witness: lock_object uninitialized: 0xffff800000cde028 Starting stack trace... witness_checkorder(ffff800000cde028,9,0) at witness_checkorder+0x133 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000cde028,9,0) at witness_checkorder+0x133 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000cde018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000cde000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000cde000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000211f1900) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff800021253268,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff800021253268,ffff800021272870,ffff8000212728d0) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800021272940) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021272940) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff0200, count: 249 End of stack trace. Stopped at db_enter+0x18: addq $0x8,%rsp ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 witness_checkorder(ffff800000cde028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000cde028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000cde018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000cde000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000cde000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000211f1900) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff800021253268,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff800021253268,ffff800021272870,ffff8000212728d0) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800021272940) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021272940) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff0200, count: -9 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800021272610 rbx 0x3 rdx 0 rcx 0 rax 0xffff800021253268 r8 0xffff8000212725b0 r9 0x8080808080808080 r10 0x6dba315be2ccf78a r11 0xd7b4bd14b0ad4c47 r12 0xffff800000cde001 r13 0xffff800000cde028 r14 0 r15 0 rip 0xffffffff8167b298 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021272600 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.2) pid=345115 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff800021252d28,0xffff800021253a58 process=0xffff8000211f1900 user=0xffff80002126d000, vmspace=0xfffffd8061685190 estcpu=33, cpticks=18, pctcpu=0.1 user=0, sys=7, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 78739 125547 22194 0 2 0 syz-executor.1 78739 469885 22194 0 3 0x4000080 fsleep syz-executor.1 42320 491447 85712 0 2 0 syz-executor.3 42320 103757 85712 0 3 0x4000080 fsleep syz-executor.3 88932 375894 1368 0 2 0x2 syz-executor.0 56306 121319 1368 0 2 0x482 syz-executor.2 22194 340465 1368 0 2 0x482 syz-executor.1 85712 147726 1368 0 2 0x482 syz-executor.3 55579 21207 1 0 2 0x100083 getty 51143 123017 0 0 3 0x14200 bored sosplice 1368 301195 95405 0 3 0x82 thrsleep syz-fuzzer 1368 185679 95405 0 3 0x4000082 thrsleep syz-fuzzer 1368 479903 95405 0 3 0x4000082 thrsleep syz-fuzzer 1368 464101 95405 0 3 0x4000082 thrsleep syz-fuzzer 1368 12995 95405 0 3 0x4000082 thrsleep syz-fuzzer 1368 424808 95405 0 3 0x4000082 thrsleep syz-fuzzer 1368 506974 95405 0 3 0x4000082 thrsleep syz-fuzzer 1368 25847 95405 0 3 0x4000082 kqread syz-fuzzer 95405 459869 21853 0 3 0x10008a sigsusp ksh 21853 73292 49521 0 3 0x9a poll sshd 49521 121140 1 0 3 0x88 poll sshd 15908 204488 10970 74 2 0x100492 pflogd 10970 283195 1 0 3 0x80 netio pflogd 11759 461936 88062 73 2 0x100090 syslogd 88062 371571 1 0 3 0x100082 netio syslogd 41924 247590 1 0 3 0x100080 kqread resolvd 67988 130192 15288 77 3 0x100092 kqread dhcpleased 37563 388323 15288 77 3 0x100092 kqread dhcpleased 15288 414033 1 0 3 0x80 kqread dhcpleased 66307 322469 0 0 3 0x14200 bored smr 98383 15235 0 0 2 0x14200 zerothread 16755 133834 0 0 3 0x14200 aiodoned aiodoned 50202 437754 0 0 3 0x14200 syncer update 67163 366504 0 0 3 0x14200 cleaner cleaner 92543 193799 0 0 2 