Re: kern/40362 (KASSERT in pmap_enter)

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

The following reply was made to PR kern/40362; it has been noted by GNATS.

From: Manuel Bouyer <bouyer%antioche.eu.org@localhost>
To: Mindaugas Rasiukevicius <rmind%NetBSD.org@localhost>
Cc: David Holland <dholland-bugs%NetBSD.org@localhost>, 
gnats-bugs%NetBSD.org@localhost,
        netbsd-bugs%NetBSD.org@localhost, gnats-admin%NetBSD.org@localhost
Subject: Re: kern/40362 (KASSERT in pmap_enter)
Date: Sat, 13 Nov 2010 19:52:44 +0100

 On Sun, Aug 30, 2009 at 12:18:08AM +0200, Manuel Bouyer wrote:
 > > > 
 > > >  >>> panic: kernel diagnostic assertion "(opte & (PG_V | PG_W)) != PG_W"
 > > >  >>> failed: file "/chroots/netbsd-5/src/sys/arch/x86/x86/pmap.c", line 
 > > > 636
 > > > 
 > > > Didn't someone else report this recently?
 > > > 
 > > 
 > > Indeed, I forgot this:
 > > 
 > > http://mail-index.netbsd.org/port-i386/2009/08/17/msg001429.html
 > 
 > And port-i386/41934
 > 
 > > 
 > > Manuel, is that an Opteron with known CPU errata?
 > 
 > No it's a 3.0Ghz Xeon, single-CPU. It also has known errata,
 > intel document 302402-023,
 > title "64-bit Intel Xeon Processor with 800 MHz System Bus (1 MB and 2 MB
 > L2 Cache Versions) Specification Update August 2008"
 > 
 > But I have the latest BIOS and afaik the errata which could explain this
 > panic have a BIOS workaround.
 
 Also seen on a general-purpose server (no NFS on this one) with a:
 cpu0: Intel (686-class), 3192.10 MHz, id 0xf33
 cpu0: features 0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
 cpu0: features 0xbfebfbff<PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX>
 cpu0: features 0xbfebfbff<FXSR,SSE,SSE2,SS,HTT,TM,SBF>
 cpu0: features2 0x41d<SSE3,DTES64,MONITOR,DS-CPL,CID>
 cpu0: "Intel(R) Pentium(R) 4 CPU 3.20GHz"
 cpu0: I-cache 12K uOp cache 8-way, D-cache 16KB 64B/line 8-way
 cpu0: L2 cache 1MB 64B/line 8-way
 cpu0: ITLB 4K/4M: 64 entries
 cpu0: DTLB 4K/4M: 64 entries
 cpu0: Initial APIC ID 0
 cpu0: Cluster/Package ID 0
 cpu0: SMT ID 0
 cpu0: family 0f model 03 extfamily 00 extmodel 00
 
 -- 
 Manuel Bouyer <bouyer%antioche.eu.org@localhost>
      NetBSD: 26 ans d'experience feront toujours la difference
 --