load: 4.34 cmd: load: 4.34 cmd: witness: lock order reversal: 1st 0xfffffd8066e15c58 inode (&ip->i_lock) 2nd 0xfffffd807a6af620 fdlock (&newfdp->fd_fd.fd_lock) lock order "&newfdp->fd_fd.fd_lock"(rwlock) -> "&ip->i_lock"(rrwlock) first seen at: #0 witness_checkorder+0x6a7 sys/kern/subr_witness.c:879 #1 rw_enter+0xd1 sys/kern/kern_rwlock.c:247 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:602 #4 vn_closefile+0x119 vn_lock sys/kern/vfs_vnops.c:561 [inline] #4 vn_closefile+0x119 vn_close sys/kern/vfs_vnops.c:288 [inline] #4 vn_closefile+0x119 sys/kern/vfs_vnops.c:587 #5 fdrop+0xc9 sys/kern/kern_descrip.c:1273 #6 closef+0x11d sys/kern/kern_descrip.c:1257 #7 finishdup+0x2b6 sys/kern/kern_descrip.c:686 #8 dodup3+0x5c5 sys/kern/kern_descrip.c:377 #9 syscall+0x552 mi_syscall sys/sys/syscall_mi.h:92 [inline] #9 syscall+0x552 sys/arch/amd64/amd64/trap.c:555 #10 Xsyscall+0x128 lock order "&ip->i_lock"(rrwlock) -> "&newfdp->fd_fd.fd_lock"(rwlock) first seen at: #0 witness_checkorder+0x6a7 sys/kern/subr_witness.c:879 #1 rw_enter_write+0x5b sys/kern/kern_rwlock.c:125 #2 diskmapioctl+0x237 sys/dev/diskmap.c:106 #3 VOP_IOCTL+0x88 sys/kern/vfs_vops.c:290 #4 vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 #5 sys_ioctl+0x5b8 #6 syscall+0x552 mi_syscall sys/sys/syscall_mi.h:92 [inline] #6 syscall+0x552 sys/arch/amd64/amd64/trap.c:555 #7 Xsyscall+0x128 Stopped at db_enter+0x18: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 witness_checkorder(fffffd807a6af620,9,0) at witness_checkorder+0xffc witness_debugger sys/kern/subr_witness.c:2506 [inline] witness_checkorder(fffffd807a6af620,9,0) at witness_checkorder+0xffc sys/kern/subr_witness.c:1086 rw_enter_write(fffffd807a6af610) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:125 diskmapioctl(5a00,c0106477,ffff800020b68fc0,1,ffff800020ab0ee8) at diskmapioctl+0x237 sys/dev/diskmap.c:106 VOP_IOCTL(fffffd806fa7f328,c0106477,ffff800020b68fc0,1,fffffd807f7c6ae0,ffff800020ab0ee8) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:290 vn_ioctl(fffffd8067b596a0,c0106477,ffff800020b68fc0,ffff800020ab0ee8) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 sys_ioctl(ffff800020ab0ee8,ffff800020b690d8,ffff800020b69140) at sys_ioctl+0x5b8 syscall(ffff800020b691b0) at syscall+0x552 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800020b691b0) at syscall+0x552 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff1b,0,3,567acd43010) at Xsyscall+0x128 end of kernel end trace frame: 0x56a986496b0, count: -9 ddb{1}> show registers rdi 0x3 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800020b68b80 rbx 0x3 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff80002197e000 rax 0xffff800000a87ec0 r8 0xffffffff816e6485 witness_checkorder+0xfd5 r9 0x5 r10 0x3 r11 0x828bd6fa6f46900d r12 0xfffffd80029bbc00 r13 0 r14 0xffffffff825ff270 w_lodata+0x47750 r15 0xffffffff8260bf50 w_lodata+0x54430 rip 0xffffffff81fc9258 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020b68b70 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=276436 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff800020ac0778,0xffff800020ab0028 process=0xffff800020adc380 user=0xffff800020b64000, vmspace=0xfffffd807f00c000 estcpu=32, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 87032 177908 72881 0 2 0 syz-executor.1 *87032 276436 72881 0 7 0x4000000 syz-executor.1 87032 355773 72881 0 3 0x4000080 fsleep syz-executor.1 97173 204549 56866 0 7 0 syz-executor.0 97173 224267 56866 0 3 0x4000080 fsleep syz-executor.0 97173 392299 56866 0 2 0x4000080 syz-executor.0 72881 197139 37584 0 3 0x82 nanosleep syz-executor.1 56866 131011 37584 0 3 0x82 nanosleep syz-executor.0 12478 457228 0 0 3 0x14200 acct acct 16856 446884 1 0 3 0x100083 ttyin getty 77137 393890 0 