panic: kernel diagnostic assertion "p->p_stat == SONPROC || p->p_stat == SSLEEP || p->p_stat == SSTOP" failed: file "/syzkaller/jobs/openbsd/kernel/sys/kern/kern_synch.c", line 408 Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 250025 1139 0 0x1800 0x2000 0K syz-executor.0 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279cb74) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8281ebba,ffffffff8285a479,198,ffffffff827aff5e) at __assert+0x29 sys/kern/subr_prf.c:157 tsleep_nsec(0,1,d1c6950ac4b7ac31,120) at tsleep_nsec rwsleep(ffff800021300868,ffffffff82b83410,120,ffffffff82794930,0) at rwsleep+0xab sys/kern/kern_synch.c:300 futex_wait(15f68653ec0,1,0,2) at futex_wait+0x13d sys/kern/sys_futex.c:250 sys_futex(ffff800021300868,ffff8000213a5600,ffff8000213a5650) at sys_futex+0xfc sys/kern/sys_futex.c:101 syscall(ffff8000213a56d0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000213a56d0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x15f3702d360, count: 6 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: kernel diagnostic assertion "p->p_stat == SONPROC || p->p_stat == SSLEEP || p->p_stat == SSTOP" failed: file "/syzkaller/jobs/openbsd/kernel/sys/kern/kern_synch.c", line 408 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279cb74) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8281ebba,ffffffff8285a479,198,ffffffff827aff5e) at __assert+0x29 sys/kern/subr_prf.c:157 tsleep_nsec(0,1,d1c6950ac4b7ac31,120) at tsleep_nsec rwsleep(ffff800021300868,ffffffff82b83410,120,ffffffff82794930,0) at rwsleep+0xab sys/kern/kern_synch.c:300 futex_wait(15f68653ec0,1,0,2) at futex_wait+0x13d sys/kern/sys_futex.c:250 sys_futex(ffff800021300868,ffff8000213a5600,ffff8000213a5650) at sys_futex+0xfc sys/kern/sys_futex.c:101 syscall(ffff8000213a56d0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000213a56d0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x15f3702d360, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff8000213a5310 rbx 0xffff800020d59b9f rdx 0 rcx 0xffff800021300868 rax 0xffff800020d58ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xfe6845b59fc4a59a r11 0x1683138ce40475b4 r12 0xffff800020d599a0 r13 0 r14 0 r15 0x1 rip 0xffffffff825b067c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff8000213a5300 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=12938 stat=run flags process=1800 proc=4080080 pri=82, usrpri=82, nice=20 forw=0x0, list=0xffff8000213002f8,0xffffffff82d806f8 process=0xffff80002129dd70 user=0xffff8000213a0000, vmspace=0xfffffd8079a21020 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 1139 250025 23457 0 7 0x3800 syz-executor.0 * 1139 12938 23457 0 2 0x4081880 syz-executor.0 76771 258165 27343 0 2 0 syz-executor.6 76771 507421 27343 0 3 0x4000080 fsleep syz-executor.6 14405 80358 41592 0 2 0 syz-executor.7 14405 19729 41592 0 2 0x4000000 syz-executor.7 27343 246970 56890 0 3 0x82 nanoslp syz-executor.6 21382 113439 56890 0 3 0x2 biowait syz-executor.3 23457 240935 56890 0 3 0x82 nanoslp syz-executor.0 21536 340813 56890 0 3 0x82 nanoslp syz-executor.5 41592 180625 56890 0 3 0x82 nanoslp syz-executor.7 60480 501043 56890 0 3 0x82 nanoslp syz-executor.4 70601 86977 56890 0 3 0x2 getblk syz-executor.2 76739 329538 56890 0 3 0x2 biowait syz-executor.1 56890 304332 23359 0 3 0x2000082 thrsleep syz-execprog 56890 381724 23359 0 3 0x6000082 nanoslp syz-execprog 56890 186828 23359 0 3 0x6000082 wait syz-execprog 56890 53434 23359 0 3 0x6000082 wait syz-execprog 56890 519065 23359 0 3 