panic: Suspending fresh file system failed

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syzbot

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Oct 15, 2020, 4:47:20 PM10/15/20

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Hello,

syzbot found the following issue on:

HEAD commit: 7e420f83 Add tests for process_xmm_to_s87() and process_s8..
git tree: netbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=17f8367f900000
kernel config: https://syzkaller.appspot.com/x/.config?x=fab579639ba4bf0a
dashboard link: https://syzkaller.appspot.com/bug?extid=0cfb253b382a9836450a
compiler: g++ (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+0cfb25...@syzkaller.appspotmail.com

I;�Z�d8 cz� ��o��+8�N�W��y�!�ly�_��Ҥ\�@�9T��^�]ug ̋i_�$b�!�f�G\է� �WNA3�� }�/� � ��A�� ɛ޸�-��0 O��a �ah ��wfv�,��p �n�zW}�&�`��i �{�]�:��j�Cj�X�w"I��hև D�E*�� 3� �Vne ��"bxQ�(� �ǵQ � ' 7Q��1�B�W![��z��T�5=z��ɫ �/J��&Ŋ�r�А�V �&�V��8�� 8 F�ad8�[ 266.7317403] panic: Suspending fresh file system failed
[ 266.7417458] cpu1: Begin traceback...
[ 266.8017027] vpanic() at netbsd:vpanic+0x265 sys/kern/subr_prf.c:290
[ 266.9217032] snprintf() at netbsd:snprintf
[ 267.0417042] mount_domount() at netbsd:mount_domount+0xa94 sys/kern/vfs_mount.c:838
[ 267.1717003] do_sys_mount() at netbsd:do_sys_mount+0x6ec sys/kern/vfs_syscalls.c:552
[ 267.2917002] sys___mount50() at netbsd:sys___mount50+0x8f sys/kern/vfs_syscalls.c:473
[ 267.4117007] sys___syscall() at netbsd:sys___syscall+0xff sy_call sys/sys/syscallvar.h:65 [inline]
[ 267.4117007] sys___syscall() at netbsd:sys___syscall+0xff sys/kern/sys_syscall.c:77
[ 267.5417028] syscall() at netbsd:syscall+0x259 sy_call sys/sys/syscallvar.h:65 [inline]
[ 267.5417028] syscall() at netbsd:syscall+0x259 sy_invoke sys/sys/syscallvar.h:94 [inline]
[ 267.5417028] syscall() at netbsd:syscall+0x259 sys/arch/x86/x86/syscall.c:138
[ 267.5717466] --- syscall (number 198) ---
[ 267.6117034] netbsd:syscall+0x259:
[ 267.6117034] cpu1: End traceback...
[ 267.6117034] fatal breakpoint trap in supervisor mode
[ 267.6217008] trap type 1 code 0 rip 0xffffffff80220a1d cs 0x8 rflags 0x282 cr2 0x727804c07ea0 ilevel 0 rsp 0xffff9e018fc04950
[ 267.6316981] curlwp 0xffff9e001378a500 pid 4156.1768 lowest kstack 0xffff9e018fbfd2c0
Stopped in pid 4156.1768 (syz-executor.3) at netbsd:breakpoint+0x5: leave
?
breakpoint() at netbsd:breakpoint+0x5
db_panic() at netbsd:db_panic+0x105 sys/ddb/db_panic.c:67
vpanic() at netbsd:vpanic+0x265 sys/kern/subr_prf.c:290
snprintf() at netbsd:snprintf
mount_domount() at netbsd:mount_domount+0xa94 sys/kern/vfs_mount.c:838
do_sys_mount() at netbsd:do_sys_mount+0x6ec sys/kern/vfs_syscalls.c:552
sys___mount50() at netbsd:sys___mount50+0x8f sys/kern/vfs_syscalls.c:473
sys___syscall() at netbsd:sys___syscall+0xff sy_call sys/sys/syscallvar.h:65 [inline]
sys___syscall() at netbsd:sys___syscall+0xff sys/kern/sys_syscall.c:77
syscall() at netbsd:syscall+0x259 sy_call sys/sys/syscallvar.h:65 [inline]
syscall() at netbsd:syscall+0x259 sy_invoke sys/sys/syscallvar.h:94 [inline]
syscall() at netbsd:syscall+0x259 sys/arch/x86/x86/syscall.c:138
--- syscall (number 198) ---
netbsd:syscall+0x259:
Panic string: Suspending fresh file system failed
PID LID S CPU FLAGS STRUCT LWP * NAME WAIT
6369 6369 2 0 40000 ffff9e0012d61200 syz-executor.5
1778 1778 3 0 40000 ffff9e0014423080 syz-executor.2 tstile
4185 3808 3 0 0 ffff9e001436fb40 syz-executor.0 tstile
4185 1775 2 1 40000 ffff9e001392b9c0 syz-executor.0
4185 4185 2 0 10040040 ffff9e0012cc0b40 syz-executor.0
2264 2263 3 0 100000 ffff9e0012d42180 syz-executor.1 tstile
2264 2264 3 0 10040000 ffff9e00138f4900 syz-executor.1 lwpwait
4156 >1768 7 1 100000 ffff9e001378a500 syz-executor.3
4156 1782 3 1 80 ffff9e001392b580 syz-executor.3 parked
4156 4156 2 1 10040000 ffff9e0012aaa740 syz-executor.3
2786 1418 3 0 100000 ffff9e00144188c0 syz-executor.4 tstile
2786 1788 3 0 100000 ffff9e0012cd1740 syz-executor.4 tstile
2786 2786 3 0 10040000 ffff9e00138be2c0 syz-executor.4 lwpwait
4160 4160 3 0 80 ffff9e0012d35140 syz-executor.1 parked
1058 1058 3 0 80 ffff9e0012c7dac0 syz-executor.1 parked
3019 3019 3 0 80 ffff9e00137f8100 syz-executor.4 parked
3140 3140 3 0 80 ffff9e0012dd0340 syz-executor.0 parked
3264 3264 3 0 80 ffff9e0012d8ab40 syz-executor.3 parked
2998 2998 3 0 80 ffff9e0012d7b6c0 syz-executor.4 parked
2490 2490 3 0 80 ffff9e0012d359c0 syz-executor.0 parked
2777 2777 3 0 80 ffff9e0012acfbc0 syz-executor.3 parked
2860 2860 3 1 80 ffff9e0012c66200 syz-executor.0 parked
2898 2898 3 0 80 ffff9e0012d425c0 syz-executor.4 parked
3023 3023 3 0 80 ffff9e0013909540 syz-executor.3 parked
2748 2748 3 1 80 ffff9e00143adb80 syz-executor.3 parked
