kern/54439: npf causes kernel panic (pr_find_pagehead)

[htodd%i8u.org@localhost]

>Number:         54439
>Category:       kern
>Synopsis:       npf causes kernel panic (pr_find_pagehead)
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Aug 05 19:30:02 +0000 2019
>Originator:     Hisashi Todd Fujinaka
>Release:        NetBSD 9.0_BETA
>Organization:
Hisashi T Fujinaka - htodd%twofifty.com@localhost
>Environment:
	
	
System: NetBSD emily.i8u.org 9.0_BETA NetBSD 9.0_BETA (CHRIS) #321: Wed Jul 31 17:09:31 PDT 2019 htodd%chris.i8u.org@localhost:/usr/obj/amd64/sys/arch/i386/compile/EMILY i386
Architecture: i386
Machine: i386
>Description:
I didn't see an actual pr for this issue, just mailing list conversations.
http://mail-index.netbsd.org/current-users/2019/08/01/msg036316.html

[ 1055.9565284] panic: pr_find_pagehead: [npfcn4pl] item 0xc25db2dc poolid 173 != 172
[ 1055.9565284] cpu0: Begin traceback...
[ 1055.9565284] vpanic(c0677a98,da27ce98,da27cee0,c04adab4,c0677a98,c061be2c,c066782d,c25db2dc,ad,ac) at netbsd:vpanic+0x12d
[ 1055.9565284] snprintf(c0677a98,c061be2c,c066782d,c25db2dc,ad,ac,c1c1ba26,0,c07806c4,da27cee4) at netbsd:snprintf
[ 1055.9565284] pool_put(c1c1b940,c25db2dc,c2015e00,c25db2dc,c1c1b940,c1c1ba24,c2b6f500,da27cf30,c04aea3b,0) at netbsd:pool_put+0x3bd
[ 1055.9565284] pool_cache_invalidate_groups(0,0,c1c1b940,0,c251ab00,c2b6fe80,c1c1b940,0,c1e49c60,da27cf70) at netbsd:pool_cache_invalidate_groups+0x51
[ 1055.9565284] pool_cache_invalidate(c1c1b940,da27cf5c,c048b792,c1e49c60,c07bde2e,c07bde20,c1e49ccc,c07bde2c,c07bde20,da27cf00) at netbsd:pool_cache_invalidate+0x9e
[ 1055.9565284] pool_reclaim(c1c1b940,0,c044e950,c1e49c60,da27cf9c,c044e9c8,0,c07bde2c,c1e49c60,0) at netbsd:pool_reclaim+0x54
[ 1055.9565284] pool_drain(0,c07bde2c,c1e49c60,0,c0100411,c1e49c60,898000,89f000,0,c01003fd) at netbsd:pool_drain+0x65
[ 1055.9565284] uvmpd_pool_drain_thread(c1e49c60,898000,89f000,0,c01003fd,0,0,0,0,0) at netbsd:uvmpd_pool_drain_thread+0x78
[ 1055.9565284] cpu0: End traceback...
	
>How-To-Repeat:
Just running netbsd-9 on my router.
>Fix:
	

>Unformatted: