kernel: protection fault trap, code=0 Stopped at pool_do_put+0x115: movq 0x8(%rbx),%rbx ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace pool_do_put(ffffffff82c1e018,fffffd8060f67ce8) at pool_do_put+0x115 pool_put(ffffffff82c1e018,fffffd8060f67ce8) at pool_put+0x67 sys/kern/subr_pool.c:799 soclose(fffffd8060f67ce8,0) at soclose+0x4aa sys/kern/uipc_socket.c:442 soo_close(fffffd806c84bbc8,ffff80002df0f0a8) at soo_close+0x40 fdrop(fffffd806c84bbc8,ffff80002df0f0a8) at fdrop+0xc7 sys/kern/kern_descrip.c:1274 closef(fffffd806c84bbc8,ffff80002df0f0a8) at closef+0x117 sys/kern/kern_descrip.c:1258 fdfree(ffff80002df0f0a8) at fdfree+0xe3 sys/kern/kern_descrip.c:1190 exit1(ffff80002df0f0a8,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:196 sys_exit(ffff80002df0f0a8,ffff800024b7e450,ffff800024b7e4a0) at sys_exit+0x16 sys/kern/kern_exit.c:89 syscall(ffff800024b7e520) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff80b0, count: -11 ddb> show registers rdi 0 rsi 0xfffffd8060f67793 rbp 0xffff800024b7e1c0 rbx 0x50158f48355b8316 rdx 0 rcx 0xfffffd80769491a0 rax 0xffff80002df0f0a8 r8 0 r9 0 r10 0xf567e7e1c09aa595 r11 0x36c4db8304b3458e r12 0xfffffd8060f67ce8 r13 0xff54dd489e7b4be8 r14 0xffffffff82c1e018 socket_pool r15 0xfffffd8060f67f90 rip 0xffffffff823672a5 pool_do_put+0x115 cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff800024b7e110 ss 0x10 pool_do_put+0x115: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=164808 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=84, nice=20 forw=0xffffffffffffffff, list=0xffff80002df0f360,0xffffffff82cf3498 process=0xffff80002decb3b8 user=0xffff800024b79000, vmspace=0xfffffd8069b5f2c0 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 15161 507242 92111 0 3 0x3 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 10221 6499K 7400K 78643K 24224 0 pcb 13 16K 17K 78643K 978 0 rtable 204 15K 16K 78643K 1755 0 ifaddr 79 22K 22K 78643K 422 0 sysctl 2 0K 2K 78643K 41 0 counters 28 17K 17K 78643K 179 0 ioctlops 0 0K 2K 78643K 644 0 iov 0 0K 32K 78643K 645 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1405 88K 88K 78643K 5595 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 31 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 201 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 11 37K 69K 78643K 3183 0 sigio 0 0K 0K 78643K 11 0 proc 61 59K 91K 78643K 1119 0 subproc 104 6K 6K 78643K 377 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 521 0 in_multi 81 5K 7K 78643K 441 0 ether_multi 1 0K 0K 78643K 25 0 mrt 1 0K 0K 78643K 4 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 1305 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 287 84K 99K 78643K 21546 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 143 0 NDP 13 0K 2K 78643K 158 0 temp 158 5772K 7808K 78643K 29005 0 kqueue 12 18K 24K 78643K 259 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 120 802 0 799 12 10 2 3 0 8 1 rtentry 112 