1956 1956 3 1 80 ffff9e00137f8980 syz-executor.3 parked
2257 2257 3 0 80 ffff9e0012dd0bc0 syz-executor.3 parked
2371 2371 3 0 80 ffff9e0012c239c0 syz-executor.3 parked
1977 1977 3 1 80 ffff9e0012b108c0 syz-executor.3 parked
2249 2249 3 1 80 ffff9e00127c6300 syz-executor.3 parked
2144 2144 3 0 80 ffff9e0012bd6940 syz-executor.3 parked
1185 1185 3 0 40 ffff9e0014228640 syz-executor.5 tstile
1127 1127 3 0 40 ffff9e0014228200 syz-executor.4 tstile
1074 1074 3 0 40 ffff9e00141f7a40 syz-executor.3 tstile
1072 1072 3 0 40 ffff9e00141f7600 syz-executor.2 tstile
1064 1064 3 0 40 ffff9e00141f71c0 syz-executor.1 tstile
1151 1151 3 0 40 ffff9e00141ce5c0 syz-executor.0 tstile
1079 419 3 1 80 ffff9e00141cea00 syz-fuzzer parked
1079 1190 2 0 40 ffff9e0012c531c0 syz-fuzzer
1079 1251 3 1 80 ffff9e00141ce180 syz-fuzzer parked
1079 1085 3 0 80 ffff9e00138df780 syz-fuzzer parked
1079 1069 3 1 c0 ffff9e00138ea8c0 syz-fuzzer parked
1079 1077 3 0 80 ffff9e00138ea040 syz-fuzzer parked
1079 1109 3 0 c0 ffff9e0013901940 syz-fuzzer parked
1079 1086 3 0 c0 ffff9e0012bf7540 syz-fuzzer parked
1079 >1066 7 0 40 ffff9e0012bd6500 syz-fuzzer
1079 1079 2 0 40 ffff9e0012c3f180 syz-fuzzer
1080 1080 3 1 80 ffff9e0012c3fa00 sshd select
1065 1065 3 1 80 ffff9e0012aaab80 getty nanoslp
1107 1107 3 0 80 ffff9e00129e6640 getty nanoslp
1089 1089 3 0 80 ffff9e0012bd60c0 getty nanoslp
1252 1252 3 1 c0 ffff9e001382b5c0 getty ttyraw
991 991 3 1 80 ffff9e00138766c0 sshd select
1122 1122 3 0 80 ffff9e00138079c0 powerd kqueue
686 686 3 0 80 ffff9e00138dfbc0 syslogd kqueue
600 600 3 1 80 ffff9e0012cee780 dhcpcd poll
596 596 3 1 80 ffff9e0012d28980 dhcpcd poll
435 435 3 0 80 ffff9e0012cfc8c0 dhcpcd poll
584 584 3 1 80 ffff9e0012cee340 dhcpcd poll
350 350 3 1 80 ffff9e0012e0b4c0 dhcpcd poll
349 349 3 0 80 ffff9e0012e0b080 dhcpcd poll
348 348 3 0 80 ffff9e0012de98c0 dhcpcd poll
1 1 3 0 80 ffff9e00128c2980 init wait
0 2733 5 0 200 ffff9e0012bb5080 (zombie)
0 796 3 0 200 ffff9e00129e6a80 physiod physiod
0 162 3 0 200 ffff9e00129fcac0 pooldrain pooldrain
0 167 2 1 240 ffff9e00129fc680 ioflush
0 165 3 1 200 ffff9e00129fc240 pgdaemon pgdaemon
0 160 3 0 200 ffff9e00129e6200 usb7 usbevt
0 31 3 1 200 ffff9e001299aa40 usb6 usbevt
0 63 3 1 200 ffff9e001299a600 usb5 usbevt
0 126 3 1 200 ffff9e001299a1c0 usb4 usbevt
0 125 3 1 200 ffff9e0012948a00 usb3 usbevt
0 124 3 1 200 ffff9e00129485c0 usb2 usbevt
0 123 3 1 200 ffff9e0012948180 usb1 usbevt
0 122 3 0 200 ffff9e00128d89c0 usb0 usbevt
0 121 3 1 200 ffff9e00128d8580 usbtask-dr usbtsk
0 120 3 0 200 ffff9e000fe34ac0 usbtask-hc usbtsk
0 119 3 1 200 ffff9e00128d8140 npfgc0 npfgcw
0 118 3 1 200 ffff9e00128c2540 rt_free rt_free
0 117 3 1 200 ffff9e00128c2100 unpgc unpgc
0 116 2 1 200 ffff9e00127f8940 key_timehandler
0 115 3 1 200 ffff9e00127f8500 icmp6_wqinput/1 icmp6_wqinput
0 114 3 0 200 ffff9e00127f80c0 icmp6_wqinput/0 icmp6_wqinput
0 113 2 1 200 ffff9e00127ed900 nd6_timer
0 112 3 1 200 ffff9e00127ed4c0 carp6_wqinput/1 carp6_wqinput
0 111 3 0 200 ffff9e00127ed080 carp6_wqinput/0 carp6_wqinput
0 110 3 1 200 ffff9e00127d98c0 carp_wqinput/1 carp_wqinput
0 109 3 0 200 ffff9e00127d9480 carp_wqinput/0 carp_wqinput
0 108 3 1 200 ffff9e00127d9040 icmp_wqinput/1 icmp_wqinput
0 107 3 0 200 ffff9e00127c8bc0 icmp_wqinput/0 icmp_wqinput
0 106 2 1 200 ffff9e00127c8780 rt_timer
0 105 3 1 200 ffff9e00127c8340 vmem_rehash vmem_rehash
0 104 3 1 200 ffff9e00127c6740 entbutler entropy
0 30 3 1 200 ffff9e001213a6c0 vioif0_txrx/1 vioif0_txrx
0 29 3 0 200 ffff9e001213a280 vioif0_txrx/0 vioif0_txrx
0 27 3 0 200 ffff9e000fe34680 scsibus0 sccomp
0 26 3 0 200 ffff9e000fe34240 pms0 pmsreset
0 25 3 1 200 ffff9e000fd89a80 xcall/1 xcall
0 24 1 1 200 ffff9e000fd89640 softser/1
0 23 1 1 200 ffff9e000fd89200 softclk/1
0 22 1 1 200 ffff9e000fd87a40 softbio/1
0 21 1 1 200 ffff9e000fd87600 softnet/1
0 20 1 1 201 ffff9e000fd871c0 idle/1
0 19 3 0 200 ffff9e000e7f8a00 lnxpwrwq lnxpwrwq
0 18 3 0 200 ffff9e000e7f85c0 lnxlngwq lnxlngwq
0 17 3 0 200 ffff9e000e7f8180 lnxsyswq lnxsyswq
0 16 3 0 200 ffff9e000e7f09c0 lnxrcugc lnxrcugc
0 15 3 0 200 ffff9e000e7f0580 sysmon smtaskq
0 14 3 0 200 ffff9e000e7f0140 pmfsuspend pmfsuspend
0 13 3 0 200 ffff9e000e7ec980 pmfevent pmfevent
0 12 3 0 200 ffff9e000e7ec540 sopendfree sopendfr
0 11 3 1 200 ffff9e000e7ec100 iflnkst iflnkst
0 10 3 0 200 ffff9e000e7e0940 nfssilly nfssilly
0 9 3 0 200 ffff9e000e7e0500 vdrain vdrain
0 8 3 0 200 ffff9e000e7e00c0 modunload mod_unld
0 7 3 0 200 ffff9e000e7d3900 xcall/0 xcall
0 6 1 0 200 ffff9e000e7d34c0 softser/0
0 5 1 0 200 ffff9e000e7d3080 softclk/0
0 4 1 0 200 ffff9e000e7d18c0 softbio/0
0 3 1 0 200 ffff9e000e7d1480 softnet/0
0 2 1 0 201 ffff9e000e7d1040 idle/0
0 0 2 1 240 ffffffff82eed040 swapper
[Locks tracked through LWPs]

