login: panic: unhandled af 22 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 399491 4160 0 0x2 0x480 1 syz-executor2422 *397338 3323 0 0x14000 0x200 0K softnet db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82208938) at panic+0x15c sys/kern/subr_prf.c:207 unhandled_af(16) at unhandled_af+0x16 pf_build_tcp(ffffffff82652468,16,fffffd806e6b8860,fffffd806e6b8850,0,0) at pf_build_tcp+0x3c8 pf_remove_state(fffffd806ed39000) at pf_remove_state+0x9a pf_send_tcp sys/net/pf.c:2892 [inline] pf_remove_state(fffffd806ed39000) at pf_remove_state+0x9a sys/net/pf.c:1382 pf_purge_expired_states(2) at pf_purge_expired_states+0x1ed pf_purge(ffffffff826a96d8) at pf_purge+0x3f sys/net/pf.c:1278 taskq_thread(ffff80000002b080) at taskq_thread+0x9c sys/kern/kern_task.c:369 end trace frame: 0x0, count: 7 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic unhandled af 22 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82208938) at panic+0x15c sys/kern/subr_prf.c:207 unhandled_af(16) at unhandled_af+0x16 pf_build_tcp(ffffffff82652468,16,fffffd806e6b8860,fffffd806e6b8850,0,0) at pf_build_tcp+0x3c8 pf_remove_state(fffffd806ed39000) at pf_remove_state+0x9a pf_send_tcp sys/net/pf.c:2892 [inline] pf_remove_state(fffffd806ed39000) at pf_remove_state+0x9a sys/net/pf.c:1382 pf_purge_expired_states(2) at pf_purge_expired_states+0x1ed pf_purge(ffffffff826a96d8) at pf_purge+0x3f sys/net/pf.c:1278 taskq_thread(ffff80000002b080) at taskq_thread+0x9c sys/kern/kern_task.c:369 end trace frame: 0x0, count: -8 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800020e39b80 rbx 0xffff800020e39c30 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff814a3bdf kprintf+0x16f r9 0x1 r10 0x2 r11 0xe71589ee515710c4 r12 0x3000000008 r13 0xffff800020e39b90 r14 0x100 r15 0x1 rip 0xffffffff81bf1358 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020e39b70 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (softnet) pid=397338 stat=onproc flags process=14000 proc=200 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020e189c0,0xffff800020e184f0 process=0xffff800020e1a000 user=0xffff800020e34000, vmspace=0xffffffff826b1ea8 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 4160 399491 44996 0 7 0x482 syz-executor2422 44996 177244 33823 0 3 0x10008a pause ksh 33823 472295 22604 0 3 0x92 select sshd 63740 440271 1 0 3 0x100083 ttyin getty 22604 86554 1 0 3 0x80 select sshd 85895 116923 86050 74 3 0x100092 bpf pflogd 86050 464412 1 0 3 0x80 netio pflogd 33036 365794 32403 73 3 0x100090 kqread syslogd 32403 291365 1 0 3 0x100082 netio syslogd 46088 303383 1 77 3 0x100090 poll dhclient 48958 97392 1 0 3 0x80 poll dhclient 28834 110829 0 0 3 0x14200 bored smr 74193 392404 0 0 3 0x14200 pgzero zerothread 96076 398861 0 0 3 0x14200 aiodoned aiodoned 5242 330060 0 0 3 0x14200 syncer update 89163 207880 0 0 3 0x14200 cleaner cleaner 14696 524226 0 0 3 0x14200 reaper reaper 91349 15455 0 0 3 0x14200 pgdaemon pagedaemon 87020 511568 0 0 3 0x14200 bored crynlk 95623 321451 0 0 3 0x14200 bored crypto 70111 395081 0 0 3 0x40014200 acpi0 acpi0 40786 500454 0 0 3 0x40014200 idle1 * 3323 397338 0 0 7 0x14200 softnet 2878 140328 0 0 3 0x14200 bored systqmp 67755 458837 0 0 3 0x14200 bored systq 15615 479380 0 0 3 0x40014200 bored softclock 55884 72165 0 0 3 0x40014200 idle0 1 121876 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 3323 (softnet) thread 0xffff800020e18750 (397338) exclusive rwlock netlock r = 0 (0xffffffff82507458) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 pf_purge+0x27 sys/net/pf.c:1273 #2 taskq_thread+0x9c sys/kern/kern_task.c:369 #3 proc_trampoline+0x1c exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82691818) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 pf_purge+0x1b sys/net/pf.c:1264 #2 taskq_thread+0x9c sys/kern/kern_task.c:369 #3 proc_trampoline+0x1c shared rwlock softnet r = 0 (0xffff80000002b0e0) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 taskq_thread+0x8f sys/kern/kern_task.c:368 #2 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9463 6393K 6394K 78643K 10556 0 pcb 13 8K 8K 78643K 13 0 rtable 61 2K 2K 78643K 127 0 ifaddr 30 8K 8K 78643K 31 0 counters 39 33K 33K 78643K 39 0 ioctlops 0 0K 4K 78643K 1584 0 mount 1 1K 1K 78643K 1 0 vnodes 1183 74K 75K 78643K 1188 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 1 0K 0K 78643K 1 0 proc 59 63K 71K 78643K 358 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 0K 78643K 11 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 19 95K 95K 78643K 19 0 exec 0 0K 1K 78643K 177 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 60 3K 4K 78643K 913 0 UVM aobj 2 2K 2K 78643K 2 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 4 0K 0K 78643K 4 0 temp 24 3029K 3093K 78643K 1671 0 kqueue 2 2K 2K 78643K 2 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 2 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 15 0 13 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 120 29 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 2 1 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 29 0 23 1 0 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 10 0 0 1 0 1 1 0 8 0 pfstkey 112 126 0 116 1 0 1 1 0 8 0 pfstate 328 126 0 116 1 0 1 1 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 97 0 0 7 0 7 7 0 8 0 art_table 32 98 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1400 0 16 87 0 87 87 0 8 0 ffsino 272 1400 0 16 93 0 93 93 0 8 0 nchpl 144 1574 0 32 58 0 58 58 0 8 0 uvmvnodes 72 1410 0 0 26 0 26 26 0 8 0 vnodes 208 1410 0 0 75 0 75 75 0 8 0 namei 1024 3894 0 3894 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 2974 0 2974 9 2 7 7 0 8 7 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 424 337 0 309 4 0 4 4 0 8 0 knotepl 112 5 0 0 1 0 1 1 0 8 0 kqueuepl 144 1 0 0 1 0 1 1 0 8 0 pipelkpl 48 64 0 60 2 1 1 1 0 8 0 pipepl 120 128 0 121 2 1 1 1 0 8 0 fdescpl 496 322 0 309 3 0 3 3 0 8 0 filepl 152 1078 0 1030 2 0 2 2 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 112 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 62 0 53 1 0 1 1 0 8 0 zombiepl 144 309 0 308 2 1 1 1 0 8 0 processpl 984 337 0 308 4 0 4 4 0 8 0 procpl 624 337 0 308 3 0 3 3 0 8 0 sockpl 400 73 0 55 2 0 2 2 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 89 0 0 10 0 10 10 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 116 0 0 6 0 6 6 0 8 0 bufpl 280 1890 0 91 129 0 129 129 0 8 0 anonpl 16 19919 0 18707 8 3 5 7 0 124 0 amapchunkpl 152 642 0 604 2 0 2 2 0 158 0 amappl16 192 198 0 195 1 0 1 1 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 22 0 19 1 0 1 1 0 8 0 amappl13 168 14 0 13 2 1 1 1 0 8 0 amappl12 160 9 0 9 1 1 0 1 0 8 0 amappl11 152 49 0 34 1 0 1 1 0 8 0 amappl10 144 8 0 6 1 0 1 1 0 8 0 amappl9 136 225 0 223 1 0 1 1 0 8 0 amappl8 128 232 0 231 1 0 1 1 0 8 0 amappl7 120 94 0 85 1 0 1 1 0 8 0 amappl6 112 14 0 14 2 2 0 1 0 8 0 amappl5 104 261 0 246 1 0 1 1 0 8 0 amappl4 96 462 0 436 1 0 1 1 0 8 0 amappl3 88 96 0 90 1 0 1 1 0 8 0 amappl2 80 748 0 697 3 1 2 2 0 8 0 amappl1 72 14370 0 13958 15 5 10 15 0 8 0 amappl 80 526 0 505 1 0 1 1 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 64 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 322 0 309 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 322 0 309 1 0 1 1 0 8 0 vmmpekpl 168 5690 0 5668 2 0 2 2 0 8 0 vmmpepl 168 30947 0 30131 50 11 39 48 0 357 0 vmsppl 368 321 0 309 2 0 2 2 0 8 0 pdppl 4096 652 0 618 6 0 6 6 0 8 0 pvpl 32 81835 0 78897 34 6 28 28 0 265 3 pmappl 232 321 0 309 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 228 0 4 7 0 7 7 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82208938) at panic+0x15c sys/kern/subr_prf.c:207 unhandled_af(16) at unhandled_af+0x16 pf_build_tcp(ffffffff82652468,16,fffffd806e6b8860,fffffd806e6b8850,0,0) at pf_build_tcp+0x3c8 pf_remove_state(fffffd806ed39000) at pf_remove_state+0x9a pf_send_tcp sys/net/pf.c:2892 [inline] pf_remove_state(fffffd806ed39000) at pf_remove_state+0x9a sys/net/pf.c:1382 pf_purge_expired_states(2) at pf_purge_expired_states+0x1ed pf_purge(ffffffff826a96d8) at pf_purge+0x3f sys/net/pf.c:1278 taskq_thread(ffff80000002b080) at taskq_thread+0x9c sys/kern/kern_task.c:369 end trace frame: 0x0, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020e00ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82691610) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82691610) at __mp_lock+0x127 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82691610,1) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800020f13510,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020f13510,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020f13510,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff826116dc,120,ffffffff821ef4d2,2) at tsleep+0x1cc sys/kern/kern_synch.c:155 sys_nanosleep(ffff800020ed0eb0,ffff800020f13640,ffff800020f13690) at sys_nanosleep+0x205 sys/kern/kern_time.c:297 syscall(ffff800020f13710) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020f13710) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe2600, count: 3 ddb{1}> trace x86_ipi_db(ffff800020e00ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82691610) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82691610) at __mp_lock+0x127 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82691610,1) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800020f13510,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020f13510,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020f13510,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff826116dc,120,ffffffff821ef4d2,2) at tsleep+0x1cc sys/kern/kern_synch.c:155 sys_nanosleep(ffff800020ed0eb0,ffff800020f13640,ffff800020f13690) at sys_nanosleep+0x205 sys/kern/kern_time.c:297 syscall(ffff800020f13710) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020f13710) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe2600, count: -12 ddb{1}>