login: panic: pool_p_free: sockpl free list modified: page 0xfffffd8067dd4000; item addr 0xfffffd8067dd44a1; offset 0x0=0x3e2ec4e0648e0eb4 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *311503 3731 0 0x14000 0x200 0 systqmp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827a78d5) at panic+0x161 sys/kern/subr_prf.c:198 pool_p_free(ffffffff82c1e018,fffffd8067dd4f90) at pool_p_free+0x1d3 pool_gc_pages(0) at pool_gc_pages+0x215 sys/kern/subr_pool.c:1583 taskq_thread(ffffffff82ae87a0) at taskq_thread+0x9b sys/kern/kern_task.c:449 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 0xfffffd8067dd4000; item addr 0xfffffd8067dd44a1; offset 0x0=0x3e2ec4e0648e0eb4 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827a78d5) at panic+0x161 sys/kern/subr_prf.c:198 pool_p_free(ffffffff82c1e018,fffffd8067dd4f90) at pool_p_free+0x1d3 pool_gc_pages(0) at pool_gc_pages+0x215 sys/kern/subr_pool.c:1583 taskq_thread(ffffffff82ae87a0) at taskq_thread+0x9b sys/kern/kern_task.c:449 end trace frame: 0x0, count: -5 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80002160ff10 rbx 0x2ec4e0648e0eb4ab rdx 0 rcx 0 rax 0xffff8000ffffe2b8 r8 0x101010101010101 r9 0x8080808080808080 r10 0x2a4fd9157807c825 r11 0x91a845d49b650d35 r12 0 r13 0x3e2ec4e0648e0eb4 r14 0 r15 0x1 rip 0xffffffff81a69eb8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002160ff00 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (systqmp) pid=311503 stat=onproc flags process=14000 proc=200 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffffe570,0xffff8000ffffe010 process=0xffff8000ffffc000 user=0xffff80002160b000, vmspace=0xffffffff82c0a9b0 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 97960 194491 62300 0 3 0x11 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 10217 6415K 6751K 78643K 13703 0 pcb 13 15K 19K 78643K 412 0 rtable 177 14K 15K 78643K 651 0 ifaddr 67 19K 21K 78643K 244 0 sysctl 2 0K 0K 78643K 2 0 counters 26 17K 17K 78643K 87 0 ioctlops 0 0K 2K 78643K 259 0 iov 0 0K 16K 78643K 133 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1364 85K 86K 78643K 2360 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 128 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 11 37K 77K 78643K 1522 0 sigio 0 0K 0K 78643K 79 0 proc 59 59K 91K 78643K 696 0 subproc 104 6K 6K 78643K 169 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 57 0 in_multi 76 5K 7K 78643K 197 0 ether_multi 1 0K 0K 78643K 10 0 mrt 0 0K 0K 78643K 9 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 229 1023K 1023K 78643K 229 0 exec 0 0K 1K 78643K 754 0 pfkey data 0 0K 0K 78643K 4 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 254 80K 97K 78643K 11319 0 UVM aobj 94 3K 3K 78643K 94 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 51 0 NDP 11 0K 1K 78643K 79 0 temp 130 5770K 6781K 78643K 24332 0 kqueue 12 18K 26K 78643K 143 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 120 155 0 152 2 1 1 2 0 8 0 rtentry 112 193 0 116 4 0 4 4 0 8 0 unpcb 144 2474 0 2458 24 23 1 10 0 8 0 syncache 296 17 0 17 4 4 0 1 0 8 0 tcpqe 32 557 0 557 4 4 0 1 0 8 0 tcpcb 776 693 0 689 20 19 1 8 0 8 0 arp 88 28 0 16 1 0 1 1 0 8 0 ipq 40 5 0 5 1 1 0 1 0 8 0 ipqe 40 11 0 11 1 1 0 1 0 8 0 inpcb 336 2782 0 2775 37 36 1 15 0 8 0 nd6 48 39 0 21 1 0 1 1 0 8 0 pkpcb 40 8 0 8 2 2 0 1 0 8 0 kcovpl 48 13 0 5 1 0 1 1 0 8 0 mppekey 1024 2 0 2 1 1 0 1 0 8 0 ppxss 1160 44 0 44 2 2 0 1 0 8 0 pppxif 1360 13 0 13 3 3 0 1 0 8 0 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pfanchor 1280 383 0 198 21 3 18 21 0 8 0 pfstkey 128 4 0 4 1 1 0 1 0 8 0 pfstate 352 2 0 2 1 1 0 1 0 8 0 rttmr 136 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 2 0 1 2 1 1 2 0 8 