NetBSD Problem Report #56365
From jarle@festningen.uninett.no Mon Aug 16 16:26:36 2021
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Message-Id: <20210816162626.CB39A1702642@festningen.uninett.no>
Date: Mon, 16 Aug 2021 18:26:26 +0200 (CEST)
From: jarle@norid.no
Reply-To: jarle@norid.no
To: gnats-bugs@NetBSD.org
Subject: LFS/UVM panic: "uvm_page_owner_locked_p(pg, false)" failed
X-Send-Pr-Version: 3.95
>Number: 56365
>Category: kern
>Synopsis: LFS/UVM panic: "uvm_page_owner_locked_p(pg, false)" failed
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: kern-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Mon Aug 16 16:30:00 +0000 2021
>Originator: Jarle Fredrik Greipsland
>Release: NetBSD 9.99.88
>Organization:
>Environment:
System: NetBSD vm-2129.internal.tekno.greipsland.no 9.99.88 NetBSD 9.99.88 (XEN3_DOMU) #5: Tue Aug 10 14:57:02 CEST 2021 jarle@nbuilder.internal.tekno.greipsland.no:/build/current/amd64/obj/sys/arch/amd64/compile/XEN3_DOMU amd64
Architecture: x86_64
Machine: amd64
>Description:
Created a Xen VM and booted a -current amd64 kernel. The VM has a 2GB
root disk, 2GB swap device and an additional 32GB disk. All the
virtual disks are backed by LVM on the DOM0 host. On the additional
disk a (disklabel) partition - a - spanning the entire disk, sans 2048
blocks, was set aside for an LFS filesystem. The LFS was created with
# newfs_lfs -A /dev/rxbd2a
I then ran:
# mount /dev/xbd2a /mnt
# mkdir /mnt/tmp && chmod 1777 /mnt/tmp
# mkdir /mnt/tmp/root
# tar --no-acls --one-file-system --no-xattrs --no-fflags -cf - -C / . | tar -xpf - -C /mnt/tmp/root
After a while, the following messages were displayed on the console:
[ 1689.8409231] panic: kernel diagnostic assertion "uvm_page_owner_locked_p(pg, false)" failed: file "/build/current/src/sys/uvm/uvm_page.c", line 1859
[ 1689.8409231] cpu1: Begin traceback...
[ 1689.8409231] vpanic() at netbsd:vpanic+0x14a
[ 1689.8409231] kern_assert() at netbsd:kern_assert+0x4b
[ 1689.8409231] uvm_pageactivate() at netbsd:uvm_pageactivate+0x96
[ 1689.8409231] lfs_gop_write() at netbsd:lfs_gop_write+0x577
[ 1689.8409231] genfs_do_putpages() at netbsd:genfs_do_putpages+0x8b7
[ 1689.8409231] lfs_putpages() at netbsd:lfs_putpages+0x8b1
[ 1689.8409231] VOP_PUTPAGES() at netbsd:VOP_PUTPAGES+0x5f
[ 1689.8409231] lfs_writefile() at netbsd:lfs_writefile+0x170
[ 1689.8409231] lfs_writevnodes() at netbsd:lfs_writevnodes+0xe1
[ 1689.8409231] lfs_segwrite() at netbsd:lfs_segwrite+0x90
[ 1689.8409231] lfs_flush_fs() at netbsd:lfs_flush_fs+0x9b
[ 1689.8409231] lfs_flush() at netbsd:lfs_flush+0x197
[ 1689.8409231] lfs_check() at netbsd:lfs_check+0x5c2
[ 1689.8409231] lfs_write() at netbsd:lfs_write+0x135
[ 1689.8409231] VOP_WRITE() at netbsd:VOP_WRITE+0x59
[ 1689.8409231] vn_write() at netbsd:vn_write+0xe0
[ 1689.8409231] dofilewrite() at netbsd:dofilewrite+0x7a
[ 1689.8409231] sys_write() at netbsd:sys_write+0x49
[ 1689.8409231] syscall() at netbsd:syscall+0x9c
[ 1689.8409231] --- syscall (number 4) ---
[ 1689.8409231] netbsd:syscall+0x9c:
[ 1689.8409231] cpu1: End traceback...
[ 1689.8409231] dumping to dev 142,17 (offset=4194303, size=0): not possible
[ 1689.8409231] rebooting...
It seems reproducable.
