[OpenIndiana-discuss] Firefox68esr for testing

[Joshua M. Clulow]

On Thu, 18 Mar 2021 at 20:35, Bill Sommerfeld <sommerfeld at hamachi.org> wrote:
>  > 5c::findstack ! demangle

Note that you can have mdb do the demangling for you, as well:

    > $G
    C++ symbol demangling enabled

> stack pointer for thread 92 [speechd init]: 7fffa8fee070
> [ 00007fffa8fee070 libc.so.1`_lwp_kill+0xa() ]
>    00007fffa8fee0a0 libc.so.1`raise+0x1e()
>    00007fffa8fee0f0 libxul.so`nsProfileLock::FatalSignalHandler(int,
> siginfo*, void*)+0xcb()
>    00007fffa8fee180 libxul.so`WasmTrapHandler(int, siginfo*, void*)+0xf2()
>    00007fffa8fee190 libc.so.1`__sighndlr+6()
>    00007fffa8fee230 libc.so.1`call_user_handler+0x1db()
>    00007fffa8fee280 libc.so.1`sigacthandler+0xee()
>    00007fffa8fee7f0 libc.so.1`strlen+0x30()
>    00007fffa8fee860 libspeechd.so.2.6.0`spd_list_synthesis_voices+0x1d()
>    00007fffa8feeb80
> libxul.so`mozilla::dom::SpeechDispatcherService::Setup()+0xc8()
>    00007fffa8feeb90
> libxul.so`mozilla::detail::RunnableMethodImpl<mozilla::dom::SpeechDispatcherService*,
> void (mozilla::dom::SpeechDispatcherService::*)(), true,
> (mozilla::RunnableKind)0>::Run()+0x27()
>    00007fffa8feec90 libxul.so`nsThread::ProcessNextEvent(bool,
> bool*)+0x63a()
>    00007fffa8feecc0 libxul.so`NS_ProcessNextEvent(nsIThread*, bool)+0x2d()
>    00007fffa8feed00
> libxul.so`mozilla::ipc::MessagePumpForNonMainThreads::Run(base::MessagePump::Delegate*)+0x116()
>    00007fffa8feed10 libxul.so`MessageLoop::RunInternal()+0x13()
>    00007fffa8feed60 libxul.so`MessageLoop::Run()+0x37()
>    00007fffa8feef70 libxul.so`nsThread::ThreadFunc(void*)+0xd8()
>    00007fffa8feefb0 libnspr4.so`_pt_root+0xcb()
>    00007fffa8feefe0 libc.so.1`_thrp_setup+0x6c()
>    00007fffa8feeff0 libc.so.1`_lwp_start()
>  >
>
> (if I'm reading it correctly, it trapped in strlen()).

It does look that way.  If you add a "-v" to ::findstack you might see
arguments, which can be helpful.  If there aren't arguments this
program may need to be built with -msave-args.


Cheers.

-- 
Joshua M. Clulow
http://blog.sysmgr.org