream.h:684
#10 0x0daa57ec in nsMsgFilterService::OpenFilterList (this=0x106bbb80,
filterFile=0x106bbcf0, rootFolder=0x0, aMsgWindow=0x0,
resultFilterList=0x106bbc64) at nsMsgFilterService.cpp:99
#11 0x0dca6264 in nsMsgMailViewList::LoadMailViews (this=0x106bbc58) at
nsMsgMailViewList.cpp:260
#12 0x0dca6398 in nsMsgMailViewList (this=0x106bbc58) at nsMsgMailViewList.cpp:110
#13 0x0d9ea364 in nsMsgMailViewListConstructor (aOuter=Variable "aOuter" is not
available.
) at nsMailModule.cpp:511
#14 0x0f271aa0 in nsGenericFactory::CreateInstance (this=Variable "this" is not
available.
) at nsGenericFactory.cpp:82
#15 0x0f23b29c in nsComponentManagerImpl::CreateInstance (this=0x10066378,
aClass=Variable "aClass" is not available.
) at nsComponentManager.cpp:1918
#16 0x0f23aca8 in nsComponentManagerImpl::GetService (this=0x10066378,
aClass=@0x106bba2c, aIID=@0x7fa64390, result=0x7fa64384) at
nsComponentManager.cpp:2120
#17 0x0f242150 in nsServiceManager::GetService (aClass=Variable "aClass" is not
available.
) at nsServiceManagerObsolete.cpp:77
#18 0x0e8c3834 in nsJSCID::GetService (this=0x106bba18, _retval=Variable
"_retval" is not available.
) at xpcjsid.cpp:882
#19 0x0f263d58 in XPTC_InvokeByIndex () at
../../../dist/include/string/nsTAString.h:406
#20 0x0e8d5bc4 in XPCWrappedNative::CallMethod (ccx=@0x7fa646d8, mode=Variable
"mode" is not available.
) at xpcwrappednative.cpp:2034
#21 0x0e8d9448 in XPC_WN_CallMethod (cx=0x101d6bf0, obj=Variable "obj" is not
available.
) at xpcwrappednativejsops.cpp:1781
#22 0x0ff6b53c in js_Invoke (cx=0x101d6bf0, argc=1, flags=0) at jsinterp.c:955
#23 0x0ff68424 in js_Interpret (cx=0x101d6bf0, result=0x7fa64908) at jsinterp.c:2998
#24 0x0ff6b58c in js_Invoke (cx=0x101d6bf0, argc=1, flags=2) at jsinterp.c:972
#25 0x0e8d0e5c in nsXPCWrappedJSClass::CallMethod (this=0x103ead30,
wrapper=Variable "wrapper" is not available.
) at xpcwrappedjsclass.cpp:1339
#26 0x0e8cb938 in nsXPCWrappedJS::CallMethod (this=Variable "this" is not available.
) at xpcwrappedjs.cpp:449
#27 0x0f263c24 in PrepareAndDispatch (self=0x104bdf68, methodIndex=Variable
"methodIndex" is not available.
) at xptcstubs_ppc_linux.cpp:176
#28 0x0f263dd0 in SharedStub () at ../../../dist/include/string/nsTAString.h:406
#29 0x0e165c44 in nsEventListenerManager::HandleEventSubType (this=0x10383fa0,
aListenerStruct=0x104bde78, aDOMEvent=0x106b3bd8, aCurrentTarget=0x101d6a38,
aSubType=1, aPhaseFlags=Variable "aPhaseFlags" is not available.
) at nsEventListenerManager.cpp:1454
#30 0x0e1663ac in nsEventListenerManager::HandleEvent (this=0x10383fa0,
aPresContext=Variable "aPresContext" is not available.
) at nsEventListenerManager.cpp:1552
#31 0x0e2ceda0 in GlobalWindowImpl::HandleDOMEvent (this=0x101d6a28,
aPresContext=0x103101d0, aEvent=0x7fa65020, aDOMEvent=0x7fa64f68,
aFlags=Variable "aFlags" is not available.
) at nsGlobalWindow.cpp:933
#32 0x0e0f118c in DocumentViewerImpl::LoadComplete (this=0x10383b88,
aStatus=Variable "aStatus" is not available.
