kernel: protection fault trap, code=0 Stopped at pool_do_put+0x115: movq 0x8(%rbx),%rbx ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace pool_do_put(ffffffff82dc1f50,fffffd8066224d88) at pool_do_put+0x115 pool_put(ffffffff82dc1f50,fffffd8066224d88) at pool_put+0x8b sys/kern/subr_pool.c:799 soclose(fffffd8066224d88,0) at soclose+0x4ba sys/kern/uipc_socket.c:432 soo_close(fffffd80645feab0,ffff8000212c90a8) at soo_close+0x40 fdrop(fffffd80645feab0,ffff8000212c90a8) at fdrop+0xc7 sys/kern/kern_descrip.c:1274 closef(fffffd80645feab0,ffff8000212c90a8) at closef+0x11c sys/kern/kern_descrip.c:1258 fdfree(ffff8000212c90a8) at fdfree+0xe4 sys/kern/kern_descrip.c:1190 exit1(ffff8000212c90a8,0,0,1) at exit1+0x37d sys/kern/kern_exit.c:196 sys_exit(ffff8000212c90a8,ffff8000212b5320,ffff8000212b5370) at sys_exit+0x16 sys/kern/kern_exit.c:89 syscall(ffff8000212b53f0) at syscall+0x555 mi_syscall sys/sys/syscall_mi.h:113 [inline] syscall(ffff8000212b53f0) at syscall+0x555 sys/arch/amd64/amd64/trap.c:626 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffb7d0, count: -11 ddb{0}> show registers rdi 0 rsi 0xfffffd8066224400 rbp 0xffff8000212b5090 rbx 0xa2485f67ee4bf4cd rdx 0 rcx 0 rax 0xffff8000212c90a8 r8 0 r9 0 r10 0x1a43971a0c846138 r11 0x4d57e6ed154ea694 r12 0xfffffd8066224d88 r13 0xff6b097e706e34c r14 0xffffffff82dc1f50 socket_pool r15 0xfffffd8066224f90 rip 0xffffffff81563405 pool_do_put+0x115 cs 0x8 rflags 0x10216 __ALIGN_SIZE+0xf216 rsp 0xffff8000212b4fe0 ss 0x10 pool_do_put+0x115: movq 0x8(%rbx),%rbx ddb{0}> show proc PROC (syz-executor.6) pid=218987 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff800021228848,0xffffffff82c5b330 process=0xffff800027bb1d68 user=0xffff8000212b0000, vmspace=0xfffffd807effacf0 estcpu=33, cpticks=0, pctcpu=0.1 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 24256 431808 64120 0 3 0x82 piperd syz-executor.3 84609 330798 64120 0 3 0x82 piperd syz-executor.0 84647 348839 64120 0 3 0x82 piperd syz-executor.1 28018 475515 64120 0 3 0x82 piperd syz-executor.2 84301 512598 64120 0 3 0x82 nanoslp syz-executor.6 38258 119416 64120 0 3 0x3 kernel: protection fault trap, code=0 Faulted in DDB; continuing... ddb{0}> show all locks ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10225 6477K 7966K 78643K 16876 0 pcb 13 12K 14K 78643K 2241 0 rtable 166 6K 8K 78643K 802 0 ifaddr 74 24K 26K 78643K 334 0 sysctl 2 0K 0K 78643K 2 0 counters 58 35K 36K 78643K 208 0 ioctlops 0 0K 4K 78643K 2049 0 iov 0 0K 32K 78643K 382 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1522 95K 95K 78643K 4005 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 36 0 VM map 2 1K 1K 78643K 2 0 sem 11 1K 1K 78643K 14 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 11 37K 85K 78643K 4727 0 sigio 0 0K 0K 78643K 288 0 proc 70 91K 115K 78643K 900 0 subproc 104 6K 6K 78643K 208 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 327 0 in_multi 70 4K 6K 78643K 245 0 ether_multi 2 0K 0K 78643K 101 0 mrt 2 0K 0K 78643K 723 