kernel: protection fault trap, code=0 Stopped at ktrops+0x4a: movq 0x8(%rbx),%r14 ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace ktrops(ffff800021237260,deadbeefdeadbeef,0,80001108,fffffd8063446828,fffffd807f7d78a0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:698 [inline] ktrops(ffff800021237260,deadbeefdeadbeef,0,80001108,fffffd8063446828,fffffd807f7d78a0) at ktrops+0x4a sys/kern/kern_ktrace.c:543 doktrace(fffffd8063446828,4,1108,ffffffff,ffff800021237260) at doktrace+0x418 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] doktrace(fffffd8063446828,4,1108,ffffffff,ffff800021237260) at doktrace+0x418 sys/kern/kern_ktrace.c:475 sys_ktrace(ffff800021237260,ffff8000246894d8,ffff800024689530) at sys_ktrace+0xd5 sys/kern/kern_ktrace.c:531 syscall(ffff8000246895a0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000246895a0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9da0dab9860, count: -5 ddb{1}> show registers rdi 0xffff800022c66000 rsi 0x1459f acpi_pdirpa+0x407 rbp 0xffff8000246892c0 rbx 0xdeadbeefdeadbeef rdx 0xffff800022c66000 rcx 0x1459e acpi_pdirpa+0x406 rax 0xffffffff8221deef ktrops+0x3f r8 0xfffffd8063446828 r9 0xfffffd807f7d78a0 r10 0xcd7ed841e6eb7398 r11 0x493f2ce9474abf13 r12 0xffff8000fffffa30 r13 0xfffffd807f7d78a0 r14 0xffff800021237260 r15 0x80001108 __kernel_virt_to_phys+0x1108 rip 0xffffffff8221defa ktrops+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800024689240 ss 0x10 ktrops+0x4a: movq 0x8(%rbx),%r14 ddb{1}> show proc PROC (syz-executor.1) pid=449659 stat=onproc flags process=0 proc=4000000 pri=17, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff800021236000,0xffffffff8291d590 process=0xffff8000ffffadc0 user=0xffff800024684000, vmspace=0xfffffd8008582000 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 41026 487578 4420 0 2 0 syz-executor.1 *41026 449659 4420 0 7 0x4000000 syz-executor.1 4420 332098 12134 0 3 0x82 nanoslp syz-executor.1 36127 71446 0 0 3 0x14200 acct acct 33713 71709 0 0 3 0x14280 nfsidl nfsio 69419 157476 0 0 3 0x14280 nfsidl nfsio 69579 346080 0 0 3 0x14280 nfsidl nfsio 616 389364 0 0 3 0x14280 nfsidl nfsio 4160 127306 0 0 3 0x14280 nfsidl nfsio 15401 244123 0 0 3 0x14280 nfsidl nfsio 4714 189056 0 0 3 0x14280 nfsidl nfsio 83996 35903 0 0 3 0x14280 nfsidl nfsio 48643 267455 0 0 3 0x14280 nfsidl nfsio 7872 108090 0 0 3 0x14280 nfsidl nfsio 34475 285911 0 0 3 0x14280 nfsidl nfsio 61374 52823 0 0 3 0x14280 nfsidl nfsio 10556 442771 0 0 3 0x14280 nfsidl nfsio 68037 247535 0 0 3 0x14280 nfsidl nfsio 31520 484649 0 0 3 0x14280 nfsidl nfsio 48041 10096 0 0 3 0x14280 nfsidl nfsio 81961 281040 0 0 3 0x14280 nfsidl nfsio 32609 369917 0 0 3 0x14280 nfsidl nfsio 16363 511060 0 0 3 0x14280 nfsidl nfsio 94161 402363 0 0 3 0x14280 nfsidl nfsio 30047 19942 1 0 3 0x100083 ttyin getty 7836 454011 0 0 3 0x14200 bored sosplice 12134 399067 83425 0 3 0x82 thrsleep syz-fuzzer 12134 57144 83425 0 3 0x4000082 nanoslp syz-fuzzer 12134 253966 83425 0 3 0x4000082 thrsleep syz-fuzzer 12134 158573 