[OpenIndiana-discuss] Firefox68esr for testing

[Carsten Grzemba]

Am 19.03.21 05:33 schrieb Bill Sommerfeld  <sommerfeld at hamachi.org>: 
> 
> On 03/18/21 21:03, Joshua M. Clulow via openindiana-discuss wrote:
> >>(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.
> No arguments in the firefox code, but we do have them in libc and that lets us get the siginfo_t and ucontext_t out of sigacthandler()/call_user_handler():
> 
> [ 00007fffa8fee070 libc.so.1`_lwp_kill+0xa() ]
>  00007fffa8fee0a0 libc.so.1`raise+0x1e(b)
>  00007fffa8fee0f0 libxul.so`nsProfileLock::FatalSignalHandler+0xcb()
>  00007fffa8fee180 libxul.so`WasmTrapHandler+0xf2()
>  00007fffa8fee190 libc.so.1`__sighndlr+6()
>  00007fffa8fee230 libc.so.1`call_user_handler+0x1db(b, 7fffa8fee608, 7fffa8fee2a0)
>  00007fffa8fee280 libc.so.1`sigacthandler+0xee(b, 7fffa8fee608, 7fffa8fee2a0)
>  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 +0x27()
>  00007fffa8feec90 libxul.so`nsThread::ProcessNextEvent+0x63a()
>  00007fffa8feecc0 libxul.so`NS_ProcessNextEvent+0x2d()
>  00007fffa8feed00 libxul.so`mozilla::ipc::MessagePumpForNonMainThreads::Run+0x116()
>  00007fffa8feed10 libxul.so`MessageLoop::RunInternal+0x13()
>  00007fffa8feed60 libxul.so`MessageLoop::Run+0x37()
>  00007fffa8feef70 libxul.so`nsThread::ThreadFunc+0xd8()
>  00007fffa8feefb0 libnspr4.so`_pt_root+0xcb()
>  00007fffa8feefe0 libc.so.1`_thrp_setup+0x6c(7fffab768a40)
>  00007fffa8feeff0 libc.so.1`_lwp_start()
> 
> > 7fffa8fee608::siginfo
>  signal 11 (SEGV)
>  code 1 (from kernel)
>  errno 0 (Error 0)
>  fault address = 0x0
>  trapno = 0
>  instruction address = 0x0
> > 7fffa8fee2a0::ucontext
>  flags = 0xf <UC_SIGMASK,UC_STACK,UC_CPU,UC_FPU>
>  link = 0x0
>  sigmask = 0x00000000 0x00000000 0x00000000 0x00000000
>  stack = sp 0x7fffa8faf000 size 0x40000 flags 0
>  mcontext = 0x7fffa8fee2e0
> > 7fffa8fee2a0::regs -u
> %rax = 0x00007fffa8fee7b8 %r8 = 0x0000000000000017
> %rbx = 0x00007fff9d1eed00 %r9 = 0x000000004543494f
> %rcx = 0x0000000000000000 %r10 = 0x0000000000000d53
> %rdx = 0x0000000001000000 %r11 = 0x000000000000000a
> %rsi = 0x0000000000000000 %r12 = 0x0000000000000000
> %rdi = 0x0000000000000000 %r13 = 0x00007fff9d1eed00
>  %r14 = 0x00000000124d8e00
>  %r15 = 0x0000000000000000
> 
> %cs = 0x0053 %fs = 0x0000 %gs = 0x0000
> %ds = 0x004b %es = 0x004b %ss = 0x004b
> 
> %rip = 0x00007fffaf35bab0 libc.so.1`strlen+0x30
> %rbp = 0x00007fffa8fee7f0
> %rsp = 0x00007fffa8fee788
> 
> %rflags = 0x00010246
>  id=0 vip=0 vif=0 ac=0 vm=0 rf=1 nt=0 iopl=0x0
>  status=<of,df,IF,tf,sf,ZF,af,PF,cf>
> 
> %gsbase = 0x0000000000000000
> %fsbase = 0x00007fffab768a40
> %trapno = 0xe
>  %err = 0x4
> 
> Faulting instruction is:
> libc.so.1`strlen+0x30: pcmpeqb (%rsi),%xmm0
> 
> %rsi is 0
> 
> my read: spd_list_synthesis_voices() is most likely calling strlen(NULL).
> 
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> 


<signatureafterquotedtext>I get thist too, if I access Yandex.com with FF78. I will provide an FF78 build with -msave-args.
</signatureafterquotedtext>
-- 




Carsten