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 169 758K 758K 78643K 169 0 exec 0 0K 1K 78643K 1023 0 pfkey data 0 0K 0K 78643K 2 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 322 86K 87K 78643K 34348 0 UVM aobj 131 4K 4K 78643K 131 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 104 0 NDP 13 0K 1K 78643K 103 0 temp 133 5778K 6802K 78643K 27721 0 kqueue 12 18K 26K 78643K 273 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 381 0 378 8 7 1 5 0 8 0 rtentry 112 241 0 171 4 0 4 4 0 8 0 unpcb 144 5634 0 5592 53 47 6 9 0 8 3 syncache 296 15 0 15 6 6 0 1 0 8 0 tcpqe 32 426 0 426 4 4 0 1 0 8 0 tcpcb 776 2414 0 2410 69 62 7 8 0 8 6 arp 120 37 0 23 1 0 1 1 0 8 0 inpcb 368 6183 0 6176 92 85 7 19 0 8 6 nd6 48 53 0 39 1 0 1 1 0 8 0 pkpcb 40 42 0 42 3 3 0 1 0 8 0 kcovpl 48 16 0 8 1 0 1 1 0 8 0 mppekey 1024 4 0 4 2 2 0 1 0 8 0 ppxss 1256 43 0 43 10 9 1 1 0 8 1 pppxif 1456 19 0 19 6 6 0 1 0 8 0 pfstscr 40 10 0 9 2 1 1 1 0 8 0 pffrag 232 4 0 4 3 3 0 1 0 482 0 pffrnode 88 4 0 4 3 3 0 1 0 8 0 pffrent 40 40 0 40 3 3 0 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfanchor 1280 273 0 137 16 3 13 16 0 8 0 pfstitem 24 39 0 36 1 0 1 1 0 8 0 pfstkey 128 45 0 42 1 0 1 1 0 8 0 pfstate 384 42 0 39 3 2 1 3 0 8 0 pfrule 1344 21 0 20 2 1 1 2 0 8 0 rttmr 136 6 0 6 2 2 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1040 0 710 36 14 22 29 0 8 0 art_table 32 1041 0 710 4 0 4 4 0 8 0 art_node 16 240 0 178 1 0 1 1 0 8 0 sysvmsgpl 40 138 0 101 1 0 1 1 0 8 0 semapl 112 9 0 0 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 7162 0 5714 91 0 91 91 0 8 0 ffsino 272 7162 0 5714 97 0 97 97 0 8 0 nchpl 144 13724 0 12091 63 0 63 63 0 8 0 uvmvnodes 80 9503 0 0 194 0 194 194 0 8 0 vnodes 216 9503 0 0 528 0 528 528 0 8 0 namei 1024 48645 0 48645 3 2 1 2 0 8 1 percpumem 16 117 0 75 1 0 1 1 0 8 0 vmpool 696 17 0 17 3 3 0 1 0 8 0 kstatmem 264 138 0 112 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 216 42924 0 42924 21 18 3 8 0 8 3 plimitpl 152 662 0 646 1 0 1 1 0 8 0 sigapl 424 5040 0 4977 9 1 8 8 0 8 0 futexpl 64 39748 0 39748 3 2 1 1 0 8 1 knotepl 120 544 0 0 17 0 17 17 0 8 0 kqueuepl 216 912 0 904 20 19 1 8 0 8 0 pipepl 320 863 0 835 26 23 3 8 0 8 0 fdescpl 496 5002 0 4978 5 1 4 5 0 8 0 filepl 152 36295 0 36029 86 71 15 22 0 8 4 lockfpl 104 651 0 649 1 0 1 1 0 8 0 lockfspl 48 254 0 252 1 0 1 1 0 8 0 sessionpl 144 32 0 15 1 0 1 1 0 8 0 pgrppl 48 178 0 161 1 0 1 1 0 8 0 ucredpl 104 2713 0 2701 1 0 1 1 0 8 0 zombiepl 144 4979 0 4977 2 1 1 1 0 8 0 processpl 1072 5040 0 4977 5 0 5 5 0 8 0 procpl 696 13676 0 13597 19 9 10 10 0 8 1 srpgc 96 12 0 12 6 6 0 1 0 8 0 sosppl 168 39 0 39 5 5 0 1 0 8 0 sockpl 488 12246 0 12193 245 233 12 29 0 8 3 sockpl: pool(0xffffffff82dc1f50:sockpl): free list modified: page 0xfffffd8066224000; item ordinal 4; addr 0xfffffd80662249bb (p 0xfffffd8066224000); offset 0x0=0x24a37c3bea29b73d pool(sockpl): free list modified: page 0xfffffd8066224000; item ordinal 4; addr 0xfffffd80662249bb (p 0xfffffd8066224000); offset 0x0=0xadbeefde