uvm_fault(0xffffffff8353da28, 0xffff800027262004, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ffs_blkfree+0x263: movl 0x4(%r13),%r15d TID PID UID PRFLAGS PFLAGS CPU COMMAND 365642 70308 0 0 0x4000000 0 syz-executor * 36132 59573 0 0x2 0 1K syz-executor ffs_blkfree(fffffd806be08bc0,7742f,800) at ffs_blkfree+0x263 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline] ffs_blkfree(fffffd806be08bc0,7742f,800) at ffs_blkfree+0x263 sys/ufs/ffs/ffs_alloc.c:1272 ffs_truncate(fffffd806be08bc0,0,0,ffffffffffffffff) at ffs_truncate+0x139f sys/ufs/ffs/ffs_inode.c:325 ufs_inactive(ffff80002a157e48) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806fd0ee98,ffff8000371ddc18) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vput(fffffd806fd0ee98) at vput+0xe5 sys/kern/vfs_subr.c:779 ufs_mkdir(ffff80002a158070) at ufs_mkdir+0x6be VOP_MKDIR(fffffd806fa36958,ffff80002a1581d0,ffff80002a158200,ffff80002a158100) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff8000371ddc18,ffffff9c,706c24180800,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 syscall(ffff80002a158380) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a158380) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x706c24180890, count: 5 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(0xffffffff8353da28, 0xffff800027262004, 0, 1) -> d ddb{1}> trace ffs_blkfree(fffffd806be08bc0,7742f,800) at ffs_blkfree+0x263 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline] ffs_blkfree(fffffd806be08bc0,7742f,800) at ffs_blkfree+0x263 sys/ufs/ffs/ffs_alloc.c:1272 ffs_truncate(fffffd806be08bc0,0,0,ffffffffffffffff) at ffs_truncate+0x139f sys/ufs/ffs/ffs_inode.c:325 ufs_inactive(ffff80002a157e48) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806fd0ee98,ffff8000371ddc18) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vput(fffffd806fd0ee98) at vput+0xe5 sys/kern/vfs_subr.c:779 ufs_mkdir(ffff80002a158070) at ufs_mkdir+0x6be VOP_MKDIR(fffffd806fa36958,ffff80002a1581d0,ffff80002a158200,ffff80002a158100) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff8000371ddc18,ffffff9c,706c24180800,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 syscall(ffff80002a158380) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a158380) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x706c24180890, count: -10 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a157bc0 rbx 0x7742f acpi_pdirpa+0x632a0 rdx 0 rcx 0xffff8000371ddc18 rax 0xffff800029b7bff0 r8 0xffffffffffffffff r9 0xffffffffffffffff r10 0x92de6fdc160db721 r11 0xc86267c9d891be45 r12 0xfffffd807d1736c0 r13 0xffff800027262000 r14 0xffff800000a5f000 r15 0 rip 0xffffffff815587a3 ffs_blkfree+0x263 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a157b00 ss 0x10 ffs_blkfree+0x263: movl 0x4(%r13),%r15d ddb{1}> show proc PROC (syz-executor) tid=36132 pid=59573 tcnt=1 stat=onproc flags process=2 proc=0 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000371dd1f8,0xffff8000371dd490 process=0xffff800029fea448 user=0xffff80002a153000, vmspace=0xfffffd806ecddc10 estcpu=36, cpticks=1, pctcpu=0.3, user=0, sys=4, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 30550 197490 47141 0 2 0x40 syz-executor 4279 