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List:       openbsd-bugs
Subject:    Re: i386 GENERIC 5.8 build #1066 crashes while booting on AMD 5x86 133, 5.7 #738 and 5.9-current #15
From:       Frank Scheiner <frank.scheiner () web ! de>
Date:       2016-02-12 11:26:24
Message-ID: 56BDC160.7060206 () web ! de
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On 02/11/2016 05:06 PM, Stuart Henderson wrote:
> [...]
> > I see, thanks for clarification. I'd like to fix that locally in a 5.8
> > kernel, would you be so kind to point me to the relevant file(s) in the
> > source code and the patch?
> 
> See /sys/arch/i386/i386/cpu.c rev 1.68.
> 

Thanks a lot for the pointer. I've applied [this diff/patch] and 
recompiled on a faster system to save time. Works fine now:

```
OpenBSD 5.8 (GENERIC) #0: Fri Feb 12 12:11:58 MST 2016
     root@dl380-g2.domain.tld:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: AMD Am5x86 W/B 133/160 ("AuthenticAMD" 486-class)
cpu0: FPU
real mem  = 100155392 (95MB)
avail mem = 85897216 (81MB)
warning: no entropy supplied by boot loader
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: date 07/03/96, BIOS32 rev. 0 @ 0xfbd40
apm0 at bios0: Power Management spec V1.1 (slowidle)
apm0: APM engage (device 1): power management disabled (1)
pcibios0 at bios0: rev 2.1 @ 0xf0000/0xc260
pcibios0: PCI BIOS has 3 Interrupt Routing table entries
pcibios0: no compatible PCI ICU found
pcibios0: Warning, unable to fix up PCI interrupt routing
pcibios0: PCI bus #0 is the last bus
bios0: ROM list: 0xc0000/0x8000 0xc8000/0x1800 0xef000/0x1000!
cpu0 at mainbus0: (uniprocessor)
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
[...]
PXE boot MAC address 00:50:8b:ba:m4:86, interface fxp0
nfs_boot: using interface fxp0, with revarp & bootparams
fxp0: error 5, could not read firmware fxp-d101ma
nfs_boot: client_addr=192.168.178.42
fxp0: error 5, could not read firmware fxp-d101ma
nfs_boot: server_addr=192.168.178.3 hostname=am486.domain.tld
root on 192.168.178.9:/srv/nfs/am486/root
swap on 192.168.178.9:/srv/nfs/am486/swap
```

Bye
Frank Scheiner

[this diff/patch]: 
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/cpu.c.diff?r1=text&tr1=1.67&r2=text&tr2=1.68



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