Messages in this thread | | | Subject | Re: oprofile BUG() in current kernel. | From | Gianni Tedesco <> | Date | Tue, 13 May 2008 11:59:52 +0100 |
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On Tue, 2008-05-13 at 12:25 +0200, Eric Dumazet wrote: > Gianni Tedesco a écrit : > > > > > > Nope, exact same bad paging request in kernel mode... probably the bug > > is something deep in oprofile then? > > > Hum... Are you using oprofile as a module or statically included in kernel ?
Yes module
> Current module loader only allocates percpu room by examining > ".data.percpu" section and should be augmented to also look at > ".data.percpu.shared_aligned" > Or, change DEFINE_PER_CPU_SHARED_ALIGNED() for modules (to use > ".data.percpu" only) > > Anyway, with the per_cpu conversion of cpu_buffer, we dont need to > request cache_line alignment anymore > > [PATCH] oprofile: Dont request cache line alignment for cpu_buffer
Nice theory, but with percpu + this patch, it still leads to the same BUG trap :(
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