26363 94251 0 3 0x2 clonelk ifconfig 94251 269358 52561 0 3 0x10008a sigsusp sh 70308 439309 21331 0 2 0 syz-executor 70308 409025 21331 0 3 0x4000080 fsleep syz-executor 70308 430445 21331 0 2 0x4000080 syz-executor 70308 365642 21331 0 7 0x4000000 syz-executor 56677 149765 57260 0 2 0 syz-executor 56677 163381 57260 0 3 0x4000080 fsleep syz-executor 52561 403696 58374 0 3 0x82 wait syz-executor 47141 194977 58374 0 3 0x82 ppwait syz-executor 75280 492908 58374 0 3 0x82 piperd syz-executor 23562 53139 58374 0 3 0x82 piperd syz-executor 21331 210116 58374 0 3 0x82 nanoslp syz-executor 57260 85593 58374 0 3 0x82 nanoslp syz-executor *59573 36132 58374 0 7 0x2 syz-executor 83797 415647 1 0 3 0x100083 ttyin getty 77147 168387 0 0 3 0x14200 bored sosplice 95851 190218 0 0 3 0x14280 nfsidl nfsio 86917 25828 0 0 3 0x14280 nfsidl nfsio 93808 128469 0 0 3 0x14280 nfsidl nfsio 94455 219621 0 0 3 0x14280 nfsidl nfsio 96989 378253 0 0 3 0x14280 nfsidl nfsio 37018 209319 0 0 3 0x14280 nfsidl nfsio 27489 217817 0 0 3 0x14280 nfsidl nfsio 90083 366430 0 0 3 0x14280 nfsidl nfsio 35689 79316 0 0 3 0x14280 nfsidl nfsio 59990 165248 0 0 3 0x14280 nfsidl nfsio 85901 474068 0 0 3 0x14280 nfsidl nfsio 54123 116654 0 0 3 0x14280 nfsidl nfsio 8624 403146 0 0 3 0x14280 nfsidl nfsio 75463 62810 0 0 3 0x14280 nfsidl nfsio 1485 313402 0 0 3 0x14280 nfsidl nfsio 77162 326767 0 0 3 0x14280 nfsidl nfsio 56594 95084 0 0 3 0x14280 nfsidl nfsio 38464 378193 0 0 3 0x14280 nfsidl nfsio 76091 145822 0 0 3 0x14280 nfsidl nfsio 19072 331885 0 0 3 0x14280 nfsidl nfsio 58374 499860 43129 0 3 0x82 wait syz-executor 43129 509960 94298 0 3 0x10008a sigsusp ksh 94298 30768 1621 0 3 0x98 kqread sshd-session 1621 1998 10397 0 3 0x92 kqread sshd-session 10397 361398 1 0 3 0x88 kqread sshd 13334 373552 2662 74 3 0x1100092 bpf pflogd 2662 476730 1 0 3 0x80 sbwait pflogd 11095 187041 15663 73 2 0x1100010 syslogd 15663 209393 1 0 3 0x100082 sbwait syslogd 98922 32175 1 0 3 0x100080 kqread resolvd 40008 226422 18965 77 3 0x100092 kqread dhcpleased 28231 203886 18965 77 3 0x100092 kqread dhcpleased 18965 366267 1 0 3 0x80 kqread dhcpleased 75464 90898 0 0 3 0x14200 bored smr 14191 24305 0 0 2 0x14200 zerothread 69078 310007 0 0 3 0x14200 aiodoned aiodoned 76433 467525 0 0 3 0x14200 syncer update 59552 304290 0 0 3 0x14200 cleaner cleaner 33753 438622 0 0 3 0x14200 reaper reaper 43481 344889 0 0 3 0x14200 pgdaemon pagedaemon 90655 389728 0 0 3 0x14200 bored viomb 61016 256554 0 0 3 0x40014200 acpi0 acpi0 4137 104002 0 0 3 0x40014200 idle1 60673 185055 0 0 3 0x14200 bored softnet3 52375 89832 0 0 3 0x14200 bored softnet2 62798 4586 0 0 3 0x14200 bored softnet1 64046 464266 0 0 3 0x14200 bored softnet0 30665 300185 0 0 3 0x14200 bored systqmp 70697 187229 0 0 3 0x14200 bored systq 22780 474299 0 0 3 0x14200 tmoslp softclockmp 58400 146819 0 0 3 0x40014200 tmoslp softclock 69539 141816 0 0 3 0x40014200 idle0 1 46208 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 59573 (syz-executor) thread 0xffff8000371ddc18 (36132) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83628520) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 __mp_acquire_count+0x58 #2 mi_switch+0x658 