Kernel panic with Cyrix Cx486 S25 CPU (similar to U5 CPU panic)

Kernel panic with Cyrix Cx486 S25 CPU (similar to U5 CPU panic)

Post by Paul Roger » Thu, 10 Nov 1994 11:37:47




He resolved his problem by installing an Intel CPU.

I have a Cyrix Cx486 S25 FasCache (Cx486S-25GP) processor that fails in
the same way.  The messages are:
   math_emulate: 0010:0010ebb4
   Kernel panic: Math emulation required in kernel
   In swapper task - not syncing

The kernel should have math emulation support.  It's the same kernel that
I use on a AMD 386SX/25.  I've also tried the boot/root image diskettes--
similar results.  I'm running Linux 1.0.8.

Any ideas?  TIA.
Paul.

 
 
 

Kernel panic with Cyrix Cx486 S25 CPU (similar to U5 CPU panic)

Post by Paul Roger » Tue, 15 Nov 1994 11:19:23


A little more information:  I downloaded Linux version 1.1.48 from
sunsite.unc.edu and it appears to run fine on the Cyrix processor.
Any explanations?

 
 
 

1. Kernel panic with U5 CPU ??


: HELLO !

: Does anybody know if there is incompapility with
: UMC Green CPU (486SX-33MHZ) known by BIOS as U5,
: and Linux. I have come to this conclution because of following
: errors on installation. And these messages come with BOOT disks.
: Depending on bios setups the messages are:

: 1)
: ..
: ..
: Calibrating delay loop..math_emulate:0010:0010ebe4
: Kernel panic: Math emulation needed in kernel
: In swapper task - not syncing

Hmmm... Looks like you are using a kernel without math emulation, which is
required when a 486 SX processor is used.

=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
Nicolas BOUGUES

Sysop of magix : ++ 33 (1) 45 21 02 52 (shell & uucp)

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