kernel: protection fault trap, code=0 Stopped at lf_advlock+0x2f1: incl 0x28(%r12) ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace lf_advlock(ffff800001462120,0,fffffd806c6bc5b0,2,ffff80002a881960,20) at lf_advlock+0x2f1 ls_ref sys/kern/vfs_lockf.c:138 [inline] lf_advlock(ffff800001462120,0,fffffd806c6bc5b0,2,ffff80002a881960,20) at lf_advlock+0x2f1 sys/kern/vfs_lockf.c:278 VOP_ADVLOCK(fffffd806d412528,fffffd806c6bc5b0,2,ffff80002a881960,20) at VOP_ADVLOCK+0x87 sys/kern/vfs_vops.c:623 vn_closefile(fffffd806c6bc5b0,ffff80002a7de570) at vn_closefile+0xac sys/kern/vfs_vnops.c:615 fdrop(fffffd806c6bc5b0,ffff80002a7de570) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c6bc5b0,ffff80002a7de570) at closef+0x190 sys/kern/kern_descrip.c:1264 fdfree(ffff80002a7de570) at fdfree+0x115 sys/kern/kern_descrip.c:1195 exit1(ffff80002a7de570,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a7de570,ffff80002a881c40,ffff80002a881b90) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a881c40) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a881c40) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x783517ff04c0, count: -10 ddb> show registers rdi 0xffff80002a7de574 rsi 0xffff80002a7de574 rbp 0xffff80002a8818b0 rbx 0 rdx 0 rcx 0xffffffff837dcff0 cpu_info_full_primary+0x1ff0 rax 0xffff80002a7de570 r8 0xffffffffffffffff r9 0 r10 0x58b7b457b273614d r11 0x98a69088ca52f25e r12 0xdead4110dead4110 r13 0x2 r14 0xffff80002a881960 r15 0x1 rip 0xffffffff82524de1 lf_advlock+0x2f1 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a881820 ss 0x10 lf_advlock+0x2f1: incl 0x28(%r12) ddb> show proc PROC (syz-executor) tid=159912 pid=72370 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=82, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a7de570 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80002a7df500,0xffff80002a7c1500 process=0xffff80003811c020 user=0xffff80002a87c000, vmspace=0xfffffd80719f08a8 estcpu=32, cpticks=51, pctcpu=0.45, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 43962 197414 85666 0 2 0 syz-executor 43962 318693 85666 0 2 0x4000000 syz-executor 43962 327918 85666 0 3 0x4000000 vmmaplk syz-executor 81477 12261 74441 0 2 0 syz-executor 81477 142406 74441 0 2 0x4000000 syz-executor 81477 293235 74441 0 2 0x4000000 syz-executor 81477 312493 74441 0 2 0x4000000 syz-executor 7633 467887 92712 0 2 0 syz-executor 7633 146264 92712 0 2 0x4000000 syz-executor 26111 436767 32449 0 2 0 syz-executor 26111 497302 32449 0 3 0x4000080 fsleep syz-executor 26111 270179 32449 0 3 0x4000080 fsleep syz-executor 26111 35418 32449 0 3 0x4000080 fsleep syz-executor 889 98574 0 0 3 0x14200 acct acct 90717 439258 44854 0 3 0x2 lockflk syz-executor 32449 513803 44854 0 3 0x82 nanoslp syz-executor 74810 166947 0 0 3 0x14280 nfsidl nfsio 52089 359427 0 0 3 0x14280 nfsidl nfsio 61160 228644 0 0 3 0x14280 nfsidl nfsio 57719 471840 0 0 3 0x14280 nfsidl nfsio 65870 23289 0 0 3 0x14280 nfsidl nfsio 72346 404432 0 0 3 0x14280 nfsidl nfsio 35086 425518 0 0 3 0x14280 nfsidl nfsio 34939 15698 0 0 3 0x14280 nfsidl nfsio 83488 226082 0 0 3 