sys/kern/sched_bsd.c:460 #3 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 biowait+0xc1 sys/kern/vfs_bio.c:1254 #5 bwrite+0x2e2 sys/kern/vfs_bio.c:766 #6 ffs_update+0x34c sys/ufs/ffs/ffs_inode.c:111 #7 ufs_mkdir+0x55a sys/ufs/ufs/ufs_vnops.c:1160 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806be08c58) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:169 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80660c9928) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 11095 (syslogd) thread 0xffff8000ffffd960 (187041) exclusive rrwlock inode r = 0 (0xfffffd806e4e10a0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2926 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10201 10236K 10540K 166960K 12301 0 pcb 17 14K 14K 166960K 209 0 rtable 173 5K 7K 166960K 1209 0 pf 33 17K 21K 166960K 184 0 ifaddr 36 6K 7K 166960K 169 0 ifgroup 51 2K 2K 166960K 199 0 sysctl 3 0K 0K 166960K 5 0 counters 62 36K 36K 166960K 140 0 ioctlops 0 0K 4K 166960K 1654 0 iov 0 0K 28K 166960K 135 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1510 95K 95K 166960K 2538 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 15 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 27 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 15 53K 89K 166960K 1348 0 sigio 0 0K 0K 166960K 13 0 proc 80 103K 128K 166960K 1368 0 subproc 104 6K 6K 166960K 468 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 121 0 in_multi 77 5K 7K 166960K 414 0 ether_multi 1 0K 0K 166960K 6 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 49 228K 228K 166960K 49 0 exec 0 0K 1K 166960K 785 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 200 71K 91K 166960K 12451 0 UVM aobj 24 4K 4K 166960K 37 0 pinsyscall 40 80K 100K 166960K 3128 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 61 0 NDP 21 1K 2K 166960K 120 0 temp 74 6824K 6895K 166960K 55418 0 kqueue 13 20K 32K 166960K 139 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 120 142 0 139 1 0 1 1 0 8 0 rtentry 112 420 0 342 4 1 3 4 0 8 0 unpcb 144 1006 0 987 12 10 2 6 0 8 1 syncache 336 6 0 6 4 4 0 1 0 8 0 tcpqe 32 2 0 2 1 1 0 1 0 8 0 tcpcb 808 447 0 442 21 17 4 8 0 8 3 arp 120 73 0 59 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 336 1378 0 1304 25 18 7 7 0 8 0 nd6 136 108 0 90 1 0 1 1 0 8 0 pkpcb 40 3 0 3 2 2 0 1 0 8 0 kcovpl 48 36 0 28 1 0 1 1 0 8 0 ppxss 1168 6 0 6 2 2 0 1 0 8 0 pffrag 232 3 0 2 1 0 1 1 0 482 0 pffrnode 88 3 0 2 1 0 1 1 0 8 0 pffrent 40 5 0 4 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 24 101 0 57 1 0 1 1 0 8 0 pfstkey 128 101 0 57 2 0 2 2 0 8 0 pfstate 376 101 0 57 6 0 6 6 0 8 0 pfrule 1344 43 0 28 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1707 0 1343 30 3 27 28 0 8 1 art_table 32 1708 0 1343 4 0 4 4 0 8 0 art_node 16 416 0 346 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 6 1 0 1 1 0 8 0 semapl 112 23 0 13 1 0 1 1 0 8 0 shmpl 112 34 0 13 1 0 1 1 0 8 0 dirhash 1024 30 0 13 3 0 3 3 0 8 0 dino2pl 256 3070 0 1516 98 0 98 98 0 8 0 ffsino 272 3070 0 1516 105 1 104 104 0 8 0 nchpl 144 4465 0 3885 63 40 23 63 0 8 0 uvmvnodes 80 4140 0 0 85 0 85 85 0 8 0 vnodes 216 4140 0 0 230 0 230 230 0 8 0 namei 1024 18541 0 18540 6 5 1 2 0 8 0 percpumem 16 