Hi, I'm running NetBSD/amd64 -current (with sources from yesterday)
and after building lots of apps finally built firefox.

Firefox worked perfectly until I closed it... I could see that it
was still running (firefox-bin) and taking 100% cpu, killing it
reported a core:

(gdb) bt
#0  0x00007f7ff902ff9a in kill () from /usr/lib/libc.so.12
#1  0x00007f7ff9309274 in pthread__errorfunc ()
#from /usr/lib/libpthread.so.0 2  0x00007f7ff93085c5 in
#pthread_cond_destroy () from /usr/lib/libpthread.so.0 3
#0x00007f7ffd12474c in PR_DestroyCondVar ()
#from /usr/pkg/lib/firefox/libnspr4.so 4  0x00007f7ffd7be4e1 in
#TimerThread::~TimerThread ()
#from /usr/pkg/lib/firefox/libxpcom_core.so 5  0x00007f7ffd7be595 in
#TimerThread::Release () from /usr/pkg/lib/firefox/libxpcom_core.so 6
#0x00007f7ffd7bcfe2 in nsTimerImpl::Shutdown ()
#from /usr/pkg/lib/firefox/libxpcom_core.so 7  0x00007f7ffd779c5b in
#NS_ShutdownXPCOM_P () from /usr/pkg/lib/firefox/libxpcom_core.so 8
#0x0000000000409b96 in ScopedXPCOMStartup::~ScopedXPCOMStartup () 9
#0x000000000040a3ec in ScopedXPCOMStartup::SetWindowCreator () 10
#0x000000000040e059 in XRE_main () 11 0x000000000040934f in ___start ()
#12 0x0000000000000001 in ?? () 13 0x00007f7fffffee08 in ?? () 14
#0x0000000000000000 in ?? ()
(gdb)

NetBSD nocturno 4.99.13 NetBSD 4.99.13 (Nocturno) #3: Mon Mar  5
15:29:17 CET 2007
juan@nocturno:/home/juan/build/obj/sys/arch/amd64/compile/Nocturno amd64

EMT64 and SMP.

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Juan RP's blog - NetBSD/pkgsrc news in Spanish