uvm_fault(0xfffffd806eefb7a8, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 TID PID UID PRFLAGS PFLAGS CPU COMMAND 186484 7590 0 0 0x4000000 0 syz-executor dt_ioctl_record_stop(ffff800001663000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,81,2000,ffff80003ac1f738) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003ac1f738) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a39efa0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061b01c20,81,fffffd80097fb750,ffff80003ac1f738) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806162a0e0,ffff80003ac1f738) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806162a0e0,ffff80003ac1f738) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806162a0e0,ffff80003ac1f738) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806162a0e0,ffff80003ac1f738) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80003ac1f738) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80003ac1f738,b,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003ac1f738,ffff80002a39f310,ffff80002a39f260) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a39f310) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a39f310) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x74d201733660, count: 3 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd806eefb7a8, 0x0, 0, 1) -> e ddb{1}> trace dt_ioctl_record_stop(ffff800001663000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,81,2000,ffff80003ac1f738) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003ac1f738) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a39efa0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061b01c20,81,fffffd80097fb750,ffff80003ac1f738) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806162a0e0,ffff80003ac1f738) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806162a0e0,ffff80003ac1f738) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806162a0e0,ffff80003ac1f738) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806162a0e0,ffff80003ac1f738) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80003ac1f738) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80003ac1f738,b,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003ac1f738,ffff80002a39f310,ffff80002a39f260) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a39f310) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a39f310) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x74d201733660, count: -12 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a39eed0 rbx 0xffffffff81f91b40 dtclose rdx 0 rcx 0xffff80003ac1f738 rax 0xffffffff83852588 dt_prov_syscall r8 0xffffffffffffffff r9 0x1 r10 0x461ab59e15f8e962 r11 0x8bdfe2ba1e307b2b r12 0xffff80000006b780 r13 0 r14 0 r15 0xffff80000149e600 rip 0xffffffff81f91f20 dt_ioctl_record_stop+0xf0 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff80002a39eea0 ss 0 dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 ddb{1}> show proc PROC (syz-executor) tid=379504 pid=16188 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003ac1f738 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003ac1ecf8,0xffff8000ffff2540 process=0xffff800038c15880 user=0xffff80002a39a000, vmspace=0xfffffd806eefb7a8 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 7590 521605 72492 0 2 0 syz-executor 7590 186484 72492 0 7 0x4000000 syz-executor 62786 124978 99853 0 2 0 syz-executor 62786 99695 99853 0 3 0x4000080 pipewr syz-executor 62786 114880 99853 0 3 0x4000080 pipewr syz-executor 86857 362013 41562 0 2 0 syz-executor 86857 318184 41562 0 3 0x4000080 fsleep syz-executor 91455 207937 47641 0 2 0 syz-executor 91455 408533 47641 0 3 