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(ffff8000211bad20,deadbeefdeadbeef,0,c0001000,fffffd806c604678,fffffd807f7d77e0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline] ktrops(ffff8000211bad20,deadbeefdeadbeef,0,c0001000,fffffd806c604678,fffffd807f7d77e0) at ktrops+0x4a sys/kern/kern_ktrace.c:547 doktrace(fffffd806c604678,4,40001000,0,ffff8000211bad20) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline] doktrace(fffffd806c604678,4,40001000,0,ffff8000211bad20) at doktrace+0x514 sys/kern/kern_ktrace.c:494 sys_ktrace(ffff8000211bad20,ffff800021204438,ffff800021204490) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535 syscall(ffff800021204500) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021204500) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc4e90, count: -5 ddb{1}> show registers rdi 0xffff8000211bad20 rsi 0xdeadbeefdeadbeef rbp 0xffff800021204220 rbx 0xdeadbeefdeadbeef rdx 0 rcx 0xc0001000 rax 0x1 r8 0xfffffd806c604678 r9 0xfffffd807f7d77e0 r10 0x96cdc96eb141a6a2 r11 0x40176a682a4d7ccd r12 0xdeadbeefdeadbeef r13 0xfffffd807f7d77e0 r14 0xffff8000211bad20 r15 0xc0001000 rip 0xffffffff8164f0da ktrops+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000212041a0 ss 0x10 ktrops+0x4a: movq 0x8(%rbx),%r14 ddb{1}> show proc PROC (syz-executor2572879626) pid=352259 stat=onproc flags process=0 proc=0 pri=17, usrpri=52, nice=20 forw=0xffffffffffffffff, list=0xffff8000211bbce0,0xffff8000211bb510 process=0xffff8000ffff14e0 user=0xffff8000211ff000, vmspace=0xfffffd806cd25e70 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 21811 309870 66067 0 2 0 syz-executor2572879626 40011 291952 1375 0 3 0 biowait syz-executor2572879626 *70974 352259 36240 0 7 0 syz-executor2572879626 66067 433722 23440 0 2 0 syz-executor2572879626 8777 416837 23440 0 2 0 syz-executor2572879626 1375 50002 23440 0 3 0x80 nanoslp syz-executor2572879626 76570 98805 23440 0 2 0x480 syz-executor2572879626 86319 7631 23440 0 3 0x80 nanoslp syz-executor2572879626 36240 462659 23440 0 3 0x80 nanoslp syz-executor2572879626 17837 291464 23440 0 2 0 syz-executor2572879626 43809 197522 23440 0 7 0 syz-executor2572879626 23440 242566 96714 0 3 0x82 nanoslp syz-executor2572879626 96714 90445 66677 0 3 0x10008a sigsusp ksh 66677 267385 31790 0 3 0x9a kqread sshd 3149 347525 1 0 3 0x100083 ttyin getty 31790 152253 1 0 3 0x88 kqread sshd 82413 388117 52354 74 3 0x1100092 bpf pflogd 52354 421463 1 0 3 0x80 netio pflogd 30485 487196 60636 73 3 0x1100090 kqread syslogd 60636 312681 1 0 3 0x100082 netio syslogd 1016 147100 1 0 3 0x100080 kqread resolvd 60978 301029 23559 77 3 0x100092 kqread dhcpleased 21070 255501 23559 77 3 0x100092 kqread dhcpleased 23559 149057 1 0 3 0x80 kqread dhcpleased 12694 118912 0 0 3 0x14200 bored smr 68178 232596 0 0 3 0x14200 pgzero zerothread 44147 486345 0 0 3 0x14200 aiodoned aiodoned 88166 388490 0 0 3 0x14200 syncer update 471 494885 0 0 3 0x14200 cleaner cleaner 53219 387749 0 0 3 0x14200 reaper reaper 29214 90374 0 0 3 0x14200 pgdaemon pagedaemon 11334 309999 0 0 3 0x14200 bored viomb 82231 229227 0 0 3 0x40014200 acpi0 acpi0 30245 265476 0 0 3 0x40014200 idle1 7337 418382 0 0 3 0x14200 bored softnet 30628 310283 0 0 3 0x14200 bored systqmp 44522 411198 0 0 3 0x14200 bored systq 17152 21396 0 0 3 0x40014200 bored softclock 55503 458850 0 0 3 0x40014200 idle0 1 386982 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 40011 (syz-executor2572879626) thread 0xffff8000211bb500 (291952) exclusive rrwlock inode r = 0 (0xfffffd806c637d58) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_makeinode+0xae sys/ufs/ufs/ufs_vnops.c:1830 #8 ufs_create+0x41 sys/ufs/ufs/ufs_vnops.c:152 #9 VOP_CREATE+0xbc sys/kern/vfs_vops.c:103 #10 vn_open+0x28f sys/kern/vfs_vnops.c:122 #11 doopenat+0x26a sys/kern/vfs_syscalls.c:1129 #12 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #12 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c6373c8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 vn_open+0x188 sys/kern/vfs_vnops.c:113 #8 doopenat+0x26a sys/kern/vfs_syscalls.c:1129 #9 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #9 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #10 Xsyscall+0x128 Process 70974 (syz-executor2572879626) thread 0xffff8000211bad20 (352259) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82a019f8) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3d3 sys/kern/sched_bsd.c:416 #3 sleep_finish+0x198 sys/kern/kern_synch.c:437 #4 tsleep+0x12c sys/kern/kern_synch.c:158 #5 getblk+0x13c sys/kern/vfs_bio.c:1031 #6 bread+0x3a bio_doread sys/kern/vfs_bio.c:436 [inline] #6 bread+0x3a sys/kern/vfs_bio.c:481 #7 ffs_update+0x14b sys/ufs/ffs/ffs_inode.c:91 #8 ufs_inactive+0x25f sys/ufs/ufs/ufs_inode.c:110 #9 VOP_INACTIVE+0xc4 sys/kern/vfs_vops.c:505 #10 vrele+0xd2 sys/kern/vfs_subr.c:825 #11 ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124 #12 ktrops+0x1a4 sys/kern/kern_ktrace.c:550 #13 doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline] #13 doktrace+0x514 sys/kern/kern_ktrace.c:494 #14 sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535 #15 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #15 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #16 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10149 6454K 6455K 78643K 11239 0 pcb 13 8K 8K 78643K 13 0 rtable 58 1K 2K 78643K 108 0 ifaddr 29 8K 8K 78643K 32 0 counters 40 33K 33K 78643K 40 0 ioctlops 0 0K 4K 78643K 1479 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1167 73K 73K 78643K 1180 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 1 0K 0K 78643K 1 0 proc 67 91K 91K 78643K 282 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 0K 78643K 11 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 25 122K 122K 78643K 25 0 exec 0 0K 2K 78643K 432 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 82 5K 5K 78643K 2324 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 4 0K 0K 78643K 4 0 temp 23 4713K 4777K 78643K 3980 0 kqueue 11 16K 18K 78643K 24 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 17 0 14 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 136 1517 0 1502 1 0 1 1 0 8 0 syncache 296 5 0 5 2 1 1 1 0 8 1 tcpcb 736 8 0 5 1 0 1 1 0 8 0 arp 120 2 0 0 1 0 1 1 0 8 0 inpcb 312 32 0 26 1 0 1 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 9 0 2 1 0 1 1 0 8 0 pfstkey 112 9 0 2 1 0 1 1 0 8 0 pfstate 336 9 0 2 1 0 1 1 0 8 0 pfrule 1360 21 0 15 2 0 2 2 0 8 0 rttmrq 48 6 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 96 0 0 6 0 6 6 0 8 0 art_table 32 97 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2918 0 1232 106 0 106 106 0 8 0 ffsino 272 2918 0 1232 113 0 113 113 0 8 0 nchpl 144 4590 0 2997 60 0 60 60 0 8 0 uvmvnodes 80 2928 0 0 60 0 60 60 0 8 0 vnodes 224 2928 0 0 173 0 173 173 0 8 0 namei 1024 11886 0 11885 3 1 2 2 0 8 1 percpumem 16 32 0 0 1 0 1 