0x6000082 wait syz-execprog 56890 384250 23359 0 3 0x6000082 thrsleep syz-execprog 56890 153633 23359 0 3 0x6000082 wait syz-execprog 56890 138501 23359 0 3 0x6000082 kqread syz-execprog 56890 88916 23359 0 3 0x6000082 wait syz-execprog 56890 78060 23359 0 3 0x6000082 wait syz-execprog 56890 125711 23359 0 3 0x6000082 thrsleep syz-execprog 56890 477965 23359 0 3 0x6000082 wait syz-execprog 56890 368426 23359 0 3 0x6000082 wait syz-execprog 56890 294338 23359 0 3 0x6000082 thrsleep syz-execprog 56890 93194 23359 0 3 0x6000082 thrsleep syz-execprog 56890 90718 23359 0 3 0x6000082 thrsleep syz-execprog 23359 56779 4098 0 3 0x10008a sigsusp ksh 4098 398915 43968 0 3 0x9a kqread sshd 11428 290609 1 0 3 0x100083 ttyin getty 43968 291229 1 0 3 0x88 kqread sshd 10016 74281 21668 74 3 0x1100092 bpf pflogd 21668 274403 1 0 3 0x80 netio pflogd 22566 65288 18108 73 3 0x1100090 kqread syslogd 18108 86370 1 0 3 0x100082 netio syslogd 84492 480284 1 0 3 0x100080 kqread resolvd 41504 416335 23162 77 3 0x100092 kqread dhcpleased 32483 359405 23162 77 3 0x100092 kqread dhcpleased 23162 223176 1 0 3 0x80 kqread dhcpleased 91479 385316 0 0 3 0x14200 bored smr 76054 178573 0 0 2 0x14200 zerothread 67698 122935 0 0 3 0x14200 aiodoned aiodoned 97351 466728 0 0 3 0x14200 syncer update 38362 442024 0 0 3 0x14200 cleaner cleaner 91456 73074 0 0 3 0x14200 reaper reaper 92133 399408 0 0 3 0x14200 pgdaemon pagedaemon 47476 262035 0 0 3 0x14200 bored viomb 64072 360685 0 0 3 0x40014200 acpi0 acpi0 6135 398600 0 0 3 0x40014200 idle1 42963 287278 0 0 3 0x14200 bored softnet3 83600 67682 0 0 3 0x14200 bored softnet2 82880 248658 0 0 3 0x14200 bored softnet1 90501 245580 0 0 3 0x14200 bored softnet0 87678 84062 0 0 3 0x14200 bored systqmp 30743 231700 0 0 3 0x14200 bored systq 71500 340397 0 0 3 0x40014200 bored softclock 35119 497281 0 0 3 0x40014200 idle0 1 296388 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive sched_lock &sched_lock r = 0 (0xffffffff82d1eac8) #0 witness_lock+0x447 #1 sleep_finish+0x142 sys/kern/kern_synch.c:398 #2 rwsleep+0xab sys/kern/kern_synch.c:300 #3 futex_wait+0x13d sys/kern/sys_futex.c:250 #4 sys_futex+0xfc sys/kern/sys_futex.c:101 #5 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #5 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #6 Xsyscall+0x128 Process 1139 (syz-executor.0) thread 0xffff8000213002f8 (250025) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82cc9c18) #0 witness_lock+0x447 #1 trapsignal+0x714 sys/kern/kern_sig.c:824 #2 upageflttrap+0x1bd sys/arch/amd64/amd64/trap.c:214 #3 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #4 recall_trap+0x8 Process 21382 (syz-executor.3) thread 0xffff80002120e5a8 (113439) exclusive rrwlock inode r = 0 (0xfffffd806854cd58) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8079a5fb48) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 Process 70601 (syz-executor.2) thread 0xffff8000211f3060 (86977) exclusive rrwlock inode r = 0 (0xfffffd806854c5e8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ba974d8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 Process 76739 (syz-executor.1) thread 0xffff8000211ac830 (329538) exclusive rrwlock inode r = 0 (0xfffffd806854c4d8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ba97808) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10186 6474K 6474K 78643K 11267 0 pcb 13 8K 8K 78643K 13 0 rtable 234 6K 6K 78643K 386 0 pf 32 9K 10K 78643K 46 0 ifaddr 45 15K 15K 78643K 51 0 ifgroup 55 2K 2K 78643K 60 0 counters 60 35K 35K 