panic: sleep: syz-executor[9693] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "getblk") Stopped at db_enter+0x17: popq %rbp TID PID UID PRFLAGS PFLAGS CPU COMMAND *266630 9693 0 0 0x4000010 0K syz-executor 516158 38623 0 0x2 0 1 syz-executor db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457 panic(ffffffff84d8d160) at panic+0x270 sys/kern/subr_prf.c:198 sleep_setup(ffff800001bda330,11,ffffffff84692e40) at sleep_setup+0x3b2 sys/kern/kern_synch.c:296 tsleep_nsec(ffff800001bda330,11,ffffffff84692e40,ffffffffffffffff) at tsleep_nsec+0x29c sys/kern/kern_synch.c:153 getblk(ffff800000d8e798,65560,4000,0,ffffffffffffffff) at getblk+0x23a sys/kern/vfs_bio.c:882 bread(ffff800000d8e798,65560,4000,ffff80003bbc7d20) at bread+0x47 bio_doread sys/kern/vfs_bio.c:295 [inline] bread(ffff800000d8e798,65560,4000,ffff80003bbc7d20) at bread+0x47 sys/kern/vfs_bio.c:340 ffs_update(ffff800001d0a620,1) at ffs_update+0x3e4 sys/ufs/ffs/ffs_inode.c:91 ffs_truncate(ffff800001d0a620,0,0,ffffffffffffffff) at ffs_truncate+0x12f0 sys/ufs/ffs/ffs_inode.c:-1 ufs_inactive(ffff80003bbc8100) at ufs_inactive+0x2cb sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(ffff800001d07a60,ffff800045ff62b8) at VOP_INACTIVE+0x1bb sys/kern/vfs_vops.c:498 vrele(ffff800001d07a60) at vrele+0x16a sys/kern/vfs_subr.c:845 ktrsettrace(ffff800029916b60,c0000934,ffff800001d3e960,ffff800000119820) at ktrsettrace+0x16c sys/kern/kern_ktrace.c:123 ktrops(ffff800045ff62b8,ffff800029916b60,0,c0000934,ffff800001d3e960,ffff800000119820) at ktrops+0x338 sys/kern/kern_ktrace.c:578 doktrace(ffff800001d3e960,4,40000934,0,ffff800045ff62b8) at doktrace+0xa72 ktrsetchildren sys/kern/kern_ktrace.c:607 [inline] doktrace(ffff800001d3e960,4,40000934,0,ffff800045ff62b8) at doktrace+0xa72 sys/kern/kern_ktrace.c:522 end trace frame: 0xffff80003bbc85f0, count: 0 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 *cpu0: sleep: syz-executor[9693] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "getblk") ddb{0}> show kasan kasan: no report recorded this boot ddb{0}> trace db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457 panic(ffffffff84d8d160) at panic+0x270 sys/kern/subr_prf.c:198 sleep_setup(ffff800001bda330,11,ffffffff84692e40) at sleep_setup+0x3b2 sys/kern/kern_synch.c:296 tsleep_nsec(ffff800001bda330,11,ffffffff84692e40,ffffffffffffffff) at tsleep_nsec+0x29c sys/kern/kern_synch.c:153 getblk(ffff800000d8e798,65560,4000,0,ffffffffffffffff) at getblk+0x23a sys/kern/vfs_bio.c:882 bread(ffff800000d8e798,65560,4000,ffff80003bbc7d20) at bread+0x47 bio_doread sys/kern/vfs_bio.c:295 [inline] bread(ffff800000d8e798,65560,4000,ffff80003bbc7d20) at bread+0x47 sys/kern/vfs_bio.c:340 ffs_update(ffff800001d0a620,1) at ffs_update+0x3e4 sys/ufs/ffs/ffs_inode.c:91 ffs_truncate(ffff800001d0a620,0,0,ffffffffffffffff) at ffs_truncate+0x12f0 sys/ufs/ffs/ffs_inode.c:-1 ufs_inactive(ffff80003bbc8100) at ufs_inactive+0x2cb sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(ffff800001d07a60,ffff800045ff62b8) at