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SubjectRe: System slowdown on 2.4.2-ac5 (recurring from 2.4.1-ac20 and 2.4.0)
On Tue, 6 Mar 2001, Vibol Hou wrote:

> Hi,
>
> This is a follow up report on a server I run which is now using 2.4.2-ac5.
> It was suggested that the problem might be a NIC driver issue, but that
> seems unlikely at this point.
>
> You can find my previous posts at the following links to get a better idea
> of what I am encountering:
>
> http://www.uwsg.indiana.edu/hypermail/linux/kernel/0101.3/0470.html
> http://www.uwsg.indiana.edu/hypermail/linux/kernel/0102.3/0401.html
>
> The problem still persists with the new 2.4.2-ac5 kernel, and I have a
> feeling it has to do with the VM subsystem. The system runs Apache, MySQL,
> and Sendmail. It has ~900MB RAM. The first lockup in 2.4.2-ac5 occured

Hi,

This portion of your log...

httpd S 7FFFFFFF 3700 15058 1684 (NOTLB) 15061 15055
Call Trace: [<IN MWaI tcWahtdochg do[] <ce01ted9c9t2edd> L] OC[K<UPc0 o1ndb
1CPadU0>], re[<gic0st1e1r3bsf:
8>] C[<c<c001f1f2f2afa66>>]] [ < c0 01c013f05:[5<>]c 010[<7ec0411>c4]3
8d>EF] LA
GS: 0 00 00 0 8[7
<c0 eac0x:2 8ac042208a[>]<c 0 13 e32bxd3: >]ce 8[4a<c00010 26 e6ec0>x:]
f7[<94ce0013803 43 5>ed]x : [0<0c00010008e00c
b>] e
i:dht tp d 0 0 Se dDi:7 A4ce3F8428a0 00 0eb 1p:5 0c601 28 a
412680 4 es p: ce8 (4NbeOTfLc
B) ds: 0018 es: 0018 ss: 0018

...leads me to believe that the NMI-Watchdog fired. (I think that points
the finger away from VM, but..) It looks like it's saying that a lock
of cpu 0 was detected if I squint at it right. It's too munged to tell.

-Mike

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