84 0 39 1 0 1 1 0 8 0 kstatmem 264 100 0 78 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 22627 0 22627 10 9 1 8 1 8 1 plimitpl 152 264 0 247 1 0 1 1 0 8 0 sigapl 424 1619 0 1551 9 0 9 9 0 8 0 futexpl 64 12729 0 12727 3 2 1 1 0 8 0 knotepl 120 398 0 0 13 0 13 13 0 8 0 kqueuepl 216 346 0 337 5 4 1 3 0 8 0 pipepl 320 327 0 300 3 0 3 3 0 8 0 fdescpl 496 1577 0 1548 6 1 5 5 0 8 1 filepl 152 9723 0 9414 29 14 15 19 0 8 3 lockfpl 104 529 0 527 3 2 1 2 0 8 0 lockfspl 48 221 0 219 1 0 1 1 0 8 0 sessionpl 144 55 0 46 1 0 1 1 0 8 0 pgrppl 48 98 0 81 1 0 1 1 0 8 0 ucredpl 104 1601 0 1588 1 0 1 1 0 8 0 zombiepl 144 1552 0 1551 2 1 1 1 0 8 0 processpl 1160 1619 0 1551 6 0 6 6 0 8 0 procpl 648 3003 0 2931 9 1 8 8 0 8 0 srpgc 96 6 0 6 3 3 0 1 0 8 0 sosppl 168 4 0 3 2 1 1 1 0 8 0 sockpl 664 2543 0 2447 32 23 9 14 0 8 1 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 225 0 0 29 1 28 29 0 8 0 mtagpl 96 23 0 0 1 0 1 1 0 8 0 mbufpl 256 509 0 0 32 0 32 32 0 8 0 bufpl 280 7099 0 925 442 0 442 442 0 8 0 anonpl 24 259833 0 256575 85 33 52 63 0 185 16 amapchunkpl 152 39788 0 39409 44 12 32 33 0 158 14 amappl16 200 5614 0 5607 32 30 2 15 0 8 0 amappl15 192 27 0 27 1 1 0 1 0 8 0 amappl14 184 175 0 163 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 2649 0 2621 3 1 2 2 0 8 0 amappl11 160 56 0 41 1 0 1 1 0 8 0 amappl10 152 8 0 8 1 1 0 1 0 8 0 amappl9 144 136 0 136 1 1 0 1 0 8 0 amappl8 136 52 0 49 1 0 1 1 0 8 0 amappl7 128 168 0 155 1 0 1 1 0 8 0 amappl6 120 436 0 432 1 0 1 1 0 8 0 amappl5 112 246 0 233 1 0 1 1 0 8 0 amappl4 104 398 0 379 1 0 1 1 0 8 0 amappl3 96 8094 0 8009 5 1 4 4 0 8 0 amappl2 88 1082 0 1011 2 0 2 2 0 8 0 amappl1 80 13488 0 12932 15 1 14 14 0 8 0 amappl 88 11809 0 11671 5 0 5 5 0 92 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma8192 8192 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 36 0 13 1 0 1 1 0 8 0 uaddrrnd 24 1577 0 1548 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1577 0 1548 1 0 1 1 0 8 0 vmmpekpl 168 13948 0 13891 5 1 4 4 0 8 0 vmmpepl 168 103186 0 101541 106 22 84 97 0 357 4 vmsppl 440 1576 0 1548 6 2 4 5 0 8 0 rwobjpl 56 34880 0 29827 72 0 72 72 0 8 0 pdppl 4096 3161 0 3096 123 54 69 83 0 8 4 pvpl 32 31131 0 0 252 1 251 251 0 265 0 pmappl 248 1576 0 1548 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 489 0 110 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff834f4ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff83628318) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83628318) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a09a720,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff83628318) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83628318) at __mp_lock+0x199 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x38 sys/dev/kcov.c:164 rw_enter(ffff8000011e5d80,11) at rw_enter+0x407 sys/kern/kern_rwlock.c:309 sblock(ffff8000011e5d80,1) at sblock+0xb7 sys/kern/uipc_socket2.c:549 soreceive(ffff8000011e5cc0,ffff80002a09ab78,ffff80002a09ab28,0,0,ffff80002a09acec,533d292a4069a904) at soreceive+0x295 sys/kern/uipc_socket.c:947 recvit(ffff8000371c1c08,4,ffff80002a09acc0,0,ffff80002a09ad70) at recvit+0x40a sys/kern/uipc_syscalls.c:1082 end trace frame: 