83425 0 3 0x4000082 thrsleep syz-fuzzer 12134 519707 83425 0 3 0x4000082 nanoslp syz-fuzzer 12134 233098 83425 0 3 0x4000082 thrsleep syz-fuzzer 12134 153248 83425 0 3 0x4000082 thrsleep syz-fuzzer 12134 81126 83425 0 7 0x4000002 syz-fuzzer 83425 407676 69373 0 3 0x10008a sigsusp ksh 69373 310062 73275 0 2 0x12 sshd 73275 318548 1 0 3 0x88 kqread sshd 96282 415818 38325 74 3 0x100092 bpf pflogd 38325 181449 1 0 3 0x80 netio pflogd 75191 131197 99617 73 3 0x100090 kqread syslogd 99617 335917 1 0 3 0x100082 netio syslogd 85038 302259 1 0 3 0x100080 kqread resolvd 2134 431389 64309 77 3 0x100092 kqread dhcpleased 44923 437203 64309 77 3 0x100092 kqread dhcpleased 64309 274645 1 0 3 0x80 kqread dhcpleased 17476 72671 0 0 3 0x14200 bored smr 94079 283280 0 0 2 0x14200 zerothread 50112 26866 0 0 3 0x14200 aiodoned aiodoned 65836 183456 0 0 3 0x14200 syncer update 59140 75429 0 0 3 0x14200 cleaner cleaner 92870 312660 0 0 3 0x14200 reaper reaper 78174 474358 0 0 3 0x14200 pgdaemon pagedaemon 8163 242602 0 0 3 0x14200 bored viomb 19691 456867 0 0 3 0x40014200 acpi0 acpi0 82066 172351 0 0 3 0x40014200 idle1 36757 285828 0 0 3 0x14200 bored softnet 94707 106813 0 0 3 0x14200 bored systqmp 96688 287982 0 0 3 0x14200 bored systq 44332 438901 0 0 3 0x40014200 bored softclock 22931 278527 0 0 3 0x40014200 idle0 1 282743 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 41026 (syz-executor.1) thread 0xffff800021237260 (449659) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828dcbc8) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 __mp_acquire_count+0x4c sys/kern/kern_lock.c:227 #2 mi_switch+0x3d3 sys/kern/sched_bsd.c:416 #3 sleep_finish+0x1b2 sys/kern/kern_synch.c:433 #4 tsleep+0x125 sys/kern/kern_synch.c:158 #5 biowait+0x91 sys/kern/vfs_bio.c:1271 #6 bwrite+0x21d sys/kern/vfs_bio.c:772 #7 ffs_update+0x2b5 sys/ufs/ffs/ffs_inode.c:113 #8 ffs_truncate+0xce8 #9 ufs_inactive+0x14e sys/ufs/ufs/ufs_inode.c:84 #10 VOP_INACTIVE+0xc4 sys/kern/vfs_vops.c:505 #11 vrele+0xd2 sys/kern/vfs_subr.c:824 #12 ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124 #13 ktrops+0x1a1 sys/kern/kern_ktrace.c:546 #14 doktrace+0x418 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] #14 doktrace+0x418 sys/kern/kern_ktrace.c:475 #15 sys_ktrace+0xd5 sys/kern/kern_ktrace.c:531 #16 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #16 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #17 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10139 6450K 6958K 78643K 25909 0 pcb 13 18K 21K 78643K 14797 0 rtable 104 5K 6K 78643K 3591 0 ifaddr 50 13K 13K 78643K 711 0 sysctl 2 0K 0K 78643K 2 0 counters 44 34K 34K 78643K 260 0 ioctlops 0 0K 4K 78643K 8658 0 iov 0 0K 16K 78643K 368 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1272 80K 80K 78643K 5808 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 106 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 391 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 5 13K 25K 78643K 22995 0 sigio 0 0K 0K 78643K 193 0 proc 71 87K 