0x14280 nfsidl nfsio 74174 236486 0 0 3 0x14280 nfsidl nfsio 45919 101704 0 0 3 0x14280 nfsidl nfsio 92163 319930 0 0 3 0x14280 nfsidl nfsio 77739 273287 0 0 3 0x14280 nfsidl nfsio 32813 79068 0 0 3 0x14280 nfsidl nfsio 59704 118636 0 0 3 0x14280 nfsidl nfsio 96749 88425 0 0 3 0x14280 nfsidl nfsio 95659 376393 0 0 3 0x14280 nfsidl nfsio 74752 426544 0 0 3 0x14280 nfsidl nfsio 56396 244096 0 0 3 0x14280 nfsidl nfsio 44853 313772 0 0 3 0x14280 nfsidl nfsio 12632 89007 44854 0 3 0x82 nanoslp syz-executor 29938 38218 44854 0 2 0x2 syz-executor 18565 210490 1 0 3 0x100083 ttyopn getty 92712 261981 44854 0 3 0x82 nanoslp syz-executor 42900 436627 44854 0 2 0x2 syz-executor 74441 490634 44854 0 3 0x82 nanoslp syz-executor 68692 250662 0 0 3 0x14200 bored sosplice 85666 376707 44854 0 3 0x82 nanoslp syz-executor 44854 326130 57183 0 3 0x82 kqread syz-executor 57183 390351 40504 0 3 0x10008a sigsusp ksh 40504 9708 73086 0 3 0x98 kqread sshd-session 73086 117389 92049 0 3 0x92 kqread sshd-session 92049 256172 1 0 3 0x88 kqread sshd 79486 236363 13903 73 3 0x1100090 kqread syslogd 13903 109103 1 0 3 0x100082 sbwait syslogd 52347 86628 1 0 3 0x100080 kqread resolvd 11400 70599 33642 77 3 0x100092 kqread dhcpleased 5932 82853 33642 77 3 0x100092 kqread dhcpleased 33642 66195 1 0 3 0x80 kqread dhcpleased 51457 104220 0 0 3 0x14200 bored smr 65272 123203 0 0 2 0x14200 zerothread 97482 445076 0 0 3 0x14200 aiodoned aiodoned 26889 357379 0 0 3 0x14200 syncer update 17889 153650 0 0 3 0x14200 cleaner cleaner 4526 494126 0 0 3 0x14200 reaper reaper 69697 3868 0 0 3 0x14200 pgdaemon pagedaemon 88431 154295 0 0 3 0x14200 bored viomb 61074 138519 0 0 3 0x40014200 acpi0 acpi0 50692 22111 0 0 3 0x14200 bored softnet0 98526 461142 0 0 3 0x14200 bored systqmp 85266 504529 0 0 3 0x14200 bored systq 77342 140422 0 0 3 0x40014200 tmoslp softclock 69855 162959 0 0 3 0x40014200 idle0 1 292308 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10210 11054K 12129K 166960K 16153 0 pcb 17 18K 23K 166960K 1077 0 rtable 181 12K 13K 166960K 944 0 pf 29 12K 67481K 166960K 266 0 ifaddr 26 4K 7K 166960K 191 0 ifgroup 46 2K 2K 166960K 335 0 sysctl 4 1K 9K 166960K 63 0 counters 31 17K 18K 166960K 179 0 ioctlops 0 0K 4K 166960K 582 0 iov 0 0K 24K 166960K 256 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1513 95K 96K 166960K 4082 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 46 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 92 0 dirhash 12 2K 2K 166960K 48 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 236K 166960K 2567 0 sigio 0 0K 0K 166960K 56 0 proc 64 67K 91K 166960K 959 0 subproc 72 4K 4K 166960K 144 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 393 0 in_multi 37 2K 7K 166960K 273 0 ether_multi 1 0K 0K 166960K 37 0 mrt 2 0K 0K 166960K 39 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 905 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 227 152K 172K 166960K 24186 0 UVM aobj 74 3K 3K 166960K 79 0 pinsyscall 37 74K 93K 166960K 3827 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 138 0 NDP 10 0K 2K 166960K 144 0 temp 81 