Re: Total freeze with 2.1.12[7,8]

Pascal A. Dupuis (dupuis@lei.ucl.ac.be)
Tue, 17 Nov 1998 12:27:36 +0100 (CET)


On Mon, 16 Nov 1998, Andrea Arcangeli wrote:

> I don' t think to have fixed something. Please try to be more aggressive
> against the `arca' kernel since it should lock as with clean 2.1.128.
>
This is still another follow-up...
Having read the SMP-Howto, I now know I must disable APM support. Kernels
which hanged were compiled with APM, although I got messages at boot
saying it was disabled. I suspect that, altough APM was said disabled,
there were still some (fatal) interactions in the kernel.

I've tested 2.1.128+arca20 and 2.1.129-pre4, both without APM support : no
hanging, even under heavy load (rc5des, 3 netscape sessions, ...).
Context : MB Asus P2B-DS, two PII-330 Mhz. But I still loose from time
to time the ethernet connection (Intel eepro10)

So, shouldn't APM be disabled if SMP is defined, until we get SPM-safe APM
BIOS ? Or at least have a message clearly stating that APM MUST be
disabled in this case ?

Greetings

Pascal A. Dupuis

-- 
feature, n: A surprising property of a program.  Occasionaly documented.
To call a property a feature sometimes means the author did not consider
that case, and the program makes an unexpected, though not necessarily
wrong response.  See BUG.  "That's not a bug, it's a feature!"  A bug can
be changed to a feature by documenting it.

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