panic: sleep: syz-executor[39052] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait") Stopped at db_enter+0x17: popq %rbp TID PID UID PRFLAGS PFLAGS CPU COMMAND *431975 39052 0 0 0x4000010 1K syz-executor 45273 10551 0 0x2 0x1 0 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(ffff800001894228,11,ffffffff84692f80) at sleep_setup+0x3b2 sys/kern/kern_synch.c:296 tsleep_nsec(ffff800001894228,11,ffffffff84692f80,ffffffffffffffff) at tsleep_nsec+0x29c sys/kern/kern_synch.c:153 biowait(ffff800001894228) at biowait+0xe6 sys/kern/vfs_bio.c:1110 bwrite(ffff800001894228) at bwrite+0x4e1 sys/kern/vfs_bio.c:625 ffs_update(ffff800001c94998,1) at ffs_update+0x619 sys/ufs/ffs/ffs_inode.c:111 ffs_truncate(ffff800001c94998,0,0,ffffffffffffffff) at ffs_truncate+0x12f0 sys/ufs/ffs/ffs_inode.c:-1 ufs_inactive(ffff80003af2c8c0) at ufs_inactive+0x2cb sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(ffff800001dd57e8,ffff80003bb86d20) at VOP_INACTIVE+0x1bb sys/kern/vfs_vops.c:498 vrele(ffff800001dd57e8) at vrele+0x16a sys/kern/vfs_subr.c:845 ktrsettrace(ffff800029915cf0,80001104,ffff800001deac08,ffff800000119750) at ktrsettrace+0x16c sys/kern/kern_ktrace.c:123 ktrops(ffff80003bb86d20,ffff800029915cf0,0,80001104,ffff800001deac08,ffff800000119750) at ktrops+0x338 sys/kern/kern_ktrace.c:578 doktrace(ffff800001deac08,4,1104,0,ffff80003bb86d20) at doktrace+0xa72 ktrsetchildren sys/kern/kern_ktrace.c:607 [inline] doktrace(ffff800001deac08,4,1104,0,ffff80003bb86d20) at doktrace+0xa72 sys/kern/kern_ktrace.c:522 end trace frame: 0xffff80003af2cdb0, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: sleep: syz-executor[39052] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait") ddb{1}> show kasan kasan: no report recorded this boot ddb{1}> 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(ffff800001894228,11,ffffffff84692f80) at sleep_setup+0x3b2 sys/kern/kern_synch.c:296 tsleep_nsec(ffff800001894228,11,ffffffff84692f80,ffffffffffffffff) at tsleep_nsec+0x29c sys/kern/kern_synch.c:153 biowait(ffff800001894228) at biowait+0xe6 sys/kern/vfs_bio.c:1110 bwrite(ffff800001894228) at bwrite+0x4e1 sys/kern/vfs_bio.c:625 ffs_update(ffff800001c94998,1) at ffs_update+0x619 sys/ufs/ffs/ffs_inode.c:111 ffs_truncate(ffff800001c94998,0,0,ffffffffffffffff) at ffs_truncate+0x12f0 sys/ufs/ffs/ffs_inode.c:-1 ufs_inactive(ffff80003af2c8c0) at ufs_inactive+0x2cb sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(ffff800001dd57e8,ffff80003bb86d20) at VOP_INACTIVE+0x1bb sys/kern/vfs_vops.c:498 vrele(ffff800001dd57e8) at vrele+0x16a sys/kern/vfs_subr.c:845 ktrsettrace(ffff800029915cf0,80001104,ffff800001deac08,ffff800000119750) at ktrsettrace+0x16c sys/kern/kern_ktrace.c:123 ktrops(ffff80003bb86d20,ffff800029915cf0,0,80001104,ffff800001deac08,ffff800000119750) at ktrops+0x338 sys/kern/kern_ktrace.c:578 