Re: Lookup during intensive IO
> On Monday 17 September 2001 11:42 am, Jose Manuel dos Santos Calhariz wrote:
> > I am lost, I don't know what to do find the cause of the problem.
> > When I put the machine under IO stress the it lookup. It hapens
> > during backup of the machine by the network to an amanda server.
> > Doing tar of the filesystems can lookup the machine.
> >
> > What I have done to try to isolate the problem:
> > - I have run memtest86 during more than one day without errors, to
> > catch memory errors.
> > - I have run burnK7 see if it was a heat problem. The CPU heated
> > until 82 degrees and didn't crash.
> > - With the CPU at 82 degrees I could compile the Linux kernel. And
> > off course the temperature have gone down.
> > - I have tried many kernels: 2.2.19, 2.4.7-686, 2.4.9-k6,
> > 2.4.9-386. And was the same.
> >
> > The hardware of the machine is:
> > - AMD Atlhon 900 MHz
> > - 256MB SRAM
> > - Motherboard is a ASUS A7V with VIA KT133
> > - A second IDE controler Promise PDC20265
> > - hda: Maxtor 91152D8, ATA DISK drive 11GB
> > - hdb: Maxtor 90648D3, ATA DISK drive 6GB UltraDMA33
> > - hdc: Maxtor 98196H8, ATA DISK drive 80GB UltraDMA33
> > - Adaptec 2940U
> > - scd0: Vendor: PLEXTOR Model: CD-R PX-R412C Rev: 1.07
> > - scd1: Vendor: PLEXTOR Model: CD-ROM PX-20TS Rev: 1.01
> >
> > What can I do more to find the cause of the lookups.
AFAIK, Linux kernel have DMA for Via chipsets disabled by default. Did
you enable them? If so, try building a kernel without it.
--
Christoph Simon
datageo@terra.com.br
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