RE: Kernel 2.0.30 pre-X SMP (in)stability report

Thomas Schenk (tschenk@dejanews.com)
Thu, 18 Sep 1997 14:42:40 -0500 (CDT)


On 18-Sep-97 Agus Budy Wuysang wrote:
>Before the real 2.0.31 is released, I would like to share
>my own experience with the prepatches. So far I have found
>that:
>- Prepatch 2 is the most reliable/stable.
>- Prepatch 5 & 9 is not stable for my hardware.

I have not found this to be true. I have found that the latest prepatch (9)
is quite stable on our hardware.

>
>Symptom:
>- Total lock up during heavy load & swapping.
>- no log in syslogs.
>
>Kernel configuration:
>- SMP enabled.
>- QNX style scheduling patch applied.

I think that this introduces too much uncertainty and I don't think that
problems reported by people using the QNX scheduler should have any impact
on whether or not 2.0.31 is released, regardless of whether the problem is
attributed to the patch or not.

>
>Hardware configuration:
>- Dell OptiPlex GXPro
>- Dual PPro 200MHz 256K
>- 32Mb memory
>- Matrox MGA Millenium 4Mb ram
>- 3Com 59x Vortex series network card
>- Adaptec 2940 w/ bios V1.11. This is going to be replaced soon
> with Buslogic (either the Flashpoint or 948), I will retest
> and report the pre-patch#9 result afterward.

I have been watching the reported problems with prepatch 9 and the bulk of
them are related to this SCSI adapter. We use the Buslogic 958 controllers
here and have been having great success with it. It seems from a cursory
examination that the Adaptec 2940 driver problem is the only real show
stopping bug reported thus far.

BTW, our hardware configuration is very similar to yours.

- Dell OptiPlex GXPro
- Dual PPro 200MHz
- 256Mb memory
- S3 video cards (various models)
- 3Com 905 nic
- Buslogic 958 SCSI controllers
- Seagate Barracuda drives (4G - 9G, between 5 and 9 drives per machine)

Tom

--
+-----------------------+-------------------------+------------------------+
| Tom Schenk            | Use Linux!              | All opinions expressed |
| tschenk@bga.com       |    Friends don't let    | are mine and not those |
| tschenk@theoffice.net |     friends do Windows! | of my employer.        |
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