0 3 0x14200 bored sosplice 37584 175767 58264 0 3 0x82 thrsleep syz-fuzzer 37584 460976 58264 0 3 0x4000082 thrsleep syz-fuzzer 37584 366090 58264 0 3 0x4000082 thrsleep syz-fuzzer 37584 57624 58264 0 3 0x4000082 thrsleep syz-fuzzer 37584 243244 58264 0 3 0x4000082 thrsleep syz-fuzzer 37584 39318 58264 0 3 0x4000082 kqread syz-fuzzer 37584 269054 58264 0 3 0x4000082 thrsleep syz-fuzzer 37584 426654 58264 0 3 0x4000082 thrsleep syz-fuzzer 37584 40733 58264 0 3 0x4000082 thrsleep syz-fuzzer 37584 286332 58264 0 3 0x4000082 thrsleep syz-fuzzer 58264 448211 95766 0 3 0x10008a pause ksh 95766 197524 13422 0 3 0x92 select sshd 13422 141848 1 0 3 0x80 select sshd 8379 324761 95960 74 3 0x100092 bpf pflogd 95960 224173 1 0 3 0x80 netio pflogd 65974 132819 74993 73 3 0x100090 kqread syslogd 74993 480600 1 0 3 0x100082 netio syslogd 15678 396666 1 77 3 0x100090 poll dhclient 99424 305854 1 0 3 0x80 poll dhclient 38337 274620 0 0 2 0x14200 zerothread 9001 57610 0 0 3 0x14200 aiodoned aiodoned 44121 320338 0 0 3 0x14200 syncer update 11050 256936 0 0 3 0x14200 cleaner cleaner 32538 510182 0 0 3 0x14200 reaper reaper 35694 248875 0 0 3 0x14200 pgdaemon pagedaemon 22038 344004 0 0 3 0x14200 bored crynlk 80719 11799 0 0 3 0x14200 bored crypto 46111 261902 0 0 3 0x40014200 acpi0 acpi0 27402 317821 0 0 3 0x40014200 idle1 39727 406585 0 0 3 0x14200 bored softnet 56152 177963 0 0 3 0x14200 bored systqmp 37508 397812 0 0 3 0x14200 bored systq 95559 79942 0 0 3 0x40014200 bored softclock 73918 239555 0 0 3 0x40014200 idle0 85189 504715 0 0 3 0x14200 bored smr 1 503207 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 87032 (syz-executor.1) thread 0xffff800020ab0ee8 (276436) exclusive rrwlock inode r = 0 (0xfffffd8066e15c58) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x46d sys/kern/kern_rwlock.c:306 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:602 #4 vn_lock+0x6e sys/kern/vfs_vnops.c:561 #5 spec_open+0x431 sys/kern/spec_vnops.c:159 #6 VOP_OPEN+0x6a sys/kern/vfs_vops.c:153 #7 vn_open+0x495 sys/kern/vfs_vnops.c:174 #8 diskmapioctl+0x18e sys/dev/diskmap.c:91 #9 VOP_IOCTL+0x88 sys/kern/vfs_vops.c:290 #10 vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 #11 sys_ioctl+0x5b8 #12 syscall+0x552 mi_syscall sys/sys/syscall_mi.h:92 [inline] #12 syscall+0x552 sys/arch/amd64/amd64/trap.c:555 #13 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8265b828) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 #2 mi_switch+0x38f sys/kern/sched_bsd.c:441 #3 sleep_finish+0x113 sys/kern/kern_synch.c:373 #4 rw_enter+0x366 sys/kern/kern_rwlock.c:282 #5 rrw_enter+0x4f sys/kern/kern_rwlock.c:435 #6 VOP_LOCK+0x4b sys/kern/vfs_vops.c:602 #7 vn_lock+0x6e sys/kern/vfs_vnops.c:561 #8 spec_open+0x431 sys/kern/spec_vnops.c:159 #9 VOP_OPEN+0x6a sys/kern/vfs_vops.c:153 #10 vn_open+0x495 sys/kern/vfs_vnops.c:174 #11 diskmapioctl+0x18e sys/dev/diskmap.c:91 #12 VOP_IOCTL+0x88 sys/kern/vfs_vops.c:290 #13 vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 #14 sys_ioctl+0x5b8 #15 syscall+0x552 mi_syscall sys/sys/syscall_mi.h:92 [inline] #15 syscall+0x552 sys/arch/amd64/amd64/trap.c:555 #16 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9531 6426K 6929K 78643K 12308 0 0 pcb 13 8K 8K 78643K 90 0 0 rtable 111 4K 4K 78643K 435 0 0 ifaddr 63 14K 15K 78643K 147 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1496 0 0 iov 0 0K 20K 78643K 93 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1212 76K 77K 78643K 1869 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 3 5K 5K 78643K 8 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 1K 78643K 82 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 6 17K 25K 78643K 725 0 0 sigio 0 0K 0K 78643K 6 0 0 proc 54 51K 71K 78643K 580 0 0 subproc 32 2K 