*cpu1: uvm_fault(0xfffff7006cf0c7b8, 0x98, 0, 1) -> e ddb{0}> show kasan No such command ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7582ae92e070, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003c3d3700 rbx 0 rdx 0 rcx 0xffff800033b982b8 rax 0x2a r8 0xffff80003c3d3630 r9 0 r10 0x936f1f7c03a7643 r11 0x40d9e68a74160541 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff816804c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80003c3d3680 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{0}> show proc PROC (sh) tid=478212 pid=37897 tcnt=1 stat=onproc flags process=100000 proc=0 runpri=52, usrpri=52, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800045fefa08,0xffff800033b994f0 process=0xffff80002a37eb68 user=0xffff80003c3ce000, vmspace=0xfffff7006b23cd78 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 82568 270016 25304 0 2 0 0 syz-executor 82568 317231 25304 0 7 0 0x4000000 syz-executor *37897 478212 93418 0 7 0x100000 0 sh 93418 323642 96883 0 3 0x100002 0x88 sigsusp sh 4373 385808 68011 0 2 0 0 syz-executor 4373 62262 68011 0 3 0 0x4000080 fsleep syz-executor 4373 233604 68011 0 3 0 0x4000080 fsleep syz-executor 49699 210583 79811 0 2 0x100002 0 ndp 3101 375264 84926 0 2 0x100002 0 sh 79811 399326 64799 0 3 0x100002 0x88 sigsusp sh 29091 59729 62605 0 2 0x2 0 ifconfig 62605 447281 59394 0 3 0x100002 0x88 sigsusp sh 75472 383228 70746 0 2 0x100002 0 sh 35401 505490 46 0 2 0x100002 0 arp 46 345157 41927 0 3 0x100002 0x88 sigsusp sh 68011 346320 12714 0 3 0x2 0x80 nanoslp syz-executor 25304 145094 12714 0 3 0x2 0x80 nanoslp syz-executor 64799 110495 12714 0 3 0x2 0x80 wait syz-executor 70746 230486 12714 0 3 0x2 0x80 wait syz-executor 84926 152195 12714 0 3 0x2 0x80 wait syz-executor 59394 182877 12714 0 3 0x2 0x80 wait syz-executor 96883 320393 12714 0 3 0x2 0x80 wait syz-executor 41927 503645 12714 0 3 0x2 0x80 wait syz-executor 12714 159437 21969 0 3 0x2 0x80 kqread syz-executor 21969 510607 28931 0 3 0x100002 0x88 sigsusp ksh 28931 196818 16234 0 3 0x10 0x88 kqread sshd-session 16234 98117 6039 0 3 0x12 0x80 kqread sshd-session 24480 337418 1 0 3 0x100003 0x80 ttyin getty 6039 204737 1 0 3 0 0x88 kqread sshd 26269 265513 26061 74 3 0x1100012 0x80 bpf pflogd 26061 353417 1 0 3 0 0x80 sbwait pflogd 80033 17728 76410 73 3 0x1100010 0x80 kqread syslogd 76410 413590 1 0 3 0x100002 0x80 sbwait syslogd 83809 139817 1 0 3 0x100000 0x80 kqread resolvd 18330 61246 10354 77 3 0x100012 0x80 kqread dhcpleased 3645 446910 10354 77 3 0x100012 0x80 kqread dhcpleased 10354 364652 1 0 3 0 0x80 kqread dhcpleased 69335 413423 0 0 3 0x14000 0x200 bored smr 42275 481338 0 0 2 0x14000 0x200 zerothread 9581 451812 0 0 3 0x14000 0x200 aiodoned aiodoned 91551 248986 0 0 3 0x14000 0x200 syncer update 23534 300422 0 0 3 0x14000 0x200 cleaner cleaner 19107 96676 0 0 3 0x14000 0x200 reaper reaper 90055 451649 0 0 3 0x14000 0x200 pgdaemon pagedaemon 55186 343083 0 0 3 0x14000 0x200 bored viomb 50588 210692 0 0 3 0x14000 0x40000200 acpi0 acpi0 35616 464831 0 0 3 0x14000 0x40000200 idle1 6979 211028 0 0 3 0x14000 0x200 bored softnet1 24707 448557 0 0 3 0x14000 0x200 bored softnet0 26549 189654 0 0 3 0x14000 0x200 smrbar systqmp 80764 193785 0 0 3 0x14000 0x200 bored systq 48457 174260 0 0 3 0x14000 0x200 tmoslp softclockmp 58042 322017 0 0 3 0x14000 0x40000200 tmoslp softclock 48241 142502 0 0 3 0x14000 0x40000200 idle0 1 431092 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffff7006b179a10) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 pmap_extract+0x68 pmap_find_pte_direct sys/arch/amd64/amd64/pmap.c:476 [inline] #2 pmap_extract+0x68 sys/arch/amd64/amd64/pmap.c:1584 #3 uvm_fault_upper_lookup+0x20b