panic: uWvmAR_NfaIuNGl:t _SuPnLw NOiT rLeO_WlocEkReEDd :O Na dSdYrSeCsAsL Ln o7t3 i4n87 4m2a4p EXStIaTr ti0n ga stStopped at savectx+0xae: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND 117127 13950 0 0 0x4000000 1K syz-executor *318550 13950 0 0 0x4000000 0 syz-executor savectx() at savectx+0xae end of kernel end trace frame: 0xa9122165590, count: 14 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu1: uvm_fault_unwire_locked: address not in map ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0xa9122165590, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002a2f0370 rbx 0 rdx 0xffff800001473a40 rcx 0xffff8000fffea2b8 rax 0x37 r8 0xffff80002a2f02a0 r9 0 r10 0x41ee2fdafefacb2 r11 0x1abcb40f8d58d5bd r12 0 r13 0 r14 0xffff8000fffea2b8 r15 0 rip 0xffffffff81b983ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff80002a2f02f0 ss 0x10 savectx+0xae: movl $0,%gs:0x688 ddb{0}> show proc PROC (syz-executor) tid=318550 pid=13950 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffeaf88,0xffffffff83a07620 process=0xffff800030fd6bb8 user=0xffff80002a2eb000, vmspace=0xfffffd806c0437a0 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 13950 366335 13502 0 2 0 syz-executor 13950 117127 13502 0 7 0x4000000 syz-executor *13950 318550 13502 0 7 0x4000000 syz-executor 59529 174036 39832 0 2 0 syz-executor 59529 372176 39832 0 3 0x4000000 biowait syz-executor 76932 148049 12932 0 3 0x80 nanoslp syz-executor 76932 77474 12932 0 3 0x4000080 kqpoll syz-executor 76932 318903 12932 0 3 0x4000080 fsleep syz-executor 76932 85580 12932 0 3 0x4000080 fsleep syz-executor 75944 184993 41583 0 3 0x80 nanoslp syz-executor 75944 120833 41583 0 3 0x4000080 bell syz-executor 75944 272526 41583 0 3 0x4000080 fsleep syz-executor 838 433845 20342 0 3 0x82 piperd syz-executor 41583 438441 20342 0 3 0x82 nanoslp syz-executor 58777 355946 1 0 3 0x100083 ttyin getty 56299 193120 20342 0 3 0x82 piperd syz-executor 98837 126713 20342 0 3 0x82 wait syz-executor 79315 88582 0 0 3 0x14200 bored sosplice 13502 144246 20342 0 3 0x82 nanoslp syz-executor 39832 520 20342 0 3 0x82 nanoslp syz-executor 12932 403829 20342 0 3 0x82 nanoslp syz-executor 20342 479021 63035 0 3 0x82 wait syz-executor 63035 451875 32560 0 3 0x10008a sigsusp ksh 32560 228004 2387 0 3 0x98 kqread sshd-session 2387 347826 2327 0 3 0x92 kqread sshd-session 2327 469636 1 0 3 0x88 kqread sshd 86837 419783 87705 74 3 0x1100092 bpf pflogd 87705 322461 1 0 3 0x80 sbwait pflogd 90854 218279 93722 73 3 0x1100090 kqread syslogd 93722 357564 1 0 3 0x100082 sbwait syslogd 89829 42259 1 0 3 0x100080 kqread resolvd 25214 246648 97783 77 3 0x100092 kqread dhcpleased 52463 263570 97783 77 3 0x100092 kqread dhcpleased 97783 284825 1 0 3 0x80 kqread dhcpleased 2953 78611 0 0 3 0x14200 bored smr 78311 330035 0 0 3 0x14200 pgzero zerothread 33438 278628 0 0 3 0x14200 aiodoned aiodoned 44045 9097 0 0 3 0x14200 syncer update 54707 349078 0 0 3 0x14200 cleaner cleaner 32587 195253 0 0 3 0x14200 reaper reaper 66451 274151 0 0 3 0x14200 pgdaemon pagedaemon 62368 214985 0 0 3 0x14200 bored viomb 95576 41121 0 0 3 0x40014200 acpi0 acpi0 32315 254169 0 0 3 0x40014200 idle1 15624 66047 0 0 3 0x14200 bored softnet3 39563 51716 0 0 3 0x14200 bored softnet2 38608 516783 0 0 3 0x14200 bored softnet1 93179 74324 0 0 3 0x14200 bored softnet0 2449 473748 0 0 3 0x14200 bored systqmp 41211 489527 0 0 3 0x14200 bored systq 28900 306532 0 0 3 0x14200 tmoslp softclockmp 33816 504098 0 0 3 0x40014200 tmoslp softclock 858 211112 0 0 3 0x40014200 idle0 1 255501 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff83944278) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 uvm_pmr_freepages+0x1a8 sys/uvm/uvm_pmemrange.c:1323 #4 uvm_anfree_list+0x1e3 sys/uvm/uvm_anon.c:120 #5 amap_wiperange_chunk+0x1a8 sys/uvm/uvm_amap.c:961 #6 