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SubjectRe: 2.4.13-ac2/3/5: Strange cache memory report
From
On approximately Thu, Nov 01, 2001 at 09:26:39AM +0100, Alexander Kellett wrote:
> > Hey,
> >
> > I've noticed a strange bug in 2.4.13-ac2, 3, and 5. (It wasn't
> > there in 2.4.12-ac2) Namely, shortly after starting X, the reported
> > amount of cached memory spikes to somewhere around 18 hexabytes.
> > Needless to say, I don't have this much memory. :-)
>
> Rik posted a patch yesterday to fix this.
>

Here is the mentioned patch again.




--- linux-2.4.13-ac5/fs/proc/proc_misc.c.blkpg Wed Oct 31 13:09:51 2001
+++ linux-2.4.13-ac5/fs/proc/proc_misc.c Wed Oct 31 13:12:27 2001
@@ -140,7 +140,9 @@
{
struct sysinfo i;
int len;
- int pg_size;
+ unsigned int cached;
+
+ cached = atomic_read(&page_cache_size) - atomic_read(&shmem_nrpages);

/*
* display in kilobytes.
@@ -149,14 +151,12 @@
#define B(x) ((unsigned long long)(x) << PAGE_SHIFT)
si_meminfo(&i);
si_swapinfo(&i);
- pg_size = atomic_read(&page_cache_size) - i.bufferram ;
-
len = sprintf(page, " total: used: free: shared: buffers: cached:\n"
"Mem: %8Lu %8Lu %8Lu %8Lu %8Lu %8Lu\n"
"Swap: %8Lu %8Lu %8Lu\n",
B(i.totalram), B(i.totalram-i.freeram), B(i.freeram),
B(i.sharedram), B(i.bufferram),
- B(pg_size), B(i.totalswap),
+ B(cached), B(i.totalswap),
B(i.totalswap-i.freeswap), B(i.freeswap));
/*
* Tagged format, for easy grepping and expansion.
@@ -184,7 +184,7 @@
K(i.freeram),
K(i.sharedram),
K(i.bufferram),
- K(pg_size - swapper_space.nrpages),
+ K(cached - swapper_space.nrpages),
K(swapper_space.nrpages),
K(nr_active_pages),
K(nr_inactive_dirty_pages),
--
Linux, the choice | <doogie> Thinking is dangerous. It leads
of a GNU generation -o) | to ideas. -- Seen on #Debian
Kernel 2.4.14-pre6 /\ |
on a i586 _\_v |
|
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