login: panic: pool_p_free: sockpl free list modified: page 0xfffffd806b9b2000; item addr 0xfffffd806b9b2073; offset 0x0=0x2ab558643edec2a3 Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *212099 85563 0 0x14000 0x200 0 systqmp db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827faa51) at panic+0x165 sys/kern/subr_prf.c:198 pool_p_free(ffffffff82d50c18,fffffd806b9b2f90) at pool_p_free+0x1d3 pool_gc_pages(0) at pool_gc_pages+0x215 sys/kern/subr_pool.c:1583 taskq_thread(ffffffff82b6fd50) at taskq_thread+0x9b sys/kern/kern_task.c:450 end trace frame: 0x0, count: 10 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: pool_p_free: sockpl free list modified: page 0xfffffd806b9b2000; item addr 0xfffffd806b9b2073; offset 0x0=0x2ab558643edec2a3 ddb> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827faa51) at panic+0x165 sys/kern/subr_prf.c:198 pool_p_free(ffffffff82d50c18,fffffd806b9b2f90) at pool_p_free+0x1d3 pool_gc_pages(0) at pool_gc_pages+0x215 sys/kern/subr_pool.c:1583 taskq_thread(ffffffff82b6fd50) at taskq_thread+0x9b sys/kern/kern_task.c:450 end trace frame: 0x0, count: -5 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff800021600180 rbx 0x643edec2a386b84f rdx 0 rcx 0 rax 0xffff8000ffffe000 r8 0x101010101010101 r9 0x8080808080808080 r10 0xe2e93ba25fc48297 r11 0x845bb796b296be5a r12 0 r13 0x2ab558643edec2a3 r14 0 r15 0x1 rip 0xffffffff81e8f2dc db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff800021600170 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb> show proc PROC (systqmp) pid=212099 stat=onproc flags process=14000 proc=200 pri=32, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffffe2b8,0xffff8000ffffe580 process=0xffff8000ffffcbd0 user=0xffff8000215fb000, vmspace=0xffffffff82cdde98 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 52630 128613 47853 0 3 0x3000 suspend syz-executor.6 52630 96279 47853 0 3 0x4081001 kernel: protection fault trap, code=0 Faulted in DDB; continuing... ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10185 6413K 6797K 78643K 13193 0 pcb 13 10K 10K 78643K 132 0 rtable 236 6K 7K 78643K 439 0 pf 29 8K 9K 78643K 105 0 ifaddr 43 11K 12K 78643K 87 0 ifgroup 50 2K 2K 78643K 160 0 sysctl 1 1K 1K 78643K 1 0 counters 28 17K 17K 78643K 60 0 ioctlops 0 0K 2K 78643K 142 0 iov 0 0K 16K 78643K 371 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1343 84K 84K 78643K 1914 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 32 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 224 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 11 37K 69K 78643K 1721 0 sigio 0 0K 0K 78643K 11 0 proc 58 59K 75K 78643K 673 0 subproc 104 6K 6K 78643K 130 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 39 0 in_multi 99 7K 7K 78643K 139 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 157 705K 705K 78643K 157 0 exec 0 0K 1K 78643K 507 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 285 85K 88K 78643K 18741 0 UVM aobj 131 4K 4K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 32 0 NDP 11 0K 2K 78643K 63 0 temp 96 5872K 5944K 78643K 15596 0 kqueue 12 18K 30K 78643K 275 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 71 0 68 1 0 1 1 0 8 0 rtentry 112 142 0 31 4 0 4 4 0 8 0 unpcb 144 949 0 936 13 12 1 6 0 8 0 syncache 296 7 0 7 2 2 0 1 0 8 0 tcpqe 32 168 0 168 1 1 0 1 0 8 0 tcpcb 808 359 0 355 16 15 1 7 0 8 0 arp 88 22 0 4 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 336 2467 0 2460 22 21 1 9 0 8 0 nd6 104 33 0 8 1 0 1 1 0 8 0 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1160 15 0 15 