rhel4u2 kernel experiences

Martin Hunt hunt@redhat.com
Sun Aug 21 21:40:00 GMT 2005


On Sun, 2005-08-21 at 08:27 -0400, Frank Ch. Eigler wrote:
> Hi -
> 
> The tentative RHEL4U2 kernel (2.6.9-16.EL) running on FC3, with
> hand-recompiled elfutils-113 .src.rpm and a hand-compiled systemtap
> CVS, shows the best test results and functionality I've seen yet.
> 
> On the down side, return probes seem fragile.  For example,
> running this script:
>     probe kernel.function("sys_read") { log ("a") }
>     probe kernel.function("sys_read").return { log ("b") }
> results in 128 "a" messages, and countless "b" ones.

Maybe a side effect of the sys_read() feedback loop with the new
transport? 

Martin




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