0x4000080 fsleep syz-executor 91455 434616 47641 0 3 0x4000000 smrbar syz-executor 16889 150369 98289 0 3 0x3000 suspend syz-executor 16889 153059 98289 0 3 0x4081000 biowait syz-executor 94398 238425 50616 0 3 0 uvn_get syz-executor 94398 175846 50616 0 3 0x4000000 biowait syz-executor 94398 64072 50616 0 3 0x4000000 inode syz-executor 98289 369133 64073 0 3 0x82 nanoslp syz-executor 82783 171591 0 0 3 0x14200 acct acct 2072 344855 1 0 3 0x100083 ttyopn getty 41562 380629 64073 0 3 0x82 nanoslp syz-executor 99853 498048 64073 0 3 0x82 nanoslp syz-executor 47641 228092 64073 0 3 0x82 nanoslp syz-executor 28637 408063 64073 0 3 0x82 nanoslp syz-executor 72492 404382 64073 0 3 0x82 nanoslp syz-executor 66454 124004 64073 0 3 0x82 nanoslp syz-executor 50616 368595 64073 0 3 0x82 nanoslp syz-executor 83034 73497 0 0 3 0x14200 bored sosplice 64073 361928 60015 0 3 0x82 kqread syz-executor 60015 118689 4182 0 3 0x10008a sigsusp ksh 4182 505336 15080 0 3 0x98 kqread sshd-session 15080 180146 27859 0 3 0x92 kqread sshd-session 27859 452625 1 0 3 0x88 kqread sshd 79003 84181 15322 74 3 0x1100092 bpf pflogd 15322 212569 1 0 3 0x80 sbwait pflogd 55876 4236 92295 73 3 0x1100090 kqread syslogd 92295 74967 1 0 3 0x100082 sbwait syslogd 1086 243599 1 0 3 0x100080 kqread resolvd 83440 27826 72947 77 3 0x100092 kqread dhcpleased 31234 334591 72947 77 3 0x100092 kqread dhcpleased 72947 249912 1 0 3 0x80 kqread dhcpleased 73216 148866 0 0 3 0x14200 bored smr 48792 365458 0 0 3 0x14200 pgzero zerothread 49091 464227 0 0 3 0x14200 aiodoned aiodoned 22424 29986 0 0 3 0x14200 syncer update 75575 200232 0 0 3 0x14200 cleaner cleaner 75190 193910 0 0 3 0x14200 reaper reaper 4481 32249 0 0 3 0x14200 pgdaemon pagedaemon 24010 279302 0 0 3 0x14200 bored viomb 91611 190643 0 0 3 0x40014200 acpi0 acpi0 41887 228887 0 0 3 0x40014200 idle1 97079 95016 0 0 3 0x14200 bored softnet7 86738 373584 0 0 3 0x14200 bored softnet6 20241 186418 0 0 3 0x14200 bored softnet5 10400 33140 0 0 3 0x14200 bored softnet4 70265 444443 0 0 3 0x14200 bored softnet3 77034 284826 0 0 3 0x14200 bored softnet2 21202 374723 0 0 3 0x14200 bored softnet1 94539 346977 0 0 3 0x14200 bored softnet0 23766 91817 0 0 3 0x14200 bored systqmp 12708 79390 0 0 3 0x14200 bored systq 46191 251018 0 0 3 0x14200 tmoslp softclockmp 82901 460986 0 0 3 0x40014200 tmoslp softclock 70709 108576 0 0 3 0x40014200 idle0 1 247910 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 7590 (syz-executor) thread 0xffff80002a2a8a58 (186484) exclusive rwlock amaplk r = 0 (0xfffffd806b952628) #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+0x42b sys/kern/kern_rwlock.c:319 #2 uvm_fault_check+0x5a9 sys/uvm/uvm_fault.c:862 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #5 usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 #6 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd8075fe1e70) #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+0x3e8 sys/kern/kern_rwlock.c:412 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1924 #3 uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 #7 recall_trap+0x8 Process 16889 (syz-executor) thread 0xffff800034fff9d0 (153059) exclusive rrwlock inode r = 0 (0xfffffd805d427348) #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+0x42b sys/kern/kern_rwlock.c:319 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #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:748 #9 Xsyscall+0x128 Process 94398 (syz-executor) thread 0xffff80003ac1e028 (175846) exclusive rrwlock inode r = 0 (0xfffffd805d427910) #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+0x42b sys/kern/kern_rwlock.c:319 