Memory subsystem error and freeze on 2.4.0-test12

Memory subsystem error and freeze on 2.4.0-test12

[Jussi Laako]

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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Re: Memory subsystem error and freeze on 2.4.0-test12

[Rik van Riel]

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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Re: Memory subsystem error and freeze on 2.4.0-test12

[David Weinehall]

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 <tao@acc.umu.se> /> Northern lights wander      \\
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Re: Memory subsystem error and freeze on 2.4.0-test12

[Jussi Laako]

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

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