Re: 2.5.59-mm5

[Andrew Morton <akpm@digeo.com>]

Ed Tomlinson <tomlins@cam.org> wrote:
>
> The excessive copy_foo_user times are still there with Oleg (and Chris's) patch
> removed.  Here is what I see doing:
> 
> "apt-get install --reinstall squidguard chastity-list"
> 
> (with file_write from my first message)
>  55091 default_idle                             1377.2750
>  62640 __copy_from_user_ll                      1204.6154
>  33595 __copy_to_user_ll                        646.0577
> 
> (without file_write)
>  40259 __copy_from_user_ll                      774.2115
>  18735 default_idle                             468.3750
>  21524 __copy_to_user_ll                        413.9231 
>    386 system_call                                8.0417
>    428 current_kernel_time                        7.1333

Is this different from 2.5.59 base?

It's beginning to look like copy_foo_user() itself has gone silly.

I don't know what's causing this, Ed.  Could you please dig into it a little
more?  Does it happen with a bare `dd'?  Or is it networking?  etcetera...
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