On 11/08/2010 08:51 PM, Rob Woolley wrote:
Hi Xufeng,
Are you using our kernel?
No, I'm using the mainline kernel.
Thanks,
Xufeng Zhang
If so, you may wish to contact the Linux Production Division kernel
team for help before going to LKML.
Best regards,
Rob
On Mon, Nov 8, 2010 at 12:20 AM, xufeng zhang
<[email protected] <mailto:[email protected]>> wrote:
On 11/08/2010 09:45 AM, Benjamin Poirier wrote:
On 05/11/10 02:24 AM, xufeng zhang wrote:
Hi,
I'm using ltt-control-0.86 and lttv-0.12.31 on ARM to
trace the kernel,
however,
Hello,
Which version of the kernel tracer patches are you using?
I have query the developers who merged LTTng into kernel, they
said there is no incompatibility
between LTTV and LTTng, so does there any other reasons which lead
to this error?
Thanks,
Xufeng Zhang
-Ben
I cannot view the trace after I have successfully
generated, here is the
error
when I run 'lttv-gui -t trace1' command:
** Message: statistics viewer : background computation
data ready.
** (lttv.real:6559): WARNING **: Cannot find pin_in in
schedchange 671
** ERROR **: Kernel/LTTV event size differs for event
udpv4_rcv_extended: kernel 32, LTTV 28
aborting...
/usr/local/bin/lttv-gui: line 10: 6559 Aborted
$LTTV_CMD.real -m lttvwindow -m guievents -m guifilter -m
guicontrolflow
-m resourceview -m guistat
And I found another people met the same problem on MIPS32,
a patch have
also been provided for MIPS32.
Here is the similar code in ARM trace-clock.c:
linux/arch/arm/mach-omap2/trace-clock.c line 537
void get_trace_clock(void)
{
spin_lock(&trace_clock_lock);
if (trace_clock_refcount++)
goto end;
_start_trace_clock();
end:
spin_unlock(&trace_clock_lock);
}
EXPORT_SYMBOL_GPL(get_trace_clock);
void put_trace_clock(void)
{
spin_lock(&trace_clock_lock);
WARN_ON(trace_clock_refcount<= 0);
if (trace_clock_refcount != 1)
goto end;
_stop_trace_clock();
end:
trace_clock_refcount--;
spin_unlock(&trace_clock_lock);
}
EXPORT_SYMBOL_GPL(put_trace_clock);
Could anybody figure out what's wrong with the kernel
code? Any
suggestion would be appreciated.
Thanks,
Xufeng Zhang
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