****** LWP 6369.6369 (syz-executor.5) @ 0xffff9e0012d61200, l_stat=2

*** Locks held:

* Lock 0 (initialized at amap_ctor)
lock address : 0xffff9e0014233d00 type : sleep/adaptive
initialized : 0xffffffff81825b3b
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffff9e0012d61200 last held: 0xffff9e0012d61200
last locked* : 0xffffffff8183643d unlocked : 0xffffffff81834006
owner/count : 000000000000000000 flags : 000000000000000000
Turnstile: no active turnstile for this lock.

* Lock 1 (initialized at pmap_ctor)
lock address : 0xffff9e0013819580 type : sleep/adaptive
initialized : 0xffffffff808d3c24
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffff9e0012d61200 last held: 0xffff9e0012d61200
last locked* : 0xffffffff808d58b2 unlocked : 0xffffffff808d61b8
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 1778.1778 (syz-executor.2) @ 0xffff9e0014423080, l_stat=3

*** Locks held:

* Lock 0 (initialized at amap_ctor)
lock address : 0xffff9e00141d3fc0 type : sleep/adaptive
initialized : 0xffffffff81825b3b
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffff9e0014423080 last held: 0xffff9e0014423080
last locked* : 0xffffffff8183643d unlocked : 0xffffffff81834006
owner/count : 000000000000000000 flags : 000000000000000000
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 4185.3808 (syz-executor.0) @ 0xffff9e001436fb40, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at vcache_alloc)
lock address : 0xffff9e00129eaa00 type : sleep/adaptive
initialized : 0xffffffff81a54060
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 1
relevant cpu : 0 last held: 1
relevant lwp : 0xffff9e001436fb40 last held: 0xffff9e001392b9c0
last locked* : 0xffffffff81a86e00 unlocked : 0xffffffff81a86e62
owner/count : 0xffff9e001392b9c0 flags : 0x0000000000000007
Turnstile:
=> 0 waiting readers:
=> 1 waiting writers: 0xffff9e001436fb40

****** LWP 4185.1775 (syz-executor.0) @ 0xffff9e001392b9c0, l_stat=2

*** Locks held:

* Lock 0 (initialized at vcache_alloc)
lock address : 0xffff9e00129eaa00 type : sleep/adaptive
initialized : 0xffffffff81a54060
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 1
relevant cpu : 1 last held: 1
relevant lwp : 0xffff9e001392b9c0 last held: 0xffff9e001392b9c0
last locked* : 0xffffffff81a86e00 unlocked : 0xffffffff81a86e62
owner/count : 0xffff9e001392b9c0 flags : 0x0000000000000007
Turnstile:
=> 0 waiting readers:
=> 1 waiting writers: 0xffff9e001436fb40

* Lock 1 (initialized at genfs_node_init)
lock address : 0xffff9e00143b5c50 type : sleep/adaptive
initialized : 0xffffffff81a86fcc
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 1
relevant lwp : 0xffff9e001392b9c0 last held: 0xffff9e001392b9c0
last locked* : 0xffffffff81789300 unlocked : 0xffffffff81a7c0c4
owner/count : 0xffff9e001392b9c0 flags : 0x0000000000000004
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 2264.2264 (syz-executor.1) @ 0xffff9e00138f4900, l_stat=3

*** Locks held:

* Lock 0 (initialized at amap_ctor)
lock address : 0xffff9e00141d3ac0 type : sleep/adaptive
initialized : 0xffffffff81825b3b
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffff9e00138f4900 last held: 0xffff9e00138f4900
last locked* : 0xffffffff8183643d unlocked : 0xffffffff81834ecf
owner/count : 000000000000000000 flags : 000000000000000000
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 4156.1768 (syz-executor.3) @ 0xffff9e001378a500, l_stat=7