111K 78643K 1485 0 subproc 26 1K 1K 78643K 416 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 725 0 in_multi 33 2K 2K 78643K 897 0 ether_multi 1 0K 0K 78643K 178 0 mrt 1 0K 0K 78643K 571 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 109 493K 493K 78643K 109 0 exec 0 0K 2K 78643K 1401 0 pfkey data 0 0K 1K 78643K 9 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 7 26K 26K 78643K 7 0 UVM amap 343 155K 159K 78643K 288136 0 UVM aobj 131 6K 6K 78643K 133 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 4370 0 NDP 7 0K 0K 78643K 208 0 temp 86 4198K 4274K 78643K 151518 0 kqueue 12 18K 26K 78643K 1656 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> 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 120 305 0 302 1 0 1 1 0 8 0 rtentry 112 590 0 553 5 3 2 2 0 8 0 unpcb 128 3366 0 3351 26 25 1 5 0 8 0 syncache 296 66 0 66 13 13 0 1 0 8 0 tcpqe 32 51 0 51 8 8 0 1 0 8 0 tcpcb 736 8719 0 8715 153 151 2 18 0 8 1 arp 120 68 0 62 1 0 1 1 0 8 0 inpcb 304 46732 0 46725 223 216 7 21 0 8 6 rttmr 72 119 0 119 5 5 0 1 0 8 0 nd6 48 132 0 126 2 1 1 1 0 8 0 pkpcb 40 44 0 44 11 11 0 1 0 8 0 kcovpl 48 32 0 30 1 0 1 1 0 8 0 ppxss 1248 35 0 35 7 7 0 1 0 8 0 pffrag 232 61 0 61 5 5 0 1 0 482 0 pffrnode 88 59 0 59 5 5 0 1 0 8 0 pffrent 40 402 0 402 5 5 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 pfrktable 1344 25 0 22 1 0 1 1 0 8 0 pfstitem 24 33 0 31 1 0 1 1 0 8 0 pfstkey 112 33 0 31 1 0 1 1 0 8 0 pfstate 320 33 0 31 3 2 1 3 0 8 0 pfrule 1360 240 0 220 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2124 0 1943 29 17 12 13 0 8 0 art_table 32 2125 0 1943 3 1 2 2 0 8 0 art_node 16 589 0 559 1 0 1 1 0 8 0 sysvmsgpl 40 29 0 7 1 0 1 1 0 8 0 semapl 112 379 0 369 1 0 1 1 0 8 0 shmpl 112 130 0 2 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 27598 0 26023 100 1 99 99 0 8 0 ffsino 272 27598 0 26023 108 2 106 106 0 8 0 nchpl 144 54525 0 52922 61 1 60 61 0 8 0 uvmvnodes 72 6021 0 0 110 0 110 110 0 8 0 vnodes 224 6021 0 0 355 0 355 355 0 8 0 namei 1024 143809 0 143809 1 0 1 1 0 8 1 percpumem 16 142 0 108 1 0 1 1 0 8 0 vcpupl 2048 11 0 0 2 0 2 2 0 8 0 vmpool 560 11 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 17 0 12 1 0 1 1 0 8 0 scsiplug 72 3 0 3 2 2 0 1 0 8 0 scxspl 216 166467 0 166467 23 22 1 6 0 8 1 plimitpl 152 397 0 388 1 0 1 1 0 8 0 sigapl 424 23179 0 23125 7 0 7 7 0 8 0 futexpl 64 160984 0 160984 1 0 1 1 0 8 1 knotepl 112 141 0 0 2 0 2 2 0 8 0 kqueuepl 216 6582 0 6571 31 26 5 8 0 8 4 pipepl 336 1816 0 1807 83 82 1 7 0 8 0 fdescpl 496 23142 0 23124 3 0 3 3 0 8 0 filepl 152 116031 0 115926 152 142 10 15 0 8 4 lockfpl 104 2916 0 2914 3 1 2 2 0 8 1 lockfspl 48 1139 0 1137 1 0 1 1 0 8 0 sessionpl 144 50 0 39 1 0 1 1 0 8 0 pgrppl 48 95 0 84 1 0 1 1 0 8 0 ucredpl 96 5853 0 5841 1 0 1 1 0 8 0 zombiepl 144 23126 0 23125 1 0 1 1 0 8 0 processpl 1064 23179 0 23125 4 0 4 4 0 8 0 procpl 672 61046 0 60984 44 37 7 8 0 8 1 srpgc 96 32 0 32 6 6 0 1 0 8 0 sosppl 168 134 0 134 7 7 0 1 0 8 0 sockpl 480 50488 0 50463 465 453 12 36 0 8 8 mcl64k 65536 