amap_pp_adjref+0x6f4 sys/uvm/uvm_amap.c:922 #7 amap_adjref_anons+0x22d sys/uvm/uvm_amap.c:1300 #8 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #9 sys_munmap+0x32f sys/uvm/uvm_mmap.c:544 #10 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:637 #11 Xsyscall+0x128 Process 13950 (syz-executor) thread 0xffff8000ffff0f80 (117127) shared rwlock vmmaplk r = 0 (0xfffffd806c0438a0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x36e sys/kern/kern_rwlock.c:397 #2 uvm_fault_wire+0x116 uvm_fault_unwire sys/uvm/uvm_fault.c:1765 [inline] #2 uvm_fault_wire+0x116 sys/uvm/uvm_fault.c:1748 #3 uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 #4 physio+0x277 sys/kern/kern_physio.c:139 #5 spec_read+0x155 sys/kern/spec_vnops.c:215 #6 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #7 vn_read+0x17b sys/kern/vfs_vnops.c:369 #8 dofilereadv+0x230 sys/kern/sys_generic.c:252 #9 sys_pread+0xae sys/kern/vfs_syscalls.c:3303 #10 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:637 #11 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839d67d8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2da sys/kern/kern_synch.c:366 #3 rw_do_enter_read+0x2ac sys/kern/kern_rwlock.c:379 #4 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1924 #5 uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 #6 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #7 uvm_fault_wire+0x73 sys/uvm/uvm_fault.c:1745 #8 uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 #9 physio+0x277 sys/kern/kern_physio.c:139 #10 spec_read+0x155 sys/kern/spec_vnops.c:215 #11 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #12 vn_read+0x17b sys/kern/vfs_vnops.c:369 #13 dofilereadv+0x230 sys/kern/sys_generic.c:252 #14 sys_pread+0xae sys/kern/vfs_syscalls.c:3303 #15 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #15 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:637 #16 Xsyscall+0x128 Process 13950 (syz-executor) thread 0xffff8000fffea2b8 (318550) exclusive rwlock amaplk r = 0 (0xfffffd80793d74e8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 amap_unref+0x3d sys/uvm/uvm_amap.c:1331 #3 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #4 sys_munmap+0x32f sys/uvm/uvm_mmap.c:544 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:637 #6 Xsyscall+0x128 exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff83944278) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 uvm_pmr_freepages+0x1a8 sys/uvm/uvm_pmemrange.c:1323 #4 uvm_anfree_list+0x1e3 sys/uvm/uvm_anon.c:120 #5 amap_wiperange_chunk+0x1a8 sys/uvm/uvm_amap.c:961 #6 amap_pp_adjref+0x6f4 sys/uvm/uvm_amap.c:922 #7 amap_adjref_anons+0x22d sys/uvm/uvm_amap.c:1300 #8 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #9 sys_munmap+0x32f sys/uvm/uvm_mmap.c:544 #10 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:637 #11 Xsyscall+0x128 Process 59529 (syz-executor) thread 0xffff8000fffeaf88 (372176) exclusive rrwlock inode r = 0 (0xfffffd806bfde898) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x190 sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x23c sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:637 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10246 11057K 12621K 166960K 15992 0 pcb 17 14K 16K 166960K 774 0 rtable 188 19K 20K 166960K 1373 0 pf 34 17K 19K 166960K 253 0 ifaddr 32 5K 7K 166960K 245 0 ifgroup 55 2K 3K 166960K 373 0 sysctl 4 1K 9K 166960K 26 0 counters 68 36K 38K 166960K 500 0 ioctlops 0 0K 4K 166960K 2110 0 iov 0 0K 28K 166960K 246 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1442 91K 91K 166960K 4410 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 52 0 VM map 2 1K 1K 166960K 2 0 sem 11 0K 0K 166960K 290 0 dirhash 12 2K 2K 166960K 57 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 240K 166960K 3392 0 sigio 0 0K 0K 166960K 78 0 proc 73 