*** Locks held:

* Lock 0 (initialized at vfs_mountalloc)
lock address : 0xffff9e0014427800 type : sleep/adaptive
initialized : 0xffffffff81a3516f
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 0
relevant lwp : 0xffff9e001378a500 last held: 0xffff9e001378a500
last locked* : 0xffffffff81a38067 unlocked : 000000000000000000
owner field : 0xffff9e001378a500 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 4156.4156 (syz-executor.3) @ 0xffff9e0012aaa740, l_stat=2

*** Locks held:

* Lock 0 (initialized at fork1)
lock address : 0xffff9e0012d18c40 type : sleep/adaptive
initialized : 0xffffffff818c292f
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 1
relevant lwp : 0xffff9e0012aaa740 last held: 0xffff9e0012aaa740
last locked* : 0xffffffff818bf1bc unlocked : 0xffffffff818bd157
owner field : 0xffff9e0012aaa740 wait/spin: 1/0
Turnstile:
=> 0 waiting readers:
=> 1 waiting writers: 0xffff9e00141f7a40

*** Locks wanted: none

****** LWP 2786.1788 (syz-executor.4) @ 0xffff9e0012cd1740, l_stat=3

*** Locks held:

* Lock 0 (initialized at vcache_alloc)
lock address : 0xffff9e0012cad780 type : sleep/adaptive
initialized : 0xffffffff81a54060
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffff9e0012cd1740 last held: 0xffff9e0012cd1740
last locked* : 0xffffffff81a86e00 unlocked : 0xffffffff81a86e62
owner/count : 000000000000000000 flags : 000000000000000000
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 1072.1072 (syz-executor.2) @ 0xffff9e00141f7600, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at procinit)
lock address : 0xffffffff82ff49c0 type : sleep/adaptive
initialized : 0xffffffff818e9735
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 1
relevant cpu : 0 last held: 0
relevant lwp : 0xffff9e00141f7600 last held: 000000000000000000
last locked : 0xffffffff818bf319 unlocked*: 0xffffffff818c0050
owner field : 0xffff9e00141f7a40 wait/spin: 1/0
Turnstile:
=> 0 waiting readers:
=> 9 waiting writers: 0xffff9e00141f71c0 0xffff9e00141ce5c0 0xffff9e0014228200 0xffff9e00141f7600 0xffff9e0014228640 0xffff9e0012d42180 0xffff9e0014423080 0xffff9e00144188c0 0xffff9e0012cd1740

****** LWP 596.596 (dhcpcd) @ 0xffff9e0012d28980, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff82ff48c0 type : sleep/adaptive
initialized : 0xffffffff818dbbc1
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 0
relevant lwp : 0xffff9e0012d28980 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 435.435 (dhcpcd) @ 0xffff9e0012cfc8c0, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff82ff48c0 type : sleep/adaptive
initialized : 0xffffffff818dbbc1
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffff9e0012cfc8c0 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 349.349 (dhcpcd) @ 0xffff9e0012e0b080, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff82ff48c0 type : sleep/adaptive
initialized : 0xffffffff818dbbc1
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffff9e0012e0b080 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 348.348 (dhcpcd) @ 0xffff9e0012de98c0, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff82ff48c0 type : sleep/adaptive
initialized : 0xffffffff818dbbc1
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffff9e0012de98c0 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.11 (iflnkst) @ 0xffff9e000e7ec100, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff82ff48c0 type : sleep/adaptive
initialized : 0xffffffff818dbbc1
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 0
relevant lwp : 0xffff9e000e7ec100 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.5 (softclk/0) @ 0xffff9e000e7d3080, l_stat=1

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff82ff48c0 type : sleep/adaptive
initialized : 0xffffffff818dbbc1
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffff9e000e7d3080 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.4 (softbio/0) @ 0xffff9e000e7d18c0, l_stat=1

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at dkwedge_add)
lock address : 0xffff9e00128de638 type : spin
initialized : 0xffffffff81aa2d68
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 1
relevant cpu : 0 last held: 0
relevant lwp : 0xffff9e000e7d18c0 last held: 000000000000000000
last locked : 0xffffffff81aa0e40 unlocked*: 0xffffffff81aa0ec1
owner field : 0x0000000000000600 wait/spin: 0/1

[Locks tracked through CPUs]

******* Locks held on cpu0:

* Lock 0 (initialized at main)
lock address : 0xffffffff82ff47c0 type : spin
initialized : 0xffffffff81c87094
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffff9e0012bd6500 last held: 0xffff9e0012cd1740
last locked* : 0xffffffff802687ff unlocked : 0xffffffff80268815
curcpu holds : 0 wanted by: 000000000000000000