2 2 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 552 0 92 29 0 29 29 0 8 0 art_table 32 553 0 92 4 0 4 4 0 8 0 art_node 16 135 0 34 1 0 1 1 0 8 0 sysvmsgpl 40 11 0 4 1 0 1 1 0 8 0 semapl 112 222 0 212 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3687 0 2233 92 0 92 92 0 8 0 ffsino 240 3687 0 2233 86 0 86 86 0 8 0 nchpl 144 6418 0 5897 63 41 22 63 0 8 0 uvmvnodes 80 4266 0 0 88 0 88 88 0 8 0 vnodes 216 4266 0 0 237 0 237 237 0 8 0 namei 1024 21646 0 21646 5 5 0 3 0 8 0 kstatmem 264 86 0 64 2 0 2 2 0 8 0 scxspl 216 19710 0 19710 15 14 1 8 1 8 1 plimitpl 152 206 0 191 1 0 1 1 0 8 0 sigapl 424 2016 0 1976 6 0 6 6 0 8 0 futexpl 64 17407 0 17407 1 1 0 1 0 8 0 knotepl 120 19652 0 19572 13 10 3 7 0 8 0 kqueuepl 184 897 0 889 7 6 1 4 0 8 0 pipepl 288 342 0 314 6 3 3 6 0 8 0 fdescpl 432 1998 0 1976 4 0 4 4 0 8 0 filepl 120 12314 0 12080 24 16 8 15 0 8 0 lockfpl 104 875 0 873 3 2 1 2 0 8 0 lockfspl 48 279 0 277 1 0 1 1 0 8 0 sessionpl 144 26 0 10 1 0 1 1 0 8 0 pgrppl 48 32 0 16 1 0 1 1 0 8 0 ucredpl 104 982 0 972 1 0 1 1 0 8 0 zombiepl 144 1976 0 1976 1 1 0 1 0 8 0 processpl 1008 2016 0 1976 7 1 6 6 0 8 0 procpl 696 4848 0 4791 12 5 7 9 0 8 0 sosppl 168 16 0 16 2 2 0 1 0 8 0 sockpl 456 3527 0 3504 59 56 3 21 0 8 0 mcl64k 65536 56 0 56 3 3 0 1 0 8 0 mcl16k 16384 19 0 19 4 4 0 1 0 8 0 mcl12k 12288 46 0 46 2 2 0 1 0 8 0 mcl9k 9216 30 0 30 3 3 0 1 0 8 0 mcl8k 8192 108 0 108 5 5 0 1 0 8 0 mcl4k 4096 278 0 278 2 2 0 1 0 8 0 mcl2k2 2112 14 0 14 3 3 0 1 0 8 0 mcl2k 2048 67672 0 67630 31 24 7 27 0 8 0 mtagpl 96 168 0 33 5 1 4 4 0 8 0 mbufpl 256 133042 0 132752 122 97 25 114 0 8 0 bufpl 288 7131 0 733 458 0 458 458 0 8 0 anonpl 24 372645 0 360130 119 38 81 101 0 188 0 amapchunkpl 152 60288 0 59594 41 8 33 37 0 158 0 amappl16 200 9964 0 9580 41 16 25 34 0 8 0 amappl15 192 45 0 44 1 0 1 1 0 8 0 amappl14 184 184 0 170 2 1 1 2 0 8 0 amappl13 176 18 0 18 2 2 0 1 0 8 0 amappl12 168 2648 0 2624 2 0 2 2 0 8 0 amappl11 160 56 0 45 1 0 1 1 0 8 0 amappl10 152 34 0 21 1 0 1 1 0 8 0 amappl9 144 146 0 144 1 0 1 1 0 8 0 amappl8 136 241 0 171 3 0 3 3 0 8 0 amappl7 128 61 0 53 1 0 1 1 0 8 0 amappl6 120 293 0 271 2 1 1 2 0 8 0 amappl5 112 194 0 186 1 0 1 1 0 8 0 amappl4 104 564 0 530 2 0 2 2 0 8 0 amappl3 96 12455 0 12404 4 1 3 3 0 8 0 amappl2 88 2280 0 2224 3 1 2 3 0 8 0 amappl1 80 15670 0 15176 22 10 12 22 0 8 0 amappl 88 18093 0 17920 7 1 6 6 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 1998 0 1976 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1998 0 1976 1 0 1 1 0 8 0 vmmpekpl 168 20275 0 20230 3 0 3 3 0 8 0 vmmpepl 168 141779 0 139859 140 41 99 127 0 357 0 vmsppl 368 1997 0 1976 3 0 3 3 0 8 0 rwobjpl 24 46983 0 41244 35 0 35 35 0 8 0 pdppl 4096 4003 0 3952 157 98 59 67 0 8 8 pvpl 32 810472 0 792938 333 86 247 333 0 265 96 pmappl 216 1997 0 1976 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1048 0 279 26 1 25 26 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827faa51) at panic+0x165 sys/kern/subr_prf.c:198 pool_p_free(ffffffff82d50c18,fffffd806b9b2f90) at pool_p_free+0x1d3 pool_gc_pages(0) at pool_gc_pages+0x215 sys/kern/subr_pool.c:1583 taskq_thread(ffffffff82b6fd50) at taskq_thread+0x9b sys/kern/kern_task.c:450 end trace frame: 0x0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827faa51) at panic+0x165 sys/kern/subr_prf.c:198 pool_p_free(ffffffff82d50c18,fffffd806b9b2f90) at pool_p_free+0x1d3 pool_gc_pages(0) at pool_gc_pages+0x215 sys/kern/subr_pool.c:1583 taskq_thread(ffffffff82b6fd50) at taskq_thread+0x9b sys/kern/kern_task.c:450 end trace frame: 0x0, count: -5