Re: [PATCH] Important per-cpu fix.

From: Dipankar Sarma (dipankar@in.ibm.com)
Date: Thu Sep 05 2002 - 04:10:23 EST

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In article <20020904023535.73D922C12D@lists.samba.org> Rusty Russell wrote:
> Frankly, I'm amazed the kernel worked for long without this.

> Every linker script thinks the section is called .data.percpu.
> Without this patch, every CPU ends up sharing the same "per-cpu"
> variable.

> This might explain the wierd per-cpu problem reports from Andrew and
> Dave, and also that nagging feeling that I'm an idiot...

Not only does this fix the tasklet BUG with 2.5.32 but it also fixes a serial
console hang with my 2.5.32 version of Ingo/Davem/Alexey's scalable timers
code that I have been debugging for the last two days. I use
a per-cpu tasklet to run the timers, so it was probably killing me
there.

Thanks

-- 
Dipankar Sarma  <dipankar@in.ibm.com> http://lse.sourceforge.net
Linux Technology Center, IBM Software Lab, Bangalore, India.
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Next message: William Lee Irwin III: "Re: [BUG] __write_lock_failed() oops"
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