panic: pool_p_free: sockpl free list modified: page 0xfffffd805bddc000; item addr 0xfffffd805bddc9d3; offset 0x0=0xcf22d81388c77169 Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *276638 12040 0 0x14000 0x200 0 systqmp db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff828c559d) at panic+0x165 sys/kern/subr_prf.c:198 pool_p_free(ffffffff82e08578,fffffd805bddcf90) at pool_p_free+0x1d3 pool_gc_pages(0) at pool_gc_pages+0x215 sys/kern/subr_pool.c:1583 taskq_thread(ffffffff82c53c50) 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 0xfffffd805bddc000; item addr 0xfffffd805bddc9d3; offset 0x0=0xcf22d81388c77169 ddb> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff828c559d) at panic+0x165 sys/kern/subr_prf.c:198 pool_p_free(ffffffff82e08578,fffffd805bddcf90) at pool_p_free+0x1d3 pool_gc_pages(0) at pool_gc_pages+0x215 sys/kern/subr_pool.c:1583 taskq_thread(ffffffff82c53c50) at taskq_thread+0x9b sys/kern/kern_task.c:450 end trace frame: 0x0, count: -5 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80002a5a5a60 rbx 0x1388c7716951501c rdx 0 rcx 0 rax 0xffff80002a58c2a8 r8 0x101010101010101 r9 0x8080808080808080 r10 0xad67b7e7c367f77d r11 0x6cd0c91bcf4f0d95 r12 0 r13 0xcf22d81388c77169 r14 0 r15 0x1 rip 0xffffffff81bf226c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002a5a5a50 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb> show proc PROC (systqmp) tid=276638 pid=12040 tcnt=1 stat=onproc flags process=14000 proc=200 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a58c000,0xffff80002a58c560 process=0xffff8000ffffd920 user=0xffff80002a5a0000, vmspace=0xffffffff82de3270 estcpu=0, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 4438 369377 29840 0 3 0x1 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 10178 6418K 7141K 166960K 24177 0 pcb 15 18K 20K 166960K 1039 0 rtable 204 14K 16K 166960K 1878 0 pf 31 9K 10K 166960K 315 0 ifaddr 38 11K 13K 166960K 272 0 ifgroup 54 2K 2K 166960K 514 0 sysctl 3 0K 0K 166960K 3 0 counters 31 17K 18K 166960K 152 0 ioctlops 0 0K 2K 166960K 885 0 iov 0 0K 24K 166960K 1039 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1564 98K 98K 166960K 6981 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 105 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 1293 0 dirhash 12 2K 2K 166960K 42 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 12 41K 69K 166960K 8615 0 sigio 0 0K 0K 166960K 626 0 proc 58 59K 75K 166960K 1672 0 subproc 104 6K 6K 166960K 581 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 375 0 in_multi 77 5K 7K 166960K 537 0 ether_multi 1 0K 0K 166960K 6 0 mrt 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 1958 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 424 592K 593K 166960K 81454 0 UVM aobj 131 4K 4K 166960K 131 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 505 0 NDP 12 0K 2K 166960K 213 0 temp 76 6701K 7008K 166960K 67096 0 kqueue 13 20K 26K 166960K 610 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 593 0 590 6 5 1 3 0 8 0 rtentry 112 537 0 448 6 3 3 4 0 8 0 unpcb 144 8385 0 8372 86 85 1 6 0 8 0 syncache 320 194 0 194 15 15 0 1 0 8 0 tcpqe 32 474 0 474 11 11 0 1 0 8 0 tcpcb 808 3224 0 3167 68 59 9 18 0 8 0 arp 88 99 0 85 1 0 1 1 0 8 0 ipq 40 3 0 3 3 3 0 1 0 8 0 ipqe 40 11 0 11 3 3 0 1 0 8 0 inpcb 344 8767 0 8707 102 93 9 17 0 8 0 nd6 104 126 0 107 1 0 1 1 0 8 0 pkpcb 40 27 0 27 6 6 0 1 0 8 0 kcovpl 48 39 0 31 1 0 1 1 0 8 0 ppxss 1072 33 0 33 7 7 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2049 0 1676 48 24 24 30 0 8 0 art_table 32 2050 0 1676 5 1 4 4 0 8 0 