VOP_INACTIVE+0x1bb sys/kern/vfs_vops.c:498 vrele(ffff800001d07a60) at vrele+0x16a sys/kern/vfs_subr.c:845 ktrsettrace(ffff800029916b60,c0000934,ffff800001d3e960,ffff800000119820) at ktrsettrace+0x16c sys/kern/kern_ktrace.c:123 ktrops(ffff800045ff62b8,ffff800029916b60,0,c0000934,ffff800001d3e960,ffff800000119820) at ktrops+0x338 sys/kern/kern_ktrace.c:578 doktrace(ffff800001d3e960,4,40000934,0,ffff800045ff62b8) at doktrace+0xa72 ktrsetchildren sys/kern/kern_ktrace.c:607 [inline] doktrace(ffff800001d3e960,4,40000934,0,ffff800045ff62b8) at doktrace+0xa72 sys/kern/kern_ktrace.c:522 sys_ktrace(ffff800045ff62b8,ffff80003bbc8770,ffff80003bbc86e0) at sys_ktrace+0x1f6 sys/kern/kern_ktrace.c:563 syscall(ffff80003bbc8770) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003bbc8770) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xece3a193440, count: -17 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003bbc77d0 rbx 0xffff80003bbc7840 rdx 0 rcx 0xffffffff851e9ff0 cpu_info_full_primary+0x1ff0 rax 0xffff80000016e880 r8 0x101010101010101 r9 0x8080808080808080 r10 0 r11 0xffffffff83e54b70 x86_bus_space_io_read_1 r12 0xffffffff84d8d160 .str.9 r13 0xffffffff851eac08 cpu_info_full_primary+0x2c08 r14 0xffffffff851eae07 cpu_info_full_primary+0x2e07 r15 0x1 rip 0xffffffff82f1b577 db_enter+0x17 cs 0x8 rflags 0x246 rsp 0xffff80003bbc77d0 ss 0x10 db_enter+0x17: popq %rbp ddb{0}> show proc PROC (syz-executor) tid=266630 pid=9693 tcnt=2 stat=onproc flags process=0 proc=4000010 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800045ff74e0,0xffffffff85deb120 process=0xffff800045ff26a0 user=0xffff80003bbbd000, vmspace=0xffff800001c7c9a8 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 9693 312818 9605 0 2 0 0 syz-executor * 9693 266630 9605 0 7 0 0x4000010 syz-executor 69456 518937 41551 0 2 0 0 syz-executor 69456 323046 41551 0 3 0 0x4000080 fsleep syz-executor 69456 171624 41551 0 2 0 0x4000000 syz-executor 81938 496595 36919 0 2 0 0 syz-executor 81938 490179 36919 0 3 0 0x4000080 fsleep syz-executor 9476 30882 88828 0 3 0 0x80 nanoslp syz-executor 9476 444491 88828 0 3 0 0x4000080 pipewr syz-executor 9476 413688 88828 0 3 0 0x4000080 pipewr syz-executor 852 104823 93141 0 2 0 0 syz-executor 852 56179 93141 0 3 0 0x4000080 fsleep syz-executor 852 73682 93141 0 3 0 0x4000080 fsleep syz-executor 61419 413536 44414 0 2 0 0 syz-executor 61419 128416 44414 0 3 0 0x4000080 fsleep syz-executor 61419 383774 44414 0 3 0 0x4000080 fsleep syz-executor 69266 509247 55985 0 3 0x2 0x80 nanoslp syz-executor 44414 49879 55985 0 3 0x2 0x80 nanoslp syz-executor 9605 55837 55985 0 3 0x2 0x80 nanoslp syz-executor 41551 393221 55985 0 3 0x2 0x80 nanoslp syz-executor 93141 418251 55985 0 3 0x2 0x80 nanoslp syz-executor 88828 505379 55985 0 3 0x2 0x80 nanoslp syz-executor 38623 516158 55985 0 7 0x2 0 syz-executor 36919 485248 55985 0 3 0x2 0x80 nanoslp syz-executor 55985 521056 57620 0 3 0x2 0x80 kqread syz-executor 57620 162341 6158 0 