Some additional information:
# dumplfs /dev/rxbd2a
Master LFS32 superblock at 0x8:
magic 0x70162 version 0x2 size 33554432
ssize 194560 dsize 30198900 bsize 8192
fsize 1024 frag 8 minfree 10
inopb 8 ifpb 409 nindir 2048
nseg 176602 sepb 341 cleansz 1
segtabsz 518 segmask 0x0 segshift 0
bmask 0x1fff bshift 13 ffmask 0x3FF
ffshift 10 fbmask 0x7 fbshift 3
sushift 0 fsbtodb 1 cksum 0x2b1d
nclean 56016 dmeta 135658 minfreeseg 17660
roll_id 0x3dafe16c interleave 0 sumsize 1024
seg0addr 0 maxfilesize 0x400801018000
Superblock disk addresses:
0x8 0x333308 0x666610 0x999918 0xcccc20 0xffff28
0x1333230 0x1666538 0x1999840 0x1cccb48
Checkpoint Info
freehd 4 idaddr 0x19fe19b
uinodes 1 bfree 7891579 avail 8965414
nfiles 46275 lastseg 0x19fe092 nextseg 0x19fe20e
curseg 0x19fe150 offset 0x19fe1b4 serial 143745
tstamp Mon Aug 16 18:07:14 2021
32-bit only derived or constant fields
ifile 1
IFILE inode
mode o100600 nlink 1 uid 0 gid 0 size 5185536
atime Thu Jan 1 01:00:00 1970
mtime Mon Aug 16 18:07:14 2021
ctime Mon Aug 16 17:42:56 2021
inum 1
Direct Addresses
0x19fe151 0x19fe171 0xbeb9ce 0xbeb9d6 0xbeb9de 0xbeb9e6
0xbeb9ee 0xbeb9f6 0xbeb9fe 0xbeba06 0xbeba0e 0xbeba16
Indirect Addresses
0x19fe1ac 0x0 0x0
IFILE contents
free_head 4
free_tail 46625
clean 56016 dirty 120586
bfree 7891583 avail 8965482
SEGMENT 0 (Disk Address 0x0)
Disklabel at 0x0
Superblock at 0x8
Segment Summary Info at 0x10
next 0xbe nfinfo 2 ninos 2 flags ---R
sumsum 0xb9d7 datasum 0x5534 create Thu Jan 1 01:00:00 1970
roll_id 3dafe16c serial 1
Inode addresses: 0x12 {2v1, 1v1}
FINFO for inode: 2 version 1 nblocks 1 lastlength 1024
0
FINFO for inode: 1 version 1 nblocks 21 lastlength 8192
0 1 501 502 503 504 505 506
507 508 509 510 511 512 513 514
515 516 517 518 519
[ ... ]
# dmesg -t
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
2018, 2019, 2020, 2021 The NetBSD Foundation, Inc. All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
NetBSD 9.99.88 (XEN3_DOMU) #5: Tue Aug 10 14:57:02 CEST 2021
jarle@nbuilder.internal.tekno.greipsland.no:/build/current/amd64/obj/sys/arch/amd64/compile/XEN3_DOMU
total memory = 2048 MB
avail memory = 1968 MB
timecounter: Timecounters tick every 10.000 msec
Kernelized RAIDframe activated
mainbus0 (root)
hypervisor0 at mainbus0: Xen version 4.11.3nb1
hypervisor0: features: mmu_pt_update_preserve_ad highmem_assist gnttab_map_avail_bits
VIRQ_DEBUG interrupt using event channel 3
vcpu0 at hypervisor0
vcpu0: Intel(R) Xeon(R) CPU E5530 @ 2.40GHz, id 0x106a5
vcpu0: node 0, package 0, core 0, smt 0
vcpu1 at hypervisor0
vcpu1: Intel(R) Xeon(R) CPU E5530 @ 2.40GHz, id 0x106a5
vcpu1: node 0, package 0, core 0, smt 0
xenbus0 at hypervisor0: Xen Virtual Bus Interface
xencons0 at hypervisor0: Xen Virtual Console Driver
xencons0: console major 143, unit 0
xencons0: using event channel 2
entropy: WARNING: extracting entropy too early
timecounter: Timecounter "xen_system_time" frequency 1000000000 Hz quality 10000
Xen vcpu0 clock: using event channel 5
timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
Xen vcpu1 clock: using event channel 7
xenbus0: using event channel 1
xenbus0: autoconfiguration error: can't get state for device/suspend/event-channel (2)
IPsec: Initialized Security Association Processing.
xbd0 at xenbus0 id 0: Xen Virtual Block Device Interface
xbd0: using event channel 8
aes: Intel SSSE3 vpaes
chacha: x86 SSE2 ChaCha
adiantum: self-test passed
aes_ccm: self-test passed
blake2s: self-test passed
xbd1 at xenbus0 id 1: Xen Virtual Block Device Interface
xbd1: using event channel 9
xbd0: 2048 MB, 512 bytes/sect x 4194304 sectors
xbd0: backend features 0x1<CACHE-FLUSH>
xbd2 at xenbus0 id 2: Xen Virtual Block Device Interface
xbd2: using event channel 10
xennet0 at xenbus0 id 0: Xen Virtual Network Interface
xennet0: backend features 0x4<RX-COPY>
xennet0: MAC address aa:00:00:d1:00:0a
xennet0: using event channel 11
balloon0 at xenbus0 id 0: Xen Balloon driver
balloon0: current reservation: 2097152 KiB
xbd1: 2048 MB, 512 bytes/sect x 4194304 sectors
xbd1: backend features 0x1<CACHE-FLUSH>
xbd2: 32768 MB, 512 bytes/sect x 67108864 sectors
xbd2: backend features 0x1<CACHE-FLUSH>
cgd: self-test aes-xts-256
cgd: self-test aes-xts-512
cgd: self-test aes-cbc-128
cgd: self-test aes-cbc-256
cgd: self-test 3des-cbc-192
cgd: self-test blowfish-cbc-448
cgd: self-test aes-cbc-128 (encblkno8)
cgd: self-tests passed
xenbus0: autoconfiguration error: can't get state for device/suspend/event-channel (2)
balloon0: current reservation: 524288 pages => target: 524288 pages
xenbus0: autoconfiguration error: can't get state for device/suspend/event-channel (2)
WARNING: 3 errors while detecting hardware; check system log.
boot device: xbd0
root on xbd0a dumps on xbd0b
>How-To-Repeat:
>Fix:
>Unformatted:
(Contact us)
$NetBSD: query-full-pr,v 1.46 2020/01/03 16:35:01 leot Exp $
$NetBSD: gnats_config.sh,v 1.9 2014/08/02 14:16:04 spz Exp $
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The NetBSD Foundation, Inc. ALL RIGHTS RESERVED.