PAGE FLAG PQ UOBJECT UANON
0xffff9e0000017180 0041 00000000 0x0 0x0
0xffff9e0000017200 0001 00000000 0x0 0x0
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0xffff9e0000025200 0001 00000000 0x0 0x0
0xffff9e0000025280 0001 00000000 0x0 0x0
0xffff9e0000025300 0001 00000000 0x0 0x0
0xffff9e0000025380 0001 00000000 0x0 0x0
0xffff9e0000025400 0001 00000000 0x0 0x0
0xffff9e0000025480 0001 00000000 0x0 0x0
0xffff9e0000025500 0001 00000000 0x0 0x0
0xffff9e0000025580 0001 00000000 0x0 0x0
0xffff9e0000025600 0001 00000000 0x0 0x0
0xffff9e0000025680 0001 00000000 0x0 0x0
0xffff9e0000025700 0001 00000000 0x0 0x0
0xffff9e0000025780 0001 00000000 0x0 0x0
0xffff9e0000025800 0001 00000000 0x0 0x0
0xffff9e0000025880 0001 00000000 0x0 0x0
0xffff9e0000025900 0001 00000000 0x0 0x0
0xffff9e0000025980 0001 00000000 0x0 0x0
0xffff9e0000025a00 0001 00000000 0x0 0x0
0xffff9e0000025a80 0001 00000000 0x0 0x0
0xffff9e0000025b00 0001 00000000 0x0 0x0
0xffff9e0000025b80 0001 00000000 0x0 0x0
0xffff9e0000025c00 0001 00000000 0x0 0x0
0xffff9e0000025c80 0001 00000000 0x0 0x0
0xffff9e0000025d00 0001 00000000 0x0 0x0
0xffff9e0000025d80 0001 00000000 0x0 0x0
0xffff9e0000025e00 0001 00000000 0x0 0x0
0xffff9e0000025e80 0001 00000000 0x0 0x0
0xffff9e0000025f00 0001 00000000 0x0 0x0
0xffff9e0000025f80 0001 00000000 0x0 0x0
0xffff9e0000026000 0001 00000000 0x0 0x0
0xffff9e0000026080 0001 00000000 0x0 0x0
0xffff9e0000026100 0001 00000000 0x0 0x0
0xffff9e0000026180 0001 00000000 0x0 0x0
0xffff9e0000026200 0001 00000000 0x0 0x0
0xffff9e0000026280 0001 00000000 0x0 0x0
0xffff9e0000026300 0001 00000000 0x0 0x0
0xffff9e0000026380 0001 00000000 0x0 0x0
0xffff9e0000026400 0001 00000000 0x0 0x0
0xffff9e0000026480 0001 00000000 0x0 0x0
0xffff9e0000026500 0001 00000000 0x0 0x0
0xffff9e0000026580 0001 00000000 0x0 0x0
0xffff9e0000026600 0001 00000000 0x0 0x0
0xffff9e0000026680 0001 00000000 0x0 0x0
0xffff9e0000026700 0001 00000000 0x0 0x0
0xffff9e0000026780 0001 00000000 0x0 0x0
0xffff9e0000026800 0001 00000000 0x0 0x0
0xffff9e0000026880 0001 00000000 0x0 0x0
0xffff9e0000026900 0001 00000000 0x0 0x0
0xffff9e0000026980 0001 00000000 0x0 0x0
0xffff9e0000026a00 0001 00000000 0x0 0x0
0xffff9e0000026a80 0001 00000000 0x0 0x0
0xffff9e0000026b00 0001 00000000 0x0 0x0
0xffff9e0000026b80 0001 00000000 0x0 0x0
0xffff9e0000026c00 0001 00000000 0x0 0x0
0xffff9e0000026c80 0001 00000000 0x0 0x0
0xffff9e0000026d00 0001 00000000 0x0 0x0
0xffff9e0000026d80 0001 00000000 0x0 0x0
0xffff9e0000026e00 0001 00000000 0x0 0x0
0xffff9e0000026e80 0001 00000000 0x0 0x0
0xffff9e0000026f00 0001 00000000 0x0 0x0
0xffff9e0000026f80 0001 00000000 0x0 0x0
0xffff9e0000027000 0001 00000000 0x0 0x0
0xffff9e0000027080 0001 00000000 0x0 0x0
0xffff9e0000027100 0001 00000000 0x0 0x0
0xffff9e0000027180 0001 00000000 0x0 0x0
0xffff9e0000027200 0001 00000000 0x0 0x0
0xffff9e0000027280 0001 00000000 0x0 0x0
0xffff9e0000027300 0001 00000000 0x0 0x0
0xffff9e0000027380 0001 00000000 0x0 0x0
0xffff9e0000027400 0001 00000000 0x0 0x0
0xffff9e0000027480 0001 00000000 0x0 0x0
0xffff9e0000027500 0001 00000000 0x0 0x0
0xffff9e0000027580 0001 00000000 0x0 0x0
0xffff9e0000027600 0001 00000000 0x0 0x0
0xffff9e0000027680 0001 00000000 0x0 0x0
0xffff9e0000027700 0001 00000000 0x0 0x0
0xffff9e0000027780 0001 00000000 0x0 0x0
0xffff9e0000027800 0001 00000000 0x0 0x0
0xffff9e0000027880 0001 00000000 0x0 0x0
0xffff9e0000027900 0001 00000000 0x0 0x0
0xffff9e0000027980 0001 00000000 0x0 0x0
0xffff9e0000027a00 0001 00000000 0x0 0x0
0xffff9e0000027a80 0001 00000000 0x0 0x0
0xffff9e0000027b00 0001 00000000 0x0 0x0
0xffff9e0000027b80 0001 00000000 0x0 0x0
0xffff9e0000027c00 0001 00000000 0x0 0x0
0xffff9e0000027c80 0001 00000000 0x0 0x0
0xffff9e0000027d00 0001 00000000 0x0 0x0
0xffff9e0000027d80 0001 00000000 0x0 0x0
0xffff9e0000027e00 0001 00000000 0x0 0x0
0xffff9e0000027e80 0001 00000000 0x0 0x0
0xffff9e0000027f00 0001 00000000 0x0 0x0
0xffff9e0000027f80 0001 00000000 0x0 0x0
0xffff9e0000028000 0001 00000000 0x0 0x0
0xffff9e0000028080 0001 00000000 0x0 0x0
0xffff9e0000028100 0001 00000000 0x0 0x0
0xffff9e0000028180 0001 00000000 0x0 0x0
0xffff9e0000028200 0001 00000000 0x0 0x0
0xffff9e0000028280 0001 00000000 0x0 0x0
0xffff9e0000028300 0001 00000000 0x0 0x0
0xffff9e0000028380 0001 00000000 0x0 0x0
0xffff9e0000028400 0001 00000000 0x0 0x0
0xffff9e0000028480 0001 00000000 0x0 0x0
0xffff9e0000028500 0001 00000000 0x0 0x0
0xffff9e0000028580 0001 00000000 0x0 0x0
0xffff9e0000028600 0001 00000000 0x0 0x0
0xffff9e0000028680 0001 00000000 0x0 0x0
0xffff9e0000028700 0001 00000000 0x0 0x0
0xffff9e0000028780 0001 00000000 0x0 0x0
0xffff9e0000028800 0001 00000000 0x0 0x0
0xffff9e0000028880 0001 00000000 0x0 0x0
0xffff9e0000028900 0001 00000000 0x0 0x0
0xffff9e0000028980 0001 00000000 0x0 0x0
0xffff9e0000028a00 0001 00000000 0x0 0x0
0xffff9e0000028a80 0001 00000000 0x0 0x0
0xffff9e0000028b00 0001 00000000 0x0 0x0
0xffff9e0000028b80 0001 00000000 0x0 0x0
0xffff9e0000028c00 0001 00000000 0x0 0x0
0xffff9e0000028c80 0001 00000000 0x0 0x0
0xffff9e0000028d00 0001 00000000 0x0 0x0
0xffff9e0000028d80 0001 00000000 0x0 0x0
0xffff9e0000028e00 0001 00000000 0x0 0x0
0xffff9e0000028e80 0001 00000000 0x0 0x0
0xffff9e0000028f00 0001 00000000 0x0 0x0
0xffff9e0000028f80 0001 00000000 0x0 0x0
0xffff9e0000029000 0001 00000000 0x0 0x0
0xffff9e0000029080 0001 00000000 0x0 0x0
0xffff9e0000029100 0001 00000000 0x0 0x0
0xffff9e0000029180 0001 00000000 0x0 0x0
0xffff9e0000029200 0001 00000000 0x0 0x0
0xffff9e0000029280 0001 00000000 0x0 0x0
0xffff9e0000029300 0001 00000000 0x0 0x0
0xffff9e0000029380 0001 00000000 0x0 0x0
0xffff9e0000029400 0001 00000000 0x0 0x0
0xfff