78643K 62 0 ioctlops 0 0K 4K 78643K 1484 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1189 74K 74K 78643K 1205 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 13 45K 89K 78643K 10595 0 proc 67 91K 128K 78643K 554 0 subproc 0 0K 0K 78643K 13 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 99 7K 7K 78643K 110 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 25 122K 122K 78643K 25 0 exec 0 0K 1K 78643K 433 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 257 76K 77K 78643K 90257 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 12 0K 2K 78643K 31 0 temp 1 5904K 5968K 78643K 25887 0 kqueue 12 18K 18K 78643K 34 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 39 0 36 1 0 1 1 0 8 0 rtentry 112 122 0 12 4 0 4 4 0 8 0 unpcb 144 47 0 32 1 0 1 1 0 8 0 syncache 296 8 0 8 2 2 0 1 0 8 0 tcpqe 32 215 0 215 2 2 0 1 0 8 0 tcpcb 808 12 0 9 1 0 1 1 0 8 0 arp 120 20 0 2 1 0 1 1 0 8 0 inpcb 368 73 0 67 1 0 1 1 0 8 0 nd6 136 27 0 3 2 1 1 1 0 8 0 kcovpl 48 1 0 1 1 1 0 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 33 0 27 1 0 1 1 0 8 0 pfstkey 128 33 0 27 1 0 1 1 0 8 0 pfstate 376 33 0 27 3 1 2 3 0 8 0 pfrule 1344 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 256 501 0 48 32 3 29 29 0 8 0 art_table 32 502 0 48 5 1 4 4 0 8 0 art_node 16 121 0 21 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 11953 0 10504 91 0 91 91 0 8 0 ffsino 272 11953 0 10504 97 0 97 97 0 8 0 nchpl 144 22665 0 20973 63 0 63 63 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 49247 0 49244 4 3 1 2 0 8 0 percpumem 16 44 0 1 1 0 1 1 0 8 0 kstatmem 264 26 0 2 2 0 2 2 0 8 0 scxspl 216 70211 0 70209 10 9 1 8 1 8 0 plimitpl 152 10487 0 10467 1 0 1 1 0 8 0 sigapl 424 10943 0 10898 10 4 6 7 0 8 0 futexpl 64 10184 0 10182 2 1 1 1 0 8 0 knotepl 120 134 0 0 4 0 4 4 0 8 0 kqueuepl 216 30 0 22 1 0 1 1 0 8 0 pipepl 320 190 0 162 5 2 3 3 0 8 0 fdescpl 496 10926 0 10900 6 2 4 5 0 8 0 filepl 152 12592 0 12459 7 1 6 6 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 33 0 16 1 0 1 1 0 8 0 pgrppl 48 33 0 16 1 0 1 1 0 8 0 ucredpl 104 98 0 86 1 0 1 1 0 8 0 zombiepl 144 10900 0 10898 2 1 1 1 0 8 0 processpl 1072 10943 0 10898 5 1 4 4 0 8 0 procpl 696 21407 0 21344 9 2 7 7 0 8 0 sockpl 488 159 0 135 5 1 4 4 0 8 0 mcl8k 8192 8 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 313 0 0 40 0 40 40 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 326 0 0 21 0 21 21 0 8 0 bufpl 288 15401 0 9073 453 0 453 453 0 8 0 anonpl 24 963200 0 958011 71 38 33 56 0 186 0 amapchunkpl 152 287550 0 286947 47 19 28 29 0 158 2 amappl16 200 22564 0 22484 8 3 5 5 0 8 0 amappl15 192 24 0 24 2 2 0 1 0 8 0 amappl14 184 230 0 217 3 2 1 2 0 8 0 amappl13 176 39 0 39 2 2 0 1 0 8 0 amappl12 168 11687 0 11660 4 2 2 2 0 8 0 amappl11 160 68 0 54 1 0 1 1 0 8 0 amappl10 152 65 0 55 2 1 1 1 0 8 0 amappl9 144 572 0 572 2 2 0 1 0 8 0 amappl8 136 257 0 220 3 1 2 2 0 8 0 amappl7 128 132 0 122 3 1 2 2 0 8 0 amappl6 120 315 0 295 3 2 1 2 0 8 0 amappl5 112 239 0 224 1 0 1 1 0 8 0 amappl4 104 790 0 748 4 2 2 3 0 8 0 amappl3 96 57651 0 57582 5 2 3 3 0 8 0 amappl2 88 11337 0 11269 4 2 2 3 0 8 0 amappl1 80 46534 0 45987 33 19 14 23 0 8 0 amappl 88 89560 0 89394 8 3 5 5 0 92 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 10926 0 10900 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 10926 0 10900 1 0 1 1 0 8 0 vmmpekpl 168 69070 0 69039 2 0 2 2 0 8 0 vmmpepl 168 506432 0 504744 132 49 83 119 0 357 0 vmsppl 464 10925 0 10900 6 2 4 5 0 8 0 rwobjpl 56 137218 0 130233 110 10 100 100 0 