1 0 8 0 kstatmem 264 8 0 0 1 0 1 1 0 8 0 scxspl 216 11190 0 11189 10 7 3 8 0 8 2 plimitpl 152 16 0 9 1 0 1 1 0 8 0 sigapl 424 1071 0 1027 6 0 6 6 0 8 0 knotepl 120 50 0 0 2 0 2 2 0 8 0 kqueuepl 216 20 0 13 1 0 1 1 0 8 0 pipepl 336 86 0 83 2 1 1 1 0 8 0 fdescpl 496 1057 0 1031 4 0 4 4 0 8 0 filepl 152 4142 0 4081 3 0 3 3 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 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 69 0 57 1 0 1 1 0 8 0 zombiepl 144 1031 0 1027 2 1 1 1 0 8 0 processpl 1064 1071 0 1027 4 0 4 4 0 8 0 procpl 672 1071 0 1027 4 0 4 4 0 8 0 sockpl 480 1566 0 1542 5 1 4 4 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 62 0 0 8 0 8 8 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 117 0 0 7 0 7 7 0 8 0 bufpl 288 3512 0 93 245 0 245 245 0 8 0 anonpl 24 44085 0 41456 20 4 16 16 0 186 0 amapchunkpl 152 3646 0 3508 7 1 6 6 0 158 0 amappl16 200 846 0 832 1 0 1 1 0 8 0 amappl13 176 35 0 34 2 1 1 1 0 8 0 amappl12 168 5 0 4 1 0 1 1 0 8 0 amappl11 160 66 0 49 1 0 1 1 0 8 0 amappl10 152 3 0 1 1 0 1 1 0 8 0 amappl9 144 487 0 485 1 0 1 1 0 8 0 amappl8 136 366 0 365 2 1 1 1 0 8 0 amappl7 128 53 0 49 1 0 1 1 0 8 0 amappl6 120 105 0 94 1 0 1 1 0 8 0 amappl5 112 107 0 86 1 0 1 1 0 8 0 amappl4 104 627 0 607 1 0 1 1 0 8 0 amappl3 96 1123 0 1092 1 0 1 1 0 8 0 amappl2 88 454 0 416 1 0 1 1 0 8 0 amappl1 80 12460 0 11987 13 3 10 10 0 8 0 amappl 88 2036 0 1979 3 1 2 2 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 1057 0 1031 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1057 0 1031 1 0 1 1 0 8 0 vmmpekpl 168 7906 0 7887 1 0 1 1 0 8 0 vmmpepl 168 50175 0 48980 59 4 55 55 0 357 3 vmsppl 368 1056 0 1031 3 0 3 3 0 8 0 rwobjpl 56 11988 0 8424 52 1 51 51 0 8 0 pdppl 4096 2121 0 2062 85 22 63 63 0 8 4 pvpl 32 166128 0 161233 47 6 41 41 0 265 0 pmappl 248 1056 0 1031 2 0 2 2 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 592 0 26 17 0 17 17 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8295bff0) 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(ffffffff82a017f0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82a017f0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff8000211d3fc0,ffff80000004bd00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f __mp_lock(ffffffff82a017f0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82a017f0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff8000211d4190) at syscall+0x3ef mi_syscall sys/sys/syscall_mi.h:93 [inline] syscall(ffff8000211d4190) at syscall+0x3ef sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc49a0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at ktrops+0x4a: movq 0x8(%rbx),%r14 ddb{1}> trace ktrops(ffff8000211bad20,deadbeefdeadbeef,0,c0001000,fffffd806c604678,fffffd807f7d77e0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline] ktrops(ffff8000211bad20,deadbeefdeadbeef,0,c0001000,fffffd806c604678,fffffd807f7d77e0) at ktrops+0x4a sys/kern/kern_ktrace.c:547 doktrace(fffffd806c604678,4,40001000,0,ffff8000211bad20) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline] doktrace(fffffd806c604678,4,40001000,0,ffff8000211bad20) at doktrace+0x514 sys/kern/kern_ktrace.c:494 sys_ktrace(ffff8000211bad20,ffff800021204438,ffff800021204490) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535 syscall(ffff800021204500) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021204500) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc4e90, count: -5 ddb{1}>