394 0 305 5 2 3 4 0 8 0 unpcb 144 4284 0 4268 39 37 2 10 0 8 1 syncache 296 49 0 49 16 15 1 1 0 8 1 sackhl 24 3 0 3 3 3 0 1 0 8 0 tcpqe 32 89 0 89 7 7 0 1 0 8 0 tcpcb 776 2416 0 2408 90 82 8 14 0 8 7 arp 88 62 0 45 1 0 1 1 0 8 0 ipq 40 5 0 5 2 2 0 1 0 8 0 ipqe 40 12 0 12 2 2 0 1 0 8 0 inpcb 336 5073 0 5062 116 109 7 16 0 8 5 nd6 48 93 0 74 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 1 0 1 0 8 0 kcovpl 48 29 0 21 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1160 91 0 91 8 8 0 1 0 8 0 pppxif 1360 1 0 1 1 1 0 1 0 8 0 pfstscr 40 6 0 4 1 0 1 1 0 8 0 pfanchor 1280 497 0 126 37 4 33 37 0 8 0 pfqueue 264 2 0 2 1 1 0 1 0 8 0 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 12 0 8 1 0 1 1 0 8 0 pfstate 352 6 0 4 1 0 1 1 0 8 0 art_heap8 4096 3 0 2 3 2 1 2 0 8 0 art_heap4 256 1766 0 1372 38 13 25 29 0 8 0 art_table 32 1769 0 1374 4 0 4 4 0 8 0 art_node 16 384 0 306 1 0 1 1 0 8 0 sysvmsgpl 40 30 0 10 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 196 0 186 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 5713 0 4278 91 0 91 91 0 8 0 ffsino 240 5713 0 4278 85 0 85 85 0 8 0 nchpl 144 9789 0 8149 63 1 62 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 40677 0 40676 9 8 1 3 0 8 0 vmpool 664 18 0 18 4 4 0 1 0 8 0 kstatmem 264 190 0 164 2 0 2 2 0 8 0 scxspl 216 42033 0 42033 25 23 2 8 0 8 2 plimitpl 152 640 0 625 1 0 1 1 0 8 0 sigapl 424 3456 0 3396 9 1 8 8 0 8 0 futexpl 64 36267 0 36267 10 9 1 1 0 8 1 knotepl 120 54548 0 54466 50 39 11 11 0 8 8 kqueuepl 184 620 0 612 5 4 1 4 0 8 0 pipepl 288 1046 0 1018 24 21 3 9 0 8 0 fdescpl 432 3418 0 3396 4 0 4 4 0 8 0 filepl 120 31536 0 31297 86 73 13 15 0 8 5 lockfpl 104 595 0 593 1 0 1 1 0 8 0 lockfspl 48 206 0 204 1 0 1 1 0 8 0 sessionpl 144 44 0 28 1 0 1 1 0 8 0 pgrppl 48 530 0 514 1 0 1 1 0 8 0 ucredpl 104 3794 0 3784 1 0 1 1 0 8 0 zombiepl 144 3397 0 3396 5 4 1 1 0 8 0 processpl 1008 3456 0 3396 11 2 9 9 0 8 0 procpl 696 7974 0 7896 14 5 9 10 0 8 0 sosppl 168 44 0 44 12 12 0 1 0 8 0 sockpl 456 10164 0 10133 316 303 13 34 0 8 8 sockpl: pool(0xffffffff82c1e018:sockpl): free list modified: page 0xfffffd8060f67000; item ordinal 0; addr 0xfffffd8060f67793 (p 0xfffffd8060f67000); offset 0x0=0x8d32b0a6578ac15e pool(sockpl): free list modified: page 0xfffffd8060f67000; item ordinal 0; addr 0xfffffd8060f67793 (p 0xfffffd8060f67000); offset 0x0=0xaf4152de sockpl: pool(0xffffffff82c1e018:sockpl): page inconsistency: page 0xfffffd8060f67000; item ordinal 1; addr 0x50158f48355b8316 mcl64k 65536 140 0 140 20 20 0 1 0 8 0 mcl16k 16384 82 0 82 18 17 1 1 0 8 1 mcl12k 12288 149 0 149 24 23 1 1 0 8 1 mcl9k 9216 42 0 42 15 15 0 1 0 8 0 mcl8k 8192 354 0 354 25 24 1 1 0 8 1 mcl4k 4096 422 0 422 15 14 1 1 0 8 1 mcl2k2 2112 24 0 24 10 9 1 1 0 8 1 mcl2k 2048 85018 0 84863 52 31 21 30 0 8 0 mtagpl 96 3154 0 1862 47 15 32 32 0 8 0 mbufpl 256 192932 0 191418 712 567 145 158 0 8 45 bufpl 288 9465 0 3071 458 1 457 458 0 8 0 anonpl 24 689472 0 