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[Bug tapsets/11421] probe point mismatch while resolving probe point vfs.read


------- Additional Comments From dsmith at redhat dot com  2010-03-23 14:16 -------
(In reply to comment #0)
> In section 2.1.3
>
(http://sourceware.org/systemtap/SystemTap_Beginners_Guide/using-systemtap.html#testing),
> it says to try:
> 
> stap -v -e 'probe vfs.read {printf("read performed\n"); exit()}'
> 
> This doesn't work...

Can you try the following?  'vfs.read' maps to 'kernel.function("vfs_read")'

# stap -v -e 'probe kernel.function("vfs_read") {printf("read performed\n");
exit()}'

Also, as Frank mentioned, the output of 'stap-report' will be helpful.


-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=11421

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