On Fri, Sep 15, 2000 8:41 AM, Frank van der Linden
<mailto:fvdl@wasabisystems.com> wrote:
>On Fri, Sep 15, 2000 at 12:32:40PM +0200, Tom Javen wrote:
>> Any fixes for pmap zero panic on a old cyrix cpu ? (1.5ALPHA2)
>> If there are any patches I could do some testing.
>
>Problems with 6x86 related to page zeroing have been fixed by disabling
>it. What exactly is the type of your CPU (as in the dmesg output)?
>Do you have a trace?
>
>- Frank
>
>



My last (known) working build for cyrix MII was ALPHA2 from ~Aug.
15-17th SUP.

leopard$ dmesg
NetBSD 1.5_ALPHA2 (GEN) #5: Tue Aug 22 09:52:22 CDT 2000
    bruce@leopard:/usr/src/sys/arch/i386/compile/GEN
cpu0: Cyrix 6x86MX (686-class)
total memory = 64128 KB
avail memory = 53660 KB
using 827 buffers containing 3308 KB of memory





The build I made from Sep. 13 SUP, stopped with a 

(Copied by hand)
uvm_fault (0xc051bac0,0xc0636000,0,3) - > 1 kernel: page fault trap, code=0
Stoped in fsck_ffs at pmap_zero_page+0x39:  repe stosl %es:(%edi)

I also tested the Sep.12 netbsd.GENERIC.gz on ftp.netbsd.org, but
that died in the same way.


And for sources sup'ed Sep. 15.
NetBSD 1.5_ALPHA2 (GENERIC) #0: Sun Sep 17 05:50:56 CDT 2000
     bruce@leopard:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Cyrix 6x86MX (686-class)
total memory = 64128 KB
avail memory = 54332 KB
using 827 buffers containing 3308 KB of memory

uvm_fault (0xc051c340,0xc0636000,0,3) - > 1 kernel: page fault trap, code=0
pmap_zero_page(1f81000,0,561c1000,c051c2e0,8) at pmap_zero_page+0x39
uvm_pagealloc_start(
uao_get(
uvm_fault(




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