òòòkernel: 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(ffffffff82d03460,fffffd807ce052f8) at pool_do_put+0x115 pool_put(ffffffff82d03460,fffffd807ce052f8) at pool_put+0x6b sys/kern/subr_pool.c:799 soclose(fffffd807ce052f8,0) at soclose+0x4ba sys/kern/uipc_socket.c:440 soo_close(fffffd8066df2708,ffff800021702340) at soo_close+0x44 fdrop(fffffd8066df2708,ffff800021702340) at fdrop+0xcb sys/kern/kern_descrip.c:1274 closef(fffffd8066df2708,ffff800021702340) at closef+0x11b sys/kern/kern_descrip.c:1258 fdfree(ffff800021702340) at fdfree+0xf3 sys/kern/kern_descrip.c:1190 exit1(ffff800021702340,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:197 sys_exit(ffff800021702340,ffff80002e8bfef0,ffff80002e8bff40) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e8bffc0) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7cf4872297c0, count: -11 ddb> show registers rdi 0 rsi 0xfffffd807ce05130 rbp 0xffff80002e8bfc60 rbx 0xec2c84a85fde138e rdx 0 rcx 0xfffffd8078cd7ce0 rax 0xffff800021702340 r8 0 r9 0 r10 0xb33e466dcf2ddb3c r11 0x5506ac6e8b4275d4 r12 0xfffffd807ce052f8 r13 0x43922914320a87c0 r14 0xffffffff82d03460 socket_pool r15 0xfffffd807ce05f90 rip 0xffffffff81b946f5 pool_do_put+0x115 cs 0x8 rflags 0x10216 __ALIGN_SIZE+0xf216 rsp 0xffff80002e8bfbb0 ss 0x10 pool_do_put+0x115: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.4) pid=484669 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000fffed078,0xffffffff82cb42e8 process=0xffff80002e84efc8 user=0xffff80002e8bb000, vmspace=0xfffffd8069cbf010 estcpu=36, cpticks=21, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 72366 507366 0 0 3 0x14200 acct acct 28484 506851 0 0 3 0x14280 nfsidl nfsio 34324 163529 0 0 3 0x14280 nfsidl nfsio 56464 211606 0 0 3 0x14280 nfsidl nfsio 72883 207718 0 0 3 0x14280 nfsidl nfsio 81740 137904 0 0 3 0x14280 nfsidl nfsio 32287 198634 0 0 3 0x14280 nfsidl nfsio 30852 246146 0 0 3 0x14280 nfsidl nfsio 11585 15445 0 0 3 0x14280 nfsidl nfsio 79531 495196 0 0 3 0x14280 nfsidl nfsio 61855 323567 0 0 3 0x14280 nfsidl nfsio 39853 49028 0 0 3 0x14280 nfsidl nfsio 81697 154882 0 0 3 0x14280 nfsidl nfsio 93315 29549 0 0 3 0x14280 nfsidl nfsio 66376 178685 0 0 3 0x14280 nfsidl nfsio 12509 171516 0 0 3 0x14280 nfsidl nfsio 18311 165973 0 0 3 0x14280 nfsidl nfsio 56778 257583 0 0 3 0x14280 nfsidl nfsio 40767 467188 0 0 3 0x14280 nfsidl nfsio 42850 103579 0 0 3 0x14280 nfsidl nfsio 58038 474452 0 0 3 0x14280 nfsidl nfsio 96752 401374 33907 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 10180 6430K 8980K 78643K 61798 0 pcb 13 13K 15K 78643K 510 0 rtable 245 7K 7K 78643K 1238 0 pf 32 9K 10K 78643K 356 0 ifaddr 44 13K 14K 78643K 285 0 ifgroup 55 2K 2K 78643K 599 0 sysctl 3 1K 1K 78643K 7 0 counters 29 17K 17K 78643K 191 0 ioctlops 0 0K 2K 78643K 412 0 iov 0 0K 24K 78643K 1246 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1608 101K 101K 78643K 18691 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 297 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 1229 0 dirhash 6 1K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 11 37K 73K 78643K 15125 0 sigio 2 0K 0K 78643K 487 0 proc 61 59K 83K 78643K 1920 0 subproc 104 6K 6K 78643K 419 