Messages in this thread | | | Date | Wed, 5 Mar 2008 22:56:31 +0100 | From | Andi Kleen <> | Subject | Re: 2.6.25-rc3-mm1 - PROFILE_LIKELY redux.. |
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On Wed, Mar 05, 2008 at 02:59:57PM -0500, Valdis.Kletnieks@vt.edu wrote: > On Wed, 05 Mar 2008 18:45:13 +0100, Andi Kleen said: > > Valdis.Kletnieks@vt.edu writes: > > > > > > So we're in the same 4K as the VDSO64_* values, but some 0x4fe past the > > > gtod_data. Anybody got a hint as to what the heck it was doing? > > > > Try this patch: > > > > Remove unlikelies in vsyscall path > > Nope, sorry... same behavior. Apparently it's a (un)likely someplace > else... > > I'm trying to figure out what's at 0x9be into the vdso, but not having > a lot of luck.
You can do objdump -Sr on the vdso/vsyscall object files and see if there are any external references to unlikely related functions. If yes the problem is in that function
-Andi
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