---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

syzbot

unread,

Oct 16, 2020, 6:18:21 PM10/16/20

to syzkaller-...@googlegroups.com

syzbot has found a reproducer for the following issue on:

HEAD commit: e9979d00 Fixes a problem that the attach function reporte..
git tree: netbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=15cae67f900000
kernel config: https://syzkaller.appspot.com/x/.config?x=1420f906d33d9f1f

dashboard link: https://syzkaller.appspot.com/bug?extid=0cfb253b382a9836450a
compiler: g++ (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609

syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13f4ce6f900000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+0cfb25...@syzkaller.appspotmail.com

[ 41.7073014] panic: Suspending fresh file system failed
[ 41.7073014] cpu1: Begin traceback...
[ 41.7372771] vpanic() at netbsd:vpanic+0x2cd sys/kern/subr_prf.c:290
[ 41.7972768] snprintf() at netbsd:snprintf
[ 41.8472775] mount_domount() at netbsd:mount_domount+0xd51 sys/kern/vfs_mount.c:838
[ 41.9072772] do_sys_mount() at netbsd:do_sys_mount+0x56c sys/kern/vfs_syscalls.c:552
[ 41.9672780] sys___mount50() at netbsd:sys___mount50+0x5d sys/kern/vfs_syscalls.c:473
[ 42.0272776] sys___syscall() at netbsd:sys___syscall+0x1cf sy_call sys/sys/syscallvar.h:66 [inline]
[ 42.0272776] sys___syscall() at netbsd:sys___syscall+0x1cf sys/kern/sys_syscall.c:77
[ 42.0872774] syscall() at netbsd:syscall+0x2d5 sy_call sys/sys/syscallvar.h:65 [inline]
[ 42.0872774] syscall() at netbsd:syscall+0x2d5 sy_invoke sys/sys/syscallvar.h:94 [inline]
[ 42.0872774] syscall() at netbsd:syscall+0x2d5 sys/arch/x86/x86/syscall.c:138
[ 42.0972775] --- syscall (number 198) ---
[ 42.1172766] netbsd:syscall+0x2d5:
[ 42.1172766] cpu1: End traceback...
[ 42.1272765] fatal breakpoint trap in supervisor mode
[ 42.1272765] trap type 1 code 0 rip 0xffffffff80221a85 cs 0x8 rflags 0x246 cr2 0x75a82cfa2320 ilevel 0 rsp 0xffff9000bf411c50
[ 42.1372749] curlwp 0xffffb2fe39d1ea80 pid 1206.1249 lowest kstack 0xffff9000bf40d2c0
Stopped in pid 1206.1249 (syz-executor.1) at netbsd:breakpoint+0x5: leave

?
breakpoint() at netbsd:breakpoint+0x5

db_panic() at netbsd:db_panic+0xec sys/ddb/db_panic.c:67
vpanic() at netbsd:vpanic+0x2cd sys/kern/subr_prf.c:290
snprintf() at netbsd:snprintf
mount_domount() at netbsd:mount_domount+0xd51 sys/kern/vfs_mount.c:838
do_sys_mount() at netbsd:do_sys_mount+0x56c sys/kern/vfs_syscalls.c:552
sys___mount50() at netbsd:sys___mount50+0x5d sys/kern/vfs_syscalls.c:473
sys___syscall() at netbsd:sys___syscall+0x1cf sy_call sys/sys/syscallvar.h:66 [inline]
sys___syscall() at netbsd:sys___syscall+0x1cf sys/kern/sys_syscall.c:77
syscall() at netbsd:syscall+0x2d5 sy_call sys/sys/syscallvar.h:65 [inline]
syscall() at netbsd:syscall+0x2d5 sy_invoke sys/sys/syscallvar.h:94 [inline]
syscall() at netbsd:syscall+0x2d5 sys/arch/x86/x86/syscall.c:138

--- syscall (number 198) ---

netbsd:syscall+0x2d5:

Panic string: Suspending fresh file system failed
PID LID S CPU FLAGS STRUCT LWP * NAME WAIT