doktrace(ffff800001deac08,4,1104,0,ffff80003bb86d20) at doktrace+0xa72 ktrsetchildren sys/kern/kern_ktrace.c:607 [inline] doktrace(ffff800001deac08,4,1104,0,ffff80003bb86d20) at doktrace+0xa72 sys/kern/kern_ktrace.c:522 sys_ktrace(ffff80003bb86d20,ffff80003af2cf30,ffff80003af2cea0) at sys_ktrace+0x1f6 sys/kern/kern_ktrace.c:563 syscall(ffff80003af2cf30) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003af2cf30) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xaa8f4ce3370, count: -17 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003af2c1b0 rbx 0xffff80003af2c220 rdx 0 rcx 0xffff800028fe3ff0 rax 0xffff80000016db80 r8 0x101010101010101 r9 0x8080808080808080 r10 0xffff80003af2bfa0 r11 0xffffffff83e54b70 x86_bus_space_io_read_1 r12 0xffffffff84d8d160 .str.9 r13 0xffff800028fe4c08 r14 0xffff800028fe4e07 r15 0x1 rip 0xffffffff82f1b577 db_enter+0x17 cs 0x8 rflags 0x246 rsp 0xffff80003af2c1b0 ss 0x10 db_enter+0x17: popq %rbp ddb{1}> show proc PROC (syz-executor) tid=431975 pid=39052 tcnt=2 stat=onproc flags process=0 proc=4000010 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003bb87780,0xffff80003bb86568 process=0xffff800045ffa698 user=0xffff80003af21000, vmspace=0xffff800000d871e8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 92738 472885 76562 0 2 0 0 syz-executor 92738 203681 76562 0 3 0 0x4000080 fsleep syz-executor 42798 113028 70705 0 2 0 0 syz-executor 42798 20400 70705 0 3 0 0x4000080 fsleep syz-executor 39052 371088 76858 0 2 0 0 syz-executor *39052 431975 76858 0 7 0 0x4000010 syz-executor 48232 103986 33476 0 2 0 0 syz-executor 48232 471778 33476 0 3 0 0x4000080 msgwait syz-executor 48232 381236 33476 0 3 0 0x4000080 msgwait syz-executor 59787 325615 36121 0 2 0 0 syz-executor 59787 129007 36121 0 3 0 0x4000080 kqsel syz-executor 59787 289971 36121 0 3 0 0x4000080 kqsel syz-executor 59787 26014 36121 0 3 0 0x4000080 fsleep syz-executor 30323 451045 74785 0 3 0 0x80 nanoslp syz-executor 30323 207106 74785 0 3 0 0x4000080 kqread syz-executor 30323 185308 74785 0 3 0 0x4000080 fsleep syz-executor 68447 211940 49986 0 3 0 0x80 nanoslp syz-executor 68447 68291 49986 0 3 0 0x4000080 kqread syz-executor 68447 281241 49986 0 3 0 0x4000080 fsleep syz-executor 49986 197741 10551 0 3 0x2 0x80 nanoslp syz-executor 76858 118800 10551 0 3 0x2 0x80 nanoslp syz-executor 33476 102779 10551 0 3 0x2 0x80 nanoslp syz-executor 74785 110866 10551 0 3 0x2 0x80 nanoslp syz-executor 62859 334678 10551 0 3 0x2 0 biowait syz-executor 76562 277706 10551 0 3 0x2 0x80 nanoslp syz-executor 36121 25465 10551 0 3 0x2 0x80 nanoslp syz-executor 70705 24389 10551 0 3 0x2 0x80 nanoslp syz-executor 10551 45273 29079 0 7 0x2 0x1 syz-executor 29079 283387 65912 0 3 0x100002 0x88 sigsusp ksh 65912 24000 43169 0 3 0x10 0x88 kqread sshd-session 43169 384815 50491 0 3 0x12 0x80 kqread sshd-session 17761 265926 1 0 3 0x100003 0x80 ttyin getty 