2002-02-01 16:21:23

by Anthony Campbell

[permalink] [raw]
Subject: Repeated lockups caused by ext3?

For the past couple of months I have been getting repeated lockups using
2.4 kernels; 2.4.17 at present. They always occur when I'm on line and
downloading, never at other times, and never on kernel 2.2.20. No
particular process seems to cause it. When it happens, all keys are
inoperative, the modem stops working, and the hard disk light is
permanently on.

They never occur on my laptop, using kernel 2.4.17.

They began to occur at about 2.4.10. I kept attributing them to VM
issues and fiddled with all sorts of things in the BIOS, without
result.

However, I've now found that they don't occur if I don't use ext3. This
therefore seems to be the answer in my case. Is this a known issue, and
is there any way of getting ext3 to work?

For the record: Processor is Intel Coppermine 600Mhz; 192M memory.
Not using hdparm.

Anthony


--
Anthony Campbell - running Linux GNU/Debian (Windows-free zone)
For an electronic book (The Assassins of Alamut), skeptical
essays, and over 150 book reviews, go to: http://www.acampbell.org.uk/

Our planet is a lonely speck in the great enveloping cosmic dark. In our
obscurity, in all this vastness, there is no hint that help will come
from elsewhere to save us from ourselves. [Carl Sagan]




2002-02-01 22:24:29

by Matti Aarnio

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Subject: Re: Repeated lockups caused by ext3?

On Fri, Feb 01, 2002 at 04:20:55PM +0000, Anthony Campbell wrote:
> For the past couple of months I have been getting repeated lockups using
> 2.4 kernels; 2.4.17 at present. They always occur when I'm on line and
> downloading, never at other times, and never on kernel 2.2.20. No
> particular process seems to cause it. When it happens, all keys are
> inoperative, the modem stops working, and the hard disk light is
> permanently on.
>
> They never occur on my laptop, using kernel 2.4.17.
>
> They began to occur at about 2.4.10. I kept attributing them to VM
> issues and fiddled with all sorts of things in the BIOS, without
> result.
>
> However, I've now found that they don't occur if I don't use ext3. This
> therefore seems to be the answer in my case. Is this a known issue, and
> is there any way of getting ext3 to work?
>
> For the record: Processor is Intel Coppermine 600Mhz; 192M memory.
> Not using hdparm.

Oh dear.. uniprocessor ?
I get SMP machine to hang when writing 1+ GB file to EXT3 on RAID-1, and
having more than 512 MB memory...

> Anthony
> --
> Anthony Campbell - running Linux GNU/Debian (Windows-free zone)
> For an electronic book (The Assassins of Alamut), skeptical
> essays, and over 150 book reviews, go to: http://www.acampbell.org.uk/

/Matti Aarnio

2002-02-02 19:16:43

by Anthony Campbell

[permalink] [raw]
Subject: Re: Repeated lockups caused by ext3?

On 02 Feb 2002, Matti Aarnio wrote:
>
> Oh dear.. uniprocessor ?
> I get SMP machine to hang when writing 1+ GB file to EXT3 on RAID-1, and
> having more than 512 MB memory...
>

This certainly sounds as if it might be relevant. In my case it only
occurs with long downloads, not with mail. And it hasn't happened at all
since turning off ext3.

Anthony

--
Anthony Campbell - running Linux GNU/Debian (Windows-free zone)
For an electronic book (The Assassins of Alamut), skeptical
essays, and over 150 book reviews, go to: http://www.acampbell.org.uk/

Our planet is a lonely speck in the great enveloping cosmic dark. In our
obscurity, in all this vastness, there is no hint that help will come
from elsewhere to save us from ourselves. [Carl Sagan]