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #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:748 #9 Xsyscall+0x128 Process 94398 (syz-executor) thread 0xffff800034ffed00 (64072) exclusive rwlock uvnsync r = 0 (0xffffffff839e2490) #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+0x42b sys/kern/kern_rwlock.c:319 #2 uvm_vnp_sync+0x31 sys/uvm/uvm_vnode.c:1488 #3 sys_sync+0xda sys/kern/vfs_syscalls.c:534 #4 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 #5 Xsyscall+0x128 shared rwlock vfslock r = 0 (0xffff800000b4a860) #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+0x3e8 sys/kern/kern_rwlock.c:412 #2 vfs_busy+0x94 sys/kern/vfs_subr.c:246 #3 sys_sync+0x5d sys/kern/vfs_syscalls.c:528 #4 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 #5 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10282 11367K 12375K 166960K 19275 0 pcb 18 16K 25K 166960K 1214 0 rtable 258 15K 15K 166960K 1171 0 pf 49 20K 67487K 166960K 496 0 ifaddr 50 10K 10K 166960K 317 0 ifgroup 68 2K 2K 166960K 531 0 sysctl 4 1K 9K 166960K 109 0 counters 78 38K 38K 166960K 574 0 ioctlops 0 0K 4K 166960K 2457 0 iov 0 0K 30K 166960K 335 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1621 102K 102K 166960K 6964 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 87 0 VM map 2 1K 1K 166960K 2 0 sem 24 28K 38K 166960K 73 0 dirhash 12 2K 3K 166960K 84 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 244K 166960K 5171 0 sigio 0 0K 0K 166960K 79 0 proc 74 115K 164K 166960K 1602 0 subproc 72 4K 4K 166960K 272 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 971 0 in_multi 104 7K 7K 166960K 474 0 ether_multi 1 0K 0K 166960K 44 0 mrt 1 0K 0K 166960K 19 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 1437 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 19 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 273 178K 194K 166960K 47990 0 UVM aobj 23 2K 2K 166960K 25 0 pinsyscall 43 86K 101K 166960K 6766 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 246 0 NDP 16 0K 2K 166960K 223 0 temp 80 8684K 8938K 166960K 206296 0 kqueue 14 22K 35K 166960K 982 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 517 0 514 4 3 1 3 0 8 0 rtentry 176 419 0 322 6 1 5 5 0 8 0 unpcb 144 3449 0 3432 18 16 2 6 0 8 1 syncache 336 19 0 19 6 5 1 1 0 8 1 tcpqe 32 3 0 3 2 2 0 1 0 8 0 tcpcb 736 1400 0 1395 26 25 1 8 0 8 0 arp 128 59 0 47 1 0 1 1 0 8 0 inpcb 328 5254 0 5244 32 25 7 10 0 8 6 nd6 144 72 0 50 1 0 1 1 0 8 0 pkpcb 40 123 0 123 5 4 1 1 0 8 1 kcovpl 48 26 0 18 1 0 1 1 0 8 0 mppekey 1024 3 0 3 3 3 0 1 0 8 0 ppxss 1192 191 0 188 4 3 1 1 0 8 0 pppxif 1504 24 0 23 7 6 1 1 0 8 0 pfstscr 40 15 0 12 1 0 1 1 0 8 0 pffrag 232 53 0 45 1 0 1 1 0 482 0 pffrnode 88 18 0 10 1 0 1 1 0 8 0 pffrent 40 109 0 99 1 0 1 1 0 8 0 pfosfp 40 1432 0 1007 5 0 5 5 0 8 0 pfosfpen 112 1432 0 715 21 0 21 21 0 8 0 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 11 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 1 1 1 0 1 0 8 0 pfstitem 24 300 0 145 1 0 1 1 0 8 0 pfstkey 128 313 0 159 6 0 6 6 0 8 0 pfstate 384 307 0 153 16 0 16 16 0 8 0 pfrule 1344 70 0 64 2 1 1 2 0 8 0 rttmr 136 5 0 5 4 3 1 1 0 8 1 art_heap8 4096 5 0 1 5 1 4 4 0 8 0 art_heap4 256 1881 0 1413 46 16 30 30 0 8 0 art_table 40 1886 0 1414 5 0 5 5 0 8 0 art_node 32 414 0 332 1 0 1 1 0 8 0 sysvmsgpl 40 53 0 49 1 0 1 1 0 8 0 semupl 112 5 0 5 3 3 0 1 0 8 0 semapl 112 64 0 42 1 0 1 1 0 8 0 shmpl 112 22 0 2 1 0 1 1 0 8 0 dirhash 1024 65 0 48 3 0 3 3 0 8 0 dino2pl 256 11190 0 9634 98 0 98 98 0 8 0 ffsino 296 11190 0 9634 120 0 120 120 0 8 0 nchpl 144 18162 0 16405 67 1 66 66 0 8 0 rtmask 32 29 0 29 8 8 0 1 0 8 0 uvmvnodes 80 6027 0 0 123 0 123 