8652K 8754K 166960K 99373 0 kqueue 13 20K 33K 166960K 478 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 120 259 0 256 2 1 1 2 0 8 0 rtentry 136 273 0 223 4 1 3 4 0 8 0 unpcb 144 2667 0 2649 19 13 6 11 0 8 4 syncache 336 5 0 5 1 1 0 1 0 8 0 tcpcb 736 1124 0 1120 22 13 9 13 0 8 8 arp 96 44 0 31 1 0 1 1 0 8 0 ipq 40 9 0 9 1 0 1 1 0 8 1 ipqe 40 14 0 14 1 0 1 1 0 8 1 inpcb 328 3500 0 3493 39 26 13 18 0 8 12 ip6q 72 8 0 8 1 0 1 1 0 8 1 ip6af 40 15 0 15 1 0 1 1 0 8 1 nd6 112 59 0 50 1 0 1 1 0 8 0 pkpcb 40 22 0 22 3 2 1 1 0 8 1 kcovpl 48 16 0 8 1 0 1 1 0 8 0 mppekey 1024 3 0 3 2 2 0 1 0 8 0 ppxss 1072 114 0 114 3 2 1 1 0 8 1 pppxif 1384 10 0 10 3 2 1 1 0 8 1 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pfrktable 1344 3 0 3 2 2 0 1 0 8 0 pfstkey 128 2 0 2 1 1 0 1 0 8 0 pfstate 384 1 0 1 1 1 0 1 0 8 0 rttmr 136 7 0 7 2 2 0 1 0 8 0 art_heap8 4096 6 0 1 6 1 5 6 0 8 0 art_heap4 256 1215 0 1004 36 14 22 33 0 8 5 art_table 40 1221 0 1005 6 0 6 6 0 8 0 art_node 32 267 0 223 1 0 1 1 0 8 0 sysvmsgpl 40 11 0 6 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 87 0 77 1 0 1 1 0 8 0 shmpl 112 76 0 5 3 0 3 3 0 8 0 dirhash 1024 42 0 25 3 0 3 3 0 8 0 dino2pl 256 6265 0 4763 95 0 95 95 0 8 0 ffsino 256 6265 0 4763 95 0 95 95 0 8 0 nchpl 144 9688 0 7982 64 0 64 64 0 8 0 rtmask 32 19 0 19 3 2 1 1 0 8 1 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 35418 0 35414 4 3 1 2 0 8 0 kstatmem 264 220 0 200 2 0 2 2 0 8 0 scsiplug 72 16 0 16 3 2 1 1 0 8 1 scxspl 216 34544 0 34544 8 7 1 8 1 8 1 plimitpl 152 931 0 914 1 0 1 1 0 8 0 sigapl 424 2843 0 2781 8 0 8 8 0 8 0 knotepl 120 140533 0 140485 34 24 10 17 0 8 6 kqueuepl 184 1023 0 1014 7 6 1 4 0 8 0 pipepl 304 428 0 400 7 2 5 5 0 8 2 fdescpl 448 2801 0 2773 5 1 4 5 0 8 0 filepl 120 21400 0 21181 22 5 17 17 0 8 4 lockfpl 104 1206 0 1202 3 1 2 2 0 8 1 lockfspl 48 378 0 374 1 0 1 1 0 8 0 sessionpl 144 31 0 23 1 0 1 1 0 8 0 pgrppl 48 78 0 62 1 0 1 1 0 8 0 ucredpl 104 3458 0 3447 1 0 1 1 0 8 0 zombiepl 144 3156 0 3155 1 0 1 1 0 8 0 processpl 1152 2844 0 2781 5 0 5 5 0 8 0 procpl 664 6550 0 6478 9 1 8 8 0 8 0 sosppl 168 22 0 22 3 2 1 1 0 8 1 sockpl 552 6606 0 6577 57 35 22 23 0 8 17 mcl64k 65536 674 0 659 3 1 2 2 0 8 0 mcl16k 16384 6 0 6 1 1 0 1 0 8 0 mcl12k 12288 1 0 1 1 1 0 1 0 8 0 mcl9k 9216 2 0 2 2 1 1 1 0 8 1 mcl8k 8192 27 0 27 3 2 1 1 0 8 1 mcl4k 4096 5705 0 5651 17 9 8 15 0 8 0 mcl2k2 2112 2 0 2 1 1 0 1 0 8 0 mcl2k 2048 3999 0 3988 15 11 4 10 0 8 1 mtagpl 96 28 0 12 1 0 1 1 0 8 0 mbufpl 256 31836 0 31528 25 5 20 20 0 8 0 bufpl 280 12515 0 6293 445 0 445 445 0 8 0 anonpl 24 399838 0 395803 85 35 50 60 0 187 10 amapchunkpl 152 86350 0 85854 62 28 34 39 0 158 9 amappl16 200 6272 0 6241 50 38 12 15 0 8 8 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 5 0 4 1 0 1 1 0 8 0 amappl13 176 500 0 499 1 0 1 1 0 8 0 amappl12 168 3194 0 3158 2 0 2 2 0 8 0 amappl11 160 3 0 2 1 0 1 1 0 8 0 amappl10 152 56 0 46 1 0 1 1 0 8 0 amappl9 144 266 0 266 1 1 0 1 0 8 0 amappl8 136 30 0 28 1 0 1 1 0 8 0 amappl7 128 110 0 109 1 0 1 1 0 8 0 amappl6 120 378 0 367 1 0 1 1 0 8 0 amappl5 112 76 0 68 1 0 1 1 0 8 0 amappl4 