50491 151688 1 0 3 0 0x88 kqread sshd 69268 132899 54606 74 3 0x1100012 0x80 bpf pflogd 54606 195759 1 0 3 0 0x80 sbwait pflogd 75132 273765 12807 73 3 0x1100010 0x80 kqread syslogd 12807 416008 1 0 3 0x100002 0x80 sbwait syslogd 93101 513813 1 0 3 0x100000 0x80 kqread resolvd 39018 206445 89978 77 3 0x100012 0x80 kqread dhcpleased 38369 424880 89978 77 3 0x100012 0x80 kqread dhcpleased 89978 216397 1 0 3 0 0x80 kqread dhcpleased 75192 313944 0 0 3 0x14000 0x200 bored smr 88570 363626 0 0 2 0x14000 0x200 zerothread 13791 518337 0 0 3 0x14000 0x200 aiodoned aiodoned 69401 24183 0 0 3 0x14000 0x200 syncer update 40262 2789 0 0 3 0x14000 0x200 cleaner cleaner 40399 46643 0 0 3 0x14000 0x200 reaper reaper 15714 29149 0 0 3 0x14000 0x200 pgdaemon pagedaemon 69114 488850 0 0 3 0x14000 0x200 bored viomb 38975 339343 0 0 3 0x14000 0x40000200 acpi0 acpi0 49229 414886 0 0 3 0x14000 0x40000200 idle1 57865 26923 0 0 3 0x14000 0x200 bored softnet1 48084 78922 0 0 3 0x14000 0x200 bored softnet0 54492 388651 0 0 3 0x14000 0x200 bored systqmp 22560 40699 0 0 3 0x14000 0x200 bored systq 32362 398435 0 0 3 0x14000 0x200 tmoslp softclockmp 23354 133593 0 0 3 0x14000 0x40000200 tmoslp softclock 53177 207464 0 0 3 0x14000 0x40000200 idle0 1 187137 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{1}> show all locks ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11056 12563K 12709K 166960K 12666 0 pcb 18 24K 24K 166960K 30 0 rtable 240 13K 13K 166960K 356 0 pf 34 22K 22K 166960K 55 0 ifaddr 43 12K 13K 166960K 51 0 ifgroup 55 2K 2K 166960K 69 0 sysctl 1 1K 13K 166960K 6 0 counters 70 42K 43K 166960K 78 0 ioctlops 0 0K 4K 166960K 1504 0 iov 0 0K 16K 166960K 8 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1301 84K 84K 166960K 1573 0 UFS quota 1 36K 36K 166960K 1 0 UFS mount 5 44K 44K 166960K 5 0 shm 2 2K 10K 166960K 18 0 VM map 2 1K 1K 166960K 2 0 sem 6 0K 0K 166960K 7 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1734 201K 292K 166960K 11964 0 file desc 17 61K 97K 166960K 665 0 sigio 0 0K 0K 166960K 7 0 proc 71 128K 177K 166960K 578 0 subproc 72 9K 9K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 20K 20K 166960K 1 0 ip_moptions 0 0K 0K 166960K 2 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 17 0 ISOFS mount 1 36K 36K 166960K 1 0 MSDOSFS mount 1 20K 20K 166960K 1 0 ttys 49 344K 344K 166960K 49 0 exec 0 0K 2K 166960K 386 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 231 220K 244K 166960K 7401 0 UVM aobj 20 8K 8K 166960K 21 0 pinsyscall 1066 1946K 1947K 166960K 1824 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 12 0K 2K 166960K 32 0 temp 36 9162K 9482K 166960K 11267 0 kqueue 16 52K 56K 166960K 91 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 28 0 0 1 0 1 1 0 8 0 rtpcb 120 36 0 33 1 0 1 1 0 8 0 rtentry 176 112 0 1 6 0 6 6 0 8 0 unpcb 144 174 0 157 1 0 1 1 0 8 0 