3 0x100002 0x88 sigsusp ksh 6158 288324 34345 0 3 0x10 0x88 kqread sshd-session 34345 122645 90060 0 3 0x12 0x80 kqread sshd-session 55301 216799 1 0 3 0x100003 0x80 ttyin getty 90060 180535 1 0 3 0 0x88 kqread sshd 44985 153572 51974 74 3 0x1100012 0x80 bpf pflogd 51974 521789 1 0 3 0 0x80 sbwait pflogd 96381 389540 47023 73 3 0x1100010 0x80 kqread syslogd 47023 246521 1 0 3 0x100002 0x80 sbwait syslogd 93954 299919 1 0 3 0x100000 0x80 kqread resolvd 30120 130929 54483 77 3 0x100012 0x80 kqread dhcpleased 3269 232509 54483 77 3 0x100012 0x80 kqread dhcpleased 54483 443452 1 0 3 0 0x80 kqread dhcpleased 23873 147533 0 0 3 0x14000 0x200 bored smr 33785 409337 0 0 2 0x14000 0x200 zerothread 4115 58772 0 0 3 0x14000 0x200 aiodoned aiodoned 81525 346172 0 0 3 0x14000 0x200 syncer update 11808 341874 0 0 3 0x14000 0x200 cleaner cleaner 24023 148411 0 0 3 0x14000 0x200 reaper reaper 60552 495768 0 0 3 0x14000 0x200 pgdaemon pagedaemon 31125 262387 0 0 3 0x14000 0x200 bored viomb 74338 384723 0 0 3 0x14000 0x40000200 acpi0 acpi0 28510 253190 0 0 3 0x14000 0x40000200 idle1 37862 187899 0 0 3 0x14000 0x200 bored softnet1 96561 338594 0 0 3 0x14000 0x200 bored softnet0 64061 320756 0 0 3 0x14000 0x200 bored systqmp 88103 500450 0 0 3 0x14000 0x200 bored systq 1710 394375 0 0 3 0x14000 0x200 tmoslp softclockmp 28036 260361 0 0 3 0x14000 0x40000200 tmoslp softclock 22664 5602 0 0 3 0x14000 0x40000200 idle0 1 135466 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{0}> show all locks Process 9693 (syz-executor) thread 0xffff800045ff62b8 (266630) exclusive rrwlock inode r = 0 (0xffff800001d0a6c0) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x53e sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xf0 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0x17e sys/kern/vfs_vops.c:527 #4 vn_lock+0xca sys/kern/vfs_vnops.c:576 #5 vrele+0x113 sys/kern/vfs_subr.c:836 #6 ktrsettrace+0x16c sys/kern/kern_ktrace.c:123 #7 ktrops+0x338 sys/kern/kern_ktrace.c:578 #8 doktrace+0xa72 ktrsetchildren sys/kern/kern_ktrace.c:607 [inline] #8 doktrace+0xa72 sys/kern/kern_ktrace.c:522 #9 sys_ktrace+0x1f6 sys/kern/kern_ktrace.c:563 #10 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #11 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff85d52380) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 syscall+0x1048 mi_syscall sys/sys/syscall_mi.h:175 [inline] #1 syscall+0x1048 sys/arch/amd64/amd64/trap.c:783 #2 Xsyscall+0x128 Process 38623 (syz-executor) thread 0xffff800029913c98 (516158) exclusive rrwlock inode r = 0 (0xffff800001d0a910) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x53e sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xf0 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0x17e sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0xda sys/ufs/ufs/ufs_ihash.c:146 #5 ffs_vget+0x2e9 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x576 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x25d sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x1a8 sys/kern/vfs_vops.c:394 #9 domkdirat+0x1f9 sys/kern/vfs_syscalls.c:3063 #10 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xffff800001b85330) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x53e sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xf0 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0x17e sys/kern/vfs_vops.c:527 #4 vn_lock+0xca sys/kern/vfs_vnops.c:576 #5 vfs_lookup+0x1f7 sys/kern/vfs_lookup.c:431 #6 namei+0xe19 sys/kern/vfs_lookup.c:250 #7 domkdirat+0xe1 sys/kern/vfs_syscalls.c:3048 #8 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11053 12243K 12317K 166960K 12157 0 pcb 18 24K 24K 166960K 20 0 rtable 237 12K 13K 166960K 351 0 pf 34 22K 22K 166960K 46 0 ifaddr 43 12K 12K 166960K 45 0 ifgroup 55 2K 2K 166960K 55 0 sysctl 1 1K 13K 166960K 5 0 counters 70 42K 42K 166960K 70 0 ioctlops 0 0K 4K 166960K 1486 0 iov 0 0K 8K 166960K 3 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1292 83K 83K 166960K 1377 0 UFS quota 1 36K 36K 166960K 1 0 UFS mount 5 44K 44K 166960K 5 0 shm 2 2K 6K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 4 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1734 201K 292K 166960K 11964 0 file desc 17 61K 89K 166960K 226 0 proc 70 128K 177K 166960K 569 0 subproc 72 9K 9K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 20K 20K 166960K 1 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 36K 36K 166960K 1 0 MSDOSFS mount 1 20K 20K 166960K 1 0 ttys 37 263K 263K 166960K 37 0 exec 0 0K 2K 166960K 387 0 fusefs mount 1 36K 36K 166960K 1 0 tdb 3 1K 1K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 240 257K 274K 166960K 3698 0 UVM aobj 5 4K 4K 166960K 5 0 pinsyscall 1066 1753K 1755K 166960K 1385 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 12 0K 2K 166960K 28 0 temp 34 9162K 9172K 166960K 4083 0 kqueue 13 40K 48K 166960K 31 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 34 0 31 1 0 1 1 0 8 0 rtentry 176 111 0 1 5 0 5 5 0 8 0 unpcb 144 54 0 37 1 0 1 1 0 8 0 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 736 9 0 5 1 0 1 1 0 8 0 arp 136 18 0 0 1 0 1 1 0 8 0 inpcb 328 76 0 68 1 0 1 1 0 8 0 nd6 152 24 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 pfstitem 24 21 0 0 1 0 1 1 0 8 0 pfstkey 128 21 0 0 1 0 1 1 0 8 0 pfstate 448 21 0 0 3 0 3 3 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 256 452 0 0 29 0 29 29 0 8 0 art_table 40 453 0 0 5 0 5 5 0 8 0 art_node 32 111 0 11 1 0 1 1 0 8 0 semapl 72 2 0 1 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1693 0 221 93 0 93 93 0 8 0 ffsino 296 1693 0 221 114 0 114 114 0 8 0 nchpl 144 1992 0 294 64 0 64 64 0 8 0 vnodes 216 1788 0 0 100 0 100 100 0 8 0 namei 1024 5924 0 5923 1 0 1 1 0 8 0 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 7595 0 7595 9 1 8 8 1 8 8 plimitpl 152 30 0 13 1 0 1 1 0 8 0 sigapl 424 544 0 497 7 0 7 7 0 8 1 knotepl 120 62 0 0 2 0 2 2 0 8 0 kqueuepl 224 27 0 18 1 0 1 1 0 8 0 pipepl 344 130 0 102 3 0 3 3 0 8 0 fdescpl 