104 438 0 414 1 0 1 1 0 8 0 amappl3 96 14522 0 14440 3 0 3 3 0 8 0 amappl2 88 2902 0 2831 2 0 2 2 0 8 0 amappl1 80 19622 0 19090 13 0 13 13 0 8 0 amappl 88 22897 0 22738 5 0 5 5 0 92 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 dma32768 32768 2 0 2 1 1 0 1 0 8 0 dma16384 16384 2 0 2 1 1 0 1 0 8 0 dma8192 8192 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 260 0 260 3 2 1 1 0 8 1 dma64 64 7 0 7 2 2 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 20 0 19 1 0 1 1 0 8 0 aobjpl 72 78 0 5 2 0 2 2 0 8 0 uaddrrnd 24 2800 0 2773 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2800 0 2773 1 0 1 1 0 8 0 vmmpekpl 168 20522 0 20461 4 0 4 4 0 8 0 vmmpepl 168 174963 0 173250 111 18 93 93 0 357 10 vmsppl 368 2799 0 2773 4 1 3 4 0 8 0 rwobjpl 40 48083 0 41241 72 0 72 72 0 8 2 pdppl 4096 5607 0 5546 131 64 67 79 0 8 6 pvpl 32 1180160 0 1170805 187 74 113 149 0 265 8 pmappl 216 2799 0 2773 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 475 0 134 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace lf_advlock(ffff800001462120,0,fffffd806c6bc5b0,2,ffff80002a881960,20) at lf_advlock+0x2f1 ls_ref sys/kern/vfs_lockf.c:138 [inline] lf_advlock(ffff800001462120,0,fffffd806c6bc5b0,2,ffff80002a881960,20) at lf_advlock+0x2f1 sys/kern/vfs_lockf.c:278 VOP_ADVLOCK(fffffd806d412528,fffffd806c6bc5b0,2,ffff80002a881960,20) at VOP_ADVLOCK+0x87 sys/kern/vfs_vops.c:623 vn_closefile(fffffd806c6bc5b0,ffff80002a7de570) at vn_closefile+0xac sys/kern/vfs_vnops.c:615 fdrop(fffffd806c6bc5b0,ffff80002a7de570) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c6bc5b0,ffff80002a7de570) at closef+0x190 sys/kern/kern_descrip.c:1264 fdfree(ffff80002a7de570) at fdfree+0x115 sys/kern/kern_descrip.c:1195 exit1(ffff80002a7de570,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a7de570,ffff80002a881c40,ffff80002a881b90) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a881c40) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a881c40) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x783517ff04c0, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace lf_advlock(ffff800001462120,0,fffffd806c6bc5b0,2,ffff80002a881960,20) at lf_advlock+0x2f1 ls_ref sys/kern/vfs_lockf.c:138 [inline] lf_advlock(ffff800001462120,0,fffffd806c6bc5b0,2,ffff80002a881960,20) at lf_advlock+0x2f1 sys/kern/vfs_lockf.c:278 VOP_ADVLOCK(fffffd806d412528,fffffd806c6bc5b0,2,ffff80002a881960,20) at VOP_ADVLOCK+0x87 sys/kern/vfs_vops.c:623 vn_closefile(fffffd806c6bc5b0,ffff80002a7de570) at vn_closefile+0xac sys/kern/vfs_vnops.c:615 fdrop(fffffd806c6bc5b0,ffff80002a7de570) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c6bc5b0,ffff80002a7de570) at closef+0x190 sys/kern/kern_descrip.c:1264 fdfree(ffff80002a7de570) at fdfree+0x115 sys/kern/kern_descrip.c:1195 exit1(ffff80002a7de570,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a7de570,ffff80002a881c40,ffff80002a881b90) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a881c40) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a881c40) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x783517ff04c0, count: -10