Hang on CTRL-C (was Re: livelock on sigfe)

[jojelino]

On 2013-04-01 PM 2:03, Christopher Faylor wrote:
> On Mon, Apr 01, 2013 at 11:53:38AM +0900, jojelino wrote:
>> On 2013-03-17 AM 1:44, Christopher Faylor wrote:
>>> No, not really.  The caller in this case isn't interesting.  The number
>>> of threads executing is interesting.
>>>
>>> cgf
>>>
>> there is another debug session. I was trying to CTRL+C to mintty session
>> in which make process was running. process hanged with livelock.
>>

make process got CTRL+C, and the hanged was clang.exe. and these two was 
on mintty session.

> Sorry for being so precise in my request that you provide information
> on threads. It sure would be nice to see what thread 3 was doing via
> a backtrace.
>
> cgf
>

Here it is. this was created when gdb attached the process.
(gdb) i threads
   Id   Target Id         Frame
* 3    Thread 4516.0xc78 0x7c95a22a in ntdll!DbgBreakPoint ()
    from /cygdrive/c/WINDOWS/system32/ntdll.dll
   2    Thread 4516.0x1310 0x7c96845c in ntdll!KiFastSystemCallRet ()
    from /cygdrive/c/WINDOWS/system32/ntdll.dll
   1    Thread 4516.0x1e88 0x7c96845c in ntdll!KiFastSystemCallRet ()
    from /cygdrive/c/WINDOWS/system32/ntdll.dll
(gdb) bt
#0  0x7c95a22a in ntdll!DbgBreakPoint ()
    from /cygdrive/c/WINDOWS/system32/ntdll.dll
#1  0x7c97fc68 in ntdll!DbgUiRemoteBreakin ()
    from /cygdrive/c/WINDOWS/system32/ntdll.dll
#2  0x00000005 in ?? ()
#3  0x88617518 in ?? ()
#4  0xffffffff in ?? ()
#5  0x7c9680e0 in ntdll!_CIpow () from 
/cygdrive/c/WINDOWS/system32/ntdll.dll
#6  0x7c97fc80 in ntdll!DbgUiRemoteBreakin ()
    from /cygdrive/c/WINDOWS/system32/ntdll.dll
#7  0x00000000 in ?? ()
(gdb)

-- 
Regards.
-- 
Regards.


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