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[Bug server/20557] It seems like that switching output file doesn't work.


https://sourceware.org/bugzilla/show_bug.cgi?id=20557

--- Comment #9 from David Smith <dsmith at redhat dot com> ---
(In reply to SteveTsai from comment #5)
> Thank you, David.
> 
> My platform is Ubuntu 14.04 LTS. It's a VM instance from Google cloud
> platform.
> 
> I run my script successfully. It run several days. The size of log was up to
> 7GB. 
> 
> Without those options, it displayed the result on screen correctly, without
> any error or warning.

Let's try something simple and get the udp and tcp tapsets out of the picture.
Try the following (which is what flightrec2.exp runs):

# stap -F -o f.out -S 1,3 -e 'probe timer.ms(10) { for (j = 0; j < 1000; j++)
printf("1234567890\n") }'

If that just creates 1 big file instead of 3 little ones that rotate, we'll
have to go deeper.

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