random results with the gdb testsuite

[Denis PILAT]

Here is part of the log file. At a specific time  (p/f *(long long *)) 
it seems like the debugger hangs up, then all further test are UNRESOLVED.

If I run this test and don't touch my keyboard, don't switch the current 
window, then it's 100% successful.

If I'm using the console window intensively after having run this test, 
switching window, using keyboard,  then I get the following log where 
apparently my debugger crash, or just close.
I can't find a way to debug that problem.
Of course all test passed well if executed by hand !

I'm using gdb 6.8 testsuite, hosted on linux with an internal ST 
debugger based as well on gdb6.8.


$63 = 100100011010001010110011110001001101010111100110111101111
(gdb) PASS: gdb.base/long_long.exp: p/t *(long long *)ll
p/a *(long long *)ll
$64 = 0x89abcdef
(gdb) PASS: gdb.base/long_long.exp: p/a *(long long *)ll
p/f *(long long *)ll
$65 = 3.5127005640885037e-303
(gdb) PASS: gdb.base/long_long.exp: p/f *(long long *)ll
p/c *(long long *)ll
$66 = -17 'ERROR: Process no longer exists
UNRESOLVED: gdb.base/long_long.exp: p/c *(long long *)ll
ERROR: Couldn't send x/w w to GDB.
UNRESOLVED: gdb.base/long_long.exp: set examine size to w
ERROR: Couldn't send x/x w to GDB.
 ...


-- 
Denis

teawater wrote:
> I test them in GDB-cvs version a lot of times but not got any fail.
> Which testsuite and wich GDB did use?
> And maybe you can post your "gdb.log" if you don't mind.
>
> BTW Maybe you need post this mail to gdb@sourceware.org.
>
> On Thu, Oct 9, 2008 at 17:19, Denis PILAT <denis.pilat@st.com> wrote:
>   
>> Hi all
>>
>> I am having random results using the gdb testsuite (with dejagnu 1.4.4),
>> especially for some test like gdb.base/display.exp ,
>> gdb.base/long_long.exp and gdb.cp/ctti.exp.
>> Sometime they are successful, sometime 50% fails.
>>
>> Has anybody already experimented such random behavior ?
>> Thanks for your answer.
>> Denis
>>
>>
>>     
>
>