0 art_heap4 256 847 0 493 30 6 24 30 0 8 0 art_table 32 849 0 494 4 0 4 4 0 8 0 art_node 16 192 0 126 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 0 1 0 1 1 0 8 0 semapl 112 123 0 113 1 0 1 1 0 8 0 shmpl 112 91 0 0 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3663 0 2226 91 0 91 91 0 8 0 ffsino 240 3663 0 2226 86 1 85 85 0 8 0 nchpl 144 5990 0 4344 63 0 63 63 0 8 0 uvmvnodes 80 4351 0 0 89 0 89 89 0 8 0 vnodes 216 4351 0 0 242 0 242 242 0 8 0 namei 1024 23106 0 23106 5 5 0 3 0 8 0 vmpool 664 16 0 16 3 3 0 1 0 8 0 kstatmem 264 106 0 84 2 0 2 2 0 8 0 scsiplug 72 5 0 5 1 1 0 1 0 8 0 scxspl 216 16724 0 16724 13 12 1 8 0 8 1 plimitpl 152 231 0 216 1 0 1 1 0 8 0 sigapl 424 1827 0 1763 9 1 8 8 0 8 0 futexpl 64 18119 0 18118 1 0 1 1 0 8 0 knotepl 120 33657 0 33577 15 10 5 11 0 8 0 kqueuepl 184 229 0 220 1 0 1 1 0 8 0 pipepl 288 474 0 446 18 15 3 7 0 8 0 fdescpl 432 1789 0 1767 5 1 4 4 0 8 0 filepl 120 16211 0 15972 31 21 10 16 0 8 0 lockfpl 104 298 0 295 2 1 1 2 0 8 0 lockfspl 48 85 0 82 1 0 1 1 0 8 0 sessionpl 144 29 0 13 1 0 1 1 0 8 0 pgrppl 48 29 0 13 1 0 1 1 0 8 0 ucredpl 104 2036 0 2025 1 0 1 1 0 8 0 zombiepl 144 1767 0 1763 2 1 1 1 0 8 0 processpl 1008 1827 0 1763 13 4 9 9 0 8 0 procpl 696 3995 0 3916 12 3 9 9 0 8 0 sosppl 168 14 0 14 3 3 0 1 0 8 0 sockpl 456 5422 0 5396 166 162 4 35 0 8 0 mcl64k 65536 59 0 59 6 6 0 1 0 8 0 mcl16k 16384 25 0 25 6 6 0 1 0 8 0 mcl12k 12288 55 0 55 4 4 0 1 0 8 0 mcl9k 9216 81 0 81 5 5 0 1 0 8 0 mcl8k 8192 96 0 96 4 4 0 1 0 8 0 mcl4k 4096 194 0 194 3 3 0 1 0 8 0 mcl2k2 2112 12 0 12 5 5 0 1 0 8 0 mcl2k 2048 79750 0 79676 40 29 11 27 0 8 0 mtagpl 96 390 0 303 9 4 5 7 0 8 0 mbufpl 256 137184 0 136914 95 70 25 76 0 8 0 bufpl 288 6164 0 151 430 0 430 430 0 8 0 anonpl 24 349173 0 333552 143 30 113 133 0 188 0 amapchunkpl 152 56040 0 55433 77 49 28 43 0 158 0 amappl16 200 4306 0 3695 57 24 33 43 0 8 0 amappl15 192 2 0 1 1 0 1 1 0 8 0 amappl14 184 170 0 156 2 1 1 2 0 8 0 amappl13 176 4 0 3 1 0 1 1 0 8 0 amappl12 168 452 0 450 1 0 1 1 0 8 0 amappl11 160 40 0 30 1 0 1 1 0 8 0 amappl10 152 32 0 23 1 0 1 1 0 8 0 amappl9 144 964 0 962 1 0 1 1 0 8 0 amappl8 136 172 0 118 2 0 2 2 0 8 0 amappl7 128 143 0 123 2 0 2 2 0 8 0 amappl6 120 170 0 160 2 1 1 2 0 8 0 amappl5 112 159 0 153 1 0 1 1 0 8 0 amappl4 104 524 0 497 2 1 1 2 0 8 0 amappl3 96 4643 0 4602 3 1 2 2 0 8 0 amappl2 88 2270 0 2205 3 0 3 3 0 8 0 amappl1 80 42589 0 41969 28 12 16 26 0 8 0 amappl 88 10736 0 10589 5 0 5 5 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 93 0 0 2 0 2 2 0 8 0 uaddrrnd 24 1805 0 1783 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1805 0 1783 1 0 1 1 0 8 0 vmmpekpl 168 18775 0 18732 3 0 3 3 0 8 0 vmmpepl 168 172054 0 169720 200 71 129 141 0 357 4 vmsppl 344 1804 0 1783 4 1 3 3 0 8 0 rwobjpl 24 50275 0 44212 40 2 38 38 0 8 0 pdppl 4096 3616 0 3566 202 145 57 70 0 8 7 pvpl 32 787763 0 767266 405 215 190 360 0 265 0 pmappl 216 1804 0 1783 3 1 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1065 0 333 23 1 22 22 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827a78d5) at panic+0x161 sys/kern/subr_prf.c:198 pool_p_free(ffffffff82c1e018,fffffd8067dd4f90) at pool_p_free+0x1d3 pool_gc_pages(0) at pool_gc_pages+0x215 sys/kern/subr_pool.c:1583 taskq_thread(ffffffff82ae87a0) at taskq_thread+0x9b sys/kern/kern_task.c:449 end trace frame: 0x0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827a78d5) at panic+0x161 sys/kern/subr_prf.c:198 pool_p_free(ffffffff82c1e018,fffffd8067dd4f90) at pool_p_free+0x1d3 pool_gc_pages(0) at pool_gc_pages+0x215 sys/kern/subr_pool.c:1583 taskq_thread(ffffffff82ae87a0) at taskq_thread+0x9b sys/kern/kern_task.c:449 end trace frame: 0x0, count: -5