sys/uvm/uvm_fault.c:975 #4 uvm_fault+0x159 sys/uvm/uvm_fault.c:632 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 Process 82568 (syz-executor) thread 0xffff800033b99778 (317231) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a8ed40) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] #1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783 #2 Xsyscall+0x128 Process 37897 (sh) thread 0xffff800033b982b8 (478212) shared rwlock amaplk r = 0 (0xfffff70066793ea0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvm_fault_check+0x8a9 sys/uvm/uvm_fault.c:834 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #5 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #6 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffff7006b23ce78) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffff7006b179a10) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 pmap_extract+0x68 pmap_find_pte_direct sys/arch/amd64/amd64/pmap.c:476 [inline] #2 pmap_extract+0x68 sys/arch/amd64/amd64/pmap.c:1584 #3 uvm_fault_upper_lookup+0x20b sys/uvm/uvm_fault.c:975 #4 uvm_fault+0x159 sys/uvm/uvm_fault.c:632 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 Process 26549 (systqmp) thread 0xffff800045ffe000 (189654) shared rwlock systqmp r = 0 (0xffffffff83935388) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11050 12084K 12084K 166960K 12141 0 pcb 17 12K 12K 166960K 17 0 rtable 202 5K 6K 166960K 294 0 pf 34 17K 18K 166960K 45 0 ifaddr 39 6K 6K 166960K 41 0 ifgroup 55 2K 2K 166960K 55 0 sysctl 1 1K 9K 166960K 5 0 counters 70 37K 37K 166960K 70 0 ioctlops 0 0K 4K 166960K 1482 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1290 81K 81K 166960K 1359 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 1734 201K 291K 166960K 11964 0 file desc 22 81K 89K 166960K 126 0 proc 70 115K 147K 166960K 538 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 1 0 in_multi 79 5K 5K 166960K 79 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 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 374 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 233 167K 170K 166960K 2877 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 49 98K 105K 166960K 1259 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 24 1K 1K 166960K 24 0 temp 34 9114K 9120K 166960K 3801 0 kqueue 13 20K 20K 166960K 25 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 28 0 0 1 0 1 1 0 8 0 rtpcb 120 28 0 23 1 0 1 1 0 8 0 rtentry 176 93 0 1 5 0 5 5 0 8 0 unpcb 144 39 0 22 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 10 0 5 1 0 1 1 0 8 0 arp 136 18 0 0 1 0 1 1 0 8 0 inpcb 328 65 0 57 1 0 1 1 0 8 0 nd6 152 14 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 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 pfrktable 1344 1 0 1 1 0 1 1 0 8 1 pfstitem 24 16 0 0 1 0 1 1 0 8 0 pfstkey 128 16 0 0 1 0 1 1 0 8 0 pfstate 448 16 0 0 2 0 2 2 0 8 0 pfrule 1360 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 256 368 0 0 23 0 23 23 0 8 0 art_table 40 369 0 0 4 0 4 4 0 8 0 art_node 32 93 0 5 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1560 0 96 92 0 92 92 0 8 0 ffsino 296 1560 0 96 113 0 113 113 0 8 0 nchpl 144 1754 0 59 63 0 63 63 0 8 0 vnodes 216 1648 0 0 92 0 92 92 0 8 0 namei 1024 5323 0 5323 1 0 1 1 0 8 1 percpumem 16 51 0 0 1 0 1 1 0 8 0 kstatmem 264 27 0 0 2 0 2 2 0 8 0 scxspl 216 6067 0 6067 3 1 2 2 1 8 2 plimitpl 152 29 0 12 1 0 1 1 0 8 0 sigapl 424 443 0 391 7 0 7 7 0 8 0 knotepl 120 53 0 0 2 0 2 2 0 8 0 kqueuepl 224 21 0 12 1 0 1 1 0 8 0 pipepl 344 127 0 100 3 0 3 3 0 8 0 fdescpl 528 427 0 391 3 0 3 3 0 8 0 filepl 160 1543 0 1326 10 0 10 10 0 8 0 lockfpl 104 7 0 4 1 0 1 1 0 8 0 lockfspl 48 5 0 2 1 0 1 1 0 8 0 sessionpl 