2003-09-27 15:30:37

by Jason Lewis

[permalink] [raw]
Subject: [BUG 2.6.90-test5] kernel shits itself with 48mb ram under moderate load

Hi,

I have just tried out my first 2.6test5 kernel. upgrading from 2.4.17.

I seem to be experiencing some problems with it. boot and load X ok, but
as soon as I try and do anything interesting in X, like run xchat, or
apt-get update, the system grings to a halt. the load goes through the
roof, and the hdd starts grinding away madly.

But I can run my system quite succesfully under 2.4

A friend told me I should send you the output of a vmstat 1, while its
churning away. So I have made a log which I have included in this email.

Pleaes CC resposes to me as I am not part of this mailing list.

Hope this is of some use.

Let me know if you need any more information about this.

Jason



Attachments:
vmstat.log (19.54 kB)

2003-09-27 17:26:50

by Roger Luethi

[permalink] [raw]
Subject: Re: [BUG 2.6.90-test5] kernel shits itself with 48mb ram under moderate load

On Sun, 28 Sep 2003 01:26:34 +1000, Jason Lewis wrote:
> I seem to be experiencing some problems with it. boot and load X ok, but
> as soon as I try and do anything interesting in X, like run xchat, or
> apt-get update, the system grings to a halt. the load goes through the
> roof, and the hdd starts grinding away madly.
>
> But I can run my system quite succesfully under 2.4
>
> [...]
>
> Script started on Sun 28 Sep 2003 00:56:41 EST
> procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
> r b swpd free buff cache si so bi bo in cs us sy id wa
> [...]
> 1 8 0 3360 836 6024 0 0 16404 16 3666 2158 1 13 0 86
> 1 11 0 3504 828 5888 0 0 14956 4 6185 3344 0 11 0 89
> 3 9 0 3392 816 6016 0 0 6864 0 3903 2088 0 11 0 89
> 2 13 0 3464 820 5880 0 0 11148 0 3105 1960 0 12 0 87
> 0 12 0 3424 816 6008 0 0 19712 0 5519 3184 0 12 0 87

^^^^
Looks like you don't have swap enabled. Are successful 2.4 runs with or
without swap?

Roger

2003-09-28 00:44:12

by Jason Lewis

[permalink] [raw]
Subject: Re: [BUG 2.6.90-test5] kernel shits itself with 48mb ram under moderate load

Hi Roger,

Thanks for your reply.

I realised my swap space was version 0, and 2.6 doesn't support it, so it
wasn't enabling swap.

Problem solved.

Thanks,

Jason

On Sat, 27 Sep 2003, Roger Luethi wrote:

> On Sun, 28 Sep 2003 01:26:34 +1000, Jason Lewis wrote:
> > I seem to be experiencing some problems with it. boot and load X ok, but
> > as soon as I try and do anything interesting in X, like run xchat, or
> > apt-get update, the system grings to a halt. the load goes through the
> > roof, and the hdd starts grinding away madly.
> >
> > But I can run my system quite succesfully under 2.4
> >
> > [...]
> >
> > Script started on Sun 28 Sep 2003 00:56:41 EST
> > procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
> > r b swpd free buff cache si so bi bo in cs us sy id wa
> > [...]
> > 1 8 0 3360 836 6024 0 0 16404 16 3666 2158 1 13 0 86
> > 1 11 0 3504 828 5888 0 0 14956 4 6185 3344 0 11 0 89
> > 3 9 0 3392 816 6016 0 0 6864 0 3903 2088 0 11 0 89
> > 2 13 0 3464 820 5880 0 0 11148 0 3105 1960 0 12 0 87
> > 0 12 0 3424 816 6008 0 0 19712 0 5519 3184 0 12 0 87
>
> ^^^^
> Looks like you don't have swap enabled. Are successful 2.4 runs with or
> without swap?
>
> Roger
> -
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