sockpl: pool(0xffffffff82dc1f50:sockpl): page inconsistency: page 0xfffffd8066224000; item ordinal 5; addr 0xa2485f67ee4bf4cd mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 17 0 0 3 1 2 3 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 10 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 25 0 0 3 0 3 3 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 326 0 0 37 5 32 37 0 8 0 mtagpl 96 345 0 0 7 0 7 7 0 8 0 mbufpl 256 1883 0 0 117 0 117 117 0 8 0 bufpl 288 11393 0 5071 452 0 452 452 0 8 0 anonpl 24 1014018 0 997865 199 86 113 183 0 186 0 amapchunkpl 152 96385 0 95670 64 27 37 62 0 158 0 amappl16 200 8305 0 7820 47 20 27 32 0 8 0 amappl15 192 30 0 28 1 0 1 1 0 8 0 amappl14 184 189 0 176 2 1 1 2 0 8 0 amappl13 176 6 0 5 1 0 1 1 0 8 0 amappl12 168 513 0 510 1 0 1 1 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 40 0 30 1 0 1 1 0 8 0 amappl9 144 981 0 981 10 10 0 1 0 8 0 amappl8 136 296 0 221 3 0 3 3 0 8 0 amappl7 128 172 0 146 2 0 2 2 0 8 0 amappl6 120 233 0 217 1 0 1 1 0 8 0 amappl5 112 223 0 213 1 0 1 1 0 8 0 amappl4 104 635 0 598 2 0 2 2 0 8 0 amappl3 96 14661 0 14614 2 0 2 2 0 8 0 amappl2 88 5504 0 5428 3 1 2 3 0 8 0 amappl1 80 116034 0 115331 24 6 18 23 0 8 0 amappl 88 33678 0 33497 6 0 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 5019 0 4995 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5019 0 4995 1 0 1 1 0 8 0 vmmpekpl 168 41293 0 41211 4 0 4 4 0 8 0 vmmpepl 168 457370 0 454934 192 56 136 156 0 357 0 vmsppl 368 5018 0 4995 4 1 3 4 0 8 0 rwobjpl 56 131257 0 119974 168 7 161 161 0 8 0 pdppl 4096 10045 0 9990 325 256 69 79 0 8 14 pvpl 32 2014023 0 1992413 379 181 198 323 0 265 0 pmappl 248 5018 0 4995 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1285 0 377 27 0 27 27 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pool_do_put(ffffffff82dc1f50,fffffd8066224d88) at pool_do_put+0x115 pool_put(ffffffff82dc1f50,fffffd8066224d88) at pool_put+0x8b sys/kern/subr_pool.c:799 soclose(fffffd8066224d88,0) at soclose+0x4ba sys/kern/uipc_socket.c:432 soo_close(fffffd80645feab0,ffff8000212c90a8) at soo_close+0x40 fdrop(fffffd80645feab0,ffff8000212c90a8) at fdrop+0xc7 sys/kern/kern_descrip.c:1274 closef(fffffd80645feab0,ffff8000212c90a8) at closef+0x11c sys/kern/kern_descrip.c:1258 fdfree(ffff8000212c90a8) at fdfree+0xe4 sys/kern/kern_descrip.c:1190 exit1(ffff8000212c90a8,0,0,1) at exit1+0x37d sys/kern/kern_exit.c:196 sys_exit(ffff8000212c90a8,ffff8000212b5320,ffff8000212b5370) at sys_exit+0x16 sys/kern/kern_exit.c:89 syscall(ffff8000212b53f0) at syscall+0x555 mi_syscall sys/sys/syscall_mi.h:113 [inline] syscall(ffff8000212b53f0) at syscall+0x555 sys/arch/amd64/amd64/trap.c:626 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffb7d0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82dc4530) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82dc4530) at __mp_lock+0x122 sys/kern/kern_lock.c:147 reaper(ffff8000211bcae8) at reaper+0x160 sys/kern/kern_exit.c:436 end trace frame: 0x0, count: -5