0x14200 reaper 48510 199871 0 0 3 0x14200 pgdaemon pagedaemon 94314 473409 0 0 3 0x14200 bored viomb 27706 113833 0 0 3 0x40014200 acpi0 acpi0 37065 518409 0 0 7 0x40014200 idle1 15418 355575 0 0 3 0x14200 bored softnet 32824 36677 0 0 3 0x14200 bored systqmp 57667 187712 0 0 3 0x14200 bored systq 6016 184249 0 0 2 0x40014200 softclock 74666 253895 0 0 3 0x40014200 idle0 1 403445 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 88932 (syz-executor.0) thread 0xffff800021253508 (375894) exclusive rwlock vmmaplk r = 0 (0xfffffd8067e6bd18) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5458 #3 uvmspace_fork+0x103 sys/uvm/uvm_map.c:4110 #4 process_new+0x181 sys/kern/kern_fork.c:263 #5 fork1+0x30b sys/kern/kern_fork.c:382 #6 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #6 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #7 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xfffffd8061685e98) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5458 #3 uvmspace_fork+0x37 sys/uvm/uvm_map.c:4101 #4 process_new+0x181 sys/kern/kern_fork.c:263 #5 fork1+0x30b sys/kern/kern_fork.c:382 #6 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #6 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #7 Xsyscall+0x128 Process 92543 (reaper) thread 0xffff800021148fc0 (193799) exclusive rwlock kmmaplk r = 0 (0xffffffff828839c8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5458 #3 uvm_unmap+0x78 sys/uvm/uvm_map.c:2068 #4 uvm_uarea_free+0x35 sys/uvm/uvm_glue.c:287 #5 reaper+0x158 sys/kern/kern_exit.c:451 #6 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10201 6494K 7260K 78643K 36800 0 pcb 13 18K 20K 78643K 1506 0 rtable 164 15K 17K 78643K 11373 0 ifaddr 75 18K 19K 78643K 4554 0 sysctl 2 0K 0K 78643K 2 0 counters 48 34K 35K 78643K 282 0 ioctlops 0 0K 12K 78643K 8381 0 iov 0 0K 16K 78643K 897 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1376 86K 87K 78643K 14789 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 76 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 3297 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 9 29K 49K 78643K 13818 0 sigio 0 0K 0K 78643K 57 0 proc 74 111K 124K 78643K 1554 0 subproc 52 3K 3K 78643K 415 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 389 0 in_multi 44 2K 3K 78643K 781 0 ether_multi 1 0K 0K 78643K 116 0 mrt 3 0K 0K 78643K 67 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 169 758K 758K 78643K 169 0 exec 0 0K 2K 78643K 2317 0 pfkey data 0 0K 1K 78643K 7 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 7 26K 26K 78643K 7 0 UVM amap 403 432K 434K 78643K 175513 0 UVM aobj 124 3K 3K 78643K 128 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 1091 0 NDP 11 0K 1K 78643K 218 0 temp 110 4218K 4297K 78643K 87163 0 kqueue 10 14K 22K 78643K 368 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> 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 120 581 0 578 6 5 1 3 0 8 0 rtentry 112 536 0 488 4 2 2 3 0 8 0 unpcb 136 6047 0 6032 68 63 5 7 0 8 4 syncache 296 43 0 43 15 14 1 1 0 8 1 tcpqe 32 38 0 38 9 9 0 1 0 8 0 tcpcb 736 5632 0 5626 129 124 5 18 0 8 3 arp 120 73 0 65 1 0 1 1 0 8 0 inpcb 304 20977 0 20968 116 109 7 14 0 8 6 rttmr 72 23 0 23 3 3 0 1 0 8 0 nd6 48 134 0 124 1 0 1 1 0 8 0 pkpcb 40 20 0 20 5 4 1 1 0 8 1 kcovpl 48 31 0 27 1 0 1 1 0 8 0 ppxss 1248 22 0 22 6 6 0 1 0 8 0 pfstscr 40 14 0 14 4 4 0 1 0 8 0 pffrag 232 33 0 31 2 1 1 1 0 482 0 pffrnode 88 31 0 29 2 1 1 1 0 8 0 pffrent 40 358 0 356 3 2 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 3656 0 3636 7 5 2 3 0 8 0 pftag 88 138 0 129 1 0 1 1 0 8 0 pfstitem 24 87 0 85 1 0 1 1 0 8 0 pfstkey 112 111 0 109 2 1 1 2 0 8 0 pfstate 320 97 0 95 4 3 1 4 0 8 0 pfrule 1360 6165 0 6051 11 1 10 10 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2651 0 2446 24 8 16 20 0 8 2 art_table 32 2652 0 2446 3 0 3 3 0 8 0 art_node 16 532 0 492 1 0 1 1 0 8 0 sysvmsgpl 40 45 0 5 1 0 1 1 0 8 0 semapl 112 3295 