528 528 0 497 3 0 3 3 0 8 0 filepl 160 1736 0 1520 10 0 10 10 0 8 0 lockfpl 104 16 0 14 1 0 1 1 0 8 0 lockfspl 48 9 0 7 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 104 110 0 97 1 0 1 1 0 8 0 zombiepl 144 498 0 497 1 0 1 1 0 8 0 processpl 1232 544 0 497 5 0 5 5 0 8 0 procpl 664 655 0 598 5 0 5 5 0 8 0 sockpl 752 164 0 136 4 0 4 4 0 8 1 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k128 9344 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 120 0 0 15 0 15 15 0 8 0 mcl2k 2048 15 0 0 2 0 2 2 0 8 0 mextrefs 64 17 0 0 1 0 1 1 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 237 0 0 15 0 15 15 0 8 0 bufpl 272 2444 0 105 156 0 156 156 0 8 0 anonpl 32 3838 0 0 31 0 31 31 0 222 0 amapchunkpl 152 10650 0 10160 21 0 21 21 0 158 1 amappl16 200 1927 0 1902 5 1 4 5 0 8 2 amappl15 192 21 0 21 2 1 1 1 0 8 1 amappl14 184 477 0 476 1 0 1 1 0 8 0 amappl13 176 127 0 115 1 0 1 1 0 8 0 amappl12 168 780 0 749 2 0 2 2 0 8 0 amappl11 160 4 0 4 1 0 1 1 0 8 1 amappl10 152 72 0 58 1 0 1 1 0 8 0 amappl9 144 273 0 272 2 1 1 1 0 8 0 amappl8 136 100 0 97 1 0 1 1 0 8 0 amappl7 128 172 0 159 1 0 1 1 0 8 0 amappl6 120 172 0 171 1 0 1 1 0 8 0 amappl5 112 114 0 104 1 0 1 1 0 8 0 amappl4 104 313 0 295 1 0 1 1 0 8 0 amappl3 96 2071 0 1954 4 0 4 4 0 8 1 amappl2 88 549 0 493 2 0 2 2 0 8 0 amappl1 80 10963 0 10355 16 1 15 15 0 8 2 amappl 88 2973 0 2805 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 528 0 497 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 528 0 497 1 0 1 1 0 8 0 vmmpekpl 168 6171 0 6132 2 0 2 2 0 8 0 vmmpepl 168 43099 0 41189 87 0 87 87 0 357 1 vmsppl 488 527 0 497 5 0 5 5 0 8 1 rwobjpl 80 15526 0 14495 24 0 24 24 0 8 1 pdppl 4096 1064 0 994 98 24 74 84 0 8 4 pvpl 32 10001 0 0 82 1 81 81 0 265 0 pmappl 256 527 0 497 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 120 430 0 28 13 0 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457 panic(ffffffff84d8d160) at panic+0x270 sys/kern/subr_prf.c:198 sleep_setup(ffff800001bda330,11,ffffffff84692e40) at sleep_setup+0x3b2 sys/kern/kern_synch.c:296 tsleep_nsec(ffff800001bda330,11,ffffffff84692e40,ffffffffffffffff) at tsleep_nsec+0x29c sys/kern/kern_synch.c:153 getblk(ffff800000d8e798,65560,4000,0,ffffffffffffffff) at getblk+0x23a sys/kern/vfs_bio.c:882 bread(ffff800000d8e798,65560,4000,ffff80003bbc7d20) at bread+0x47 bio_doread sys/kern/vfs_bio.c:295 [inline] bread(ffff800000d8e798,65560,4000,ffff80003bbc7d20) at bread+0x47 sys/kern/vfs_bio.c:340 ffs_update(ffff800001d0a620,1) at ffs_update+0x3e4 sys/ufs/ffs/ffs_inode.c:91 ffs_truncate(ffff800001d0a620,0,0,ffffffffffffffff) at ffs_truncate+0x12f0 sys/ufs/ffs/ffs_inode.c:-1 ufs_inactive(ffff80003bbc8100) at ufs_inactive+0x2cb sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(ffff800001d07a60,ffff800045ff62b8) at VOP_INACTIVE+0x1bb sys/kern/vfs_vops.c:498 vrele(ffff800001d07a60) at vrele+0x16a sys/kern/vfs_subr.c:845 ktrsettrace(ffff800029916b60,c0000934,ffff800001d3e960,ffff800000119820) at ktrsettrace+0x16c