52 0 0 4 2 2 3 0 8 0 mcl16k 16384 25 0 0 4 1 3 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 21 0 0 2 0 2 2 0 8 0 mcl8k 8192 57 0 0 7 4 3 3 0 8 1 mcl4k 4096 33 0 0 4 1 3 3 0 8 0 mcl2k2 2112 20 0 0 2 0 2 2 0 8 0 mcl2k 2048 837 0 0 20 1 19 20 0 8 0 mtagpl 96 446 0 0 6 0 6 6 0 8 0 mbufpl 256 1255 0 0 45 2 43 45 0 8 0 bufpl 280 41370 0 35041 453 0 453 453 0 8 0 anonpl 24 6244643 0 6232210 187 109 78 85 0 186 0 amapchunkpl 152 694110 0 693599 79 58 21 30 0 158 0 amappl16 200 51473 0 51076 76 55 21 29 0 8 0 amappl15 192 2553 0 2546 1 0 1 1 0 8 0 amappl14 184 1082 0 1076 1 0 1 1 0 8 0 amappl13 176 4886 0 4884 1 0 1 1 0 8 0 amappl12 168 5250 0 5246 2 1 1 1 0 8 0 amappl11 160 2151 0 2134 1 0 1 1 0 8 0 amappl10 152 973 0 965 1 0 1 1 0 8 0 amappl9 144 4502 0 4499 1 0 1 1 0 8 0 amappl8 136 3311 0 3145 6 0 6 6 0 8 0 amappl7 128 2181 0 2173 1 0 1 1 0 8 0 amappl6 120 4505 0 4485 1 0 1 1 0 8 0 amappl5 112 21535 0 21511 1 0 1 1 0 8 0 amappl4 104 5298 0 5263 4 2 2 2 0 8 0 amappl3 96 6762 0 6742 1 0 1 1 0 8 0 amappl2 88 29596 0 29545 3 1 2 2 0 8 0 amappl1 80 380993 0 380539 13 3 10 13 0 8 0 amappl 88 287080 0 286899 8 3 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 64 132 0 2 3 0 3 3 0 8 0 uaddrrnd 24 23153 0 23124 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 23153 0 23124 1 0 1 1 0 8 0 vmmpekpl 168 130834 0 130801 2 0 2 2 0 8 0 vmmpepl 168 2028925 0 2027062 255 170 85 104 0 357 0 vmsppl 368 23152 0 23124 3 0 3 3 0 8 0 rwobjpl 56 469927 0 468617 41 22 19 19 0 8 0 pdppl 4096 46314 0 46259 84 27 57 59 0 8 2 pvpl 32 10805525 0 10791697 394 272 122 135 0 265 5 pmappl 224 23152 0 23124 2 0 2 2 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 657 0 294 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8278fff0) 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(ffffffff828dc9c0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828dc9c0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff800021249570) at syscall+0x3ef mi_syscall sys/sys/syscall_mi.h:93 [inline] syscall(ffff800021249570) at syscall+0x3ef sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27c98b1b0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at ktrops+0x4a: movq 0x8(%rbx),%r14 ddb{1}> trace ktrops(ffff800021237260,deadbeefdeadbeef,0,80001108,fffffd8063446828,fffffd807f7d78a0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:698 [inline] ktrops(ffff800021237260,deadbeefdeadbeef,0,80001108,fffffd8063446828,fffffd807f7d78a0) at ktrops+0x4a sys/kern/kern_ktrace.c:543 doktrace(fffffd8063446828,4,1108,ffffffff,ffff800021237260) at doktrace+0x418 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] doktrace(fffffd8063446828,4,1108,ffffffff,ffff800021237260) at doktrace+0x418 sys/kern/kern_ktrace.c:475 sys_ktrace(ffff800021237260,ffff8000246894d8,ffff800024689530) at sys_ktrace+0xd5 sys/kern/kern_ktrace.c:531 syscall(ffff8000246895a0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000246895a0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9da0dab9860, count: -5