91K 128K 166960K 1568 0 subproc 72 4K 4K 166960K 307 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 515 0 in_multi 57 4K 7K 166960K 457 0 ether_multi 1 0K 0K 166960K 32 0 mrt 2 0K 0K 166960K 22 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 259 1155K 1155K 166960K 259 0 exec 0 0K 1K 166960K 1387 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 238 174K 178K 166960K 30424 0 UVM aobj 69 5K 5K 166960K 78 0 pinsyscall 40 80K 104K 166960K 5163 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 1K 166960K 362 0 NDP 14 0K 1K 166960K 175 0 temp 78 8696K 9100K 166960K 122639 0 kqueue 13 20K 36K 166960K 564 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 348 0 345 4 3 1 3 0 8 0 rtentry 176 453 0 384 5 0 5 5 0 8 0 unpcb 144 1888 0 1871 12 11 1 6 0 8 0 syncache 336 11 0 11 5 5 0 1 0 8 0 tcpqe 32 2 0 2 1 1 0 1 0 8 0 tcpcb 736 1072 0 1068 21 20 1 7 0 8 0 arp 128 77 0 63 1 0 1 1 0 8 0 inpcb 328 3454 0 3445 30 28 2 7 0 8 0 nd6 144 109 0 92 1 0 1 1 0 8 0 pkpcb 40 60 0 60 8 8 0 2 0 8 0 kcovpl 48 34 0 26 1 0 1 1 0 8 0 ppxss 1192 162 0 162 6 5 1 1 0 8 1 pppxif 1504 19 0 19 4 4 0 1 0 8 0 pffrag 232 34 0 27 1 0 1 1 0 482 0 pffrnode 88 32 0 25 1 0 1 1 0 8 0 pffrent 40 60 0 53 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 24 192 0 107 1 0 1 1 0 8 0 pfstkey 128 192 0 107 4 0 4 4 0 8 0 pfstate 384 192 0 107 10 0 10 10 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 rttmr 136 3 0 3 3 3 0 1 0 8 0 art_heap8 4096 5 0 0 5 0 5 5 0 8 0 art_heap4 256 1804 0 1526 29 11 18 29 0 8 0 art_table 32 1809 0 1526 4 0 4 4 0 8 0 art_node 16 442 0 382 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 11 1 0 1 1 0 8 0 semapl 112 287 0 278 1 0 1 1 0 8 0 shmpl 112 75 0 9 2 0 2 2 0 8 0 dirhash 1024 47 0 30 3 0 3 3 0 8 0 dino2pl 256 7346 0 5792 98 0 98 98 0 8 0 ffsino 288 7346 0 5792 112 0 112 112 0 8 0 nchpl 144 11734 0 11106 65 39 26 65 0 8 0 rtmask 32 8 0 8 5 5 0 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 41553 0 41553 4 3 1 2 0 8 1 percpumem 16 265 0 216 1 0 1 1 0 8 0 kstatmem 264 220 0 190 5 2 3 3 0 8 0 scsiplug 72 13 0 13 7 7 0 1 0 8 0 scxspl 216 121268 0 121267 18 17 1 8 1 8 0 plimitpl 152 844 0 826 1 0 1 1 0 8 0 sigapl 424 3648 0 3600 12 5 7 9 0 8 1 knotepl 120 640 0 0 18 0 18 18 0 8 0 kqueuepl 224 1455 0 1445 19 18 1 5 0 8 0 pipepl 336 629 0 536 8 0 8 8 0 8 0 fdescpl 520 3603 0 3574 3 0 3 3 0 8 0 filepl 160 23350 0 23000 25 10 15 16 0 8 0 lockfpl 104 1511 0 1509 2 1 1 2 0 8 0 lockfspl 48 591 0 589 1 0 1 1 0 8 0 sessionpl 144 57 0 48 1 0 1 1 0 8 0 pgrppl 48 181 0 164 1 0 1 1 0 8 0 ucredpl 104 4131 0 4117 1 0 1 1 0 8 0 zombiepl 144 3602 0 3600 2 1 1 1 0 8 0 processpl 1240 3648 0 3600 6 1 5 6 0 8 0 procpl 656 8569 0 8513 10 3 7 9 0 8 0 srpgc 96 24 0 24 6 6 0 1 0 8 0 sosppl 168 26 0 26 6 5 1 1 0 8 1 sockpl 728 5826 0 5797 50 46 4 15 0 8 1 mcl64k 65536 9 0 0 2 0 2 2 0 8 0 mcl16k 16384 11 0 0 2 0 2 2 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 110 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 40 0 0 5 0 5 5 0 8 0 mtagpl 96 27 0 0 1 0 1 1 0 8 0 mbufpl 256 1290 0 0 75 0 75 75 0 8 0 bufpl 280 52158 0 46015 440 1 439 440 0 8 0 anonpl 32 15472 0 0 125 0 125 125 0 246 0 amapchunkpl 152 106415 0 105886 76 47 29 33 0 158 3 amappl16 200 17939 0 17889 139 127 12 34 0 8 3 amappl15 192 23 0 22 1 0 1 1 0 8 0 amappl14 184 176 0 164 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 4671 0 4642 4 2 2 3 0 8 0 amappl11 160 61 0 47 1 0 1 1 0 8 0 amappl10 152 10 0 9 2 1 1 1 0 8 0 amappl9 144 263 0 263 1 1 0 1 0 8 0 amappl8 136 25 0 22 1 0 1 1 0 8 0 amappl7 128 184 0 171 1 0 1 1 0 8 0 amappl6 120 445 0 441 1 0 1 1 0 8 0 amappl5 112 231 0 221 1 0 1 1 0 8 0 amappl4 104 424 0 402 1 0 1 1 0 8 0 amappl3 96 21577 0 21467 4 0 4 4 0 8 0 amappl2 88 1124 0 1060 2 0 2 2 0 8 0 amappl1 80 24939 0 24338 16 0 16 16 0 8 0 amappl 88 28681 0 28519 