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpcb 736 24 0 20 1 0 1 1 0 8 0 arp 136 19 0 0 1 0 1 1 0 8 0 inpcb 328 143 0 132 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 ppxss 1192 1 0 1 1 1 0 1 0 8 0 pffrag 232 2 0 0 1 0 1 1 0 482 0 pffrnode 88 2 0 0 1 0 1 1 0 8 0 pffrent 40 2 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 49 0 1 1 0 1 1 0 8 0 pfstkey 128 49 0 1 2 0 2 2 0 8 0 pfstate 448 49 0 1 6 0 6 6 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 32 112 0 11 1 0 1 1 0 8 0 semapl 72 5 0 1 1 0 1 1 0 8 0 shmpl 112 18 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2297 0 821 93 0 93 93 0 8 0 ffsino 296 2297 0 821 114 0 114 114 0 8 0 nchpl 144 3090 0 1389 64 0 64 64 0 8 0 vnodes 216 2524 0 0 141 0 141 141 0 8 0 namei 1024 8466 0 8465 1 0 1 1 0 8 0 percpumem 16 55 0 4 1 0 1 1 0 8 0 kstatmem 264 35 0 8 2 0 2 2 0 8 0 scxspl 216 10848 0 10846 6 3 3 3 1 8 2 plimitpl 152 32 0 15 1 0 1 1 0 8 0 sigapl 424 983 0 936 7 1 6 7 0 8 0 knotepl 120 120 0 0 4 0 4 4 0 8 0 kqueuepl 224 103 0 88 1 0 1 1 0 8 0 pipepl 344 150 0 123 3 0 3 3 0 8 0 fdescpl 528 967 0 936 3 0 3 3 0 8 0 filepl 160 2793 0 2578 10 0 10 10 0 8 0 lockfpl 104 85 0 83 1 0 1 1 0 8 0 lockfspl 48 33 0 31 1 0 1 1 0 8 0 sessionpl 144 31 0 22 1 0 1 1 0 8 0 pgrppl 48 40 0 23 1 0 1 1 0 8 0 ucredpl 104 254 0 240 1 0 1 1 0 8 0 zombiepl 144 936 0 936 1 0 1 1 0 8 1 processpl 1232 983 0 936 5 1 4 5 0 8 0 procpl 664 1612 0 1553 6 0 6 6 0 8 0 sockpl 752 353 0 322 4 0 4 4 0 8 0 mcl64k 65536 13 0 0 2 0 2 2 0 8 0 mcl16k 16384 10 0 0 2 0 2 2 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k128 9344 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 115 0 0 15 0 15 15 0 8 0 mcl2k 2048 29 0 0 4 0 4 4 0 8 0 mextrefs 64 29 0 0 1 0 1 1 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 214 0 0 14 0 14 14 0 8 0 bufpl 272 3219 0 107 208 0 208 208 0 8 0 anonpl 32 3846 0 0 31 0 31 31 0 222 0 amapchunkpl 152 22946 0 22478 21 0 21 21 0 158 1 amappl16 200 2415 0 2382 6 3 3 5 0 8 1 amappl15 192 47 0 46 1 0 1 1 0 8 0 amappl14 184 444 0 443 1 0 1 1 0 8 0 amappl13 176 126 0 114 1 0 1 1 0 8 0 amappl12 168 1214 0 1184 2 0 2 2 0 8 0 amappl11 160 32 0 32 2 2 0 1 0 8 0 amappl10 152 66 0 52 1 0 1 1 0 8 0 amappl9 144 274 0 274 1 1 0 1 0 8 0 amappl8 136 102 0 99 1 0 1 1 0 8 0 amappl7 128 149 0 136 1 0 1 1 0 8 0 amappl6 120 160 0 159 1 0 1 1 0 8 0 amappl5 112 107 0 97 1 0 1 1 0 8 0 amappl4 104 290 0 271 1 0 1 1 0 8 0 amappl3 96 4774 0 4663 4 0 4 4 0 8 0 amappl2 88 550 0 489 2 0 2 2 0 8 0 amappl1 80 12521 0 11920 15 2 13 15 0 8 0 amappl 88 6626 0 6465 4 0 4 4 0 92 0 uvmvnodes 80 109 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 20 0 1 1 0 1 1 0 8 0 uaddrrnd 24 967 0 936 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 967 0 936 1 0 1 1 0 8 0 vmmpekpl 168 8710 0 8676 2 0 2 2 0 8 0 vmmpepl 168 66886 0 64974 87 1 86 86 0 357 0 vmsppl 488 966 0 936 5 