kernel: protection fault trap, code=0 Stopped at ktrops+0x4f: movq 0x8(%r14),%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(ffff80002a22a7e8,dead4110dead4110,0,80001024,fffffd806c0b0b30,fffffd807f7d38f0) at ktrops+0x4f ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a22a7e8,dead4110dead4110,0,80001024,fffffd806c0b0b30,fffffd807f7d38f0) at ktrops+0x4f sys/kern/kern_ktrace.c:561 doktrace(fffffd806c0b0b30,4,1024,0,ffff80002a22a7e8) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806c0b0b30,4,1024,0,ffff80002a22a7e8) at doktrace+0x514 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a22a7e8,ffff80002a2ce9f0,ffff80002a2ce940) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a2ce9f0) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002a2ce9f0) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2a972633950, count: -5 ddb{1}> show registers rdi 0xffff80002a22a7e8 rsi 0xdead4110dead4110 rbp 0xffff80002a2ce710 rbx 0xfffffd807f7d38f0 rdx 0 rcx 0xffff80002a22a7e8 rax 0xffff800029cebff0 r8 0xfffffd806c0b0b30 r9 0xfffffd807f7d38f0 r10 0x1aa2e44dabcac6e0 r11 0x7831d13971e54ea7 r12 0xffff80002a22a7e8 r13 0xdead4110dead4110 r14 0xdead4110dead4110 r15 0x80001024 __kernel_virt_to_phys+0x1024 rip 0xffffffff81e99b2f ktrops+0x4f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a2ce690 ss 0x10 ktrops+0x4f: movq 0x8(%r14),%r14 ddb{1}> show proc PROC (syz-executor.6) tid=438493 pid=86253 tcnt=2 stat=onproc flags process=8000000 proc=4000000 runpri=17, usrpri=70, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a22b4b8,0xffff80002a22b9e8 process=0xffff8000ffff2c80 user=0xffff80002a2c9000, vmspace=0xfffffd80678451b8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 35567 32721 71522 0 2 0x8000000 syz-executor.7 92303 207026 26277 0 2 0x8000000 syz-executor.4 86253 113873 47248 0 2 0x8000000 syz-executor.6 *86253 438493 47248 0 7 0xc000000 syz-executor.6 9015 202358 46882 0 2 0x8000000 syz-executor.3 9015 130178 46882 0 2 0xc000000 syz-executor.3 14298 211281 29357 0 3 0x8000082 nanoslp syz-executor.0 71522 424346 29357 0 3 0x8000082 nanoslp syz-executor.7 47248 115303 29357 0 3 0x8000082 nanoslp syz-executor.6 55603 195201 29357 0 2 0x8000002 syz-executor.5 61159 504733 29357 0 3 0x8000082 nanoslp syz-executor.2 36076 183069 29357 0 3 0x8000002 biowait syz-executor.1 46882 336322 29357 0 2 0x8000482 syz-executor.3 26277 363553 29357 0 3 0x8000082 nanoslp syz-executor.4 29357 221857 98586 0 3 0x1a000082 wait syz-execprog 29357 397697 98586 0 3 0x1e000082 nanoslp syz-execprog 29357 493275 98586 0 3 0x1e000082 wait syz-execprog 29357 76819 98586 0 3 0x1e000082 wait syz-execprog 29357 120986 98586 0 3 0x1e000082 wait syz-execprog 29357 401915 98586 0 3 0x1e000082 thrsleep syz-execprog 29357 231085 98586 0 3 0x1e000082 wait syz-execprog 29357 325430 98586 0 3 0x1e000082 thrsleep syz-execprog 29357 390113 98586 0 3 0x1e000082 wait syz-execprog 29357 222993 98586 0 2 0x1e000002 syz-execprog 29357 235942 98586 0 3 0x1e000082 thrsleep syz-execprog 29357 12166 98586 0 3 0x1e000082 wait syz-execprog 29357 444554 98586 0 3 0x1e000082 wait syz-execprog 29357 337113 98586 0 3 0x1e000082 thrsleep syz-execprog 29357 407834 98586 0 7 0x1e000002 syz-execprog 98586 423277 78190 0 3 0x810008a sigsusp ksh 78190 186525 81046 0 3 0x1800009a kqread sshd 61326 136304 1 0 3 0x18100083 ttyin getty 81046 40118 1 0 3 0x18000088 kqread sshd 58932 226128 50760 73 3 0x19100090 kqread syslogd 50760 494965 1 0 3 0x18100082 sbwait syslogd 23142 509169 1 0 3 0x18100080 kqread resolvd 72087 231719 4915 77 3 0x18100092 kqread dhcpleased 95273 131759 4915 77 3 0x18100092 kqread dhcpleased 4915 463020 1 0 3 0x18000080 kqread dhcpleased 65723 180826 0 0 3 0x14200 bored smr 16851 477007 0 0 2 0x14200 zerothread 56912 273085 0 0 3 0x14200 aiodoned aiodoned 76975 40594 0 0 3 0x14200 syncer update 19677 243268 0 0 3 0x14200 cleaner cleaner 50657 201572 0 0 3 0x14200 reaper