2000-12-14 11:30:27

by Jussi Laako

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Subject: Memory subsystem error and freeze on 2.4.0-test12

Hello,

Is this normal:

Dec 14 12:33:32 alien kernel: __alloc_pages: 2-order allocation failed.

System deadlocked about one minute later.

I have hard resource limits set.

- Jussi Laako

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2000-12-14 17:47:26

by Rik van Riel

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Subject: Re: Memory subsystem error and freeze on 2.4.0-test12

On Thu, 14 Dec 2000, Jussi Laako wrote:

> Is this normal:
>
> Dec 14 12:33:32 alien kernel: __alloc_pages: 2-order allocation failed.

This means that somebody tried to allocate a physically
contiguous area of 2^2 = 8 pages, but such an area
wasn't available.

> System deadlocked about one minute later.

Any idea which part of the kernel deadlocked? Was it
the network driver, the VM subsystem, .... ?

Rik
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2000-12-14 18:19:28

by David Weinehall

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Subject: Re: Memory subsystem error and freeze on 2.4.0-test12

On Thu, Dec 14, 2000 at 03:16:06PM -0200, Rik van Riel wrote:
> On Thu, 14 Dec 2000, Jussi Laako wrote:
>
> > Is this normal:
> >
> > Dec 14 12:33:32 alien kernel: __alloc_pages: 2-order allocation failed.
>
> This means that somebody tried to allocate a physically
> contiguous area of 2^2 = 8 pages, but such an area
> wasn't available.

Ehrm. 2^2 = 4.


/David
_ _
// David Weinehall <[email protected]> /> Northern lights wander \\
// Project MCA Linux hacker // Dance across the winter sky //
\> http://www.acc.umu.se/~tao/ </ Full colour fire </

2000-12-15 08:45:46

by Jussi Laako

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Subject: Re: Memory subsystem error and freeze on 2.4.0-test12

Rik van Riel wrote:
>
> > Dec 14 12:33:32 alien kernel: __alloc_pages: 2-order allocation failed.
> > System deadlocked about one minute later.
> Any idea which part of the kernel deadlocked? Was it
> the network driver, the VM subsystem, .... ?

I suspect the VM, it's been doing strange things since -test11, -test10 was
working fine. There was heavy fork operation going on (about 50 processes).

Today got also 3-order allocation failures, probably from IDE driver or SCSI
cdrom because cdda2wav triggered them. It happens every time when I start
cdda2wav (with -B option). CDRW drive is only IDE device in the system,
harddisks are SCSI.

- Jussi Laako

--
PGP key fingerprint: 3827 6A53 B7F9 180E D971 362B BB53 C8A1 B578 D249
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