1 4 5 0 8 0 rwobjpl 80 19907 0 18853 24 2 22 24 0 8 0 pdppl 4096 1942 0 1872 102 30 72 88 0 8 2 pvpl 32 10741 0 0 88 1 87 87 0 265 0 pmappl 256 966 0 936 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 120 492 0 35 14 0 14 14 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x19: leave x86_ipi_db(ffffffff851e9ff0) 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+0x275 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff85d51b80) at __mp_lock+0x275 sys/kern/kern_lock.c:173 intr_handler(ffff8000298ffdb0,ffff800000170180) at intr_handler+0x113 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __asan_load4_noabort(ffffffff85d52378) at __asan_load4_noabort+0x14 kasan_shadow_check sys/kern/subr_kasan.c:972 [inline] __asan_load4_noabort(ffffffff85d52378) at __asan_load4_noabort+0x14 sys/kern/subr_kasan.c:1098 __mp_lock(ffffffff85d51b80) at __mp_lock+0x27a __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff85d51b80) at __mp_lock+0x27a sys/kern/kern_lock.c:173 ktrstruct(ffff8000298959f8,ffffffff848a0e00,ffff800001cf7d98,8) at ktrstruct+0x13f sys/kern/kern_ktrace.c:315 dopselect(ffff8000298959f8,32,7293dc52eeb0,0,0,ffff8000299004e0,7293dc52eeb0,32) at dopselect+0xe3e sys/kern/sys_generic.c:724 sys_pselect(ffff8000298959f8,ffff800029900710,ffff800029900680) at sys_pselect+0x2ea sys/kern/sys_generic.c:593 syscall(ffff800029900710) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800029900710) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7293dc52ee60, count: 2 ddb{0}> trace x86_ipi_db(ffffffff851e9ff0) 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+0x275 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff85d51b80) at __mp_lock+0x275 sys/kern/kern_lock.c:173 intr_handler(ffff8000298ffdb0,ffff800000170180) at intr_handler+0x113 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __asan_load4_noabort(ffffffff85d52378) at __asan_load4_noabort+0x14 kasan_shadow_check sys/kern/subr_kasan.c:972 [inline] __asan_load4_noabort(ffffffff85d52378) at __asan_load4_noabort+0x14 sys/kern/subr_kasan.c:1098 __mp_lock(ffffffff85d51b80) at __mp_lock+0x27a __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff85d51b80) at __mp_lock+0x27a sys/kern/kern_lock.c:173 ktrstruct(ffff8000298959f8,ffffffff848a0e00,ffff800001cf7d98,8) at ktrstruct+0x13f sys/kern/kern_ktrace.c:315 dopselect(ffff8000298959f8,32,7293dc52eeb0,0,0,ffff8000299004e0,7293dc52eeb0,32) at dopselect+0xe3e sys/kern/sys_generic.c:724 sys_pselect(ffff8000298959f8,ffff800029900710,ffff800029900680) at sys_pselect+0x2ea sys/kern/sys_generic.c:593 syscall(ffff800029900710) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800029900710) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7293dc52ee60, count: -13 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x17: popq %rbp 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(ffff800001894228,11,ffffffff84692f80) at