123 0 8 0 vnodes 216 6027 0 0 335 0 335 335 0 8 0 namei 1024 67352 0 67352 5 4 1 2 0 8 1 percpumem 16 302 0 248 1 0 1 1 0 8 0 kstatmem 264 346 0 310 3 0 3 3 0 8 0 acpiwqpl 32 3 0 3 1 0 1 1 1 8 1 scsiplug 72 22 0 22 8 7 1 1 0 8 1 scxspl 216 164155 0 164153 21 18 3 8 1 8 2 plimitpl 152 1119 0 1099 1 0 1 1 0 8 0 sigapl 424 5455 0 5399 9 2 7 9 0 8 0 knotepl 120 605 0 0 17 0 17 17 0 8 0 kqueuepl 224 2008 0 1996 19 14 5 5 0 8 4 pipepl 344 864 0 821 25 21 4 9 0 8 0 fdescpl 528 5397 0 5365 3 0 3 3 0 8 0 filepl 160 38314 0 38054 39 24 15 21 0 8 0 lockfpl 104 4065 0 4062 7 5 2 2 0 8 1 lockfspl 48 1590 0 1587 1 0 1 1 0 8 0 sessionpl 144 53 0 44 1 0 1 1 0 8 0 pgrppl 48 239 0 222 1 0 1 1 0 8 0 ucredpl 104 6707 0 6693 1 0 1 1 0 8 0 zombiepl 144 5668 0 5665 1 0 1 1 0 8 0 processpl 1248 5455 0 5399 6 0 6 6 0 8 0 procpl 656 13857 0 13792 8 1 7 8 0 8 0 srpgc 96 1 0 1 1 1 0 1 0 8 0 sosppl 168 25 0 25 6 5 1 1 0 8 1 sockpl 752 9516 0 9486 56 45 11 18 0 8 7 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 10 0 0 2 0 2 2 0 8 0 mcl4k 4096 123 0 0 16 0 16 16 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 114 0 0 10 3 7 10 0 8 0 mtagpl 96 197 0 0 4 0 4 4 0 8 0 mbufpl 256 4588 0 0 283 0 283 283 0 8 0 bufpl 280 68722 0 62580 440 0 440 440 0 8 0 anonpl 32 15839 0 0 128 0 128 128 0 246 0 amapchunkpl 152 167398 0 166777 71 40 31 40 0 158 6 amappl16 200 23289 0 22869 136 113 23 32 0 8 0 amappl15 192 7 0 7 3 3 0 1 0 8 0 amappl14 184 174 0 161 1 0 1 1 0 8 0 amappl13 176 15 0 15 2 1 1 1 0 8 1 amappl12 168 6349 0 6317 3 1 2 2 0 8 0 amappl11 160 60 0 46 1 0 1 1 0 8 0 amappl10 152 23 0 23 1 1 0 1 0 8 0 amappl9 144 245 0 244 2 1 1 1 0 8 0 amappl8 136 46 0 43 1 0 1 1 0 8 0 amappl7 128 173 0 160 1 0 1 1 0 8 0 amappl6 120 371 0 366 1 0 1 1 0 8 0 amappl5 112 214 0 203 1 0 1 1 0 8 0 amappl4 104 393 0 372 1 0 1 1 0 8 0 amappl3 96 34524 0 34388 4 0 4 4 0 8 0 amappl2 88 1061 0 995 2 0 2 2 0 8 0 amappl1 80 32033 0 31427 15 0 15 15 0 8 0 amappl 88 46001 0 45806 5 0 5 5 0 92 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma8192 8192 3 0 3 3 3 0 1 0 8 0 dma4096 4096 2 0 2 2 1 1 1 0 8 1 dma2048 2048 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 128 259 0 259 5 4 1 1 0 8 1 dma64 64 8 0 8 3 3 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 24 0 2 1 0 1 1 0 8 0 uaddrrnd 24 5397 0 5365 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5397 0 5365 1 0 1 1 0 8 0 vmmpekpl 168 37438 0 37377 4 1 3 4 0 8 0 vmmpepl 168 345590 0 343080 158 40 118 118 0 357 8 vmsppl 488 5396 0 5365 5 0 5 5 0 8 0 rwobjpl 80 95584 0 88155 163 7 156 156 0 8 3 pdppl 4096 10801 0 10730 145 74 71 83 0 8 0 pvpl 32 25411 0 0 204 1 203 203 0 265 0 pmappl 256 5396 0 5365 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 663 0 138 16 0 16 16 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff838aeff0) 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 __mp_lock(ffffffff83954f30) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83954f30) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a34f840,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x25 kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x25 sys/dev/kcov.c:153 uvm_pagealloc_pg(fffffd8008418108,0,0,fffffd8059a3fe08) at uvm_pagealloc_pg+0x1fe sys/uvm/uvm_page.c:700 uvm_pagealloc(0,0,fffffd8059a3fe08,2) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:913 uvmfault_promote(ffff80002a34fbf0,ffffffffffffffff,ffff80002a34fa50,ffff80002a34fa60) at uvmfault_promote+0x135 sys/uvm/uvm_fault.c:-1 uvm_fault_lower(ffff80002a34fbf0,ffff80002a34fc28,ffff80002a34fb70) at uvm_fault_lower+0x7b5 sys/uvm/uvm_fault.c:1465 