sys/kern/kern_ktrace.c:123 ktrops(ffff800045ff62b8,ffff800029916b60,0,c0000934,ffff800001d3e960,ffff800000119820) at ktrops+0x338 sys/kern/kern_ktrace.c:578 doktrace(ffff800001d3e960,4,40000934,0,ffff800045ff62b8) at doktrace+0xa72 ktrsetchildren sys/kern/kern_ktrace.c:607 [inline] doktrace(ffff800001d3e960,4,40000934,0,ffff800045ff62b8) at doktrace+0xa72 sys/kern/kern_ktrace.c:522 sys_ktrace(ffff800045ff62b8,ffff80003bbc8770,ffff80003bbc86e0) at sys_ktrace+0x1f6 sys/kern/kern_ktrace.c:563 syscall(ffff80003bbc8770) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003bbc8770) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xece3a193440, count: -17 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x19: leave x86_ipi_db(ffff800028fe3ff0) at x86_ipi_db+0x19 sys/arch/amd64/amd64/db_interface.c:412 x86_ipi_handler() at x86_ipi_handler+0x112 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff85d51b80) at __mp_lock+0x272 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff85d51b80) at __mp_lock+0x272 sys/kern/kern_lock.c:173 __mp_acquire_count(ffffffff85d51b80,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x423 sys/kern/kern_synch.c:373 biowait(ffff800001bda330) at biowait+0xe6 sys/kern/vfs_bio.c:1110 bwrite(ffff800001bda330) at bwrite+0x4e1 sys/kern/vfs_bio.c:625 ffs_update(ffff800001b85290,1) at ffs_update+0x619 sys/ufs/ffs/ffs_inode.c:111 ufs_mkdir(ffff8000299f08a0) at ufs_mkdir+0x851 sys/ufs/ufs/ufs_vnops.c:1143 VOP_MKDIR(ffff800001771e60,ffff8000299f0ab0,ffff8000299f0ae0,ffff8000299f09a0) at VOP_MKDIR+0x1a8 sys/kern/vfs_vops.c:394 domkdirat(ffff800029913c98,ffffff9c,7368763aa800,1ff) at domkdirat+0x1f9 sys/kern/vfs_syscalls.c:3063 syscall(ffff8000299f0d80) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000299f0d80) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7368763aa8a0, count: 1 ddb{1}> trace x86_ipi_db(ffff800028fe3ff0) at x86_ipi_db+0x19 sys/arch/amd64/amd64/db_interface.c:412 x86_ipi_handler() at x86_ipi_handler+0x112 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff85d51b80) at __mp_lock+0x272 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff85d51b80) at __mp_lock+0x272 sys/kern/kern_lock.c:173 __mp_acquire_count(ffffffff85d51b80,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x423 sys/kern/kern_synch.c:373 biowait(ffff800001bda330) at biowait+0xe6 sys/kern/vfs_bio.c:1110 bwrite(ffff800001bda330) at bwrite+0x4e1 sys/kern/vfs_bio.c:625 ffs_update(ffff800001b85290,1) at ffs_update+0x619 sys/ufs/ffs/ffs_inode.c:111 ufs_mkdir(ffff8000299f08a0) at ufs_mkdir+0x851 sys/ufs/ufs/ufs_vnops.c:1143 VOP_MKDIR(ffff800001771e60,ffff8000299f0ab0,ffff8000299f0ae0,ffff8000299f09a0) at VOP_MKDIR+0x1a8 sys/kern/vfs_vops.c:394 domkdirat(ffff800029913c98,ffffff9c,7368763aa800,1ff) at domkdirat+0x1f9 sys/kern/vfs_syscalls.c:3063 syscall(ffff8000299f0d80) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000299f0d80) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7368763aa8a0, count: -14