) at nsDocumentViewer.cpp:917
#33 0x0e5258cc in nsDocShell::EndPageLoad (this=0x101d6420, aProgress=Variable
"aProgress" is not available.
) at nsDocShell.cpp:4609
#34 0x0e537600 in nsWebShell::EndPageLoad (this=0x101d6420,
aProgress=0x101d65c4, channel=0x101e4690, aStatus=0) at nsWebShell.cpp:755
#35 0x0e524aa4 in nsDocShell::OnStateChange (this=0x101d6420,
aProgress=0x101d65c4, aRequest=0x101e4690, aStateFlags=Variable "aStateFlags" is
not available.
) at nsDocShell.cpp:4541
#36 0x0e546430 in nsDocLoaderImpl::FireOnStateChange (this=0x101d65b0,
aProgress=0x101d65c4, aRequest=0x101e4690, aStateFlags=131088, aStatus=0) at
nsDocLoader.cpp:1268
#37 0x0e54664c in nsDocLoaderImpl::doStopDocumentLoad (this=0x101d65b0,
request=0x101e4690, aStatus=0) at nsDocLoader.cpp:862
#38 0x0e546758 in nsDocLoaderImpl::DocLoaderIsEmpty (this=0x101d65b0) at
nsDocLoader.cpp:769
#39 0x0e546b80 in nsDocLoaderImpl::OnStopRequest (this=0x101d65b0,
aRequest=0x106d6e90, aCtxt=Variable "aCtxt" is not available.
) at nsDocLoader.cpp:698
#40 0x0e73b2b4 in nsLoadGroup::RemoveRequest (this=0x101d6780,
request=0x106d6e90, ctxt=0x0, aStatus=0) at nsLoadGroup.cpp:695
#41 0x0de70044 in imgRequestProxy::RemoveFromLoadGroup (this=0x106d6e90) at
imgRequestProxy.cpp:157
#42 0x0de7009c in imgRequestProxy::OnStopRequest (this=Variable "this" is not
available.
) at imgRequestProxy.cpp:447
#43 0x0de6e538 in imgRequest::OnStopRequest (this=Variable "this" is not available.
) at imgRequest.cpp:697
#44 0x0de699b8 in ProxyListener::OnStopRequest (this=Variable "this" is not
available.
) at imgLoader.cpp:851
#45 0x0e7aed08 in nsJARChannel::OnStopRequest (this=0x106d71d0, req=Variable
"req" is not available.
) at nsJARChannel.cpp:687
#46 0x0e7340d4 in nsInputStreamPump::OnStateStop (this=0x106d74a8) at
nsInputStreamPump.cpp:498
#47 0x0e734474 in nsInputStreamPump::OnInputStreamReady (this=0x106d74a8,
stream=0x0) at nsInputStreamPump.cpp:339
#48 0x0f22a050 in nsInputStreamReadyEvent::EventHandler (plevent=Variable
"plevent" is not available.
) at nsStreamUtils.cpp:118
#49 0x0f243970 in PL_HandleEvent (self=0x106d97f4) at plevent.c:673
#50 0x0f243f70 in PL_ProcessPendingEvents (self=0x100bd4f0) at plevent.c:608
#51 0x0f24593c in nsEventQueueImpl::ProcessPendingEvents (this=0x100bd4c8) at
nsEventQueue.cpp:398
#52 0x0e99e26c in event_processor_callback (source=Variable "source" is not
available.
) at nsAppShell.cpp:67
#53 0x0fd34584 in g_vasprintf () from /usr/lib/libglib-2.0.so.0
#54 0x0fd00a94 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#55 0x0fd04d6c in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#56 0x0fd051c4 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#57 0x0f569318 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#58 0x0e99e82c in nsAppShell::Run (this=0x1009e308) at nsAppShell.cpp:142
#59 0x0ea7c42c in nsAppShellService::Run (this=Variable "this" is not available.
) at nsAppShellService.cpp:494
#60 0x10009ad4 in xre_main (argc=Variable "argc" is not available.
) at nsAppRunner.cpp:1925
#61 0x10005a9c in main (argc=Variable "argc" is not available.
) at nsMailApp.cpp:58
#62 0x300317cc in generic_start_main () from /lib/libc.so.6
#63 0x30031964 in __libc_start_main () from /lib/libc.so.6
#64 0x30031964 in __libc_start_main () from /lib/libc.so.6