0xffff80002a09ad40, count: 0 ddb{0}> trace x86_ipi_db(ffffffff834f4ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff83628318) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83628318) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a09a720,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff83628318) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83628318) at __mp_lock+0x199 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x38 sys/dev/kcov.c:164 rw_enter(ffff8000011e5d80,11) at rw_enter+0x407 sys/kern/kern_rwlock.c:309 sblock(ffff8000011e5d80,1) at sblock+0xb7 sys/kern/uipc_socket2.c:549 soreceive(ffff8000011e5cc0,ffff80002a09ab78,ffff80002a09ab28,0,0,ffff80002a09acec,533d292a4069a904) at soreceive+0x295 sys/kern/uipc_socket.c:947 recvit(ffff8000371c1c08,4,ffff80002a09acc0,0,ffff80002a09ad70) at recvit+0x40a sys/kern/uipc_syscalls.c:1082 sys_recvmsg(ffff8000371c1c08,ffff80002a09ae20,ffff80002a09ad70) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:882 syscall(ffff80002a09ae20) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a09ae20) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd5ddefa3170, count: -17 ddb{0}> machine ddbcpu 1 Stopped at ffs_blkfree+0x263: movl 0x4(%r13),%r15d ffs_blkfree(fffffd806be08bc0,7742f,800) at ffs_blkfree+0x263 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline] ffs_blkfree(fffffd806be08bc0,7742f,800) at ffs_blkfree+0x263 sys/ufs/ffs/ffs_alloc.c:1272 ffs_truncate(fffffd806be08bc0,0,0,ffffffffffffffff) at ffs_truncate+0x139f sys/ufs/ffs/ffs_inode.c:325 ufs_inactive(ffff80002a157e48) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806fd0ee98,ffff8000371ddc18) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vput(fffffd806fd0ee98) at vput+0xe5 sys/kern/vfs_subr.c:779 ufs_mkdir(ffff80002a158070) at ufs_mkdir+0x6be VOP_MKDIR(fffffd806fa36958,ffff80002a1581d0,ffff80002a158200,ffff80002a158100) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff8000371ddc18,ffffff9c,706c24180800,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 syscall(ffff80002a158380) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a158380) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x706c24180890, count: 5 ddb{1}> trace ffs_blkfree(fffffd806be08bc0,7742f,800) at ffs_blkfree+0x263 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline] ffs_blkfree(fffffd806be08bc0,7742f,800) at ffs_blkfree+0x263 sys/ufs/ffs/ffs_alloc.c:1272 ffs_truncate(fffffd806be08bc0,0,0,ffffffffffffffff) at ffs_truncate+0x139f sys/ufs/ffs/ffs_inode.c:325 ufs_inactive(ffff80002a157e48) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806fd0ee98,ffff8000371ddc18) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vput(fffffd806fd0ee98) at vput+0xe5 sys/kern/vfs_subr.c:779 ufs_mkdir(ffff80002a158070) at ufs_mkdir+0x6be VOP_MKDIR(fffffd806fa36958,ffff80002a1581d0,ffff80002a158200,ffff80002a158100) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff8000371ddc18,ffffff9c,706c24180800,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 syscall(ffff80002a158380) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a158380) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x706c24180890, count: -10