0 3285 1 0 1 1 0 8 0 shmpl 112 125 0 4 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 18651 0 17219 90 0 90 90 0 8 0 ffsino 272 18651 0 17219 96 0 96 96 0 8 0 nchpl 144 37334 0 35737 61 0 61 61 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 138106 0 138106 6 5 1 2 0 8 1 percpumem 16 153 0 117 1 0 1 1 0 8 0 vcpupl 2048 27 0 0 4 0 4 4 0 8 0 vmpool 560 35 0 8 2 0 2 2 0 8 0 pfiaddrpl 120 2931 0 2862 3 0 3 3 0 8 0 scxspl 216 104160 0 104160 23 22 1 8 0 8 1 plimitpl 152 928 0 917 1 0 1 1 0 8 0 sigapl 424 13998 0 13960 7 2 5 7 0 8 0 futexpl 64 135527 0 135525 3 2 1 1 0 8 0 knotepl 112 125 0 0 3 0 3 3 0 8 0 kqueuepl 216 4274 0 4267 45 44 1 8 0 8 0 pipepl 336 2214 0 2198 59 57 2 7 0 8 0 fdescpl 496 13962 0 13940 4 1 3 4 0 8 0 filepl 152 102547 0 102396 105 92 13 16 0 8 7 lockfpl 104 5477 0 5475 5 4 1 2 0 8 0 lockfspl 48 1862 0 1860 1 0 1 1 0 8 0 sessionpl 144 48 0 35 1 0 1 1 0 8 0 pgrppl 48 107 0 94 1 0 1 1 0 8 0 ucredpl 96 11746 0 11734 1 0 1 1 0 8 0 zombiepl 144 16231 0 16230 4 3 1 1 0 8 0 processpl 1064 13998 0 13960 4 1 3 4 0 8 0 procpl 672 38781 0 38733 16 11 5 8 0 8 0 srpgc 96 30 0 30 7 7 0 1 0 8 0 sosppl 168 45 0 45 6 6 0 1 0 8 0 sockpl 480 27757 0 27730 398 386 12 32 0 8 8 mcl64k 65536 29 0 0 3 0 3 3 0 8 0 mcl16k 16384 25 0 0 3 0 3 3 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 25 0 0 2 0 2 2 0 8 0 mcl8k 8192 18 0 0 3 0 3 3 0 8 0 mcl4k 4096 25 0 0 4 1 3 3 0 8 0 mcl2k2 2112 17 0 0 2 0 2 2 0 8 0 mcl2k 2048 223 0 0 21 4 17 21 0 8 0 mtagpl 96 568 0 0 12 0 12 12 0 8 0 mbufpl 256 5432 0 0 324 0 324 324 0 8 0 bufpl 288 25777 0 19433 454 0 454 454 0 8 0 anonpl 24 3850248 0 3832712 213 82 131 152 0 186 0 amapchunkpl 152 425197 0 424324 70 34 36 42 0 158 0 amappl16 200 32937 0 32331 99 66 33 45 0 8 0 amappl15 192 4466 0 4466 2 1 1 1 0 8 1 amappl14 184 6676 0 6674 1 0 1 1 0 8 0 amappl13 176 1352 0 1347 1 0 1 1 0 8 0 amappl12 168 1048 0 1047 1 0 1 1 0 8 0 amappl11 160 137 0 123 1 0 1 1 0 8 0 amappl10 152 1199 0 1188 1 0 1 1 0 8 0 amappl9 144 2408 0 2405 1 0 1 1 0 8 0 amappl8 136 2501 0 2403 4 0 4 4 0 8 0 amappl7 128 1646 0 1635 1 0 1 1 0 8 0 amappl6 120 2295 0 2268 1 0 1 1 0 8 0 amappl5 112 9828 0 9804 1 0 1 1 0 8 0 amappl4 104 6952 0 6925 1 0 1 1 0 8 0 amappl3 96 2281 0 2263 1 0 1 1 0 8 0 amappl2 88 3778 0 3728 5 3 2 2 0 8 0 amappl1 80 255257 0 254756 17 6 11 13 0 8 0 amappl 88 174507 0 174265 7 1 6 6 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 72 127 0 4 3 0 3 3 0 8 0 uaddrrnd 24 13997 0 13947 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 13997 0 13947 1 0 1 1 0 8 0 vmmpekpl 168 93275 0 93233 3 0 3 3 0 8 0 vmmpepl 168 1270190 0 1267901 330 206 124 133 0 357 17 vmsppl 368 13996 0 13947 5 0 5 5 0 8 0 rwobjpl 56 308416 0 300822 118 10 108 110 0 8 0 pdppl 4096 28002 0 27921 124 43 81 82 0 8 0 pvpl 32 6365096 0 6346413 339 159 180 213 0 265 0 pmappl 248 13996 0 13947 4 0 4 4 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 1367 0 245 33 0 33 33 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 witness_checkorder(ffff800000cde028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000cde028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000cde018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000cde000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000cde000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000211f1900) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff800021253268,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff800021253268,ffff800021272870,ffff8000212728d0) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800021272940) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021272940) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff0200, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a 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+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d38ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5