422 1383 2 0 0 ffffb2fe3a26b680 syz-executor.4
422 1108 2 0 0 ffffb2fe3a26b240 syz-executor.4
422 422 2 0 10000000 ffffb2fe3a37b180 syz-executor.4
454 1375 2 0 0 ffffb2fe3acb8280 syz-executor.3
454 1321 3 0 80 ffffb2fe3a26bac0 syz-executor.3 parked
454 454 2 0 10000000 ffffb2fe3aca8140 syz-executor.3
458 1360 2 1 0 ffffb2fe3a22ca40 syz-executor.5
458 458 2 1 10000000 ffffb2fe3a37ba00 syz-executor.5
1106 1322 2 0 0 ffffb2fe3acb8b00 syz-executor.0
1106 1359 2 0 0 ffffb2fe3acb86c0 syz-executor.0
1106 1106 2 0 10000000 ffffb2fe3717f680 syz-executor.0
1206 >1249 7 1 100000 ffffb2fe39d1ea80 syz-executor.1
1206 1206 2 1 10000040 ffffb2fe3a22c1c0 syz-executor.1
1081 1081 2 1 40 ffffb2fe39dcf980 syz-executor.2
979 979 2 1 40 ffffb2fe3814e780 syz-executor.4
1095 1095 2 1 40 ffffb2fe39dcf540 syz-executor.5
418 418 2 1 40 ffffb2fe38619040 syz-executor.1
1077 1077 2 0 40 ffffb2fe39dcf100 syz-executor.3
1071 1071 2 1 40 ffffb2fe3905b940 syz-executor.0
1064 1076 3 0 80 ffffb2fe3905b500 syz-execprog kqueue
1064 1100 3 0 80 ffffb2fe38619480 syz-execprog parked
1064 1067 3 1 80 ffffb2fe36ee8640 syz-execprog parked
1064 1088 3 1 80 ffffb2fe37675b80 syz-execprog parked
1064 1075 3 1 80 ffffb2fe3717f240 syz-execprog parked
1064 929 3 1 80 ffffb2fe37675300 syz-execprog parked
1064 1068 3 0 80 ffffb2fe36ee8a80 syz-execprog parked
1064 1064 3 0 80 ffffb2fe36c455c0 syz-execprog parked
1254 1254 3 1 80 ffffb2fe36ee8200 sshd select
945 945 3 1 80 ffffb2fe37675740 getty nanoslp
695 695 3 1 80 ffffb2fe386198c0 getty nanoslp
1089 1089 3 1 80 ffffb2fe38e72900 getty nanoslp
942 942 3 0 c0 ffffb2fe3733f6c0 getty ttyraw
941 941 3 1 80 ffffb2fe3905b0c0 sshd select
982 982 3 0 80 ffffb2fe38e724c0 powerd kqueue
570 570 3 0 80 ffffb2fe3814ebc0 syslogd kqueue
589 589 3 0 80 ffffb2fe3814e340 dhcpcd poll
587 587 3 0 80 ffffb2fe375372c0 dhcpcd poll
585 585 3 0 80 ffffb2fe3733f280 dhcpcd poll
551 551 3 0 80 ffffb2fe3717fac0 dhcpcd poll
347 347 3 0 80 ffffb2fe37537b40 dhcpcd poll
346 346 3 1 80 ffffb2fe37537700 dhcpcd poll
345 345 3 0 80 ffffb2fe3733fb00 dhcpcd poll
1 1 3 0 80 ffffb2fe2ead44c0 init wait
0 853 3 0 200 ffffb2fe36c45a00 physiod physiod
0 165 3 0 200 ffffb2fe36cc7a40 pooldrain pooldrain
0 > 164 7 0 240 ffffb2fe36cc7600 ioflush
0 163 3 1 200 ffffb2fe36cc71c0 pgdaemon pgdaemon
0 160 3 1 200 ffffb2fe36c45180 usb7 usbevt
0 31 3 1 200 ffffb2fe33bf89c0 usb6 usbevt
0 63 3 0 200 ffffb2fe33bf8580 usb5 usbevt
0 126 3 1 200 ffffb2fe33bf8140 usb4 usbevt
0 125 3 1 200 ffffb2fe30b8b980 usb3 usbevt
0 124 3 1 200 ffffb2fe30b8b540 usb2 usbevt
0 123 3 1 200 ffffb2fe30b8b100 usb1 usbevt
0 122 3 1 200 ffffb2fe2faf6940 usb0 usbevt
0 121 3 1 200 ffffb2fe2faf6500 usbtask-dr usbtsk
0 120 3 1 200 ffffb2fe2faf60c0 usbtask-hc usbtsk
0 119 3 0 200 ffffb2fe2ead4900 npfgc0 npfgcw
0 118 3 1 200 ffffb2fe2ead4080 rt_free rt_free
0 117 3 1 200 ffffb2fe2ea8f8c0 unpgc unpgc
0 116 3 0 200 ffffb2fe2ea8f480 key_timehandler key_timehandler
0 115 3 1 200 ffffb2fe2ea8f040 icmp6_wqinput/1 icmp6_wqinput
0 114 3 0 200 ffffb2fe2ea7abc0 icmp6_wqinput/0 icmp6_wqinput
0 113 3 0 200 ffffb2fe2ea7a780 nd6_timer nd6_timer
0 112 3 1 200 ffffb2fe2ea7a340 carp6_wqinput/1 carp6_wqinput
0 111 3 0 200 ffffb2fe2ea39b80 carp6_wqinput/0 carp6_wqinput
0 110 3 1 200 ffffb2fe2ea39740 carp_wqinput/1 carp_wqinput
0 109 3 0 200 ffffb2fe2ea39300 carp_wqinput/0 carp_wqinput
0 108 3 1 200 ffffb2fe2e388b00 icmp_wqinput/1 icmp_wqinput
0 107 3 0 200 ffffb2fe2ea002c0 icmp_wqinput/0 icmp_wqinput
0 106 3 0 200 ffffb2fe2bf3aac0 rt_timer rt_timer
0 105 2 1 200 ffffb2fe2ea00700 vmem_rehash
0 104 3 0 200 ffffb2fe2ea00b40 entbutler entropy
0 30 3 1 200 ffffb2fe2e3886c0 vioif0_txrx/1 vioif0_txrx
0 29 3 0 200 ffffb2fe2e388280 vioif0_txrx/0 vioif0_txrx
0 27 3 0 200 ffffb2fe2bf3a680 scsibus0 sccomp
0 26 3 0 200 ffffb2fe2bf3a240 pms0 pmsreset
0 25 3 1 200 ffffb2fe2be7ca80 xcall/1 xcall
0 24 1 1 200 ffffb2fe2be7c640 softser/1
0 23 1 1 200 ffffb2fe2be7c200 softclk/1
0 22 1 1 200 ffffb2fe2be47a40 softbio/1
0 21 1 1 200 ffffb2fe2be47600 softnet/1
0 20 1 1 201 ffffb2fe2be471c0 idle/1
0 19 3 0 200 ffffb2ff3bd8ba00 lnxpwrwq lnxpwrwq
0 18 3 0 200 ffffb2ff3bd8b5c0 lnxlngwq lnxlngwq
0 17 3 0 200 ffffb2ff3bd8b180 lnxsyswq lnxsyswq
0 16 3 1 200 ffffb2ff3bda49c0 lnxrcugc lnxrcugc
0 15 3 0 200 ffffb2ff3bda4580 sysmon smtaskq
0 14 3 0 200 ffffb2ff3bda4140 pmfsuspend pmfsuspend
0 13 3 1 200 ffffb2ff3bdb5980 pmfevent pmfevent
0 12 3 0 200 ffffb2ff3bdb5540 sopendfree sopendfr
0 11 3 0 200 ffffb2ff3bdb5100 iflnkst iflnkst
0 10 3 0 200 ffffb2ff3cdde940 nfssilly nfssilly
0 9 3 0 200 ffffb2ff3cdde500 vdrain vdrain
0 8 3 0 200 ffffb2ff3cdde0c0 modunload mod_unld
0 7 3 0 200 ffffb2ff3ce15900 xcall/0 xcall
0 6 1 0 200 ffffb2ff3ce154c0 softser/0
0 5 1 0 200 ffffb2ff3ce15080 softclk/0
0 4 1 0 200 ffffb2ff3ce3f8c0 softbio/0
0 3 1 0 200 ffffb2ff3ce3f480 softnet/0
0 2 1 0 201 ffffb2ff3ce3f040 idle/0
0 0 2 1 240 ffffffff85ed95c0 swapper
[Locks tracked through LWPs]

