Re: 2.4.20, .text.lock.swap cpu usage? (ibm x440)

[Andrew Morton]

Chris Wood wrote:
> 
> Due to kswapd problems in Redhat's 2.4.9 kernel, I have had to upgrade
> to the 2.4.20 kernel with the IBM Summit Patches for our IBM x440.
> ...
> 16480 total                                      0.0138
>    6383 .text.lock.swap                          110.0517
>    4689 .text.lock.vmscan                         28.2470
>    4486 shrink_cache                               4.6729
>     168 rw_swap_page_base                          0.6176
>     124 prune_icache                               0.5167

With six gigs of memory, it looks like the VM has gone nuts
trying to locate some reclaimable lowmem.

Suggest you send the contents of /proc/meminfo and /proc/slabinfo,
captured during a period of misbehaviour.

Then please apply 
http://www.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.20aa1.bz2
and send a report on the outcome.