reaper 14719 154925 0 0 3 0x14200 pgdaemon pagedaemon 76660 360734 0 0 3 0x14200 bored viomb 43488 483117 0 0 3 0x40014200 acpi0 acpi0 35196 377151 0 0 3 0x40014200 idle1 9431 112793 0 0 3 0x14200 bored softnet3 2582 320192 0 0 3 0x14200 bored softnet2 80812 215068 0 0 3 0x14200 bored softnet1 41439 444005 0 0 3 0x14200 bored softnet0 7750 382349 0 0 3 0x14200 bored systqmp 81998 149239 0 0 3 0x14200 bored systq 76021 193014 0 0 3 0x14200 tmoslp softclockmp 92862 393300 0 0 3 0x40014200 tmoslp softclock 98677 246040 0 0 3 0x40014200 idle0 1 488620 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 86253 (syz-executor.6) thread 0xffff80002a22a7e8 (438493) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82dc5b88) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x491 sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19a sys/kern/kern_synch.c:417 #4 getblk+0x137 sys/kern/vfs_bio.c:1025 #5 bread+0x3e bio_doread sys/kern/vfs_bio.c:430 [inline] #5 bread+0x3e sys/kern/vfs_bio.c:475 #6 ffs_update+0x14c sys/ufs/ffs/ffs_inode.c:91 #7 ufs_inactive+0x213 sys/ufs/ufs/ufs_inode.c:95 #8 VOP_INACTIVE+0xc4 sys/kern/vfs_vops.c:495 #9 vrele+0xd5 sys/kern/vfs_subr.c:827 #10 ktrsettrace+0xb6 sys/kern/kern_ktrace.c:122 #11 ktrops+0x1ae sys/kern/kern_ktrace.c:564 #12 doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] #12 doktrace+0x514 sys/kern/kern_ktrace.c:508 #13 sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 #14 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #14 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #15 Xsyscall+0x128 Process 36076 (syz-executor.1) thread 0xffff8000ffff6028 (183069) exclusive rrwlock inode r = 0 (0xfffffd806851d1b0) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x46 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x1e4 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xe6 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:394 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3077 #10 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #10 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8072d08c58) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:524 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418 #6 namei+0x56a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3062 #8 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #8 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10167 6406K 6419K 166960K 11248 0 pcb 17 12K 12K 166960K 17 0 rtable 234 6K 6K 166960K 377 0 pf 29 8K 10K 166960K 43 0 ifaddr 44 15K 15K 166960K 50 0 ifgroup 50 2K 2K 166960K 55 0 counters 64 36K 36K 166960K 66 0 ioctlops 0 0K 4K 166960K 1482 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1273 80K 80K 166960K 1292 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 14 49K 89K 166960K 231 0 proc 55 78K 127K 166960K 508 0 subproc 0 0K 0K 166960K 13 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 99 7K 7K 166960K 110 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 410 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 235 73K 74K 166960K 5200 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 34 68K 100K 166960K 1528 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 25 1K 2K 166960K 30 0 temp 1 6804K 6868K 166960K 4848 0 kqueue 12 18K 18K 166960K 34 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 35 0 32 1 0 1 1 0 8 0 rtentry 112 122 0 12 4 0 4 4 0 8 0 unpcb 144 199 0 186 1 0 1 1 0 8 0 syncache 336 8 0 8 2 1 1 1 0 8 1 tcpqe 32 19 0 19 1 1 0 1 0 8 0 tcpcb 808 12 0 9 1 0 1 1 0 8 0 arp 120 20 0 2 1 0 1 1 0 8 0 inpcb 384 70 0 64 2 0 2 2 0 8 1 nd6 136 27 0 3 2 1 1 1 0 8 0 kcovpl 48 1 0 1 1 1 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 pfstitem 24 23 0 4 1 0 1 1 0 8 0 pfstkey 128 23 0 4 1 0 1 1 0 8 0 pfstate 376 23 0 4 2 0 2 2 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 501 0 48 32 3 29 29 0 8 0 art_table 32 502 0 48 5 1 4 4 0 8 0 art_node 16 121 