****** LWP 422.422 (syz-executor.4) @ 0xffffb2fe3a37b180, l_stat=2

*** Locks held:

* Lock 0 (initialized at pmap_ctor)
lock address : 0xffffb2fe371e6380 type : sleep/adaptive
initialized : 0xffffffff80f535be

shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0

relevant lwp : 0xffffb2fe3a37b180 last held: 0xffffb2fe3a37b180
last locked* : 0xffffffff80f55c6a unlocked : 0xffffffff80f532f6

owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 454.454 (syz-executor.3) @ 0xffffb2fe3aca8140, l_stat=2

*** Locks held:

* Lock 0 (initialized at pmap_ctor)
lock address : 0xffffb2fe37890d80 type : sleep/adaptive
initialized : 0xffffffff80f535be

shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0

relevant lwp : 0xffffb2fe3aca8140 last held: 0xffffb2fe3aca8140
last locked* : 0xffffffff80f55c6a unlocked : 0xffffffff80f532f6

owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

*** Locks wanted:

* Lock 0 (initialized at pmap_ctor)
lock address : 0xffffb2fe37890d88 type : sleep/adaptive
initialized : 0xffffffff80f535ec

shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 1
relevant cpu : 0 last held: 0

relevant lwp : 0xffffb2fe3aca8140 last held: 000000000000000000
last locked : 0xffffffff80f4000f unlocked*: 0xffffffff80f4048f

owner/count : 000000000000000000 flags : 000000000000000000
Turnstile: no active turnstile for this lock.

****** LWP 458.1360 (syz-executor.5) @ 0xffffb2fe3a22ca40, l_stat=2

*** Locks held:

* Lock 0 (initialized at vcache_alloc)

lock address : 0xffffb2fe39e76780 type : sleep/adaptive
initialized : 0xffffffff8350cda8

shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 1

relevant lwp : 0xffffb2fe3a22ca40 last held: 0xffffb2fe3a22ca40
last locked* : 0xffffffff835673a0 unlocked : 0xffffffff8356712d
owner/count : 0xffffb2fe3a22ca40 flags : 0x0000000000000004

Turnstile: no active turnstile for this lock.

* Lock 1 (initialized at vcache_alloc)
lock address : 0xffffb2fe3a2b7cc0 type : sleep/adaptive
initialized : 0xffffffff8350cda8

shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 1

relevant lwp : 0xffffb2fe3a22ca40 last held: 0xffffb2fe3a22ca40
last locked* : 0xffffffff835673a0 unlocked : 000000000000000000
owner/count : 0xffffb2fe3a22ca40 flags : 0x0000000000000004

Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 1206.1249 (syz-executor.1) @ 0xffffb2fe39d1ea80, l_stat=7

*** Locks held:

* Lock 0 (initialized at vfs_mountalloc)

lock address : 0xffffb2fe3a8017c0 type : sleep/adaptive
initialized : 0xffffffff834dce4b

shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 1

relevant lwp : 0xffffb2fe39d1ea80 last held: 0xffffb2fe39d1ea80
last locked* : 0xffffffff834e37c9 unlocked : 000000000000000000
owner field : 0xffffb2fe39d1ea80 wait/spin: 0/0

Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 1081.1081 (syz-executor.2) @ 0xffffb2fe39dcf980, l_stat=2

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at amap_ctor)
lock address : 0xffffb2fe39d1f2c0 type : sleep/adaptive
initialized : 0xffffffff83105825

shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 1

relevant cpu : 1 last held: 0

relevant lwp : 0xffffb2fe39dcf980 last held: 000000000000000000
last locked : 0xffffffff83111b0c unlocked*: 0xffffffff83106cd5

owner/count : 000000000000000000 flags : 000000000000000000
Turnstile: no active turnstile for this lock.

****** LWP 1077.1077 (syz-executor.3) @ 0xffffb2fe39dcf100, l_stat=2

*** Locks held:

* Lock 0 (initialized at amap_alloc1)
lock address : 0xffffb2fe38e827c0 type : sleep/adaptive
initialized : 0xffffffff83104fca

shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0

relevant lwp : 0xffffb2fe39dcf100 last held: 0xffffb2fe39dcf100
last locked* : 0xffffffff83128cc5 unlocked : 0xffffffff8310adaa

owner/count : 000000000000000000 flags : 000000000000000000
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 587.587 (dhcpcd) @ 0xffffb2fe375372c0, l_stat=3