sleep_setup+0x3b2 sys/kern/kern_synch.c:296 tsleep_nsec(ffff800001894228,11,ffffffff84692f80,ffffffffffffffff) at tsleep_nsec+0x29c sys/kern/kern_synch.c:153 biowait(ffff800001894228) at biowait+0xe6 sys/kern/vfs_bio.c:1110 bwrite(ffff800001894228) at bwrite+0x4e1 sys/kern/vfs_bio.c:625 ffs_update(ffff800001c94998,1) at ffs_update+0x619 sys/ufs/ffs/ffs_inode.c:111 ffs_truncate(ffff800001c94998,0,0,ffffffffffffffff) at ffs_truncate+0x12f0 sys/ufs/ffs/ffs_inode.c:-1 ufs_inactive(ffff80003af2c8c0) at ufs_inactive+0x2cb sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(ffff800001dd57e8,ffff80003bb86d20) at VOP_INACTIVE+0x1bb sys/kern/vfs_vops.c:498 vrele(ffff800001dd57e8) at vrele+0x16a sys/kern/vfs_subr.c:845 ktrsettrace(ffff800029915cf0,80001104,ffff800001deac08,ffff800000119750) at ktrsettrace+0x16c sys/kern/kern_ktrace.c:123 ktrops(ffff80003bb86d20,ffff800029915cf0,0,80001104,ffff800001deac08,ffff800000119750) at ktrops+0x338 sys/kern/kern_ktrace.c:578 doktrace(ffff800001deac08,4,1104,0,ffff80003bb86d20) at doktrace+0xa72 ktrsetchildren sys/kern/kern_ktrace.c:607 [inline] doktrace(ffff800001deac08,4,1104,0,ffff80003bb86d20) at doktrace+0xa72 sys/kern/kern_ktrace.c:522 end trace frame: 0xffff80003af2cdb0, count: 0 ddb{1}> 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(ffff800001894228,11,ffffffff84692f80) at sleep_setup+0x3b2 sys/kern/kern_synch.c:296 tsleep_nsec(ffff800001894228,11,ffffffff84692f80,ffffffffffffffff) at tsleep_nsec+0x29c sys/kern/kern_synch.c:153 biowait(ffff800001894228) at biowait+0xe6 sys/kern/vfs_bio.c:1110 bwrite(ffff800001894228) at bwrite+0x4e1 sys/kern/vfs_bio.c:625 ffs_update(ffff800001c94998,1) at ffs_update+0x619 sys/ufs/ffs/ffs_inode.c:111 ffs_truncate(ffff800001c94998,0,0,ffffffffffffffff) at ffs_truncate+0x12f0 sys/ufs/ffs/ffs_inode.c:-1 ufs_inactive(ffff80003af2c8c0) at ufs_inactive+0x2cb sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(ffff800001dd57e8,ffff80003bb86d20) at VOP_INACTIVE+0x1bb sys/kern/vfs_vops.c:498 vrele(ffff800001dd57e8) at vrele+0x16a sys/kern/vfs_subr.c:845 ktrsettrace(ffff800029915cf0,80001104,ffff800001deac08,ffff800000119750) at ktrsettrace+0x16c sys/kern/kern_ktrace.c:123 ktrops(ffff80003bb86d20,ffff800029915cf0,0,80001104,ffff800001deac08,ffff800000119750) at ktrops+0x338 sys/kern/kern_ktrace.c:578 doktrace(ffff800001deac08,4,1104,0,ffff80003bb86d20) at doktrace+0xa72 ktrsetchildren sys/kern/kern_ktrace.c:607 [inline] doktrace(ffff800001deac08,4,1104,0,ffff80003bb86d20) at doktrace+0xa72 sys/kern/kern_ktrace.c:522 sys_ktrace(ffff80003bb86d20,ffff80003af2cf30,ffff80003af2cea0) at sys_ktrace+0x1f6 sys/kern/kern_ktrace.c:563 syscall(ffff80003af2cf30) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003af2cf30) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xaa8f4ce3370, count: -17