2K 78643K 68 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 65 0 0 in_multi 33 2K 2K 78643K 78 0 0 ether_multi 1 0K 0K 78643K 3 0 0 mrt 0 0K 0K 78643K 3 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 66 291K 291K 78643K 66 0 0 exec 0 0K 1K 78643K 299 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 102 21K 30K 78643K 3231 0 0 UVM aobj 17 2K 2K 78643K 17 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 55 0 0 NDP 13 0K 0K 78643K 41 0 0 temp 178 3551K 3624K 78643K 13344 0 0 kqueue 0 0K 0K 78643K 5 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 10 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 45 0 43 1 0 1 1 0 8 0 rtentry 112 67 0 23 2 0 2 2 0 8 0 unpcb 120 218 0 207 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 11064 0 11064 3 3 0 2 0 8 0 tcpcb 544 93 0 89 1 0 1 1 0 8 0 inpcb 280 361 0 354 2 1 1 2 0 8 0 nd6 48 12 0 6 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1128 17 0 17 3 2 1 1 0 8 1 pfosfp 40 846 0 846 5 5 0 5 0 8 0 pfosfpen 112 1428 0 1428 21 12 9 21 0 8 9 pfstitem 24 29 0 18 1 0 1 1 0 8 0 pfstkey 112 29 0 18 1 0 1 1 0 8 0 pfstate 328 29 0 18 2 0 2 2 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 256 283 0 88 13 0 13 13 0 8 0 art_table 32 284 0 88 2 0 2 2 0 8 0 art_node 16 66 0 26 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 5 2 1 1 1 0 8 0 semapl 112 80 0 70 1 0 1 1 0 8 0 shmpl 112 15 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2594 0 1169 47 0 47 47 0 8 0 ffsino 272 2594 0 1169 96 0 96 96 0 8 0 nchpl 144 3772 0 2136 62 0 62 62 0 8 0 uvmvnodes 72 3051 0 0 56 0 56 56 0 8 0 vnodes 200 3051 0 0 161 0 161 161 0 8 0 namei 1024 11436 0 11436 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 10681 0 10681 13 12 1 7 0 8 1 plimitpl 152 84 0 76 1 0 1 1 0 8 0 sigapl 432 920 0 904 3 1 2 3 0 8 0 futexpl 56 9180 0 9178 1 0 1 1 0 8 0 knotepl 112 205 0 186 1 0 1 1 0 8 0 kqueuepl 104 150 0 148 1 0 1 1 0 8 0 pipepl 112 560 0 541 2 1 1 2 0 8 0 fdescpl 488 921 0 904 3 0 3 3 0 8 0 filepl 152 5356 0 5252 6 1 5 5 0 8 0 lockfpl 104 247 0 247 2 1 1 1 0 8 1 lockfspl 48 86 0 86 2 1 1 1 0 8 1 sessionpl 112 21 0 10 1 0 1 1 0 8 0 pgrppl 48 31 0 20 1 0 1 1 0 8 0 ucredpl 96 969 0 960 1 0 1 1 0 8 0 zombiepl 144 904 0 904 2 1 1 1 0 8 1 processpl 896 938 0 904 4 0 4 4 0 8 0 procpl 632 2352 0 2305 6 1 5 5 0 8 1 srpgc 64 4 0 4 2 1 1 1 0 8 1 sosppl 128 9 0 9 2 2 0 1 0 8 0 sockpl 384 636 0 616 4 1 3 3 0 8 0 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 247 0 0 30 0 30 30 0 8 0 mtagpl 80 14 0 0 1 0 1 1 0 8 0 mbufpl 256 270 0 0 18 1 17 18 0 8 0 bufpl 256 7379 0 1169 389 0 389 389 0 8 0 anonpl 16 103139 0 93137 83 16 67 67 0 124 15 amapchunkpl 152 5240 0 5115 14 7 7 10 0 158 1 amappl16 192 4610 0 3934 64 22 42 46 0 8 8 amappl14 176 74 0 68 1 0 1 1 0 8 0 amappl13 168 14 0 12 2 1 1 1 0 8 0 amappl12 160 188 0 185 1 0 1 1 0 8 0 amappl11 152 233 0 215 1 0 1 1 0 8 0 amappl10 144 79 0 74 1 0 1 1 0 8 0 amappl9 136 933 0 929 1 0 1 1 0 8 0 amappl8 128 488 0 472 1 0 1 1 0 8 0 amappl7 120 45 0 38 1 0 1 1 0 8 0 amappl6 112 218 0 211 1 0 1 1 0 8 0 amappl5 104 359 0 344 1 0 1 1 0 8 0 amappl4 96 1036 0 1001 2 1 1 2 0 8 0 amappl3 88 374 0 363 1 0 1 1 0 8 0 amappl2 80 6334 0 6254 3 0 3 3 0 8 0 amappl1 72 29303 0 28856 24 14 10 19 0 8 0 amappl 80 2645 0 2601 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 16 0 0 1 0 1 1 0 8 0 uaddrrnd 24 921 0 904 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 921 0 904 1 0 1 1 0 8 0 vmmpekpl 168 11046 0 11011 2 0 2 2 0 8 0 vmmpepl 168 117640 0 115741 150 48 102 102 0 357 19 vmsppl 368 920 0 904 2 0 2 2 0 8 0 pdppl 4096 1849 0 1808 7 1 6 6 0 8 0 pvpl 32 300553 0 287266 197 38 159 163 0 265 28 pmappl 232 920 0 904 2 1 1 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 570 0 6 17 0 17 17 0 8 0