144 24 0 15 1 0 1 1 0 8 0 pgrppl 48 32 0 15 1 0 1 1 0 8 0 ucredpl 104 84 0 71 1 0 1 1 0 8 0 zombiepl 144 391 0 391 1 0 1 1 0 8 1 processpl 1232 443 0 391 5 0 5 5 0 8 0 procpl 664 449 0 394 5 0 5 5 0 8 0 sockpl 752 133 0 103 4 0 4 4 0 8 1 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 119 0 0 15 0 15 15 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mextrefs 64 20 0 0 1 0 1 1 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 155 0 0 10 0 10 10 0 8 0 bufpl 272 2264 0 105 144 0 144 144 0 8 0 anonpl 32 3795 0 0 31 0 31 31 0 247 0 amapchunkpl 152 7836 0 7408 17 0 17 17 0 158 0 amappl16 200 1713 0 1704 5 0 5 5 0 8 4 amappl15 192 22 0 21 1 0 1 1 0 8 0 amappl14 184 472 0 464 1 0 1 1 0 8 0 amappl13 176 137 0 122 1 0 1 1 0 8 0 amappl12 168 673 0 639 2 0 2 2 0 8 0 amappl11 160 3 0 3 1 0 1 1 0 8 1 amappl10 152 63 0 49 1 0 1 1 0 8 0 amappl9 144 289 0 289 1 0 1 1 0 8 1 amappl8 136 97 0 95 1 0 1 1 0 8 0 amappl7 128 146 0 131 1 0 1 1 0 8 0 amappl6 120 164 0 156 1 0 1 1 0 8 0 amappl5 112 98 0 88 1 0 1 1 0 8 0 amappl4 104 282 0 261 1 0 1 1 0 8 0 amappl3 96 1376 0 1284 3 0 3 3 0 8 0 amappl2 88 542 0 466 2 0 2 2 0 8 0 amappl1 80 10239 0 9566 15 0 15 15 0 8 0 amappl 88 2187 0 2039 4 0 4 4 0 92 0 uvmvnodes 80 99 0 0 3 0 3 3 0 8 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 24 427 0 391 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 427 0 391 1 0 1 1 0 8 0 vmmpekpl 168 5531 0 5498 2 0 2 2 0 8 0 vmmpepl 168 36887 0 34971 86 0 86 86 0 357 1 vmsppl 488 426 0 391 5 0 5 5 0 8 0 rwobjpl 80 14166 0 13046 24 0 24 24 0 8 0 pdppl 4096 861 0 782 95 12 83 83 0 8 4 pvpl 32 9377 0 0 76 0 76 76 0 265 0 pmappl 256 426 0 391 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 400 0 15 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7582ae92e070, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff80002999dff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:682 acpitimer_delay(1) at acpitimer_delay+0x57 acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline] acpitimer_delay(1) at acpitimer_delay+0x57 sys/dev/acpi/acpitimer.c:120 comcnputc(800,29) at comcnputc+0x29b sys/dev/ic/com.c:1274 cnputc(29) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(29) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83460681) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8351d362) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c3edbb0,98) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c3edbb0) at kerntrap+0x19d sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0xffff80003c3edd60, count: 0 ddb{1}> trace x86_ipi_db(ffff80002999dff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:682 acpitimer_delay(1) at acpitimer_delay+0x57 acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline] acpitimer_delay(1) at acpitimer_delay+0x57 sys/dev/acpi/acpitimer.c:120 comcnputc(800,29) at comcnputc+0x29b sys/dev/ic/com.c:1274 cnputc(29) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(29) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83460681) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8351d362) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80003c3edbb0,98) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80003c3edbb0) at kerntrap+0x19d sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dovutimens(ffff800033b99778,fffff7006b21e000,ffff80003c3edd70) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2691 sys_futimens(ffff800033b99778,ffff80003c3edec0,ffff80003c3ede10) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2767 syscall(ffff80003c3edec0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3edec0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x25bd81f33a0, count: -18