art_node 16 519 0 438 1 0 1 1 0 8 0 sysvmsgpl 40 26 0 5 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 1291 0 1281 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 37 0 20 3 0 3 3 0 8 0 dino2pl 256 13186 0 11706 93 0 93 93 0 8 0 ffsino 240 13186 0 11706 88 0 88 88 0 8 0 nchpl 144 24949 0 23297 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 88846 0 88842 11 10 1 3 0 8 0 vcpupl 2048 118 0 1 15 0 15 15 0 8 0 vmpool 664 156 0 39 11 1 10 10 0 8 0 kstatmem 264 266 0 242 3 1 2 3 0 8 0 scxspl 216 71139 0 71139 22 21 1 8 1 8 1 plimitpl 152 1117 0 1102 1 0 1 1 0 8 0 sigapl 424 9196 0 9132 9 1 8 8 0 8 0 futexpl 64 85009 0 85009 1 1 0 1 0 8 0 knotepl 120 87754 0 87671 41 37 4 17 0 8 0 kqueuepl 184 1721 0 1712 22 21 1 6 0 8 0 pipepl 288 2310 0 2282 57 53 4 11 0 8 0 fdescpl 432 8838 0 8815 4 0 4 4 0 8 0 filepl 120 59948 0 59710 107 96 11 19 0 8 0 lockfpl 104 2993 0 2991 6 5 1 2 0 8 0 lockfspl 48 1058 0 1056 1 0 1 1 0 8 0 sessionpl 144 54 0 38 1 0 1 1 0 8 0 pgrppl 48 434 0 418 1 0 1 1 0 8 0 ucredpl 104 6617 0 6607 1 0 1 1 0 8 0 zombiepl 144 9135 0 9132 3 2 1 1 0 8 0 processpl 1072 9196 0 9132 5 0 5 5 0 8 0 procpl 680 22215 0 22135 17 9 8 9 0 8 0 sosppl 168 139 0 136 10 9 1 1 0 8 0 sockpl 488 17783 0 17707 342 328 14 40 0 8 0 mcl64k 65536 332 0 332 22 22 0 1 0 8 0 mcl16k 16384 189 0 189 22 22 0 1 0 8 0 mcl12k 12288 466 0 466 19 19 0 1 0 8 0 mcl9k 9216 167 0 167 25 25 0 1 0 8 0 mcl8k 8192 557 0 557 13 13 0 1 0 8 0 mcl4k 4096 977 0 977 9 9 0 1 0 8 0 mcl2k2 2112 42 0 42 14 14 0 1 0 8 0 mcl2k 2048 84110 0 84062 58 50 8 33 0 8 0 mtagpl 96 1222 0 1210 11 9 2 7 0 8 0 mbufpl 256 228039 0 227841 433 410 23 94 0 8 0 bufpl 280 17840 0 11449 457 0 457 457 0 8 0 anonpl 24 948378 0 936452 152 58 94 107 0 188 0 amapchunkpl 152 257615 0 256858 79 41 38 45 0 158 0 amappl16 200 19511 0 19063 95 69 26 36 0 8 0 amappl15 192 14 0 14 1 1 0 1 0 8 0 amappl14 184 264 0 251 2 1 1 2 0 8 0 amappl13 176 72 0 70 1 0 1 1 0 8 0 amappl12 168 9941 0 9914 3 1 2 2 0 8 0 amappl11 160 61 0 50 1 0 1 1 0 8 0 amappl10 152 73 0 63 1 0 1 1 0 8 0 amappl9 144 227 0 226 1 0 1 1 0 8 0 amappl8 136 440 0 351 4 0 4 4 0 8 0 amappl7 128 272 0 248 2 0 2 2 0 8 0 amappl6 120 773 0 755 1 0 1 1 0 8 0 amappl5 112 282 0 274 1 0 1 1 0 8 0 amappl4 104 703 0 678 2 1 1 2 0 8 0 amappl3 96 50952 0 50885 3 0 3 3 0 8 0 amappl2 88 9801 0 9735 3 1 2 3 0 8 0 amappl1 80 41779 0 41285 22 10 12 22 0 8 0 amappl 88 80440 0 80211 7 0 7 7 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 8994 0 8854 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 8994 0 8854 1 0 1 1 0 8 0 vmmpekpl 168 67579 0 67497 4 0 4 4 0 8 0 vmmpepl 168 539582 0 537396 414 293 121 137 0 357 3 vmsppl 352 8993 0 8854 15 1 14 14 0 8 0 rwobjpl 24 134058 0 126514 48 1 47 47 0 8 0 pdppl 4096 17994 0 17825 580 406 174 181 0 8 5 pvpl 32 2475765 0 2458697 423 254 169 361 0 265 0 pmappl 216 8993 0 8854 12 3 9 9 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1541 0 1089 15 1 14 14 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(ffffffff828c559d) at panic+0x165 sys/kern/subr_prf.c:198 pool_p_free(ffffffff82e08578,fffffd805bddcf90) at pool_p_free+0x1d3 pool_gc_pages(0) at pool_gc_pages+0x215 sys/kern/subr_pool.c:1583 taskq_thread(ffffffff82c53c50) 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(ffffffff828c559d) at panic+0x165 sys/kern/subr_prf.c:198 pool_p_free(ffffffff82e08578,fffffd805bddcf90) at pool_p_free+0x1d3 pool_gc_pages(0) at pool_gc_pages+0x215 sys/kern/subr_pool.c:1583 taskq_thread(ffffffff82c53c50) at taskq_thread+0x9b sys/kern/kern_task.c:450 end trace frame: 0x0, count: -5