671977 150 33 117 127 0 188 0 amapchunkpl 152 62304 0 61618 74 44 30 41 0 158 1 amappl16 200 6471 0 5858 51 17 34 39 0 8 0 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 235 0 223 2 1 1 2 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 657 0 654 1 0 1 1 0 8 0 amappl11 160 47 0 37 1 0 1 1 0 8 0 amappl10 152 59 0 48 1 0 1 1 0 8 0 amappl9 144 987 0 986 1 0 1 1 0 8 0 amappl8 136 239 0 176 3 0 3 3 0 8 0 amappl7 128 194 0 169 2 0 2 2 0 8 0 amappl6 120 261 0 251 2 1 1 2 0 8 0 amappl5 112 246 0 240 1 0 1 1 0 8 0 amappl4 104 695 0 668 2 0 2 2 0 8 0 amappl3 96 9144 0 9098 2 0 2 2 0 8 0 amappl2 88 4021 0 3956 3 1 2 3 0 8 0 amappl1 80 78310 0 77682 31 14 17 26 0 8 0 amappl 88 20791 0 20632 6 1 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 3436 0 3414 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3436 0 3414 1 0 1 1 0 8 0 vmmpekpl 168 30534 0 30479 3 0 3 3 0 8 0 vmmpepl 168 325024 0 322651 256 126 130 161 0 357 2 vmsppl 344 3435 0 3414 3 0 3 3 0 8 0 rwobjpl 24 88210 0 80502 48 0 48 48 0 8 0 pdppl 4096 6878 0 6828 405 343 62 66 0 8 12 pvpl 32 1495977 0 1473343 384 182 202 361 0 265 3 pmappl 216 3435 0 3414 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2079 0 1174 27 0 27 27 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pool_do_put(ffffffff82c1e018,fffffd8060f67ce8) at pool_do_put+0x115 pool_put(ffffffff82c1e018,fffffd8060f67ce8) at pool_put+0x67 sys/kern/subr_pool.c:799 soclose(fffffd8060f67ce8,0) at soclose+0x4aa sys/kern/uipc_socket.c:442 soo_close(fffffd806c84bbc8,ffff80002df0f0a8) at soo_close+0x40 fdrop(fffffd806c84bbc8,ffff80002df0f0a8) at fdrop+0xc7 sys/kern/kern_descrip.c:1274 closef(fffffd806c84bbc8,ffff80002df0f0a8) at closef+0x117 sys/kern/kern_descrip.c:1258 fdfree(ffff80002df0f0a8) at fdfree+0xe3 sys/kern/kern_descrip.c:1190 exit1(ffff80002df0f0a8,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:196 sys_exit(ffff80002df0f0a8,ffff800024b7e450,ffff800024b7e4a0) at sys_exit+0x16 sys/kern/kern_exit.c:89 syscall(ffff800024b7e520) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff80b0, count: -11 ddb> machine ddbcpu 1 No such command ddb> trace pool_do_put(ffffffff82c1e018,fffffd8060f67ce8) at pool_do_put+0x115 pool_put(ffffffff82c1e018,fffffd8060f67ce8) at pool_put+0x67 sys/kern/subr_pool.c:799 soclose(fffffd8060f67ce8,0) at soclose+0x4aa sys/kern/uipc_socket.c:442 soo_close(fffffd806c84bbc8,ffff80002df0f0a8) at soo_close+0x40 fdrop(fffffd806c84bbc8,ffff80002df0f0a8) at fdrop+0xc7 sys/kern/kern_descrip.c:1274 closef(fffffd806c84bbc8,ffff80002df0f0a8) at closef+0x117 sys/kern/kern_descrip.c:1258 fdfree(ffff80002df0f0a8) at fdfree+0xe3 sys/kern/kern_descrip.c:1190 exit1(ffff80002df0f0a8,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:196 sys_exit(ffff80002df0f0a8,ffff800024b7e450,ffff800024b7e4a0) at sys_exit+0x16 sys/kern/kern_exit.c:89 syscall(ffff800024b7e520) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff80b0, count: -11