The error shown is nothing to do with malloc, you are passing uninitialised
data to the kernel in the sendto() system call.
Ashley,
On 19 Jan 2010, at 14:24, Vasanta wrote:
> I looked into adpModuleDebug which was shown by stack trace - I don't have
> any mallocs except printfs/vsnprintf/sprintf (to log msgs into syslog)
>
>
> On Mon, Jan 18, 2010 at 4:49 PM, Ashley Pittman <[email protected]> wrote:
>
> On 18 Jan 2010, at 21:42, Vasanta wrote:
>
>> Thanks Ashley. on my target I don't have GDB, I have to copy GDB from host,
>> also I have to compile my code with -g option to debug that routine with gdb
>> to findout where exactly it is.
>
> You don't need to have gdb installed for Valgrind to work, it just uses the
> same debug info from the application. If gdb can show you line numbers
> valgrind should also be able to.
>
>> This is the first time I using this valgrind, I want to confirm for these
>> few lines below, always the error is: line below "sendto" line right, which
>> is pointed with red color text below?.
>
> This is the stack trace where uninitialised data is passed into the kernel.
>
>> ==2107== Syscall param socketcall.sendto(msg) points to uninitialised
>> byte(s)
>> ==2107== at 0x43B731E: sendto (in /lib/libpthread-2.5.so)
>> <----- Pthread routine
>>
>> ==2107== by 0x439A019: adpModuleDebug (in /pfrm2.0/lib/libi386adaptos.so)
>> <--- My module memory corruption
>>
>> ==2107== by 0x8059C4D: cacStatsUpdate (in /pfrm2.0/bin/cacd)
>>
>> ==2107== by 0x80524A4: cacdRun (in /pfrm2.0/bin/cacd)
>>
>> ==2107== by 0x805286F: main (in /pfrm2.0/bin/cacd)
>>
>> ==2107== Address 0xbefd44cc is on thread 1's stack
>>
>
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