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kern/45177: DIAGNOSTIC panic: arch/x86/x86/pmap.c:3215: KASSERT(uvm_page_locked_p(pg)) fails

>Number:         45177
>Category:       kern
>Synopsis:       DIAGNOSTIC panic: arch/x86/x86/pmap.c:3215: 
>KASSERT(uvm_page_locked_p(pg)) fails
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jul 24 18:20:00 +0000 2011
>Originator:     Frank Kardel
>Release:        NetBSD 5.99.55
System: NetBSD 5.99.55 NetBSD 5.99.55 (PIPGEN) #43: Mon Jun 13 
09:18:54 MEST 2011
Architecture: amd64
Machine: amd64
        With 5.99.55 amd64 I started to get KASSERT(uvm_page_locked_p(pg) 
panics from postgresql running in i386 emulation mode. 5.99.54 didn't seen to 

        Hand copied stack trace:
        panic in arch/x86/x86/pmap.c:3215 ($NetBSD: pmap.c,v 1.127 2011/07/05 
14:07:12 yamt Exp $)

        postgresql opens files with O_DIRECT. 
        run "ANALYZE VERBOSE" on a large table with postgresql(i386) and amd64 
5.99.55. Sometimes the panic also happens at startup of postgresql.



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