new backtrace

(gdb) backtrace
#0  0x00007f9aa54109d0 in __GI___nanosleep (requested_time=requested_time@entry=0x7ffd9cbb6ba0, remaining=remaining@entry=0x7ffd9cbb6ba0)
    at ../sysdeps/unix/sysv/linux/nanosleep.c:28
#1  0x00007f9aa54108aa in __sleep (seconds=0) at ../sysdeps/posix/sleep.c:55
#2  0x00007f9a9898d2d4 in ah_crap_handler(int) (signum=11) at /home/arpit/Development/moz/mozilla-central/toolkit/xre/nsSigHandlers.cpp:95
#3  0x00007f9a989724e2 in nsProfileLock::FatalSignalHandler(int, siginfo_t*, void*) (signo=11, info=0x7ffd9cbb6e70, context=0x7ffd9cbb6d40)
    at /home/arpit/Development/moz/mozilla-central/toolkit/profile/nsProfileLock.cpp:178
#4  0x00007f9a999c87cb in WasmTrapHandler(int, siginfo_t*, void*) (signum=11, info=0x7ffd9cbb6e70, context=<optimized out>)
    at /home/arpit/Development/moz/mozilla-central/js/src/wasm/WasmSignalHandlers.cpp:962
#5  0x00007f9aa6272890 in <signal handler called> () at /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f9a94f1d193 in mozilla::net::nsHttpChannel::OnStartRequest(nsIRequest*) (this=0x7f9a77820000, request=0x7f9a77c4c970)
    at /home/arpit/Development/moz/mozilla-central/netwerk/protocol/http/nsHttpChannel.cpp:7683
#7  0x00007f9a94b73a98 in nsInputStreamPump::OnStateStart() (this=0x7f9a77c4c970)
    at /home/arpit/Development/moz/mozilla-central/netwerk/base/nsInputStreamPump.cpp:487
#8  0x00007f9a94b7370b in nsInputStreamPump::OnInputStreamReady(nsIAsyncInputStream*) (this=0x7f9a77c4c970, stream=<optimized out>)
    at /home/arpit/Development/moz/mozilla-central/netwerk/base/nsInputStreamPump.cpp:396
#9  0x00007f9a94b74275 in non-virtual thunk to nsInputStreamPump::OnInputStreamReady(nsIAsyncInputStream*) ()
    at /home/arpit/Development/moz/mozilla-central/obj-x86_64-pc-linux-gnu/dist/include/mozilla/RefPtr.h:47
#10 0x00007f9a94a4cb2c in nsInputStreamReadyEvent::Run() (this=0x7f9a77eebd80)
    at /home/arpit/Development/moz/mozilla-central/xpcom/io/nsStreamUtils.cpp:91
#11 0x00007f9a94a888fc in nsThread::ProcessNextEvent(bool, bool*) (this=0x7f9aa518f5c0, aMayWait=<optimized out>, aResult=0x7ffd9cbb7967)
    at /home/arpit/Development/moz/mozilla-central/xpcom/threads/nsThread.cpp:1225
#12 0x00007f9a94a8a78d in NS_ProcessNextEvent(nsIThread*, bool) (aThread=0x7f9aa5718680 <_IO_2_1_stderr_>, aMayWait=<optimized out>)
    at /home/arpit/Development/moz/mozilla-central/xpcom/threads/nsThreadUtils.cpp:486
#13 0x00007f9a95090844 in mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) (this=0x7f9a8eb09a80, aDelegate=0x7f9a8eb36020)
    at /home/arpit/Development/moz/mozilla-central/ipc/glue/MessagePump.cpp:88
#14 0x00007f9a9501ea5d in MessageLoop::RunInternal() (this=0x7f9a8eb36020)
    at /home/arpit/Development/moz/mozilla-central/ipc/chromium/src/base/message_loop.cc:315
#15 0x00007f9a9501e9b6 in MessageLoop::RunHandler() (this=0x7f9a8eb36020)
    at /home/arpit/Development/moz/mozilla-central/ipc/chromium/src/base/message_loop.cc:308
#16 0x00007f9a9501e9b6 in MessageLoop::Run() (this=0x7f9a8eb36020)
    at /home/arpit/Development/moz/mozilla-central/ipc/chromium/src/base/message_loop.cc:290
#17 0x00007f9a976d91e7 in nsBaseAppShell::Run() (this=0x7f9a8ebf89e0)
    at /home/arpit/Development/moz/mozilla-central/widget/nsBaseAppShell.cpp:137
#18 0x00007f9a98891139 in nsAppStartup::Run() (this=0x7f9a8eb0ae20)
    at /home/arpit/Development/moz/mozilla-central/toolkit/components/startup/nsAppStartup.cpp:276
#19 0x00007f9a98986ebf in XREMain::XRE_mainRun() (this=<optimized out>)
    at /home/arpit/Development/moz/mozilla-central/toolkit/xre/nsAppRunner.cpp:4606
#20 0x00007f9a989878c8 in XREMain::XRE_main(int, char**, mozilla::BootstrapConfig const&) (this=0x7ffd9cbb7cc8, argc=<optimized out>, argv=<optimized out>, aConfig=...) at /home/arpit/Development/moz/mozilla-central/toolkit/xre/nsAppRunner.cpp:4741