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 395 0 in_multi 99 7K 7K 78643K 424 0 ether_multi 1 0K 0K 78643K 1 0 mrt 1 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 121 546K 546K 78643K 121 0 exec 0 0K 1K 78643K 3410 0 pfkey data 0 0K 0K 78643K 39 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 378 97K 99K 78643K 145516 0 UVM aobj 131 8K 8K 78643K 133 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 352 0 NDP 12 0K 2K 78643K 236 0 temp 80 5862K 6496K 78643K 130164 0 kqueue 12 18K 28K 78643K 914 0 SYN cache 2 16K 24K 78643K 3 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 400 0 397 5 4 1 3 0 8 0 rtentry 112 381 0 267 4 0 4 4 0 8 0 unpcb 144 14936 0 14922 188 185 3 11 0 8 2 syncache 296 29 0 29 10 10 0 1 0 8 0 sackhl 24 2 0 2 2 2 0 1 0 8 0 tcpqe 32 140 0 140 3 3 0 1 0 8 0 tcpcb 808 2390 0 2386 103 102 1 14 0 8 0 arp 88 64 0 46 1 0 1 1 0 8 0 ipq 40 22 0 22 8 8 0 1 0 8 0 ipqe 40 60 0 60 8 8 0 1 0 8 0 inpcb 336 5746 0 5739 173 172 1 9 0 8 0 nd6 104 110 0 82 1 0 1 1 0 8 0 pkpcb 40 89 0 89 7 7 0 1 0 8 0 kcovpl 48 31 0 23 1 0 1 1 0 8 0 ppxss 1160 52 0 52 14 14 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1558 0 1083 31 1 30 30 0 8 0 art_table 32 1559 0 1083 4 0 4 4 0 8 0 art_node 16 380 0 276 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 5 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 1227 0 1217 1 0 1 1 0 8 0 shmpl 112 130 0 2 4 0 4 4 0 8 0 dirhash 1024 17 0 13 3 1 2 3 0 8 0 dino2pl 256 21582 0 20053 96 0 96 96 0 8 0 ffsino 240 21582 0 20053 91 0 91 91 0 8 0 nchpl 144 42743 0 42274 63 41 22 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 156607 0 156605 8 7 1 3 0 8 0 kstatmem 264 348 0 324 2 0 2 2 0 8 0 scxspl 216 120139 0 120139 26 25 1 8 0 8 1 plimitpl 152 499 0 484 1 0 1 1 0 8 0 sigapl 424 15865 0 15802 10 2 8 8 0 8 0 futexpl 64 137525 0 137525 1 0 1 1 0 8 1 knotepl 120 125365 0 125285 6 3 3 5 0 8 0 kqueuepl 184 2283 0 2275 33 32 1 7 0 8 0 pipepl 288 3784 0 3756 95 92 3 8 0 8 0 fdescpl 432 15366 0 15344 5 1 4 4 0 8 0 filepl 120 98153 0 97916 178 168 10 20 0 8 1 lockfpl 104 27026 0 27023 42 41 1 4 0 8 0 lockfspl 48 11531 0 11528 5 4 1 2 0 8 0 sessionpl 144 50 0 34 1 0 1 1 0 8 0 pgrppl 48 114 0 98 1 0 1 1 0 8 0 ucredpl 104 13291 0 13281 1 0 1 1 0 8 0 zombiepl 144 15806 0 15802 1 0 1 1 0 8 0 processpl 1008 15865 0 15802 14 5 9 9 0 8 0 procpl 696 41359 0 41283 30 20 10 11 0 8 1 sosppl 168 80 0 80 18 18 0 1 0 8 0 sockpl 456 21184 0 21159 778 768 10 37 0 8 6 sockpl: pool(0xffffffff82d03460:sockpl): free list modified: page 0xfffffd807ce05000; item ordinal 1; addr 0xfffffd807ce0568b (p 0xfffffd807ce05000); offset 0x0=0xeaddd8f14335f543 pool(sockpl): free list modified: page 0xfffffd807ce05000; item ordinal 1; addr 0xfffffd807ce0568b (p 0xfffffd807ce05000); offset 0x0=0xafbeadde sockpl: pool(0xffffffff82d03460:sockpl): page inconsistency: page 0xfffffd807ce05000; item ordinal 2; addr 0xec2c84a85fde138e mcl64k 65536 513 0 513 29 28 1 1 0 8 1 mcl16k 16384 247 0 247 34 34 0 1 0 8 0 mcl12k 12288 553 0 553 32 31 1 1 0 8 1 mcl9k 9216 315 0 315 43 42 1 1 0 8 1 mcl8k 8192 1095 0 1095 29 28 1 1 0 8 1 mcl4k 4096 1489 0 1489 12 11 1 1 0 8 1 mcl2k2 2112 110 0 110 37 37 0 1 0 8 0 mcl2k 