0 21 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1744 0 193 99 1 98 98 0 8 0 ffsino 272 1744 0 193 105 1 104 104 0 8 0 nchpl 144 2180 0 393 67 0 67 67 0 8 0 uvmvnodes 80 1770 0 0 37 0 37 37 0 8 0 vnodes 216 1770 0 0 99 0 99 99 0 8 0 namei 1024 8308 0 8307 3 2 1 2 0 8 0 percpumem 16 47 0 1 1 0 1 1 0 8 0 kstatmem 264 24 0 2 2 0 2 2 0 8 0 scxspl 216 8902 0 8901 10 8 2 8 1 8 1 plimitpl 152 49 0 34 1 0 1 1 0 8 0 sigapl 424 560 0 515 7 1 6 6 0 8 0 futexpl 64 556 0 556 2 1 1 1 0 8 1 knotepl 120 134 0 0 4 0 4 4 0 8 0 kqueuepl 216 30 0 22 1 0 1 1 0 8 0 pipepl 320 185 0 157 5 2 3 3 0 8 0 fdescpl 496 542 0 517 8 3 5 5 0 8 1 filepl 152 2563 0 2433 7 1 6 6 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 32 0 16 1 0 1 1 0 8 0 pgrppl 48 32 0 16 1 0 1 1 0 8 0 ucredpl 104 93 0 83 1 0 1 1 0 8 0 zombiepl 144 517 0 515 2 1 1 1 0 8 0 processpl 1136 560 0 515 5 1 4 4 0 8 0 procpl 656 663 0 602 8 2 6 6 0 8 0 sockpl 664 304 0 282 3 0 3 3 0 8 1 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k 2048 351 0 0 43 0 43 43 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 386 0 0 23 0 23 23 0 8 0 bufpl 280 5167 0 184 356 0 356 356 0 8 0 anonpl 24 360191 0 356068 60 16 44 53 0 186 15 amapchunkpl 152 19041 0 18513 39 14 25 27 0 158 1 amappl16 200 10465 0 10394 8 3 5 5 0 8 1 amappl15 192 28 0 28 2 2 0 1 0 8 0 amappl14 184 214 0 203 3 1 2 2 0 8 1 amappl13 176 22 0 21 2 1 1 1 0 8 0 amappl12 168 1242 0 1217 3 1 2 2 0 8 0 amappl11 160 65 0 55 1 0 1 1 0 8 0 amappl10 152 127 0 118 2 1 1 1 0 8 0 amappl9 144 432 0 432 3 2 1 1 0 8 1 amappl8 136 195 0 163 2 0 2 2 0 8 0 amappl7 128 113 0 103 1 0 1 1 0 8 0 amappl6 120 425 0 412 3 1 2 2 0 8 1 amappl5 112 229 0 217 1 0 1 1 0 8 0 amappl4 104 736 0 705 3 1 2 2 0 8 0 amappl3 96 3827 0 3767 3 1 2 2 0 8 0 amappl2 88 1135 0 1067 6 3 3 5 0 8 1 amappl1 80 14772 0 14285 31 11 20 22 0 8 8 amappl 88 4465 0 4311 7 2 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 542 0 517 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 542 0 517 1 0 1 1 0 8 0 vmmpekpl 168 12730 0 12700 2 0 2 2 0 8 0 vmmpepl 168 71124 0 69591 124 14 110 114 0 357 36 vmsppl 440 541 0 517 5 1 4 4 0 8 0 rwobjpl 56 33475 0 30770 56 11 45 48 0 8 2 pdppl 4096 1091 0 1034 119 42 77 77 0 8 20 pvpl 32 46213 0 0 374 1 373 373 0 265 0 pmappl 248 541 0 517 5 2 3 3 0 8 1 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 436 0 52 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82cb5ff0) at x86_ipi_db+0x1e 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+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff82dc5980) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82dc5980) at __mp_lock+0x133 sys/kern/kern_lock.c:147 intr_handler(ffff80002a380010,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff82dc5980) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82dc5980) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff80002a3801e0) at syscall+0x7ab mi_syscall_return sys/sys/syscall_mi.h:208 [inline] syscall(ffff80002a3801e0) at syscall+0x7ab sys/arch/amd64/amd64/trap.c:598 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2ebe9ce90, count: -10 ddb{0}> machine ddbcpu 1 Stopped at ktrops+0x4f: movq 0x8(%r14),%r14 ddb{1}> trace ktrops(ffff80002a22a7e8,dead4110dead4110,0,80001024,fffffd806c0b0b30,fffffd807f7d38f0) at ktrops+0x4f ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a22a7e8,dead4110dead4110,0,80001024,fffffd806c0b0b30,fffffd807f7d38f0) at ktrops+0x4f sys/kern/kern_ktrace.c:561 doktrace(fffffd806c0b0b30,4,1024,0,ffff80002a22a7e8) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806c0b0b30,4,1024,0,ffff80002a22a7e8) at doktrace+0x514 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a22a7e8,ffff80002a2ce9f0,ffff80002a2ce940) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a2ce9f0) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002a2ce9f0) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2a972633950, count: -5