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SubjectRe: Severe trashing in 2.4.4


On Sun, 29 Apr 2001, Frank de Lange wrote:

> On Sun, Apr 29, 2001 at 12:27:29PM -0400, Alexander Viro wrote:
> > What about /proc/slabinfo? Notice that 2.4.4 (and couple of the 2.4.4-pre)
> > has a bug in prune_icache() that makes it underestimate the amount of
> > freeable inodes.
>
> Gotcha, wrt. slabinfo. Seems 2.4.4 (at least on my box) only knows how to
> allocate skbuff_head_cache entries, not how to free them. Here's the last
> /proc/slabinfo entry before I sysRQ'd the box:

> skbuff_head_cache 341136 341136 160 14214 14214 1 : 252 126
> size-2048 66338 66338 2048 33169 33169 1 : 60 30

Hmm... I'd say that you also have a leak in kmalloc()'ed stuff - something
in 1K--2K range. From your logs it looks like the thing never shrinks and
grows prettu fast...

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