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma32768 32768 2 0 2 2 2 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 9 0 9 4 4 0 1 0 8 0 dma128 128 259 0 259 6 6 0 1 0 8 0 dma64 64 8 0 8 2 2 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 77 0 9 2 0 2 2 0 8 0 uaddrrnd 24 3603 0 3574 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3603 0 3574 1 0 1 1 0 8 0 vmmpekpl 168 26994 0 26923 4 0 4 4 0 8 0 vmmpepl 168 238617 0 236659 143 37 106 117 0 357 0 vmsppl 480 3602 0 3574 5 0 5 5 0 8 0 rwobjpl 72 70905 0 63941 143 8 135 136 0 8 0 pdppl 4096 7214 0 7148 142 68 74 86 0 8 8 pvpl 32 21942 0 0 178 1 177 177 0 265 0 pmappl 256 3602 0 3574 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 539 0 116 13 0 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0xa9122165590, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) 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:666 acpitimer_delay(1) at acpitimer_delay+0x77 acpitimer_read sys/dev/acpi/acpitimer.c:142 [inline] acpitimer_delay(1) at acpitimer_delay+0x77 sys/dev/acpi/acpitimer.c:120 comcnputc(800,74) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(74) at cnputc+0x61 sys/dev/cons.c:218 kputchar(74,5,0) at kputchar+0x2cc sys/kern/subr_prf.c:367 kprintf() at kprintf+0x843 sys/kern/subr_prf.c:-1 printf(ffffffff833b7874) at printf+0x8b sys/kern/subr_prf.c:529 db_stack_dump() at db_stack_dump+0x7c sys/ddb/db_output.c:241 panic(ffffffff83437ebe) at panic+0x1d0 sys/kern/subr_prf.c:229 uvm_fault_unwire_locked(fffffd806c0437a0,2000000e0000,2000000e9000) at uvm_fault_unwire_locked+0x4de uvm_fault_wire(fffffd806c0437a0,2000000e0000,2000000f1000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1766 [inline] uvm_fault_wire(fffffd806c0437a0,2000000e0000,2000000f1000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1748 end trace frame: 0xffff80002a7fc150, count: 0 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) 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:666 acpitimer_delay(1) at acpitimer_delay+0x77 acpitimer_read sys/dev/acpi/acpitimer.c:142 [inline] acpitimer_delay(1) at acpitimer_delay+0x77 sys/dev/acpi/acpitimer.c:120 comcnputc(800,74) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(74) at cnputc+0x61 sys/dev/cons.c:218 kputchar(74,5,0) at kputchar+0x2cc sys/kern/subr_prf.c:367 kprintf() at kprintf+0x843 sys/kern/subr_prf.c:-1 printf(ffffffff833b7874) at printf+0x8b sys/kern/subr_prf.c:529 db_stack_dump() at db_stack_dump+0x7c sys/ddb/db_output.c:241 panic(ffffffff83437ebe) at panic+0x1d0 sys/kern/subr_prf.c:229 uvm_fault_unwire_locked(fffffd806c0437a0,2000000e0000,2000000e9000) at uvm_fault_unwire_locked+0x4de uvm_fault_wire(fffffd806c0437a0,2000000e0000,2000000f1000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1766 [inline] uvm_fault_wire(fffffd806c0437a0,2000000e0000,2000000f1000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1748 uvm_vslock_device(ffff8000ffff0f80,2000000e0040,10000,3,ffff80002a7fc1a0) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff830d9920,d02,8000,ffffffff830da180,ffff80002a7fc458) at physio+0x277 sys/kern/kern_physio.c:139 spec_read(ffff80002a7fc2c0) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd805ee74100,ffff80002a7fc458,0,fffffd80097fb478) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd805c931ac8,ffff80002a7fc458,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff8000ffff0f80,4,ffff80002a7fc458,1,ffff80002a7fc510) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_pread(ffff8000ffff0f80,ffff80002a7fc5c0,ffff80002a7fc510) at sys_pread+0xae sys/kern/vfs_syscalls.c:3303 syscall(ffff80002a7fc5c0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a7fc5c0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:637 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa9144e96120, count: -23