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Re: get syscall num in updateSyscallExit

Yao Qi wrote: 
Some of test cases get syscall num in updateSyscallExit by means of
syscallEventInfo.number (task), but it seems that it is not right all
the time.

We find that we fail to get syscall number when EXIT rt_sigreturn and
sigreturn on x86/x86-64/ppc64.  On x86 and x86-64, the syscall number
got when exit rt_sigreturn is -1.

I am not sure it is the kernel problem or not. Any comments on this?
Thanks!
I dont think its a kernel bug. I have a feeling that we are not allowed to look
at that value on syscallExit event only syscallEnter. Please file a bug and assign
it to me :). If you have a test case that would be great

Thanx,
 Sami

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