8 1 pdppl 4096 21860 0 21800 170 102 68 82 0 8 8 pvpl 32 2531753 0 2521434 401 121 280 363 0 265 193 pmappl 248 10925 0 10900 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 919 0 110 24 0 24 24 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82b9eff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82d1e8c0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d1e8c0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 sleep_setup(ffff80002129dec8,20,ffffffff82820c6d) at sleep_setup+0x92 sys/kern/kern_synch.c:348 single_thread_set(ffff8000213002f8,2,1) at single_thread_set+0x38a single_thread_wait sys/kern/kern_sig.c:2169 [inline] single_thread_set(ffff8000213002f8,2,1) at single_thread_set+0x38a sys/kern/kern_sig.c:2150 exit1(ffff8000213002f8,0,4,1) at exit1+0xa9 sigexit(ffff8000213002f8,4) at sigexit+0xd3 sys/kern/kern_sig.c:1567 trapsignal(ffff8000213002f8,b,6,2,71a2bd2e96ac) at trapsignal+0x721 sys/kern/kern_sig.c:881 upageflttrap(ffff8000213cb070,71a2bd2e96ac) at upageflttrap+0x1bd sys/arch/amd64/amd64/trap.c:214 usertrap(ffff8000213cb070) at usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x71a2bd2e96f0, count: 3 ddb{0}> trace x86_ipi_db(ffffffff82b9eff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82d1e8c0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d1e8c0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 sleep_setup(ffff80002129dec8,20,ffffffff82820c6d) at sleep_setup+0x92 sys/kern/kern_synch.c:348 single_thread_set(ffff8000213002f8,2,1) at single_thread_set+0x38a single_thread_wait sys/kern/kern_sig.c:2169 [inline] single_thread_set(ffff8000213002f8,2,1) at single_thread_set+0x38a sys/kern/kern_sig.c:2150 exit1(ffff8000213002f8,0,4,1) at exit1+0xa9 sigexit(ffff8000213002f8,4) at sigexit+0xd3 sys/kern/kern_sig.c:1567 trapsignal(ffff8000213002f8,b,6,2,71a2bd2e96ac) at trapsignal+0x721 sys/kern/kern_sig.c:881 upageflttrap(ffff8000213cb070,71a2bd2e96ac) at upageflttrap+0x1bd sys/arch/amd64/amd64/trap.c:214 usertrap(ffff8000213cb070) at usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x71a2bd2e96f0, count: -12 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279cb74) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8281ebba,ffffffff8285a479,198,ffffffff827aff5e) at __assert+0x29 sys/kern/subr_prf.c:157 tsleep_nsec(0,1,d1c6950ac4b7ac31,120) at tsleep_nsec rwsleep(ffff800021300868,ffffffff82b83410,120,ffffffff82794930,0) at rwsleep+0xab sys/kern/kern_synch.c:300 futex_wait(15f68653ec0,1,0,2) at futex_wait+0x13d sys/kern/sys_futex.c:250 sys_futex(ffff800021300868,ffff8000213a5600,ffff8000213a5650) at sys_futex+0xfc sys/kern/sys_futex.c:101 syscall(ffff8000213a56d0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000213a56d0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x15f3702d360, count: 6 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279cb74) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8281ebba,ffffffff8285a479,198,ffffffff827aff5e) at __assert+0x29 sys/kern/subr_prf.c:157 tsleep_nsec(0,1,d1c6950ac4b7ac31,120) at tsleep_nsec rwsleep(ffff800021300868,ffffffff82b83410,120,ffffffff82794930,0) at rwsleep+0xab sys/kern/kern_synch.c:300 futex_wait(15f68653ec0,1,0,2) at futex_wait+0x13d sys/kern/sys_futex.c:250 sys_futex(ffff800021300868,ffff8000213a5600,ffff8000213a5650) at sys_futex+0xfc sys/kern/sys_futex.c:101 syscall(ffff8000213a56d0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000213a56d0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x15f3702d360, count: -9