uvm_fault(fffffd8075fe1d70,8af9caa8000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80002a34fd80,8af9caa8000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80002a34fd80) at usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 end trace frame: 0xffff80002a34fe00, count: 0 ddb{0}> trace x86_ipi_db(ffffffff838aeff0) 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 __mp_lock(ffffffff83954f30) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83954f30) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a34f840,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x25 kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x25 sys/dev/kcov.c:153 uvm_pagealloc_pg(fffffd8008418108,0,0,fffffd8059a3fe08) at uvm_pagealloc_pg+0x1fe sys/uvm/uvm_page.c:700 uvm_pagealloc(0,0,fffffd8059a3fe08,2) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:913 uvmfault_promote(ffff80002a34fbf0,ffffffffffffffff,ffff80002a34fa50,ffff80002a34fa60) at uvmfault_promote+0x135 sys/uvm/uvm_fault.c:-1 uvm_fault_lower(ffff80002a34fbf0,ffff80002a34fc28,ffff80002a34fb70) at uvm_fault_lower+0x7b5 sys/uvm/uvm_fault.c:1465 uvm_fault(fffffd8075fe1d70,8af9caa8000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80002a34fd80,8af9caa8000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80002a34fd80) at usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x8af5cecce90, count: -15 ddb{0}> machine ddbcpu 1 Stopped at dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 dt_ioctl_record_stop(ffff800001663000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,81,2000,ffff80003ac1f738) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003ac1f738) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a39efa0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061b01c20,81,fffffd80097fb750,ffff80003ac1f738) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806162a0e0,ffff80003ac1f738) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806162a0e0,ffff80003ac1f738) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806162a0e0,ffff80003ac1f738) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806162a0e0,ffff80003ac1f738) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80003ac1f738) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80003ac1f738,b,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003ac1f738,ffff80002a39f310,ffff80002a39f260) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a39f310) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a39f310) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x74d201733660, count: 3 ddb{1}> trace dt_ioctl_record_stop(ffff800001663000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,81,2000,ffff80003ac1f738) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003ac1f738) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a39efa0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061b01c20,81,fffffd80097fb750,ffff80003ac1f738) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806162a0e0,ffff80003ac1f738) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806162a0e0,ffff80003ac1f738) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806162a0e0,ffff80003ac1f738) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806162a0e0,ffff80003ac1f738) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80003ac1f738) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80003ac1f738,b,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003ac1f738,ffff80002a39f310,ffff80002a39f260) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a39f310) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a39f310) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x74d201733660, count: -12