2048 86136 0 86096 72 65 7 28 0 8 1 mtagpl 96 8582 0 8500 46 38 8 41 0 8 0 mbufpl 256 269050 0 268860 706 666 40 159 0 8 1 bufpl 288 28048 0 21666 457 0 457 457 0 8 0 anonpl 24 1407752 0 1396253 228 131 97 100 0 188 12 amapchunkpl 152 456803 0 456112 115 79 36 40 0 158 1 amappl16 200 28385 0 27970 175 144 31 36 0 8 8 amappl15 192 14 0 13 1 0 1 1 0 8 0 amappl14 184 226 0 214 2 1 1 2 0 8 0 amappl13 176 16 0 15 1 0 1 1 0 8 0 amappl12 168 16347 0 16321 2 0 2 2 0 8 0 amappl11 160 54 0 44 1 0 1 1 0 8 0 amappl10 152 50 0 40 1 0 1 1 0 8 0 amappl9 144 299 0 298 2 1 1 2 0 8 0 amappl8 136 651 0 505 6 0 6 6 0 8 0 amappl7 128 109 0 91 1 0 1 1 0 8 0 amappl6 120 500 0 480 2 1 1 2 0 8 0 amappl5 112 469 0 463 1 0 1 1 0 8 0 amappl4 104 1064 0 1021 2 0 2 2 0 8 0 amappl3 96 90813 0 90753 5 2 3 4 0 8 0 amappl2 88 15945 0 15889 4 2 2 3 0 8 0 amappl1 80 64335 0 63839 22 10 12 22 0 8 0 amappl 88 144533 0 144333 9 2 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 72 132 0 2 3 0 3 3 0 8 0 uaddrrnd 24 15366 0 15344 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 15366 0 15344 1 0 1 1 0 8 0 vmmpekpl 168 118594 0 118534 5 2 3 4 0 8 0 vmmpepl 168 896872 0 894806 381 265 116 130 0 357 2 vmsppl 368 15365 0 15344 3 0 3 3 0 8 0 rwobjpl 24 216735 0 209210 49 1 48 48 0 8 0 pdppl 4096 30739 0 30688 935 872 63 69 0 8 12 pvpl 32 3802402 0 3785905 505 330 175 333 0 265 19 pmappl 216 15365 0 15344 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2881 0 2081 28 1 27 27 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pool_do_put(ffffffff82d03460,fffffd807ce052f8) at pool_do_put+0x115 pool_put(ffffffff82d03460,fffffd807ce052f8) at pool_put+0x6b sys/kern/subr_pool.c:799 soclose(fffffd807ce052f8,0) at soclose+0x4ba sys/kern/uipc_socket.c:440 soo_close(fffffd8066df2708,ffff800021702340) at soo_close+0x44 fdrop(fffffd8066df2708,ffff800021702340) at fdrop+0xcb sys/kern/kern_descrip.c:1274 closef(fffffd8066df2708,ffff800021702340) at closef+0x11b sys/kern/kern_descrip.c:1258 fdfree(ffff800021702340) at fdfree+0xf3 sys/kern/kern_descrip.c:1190 exit1(ffff800021702340,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:197 sys_exit(ffff800021702340,ffff80002e8bfef0,ffff80002e8bff40) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e8bffc0) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7cf4872297c0, count: -11 ddb> machine ddbcpu 1 No such command ddb> trace pool_do_put(ffffffff82d03460,fffffd807ce052f8) at pool_do_put+0x115 pool_put(ffffffff82d03460,fffffd807ce052f8) at pool_put+0x6b sys/kern/subr_pool.c:799 soclose(fffffd807ce052f8,0) at soclose+0x4ba sys/kern/uipc_socket.c:440 soo_close(fffffd8066df2708,ffff800021702340) at soo_close+0x44 fdrop(fffffd8066df2708,ffff800021702340) at fdrop+0xcb sys/kern/kern_descrip.c:1274 closef(fffffd8066df2708,ffff800021702340) at closef+0x11b sys/kern/kern_descrip.c:1258 fdfree(ffff800021702340) at fdfree+0xf3 sys/kern/kern_descrip.c:1190 exit1(ffff800021702340,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:197 sys_exit(ffff800021702340,ffff80002e8bfef0,ffff80002e8bff40) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e8bffc0) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7cf4872297c0, count: -11