panic: malloc: allocatWiAoRNn ItNoGo: lSaPLrg NeO, T tLyOpWeE R=E D2 ,O Ns iSzYeSC A=L 1L 843 446 7E4X4I0T73 700 995 5 03Stopped at savectx+0xb1: movl $0,%gs:0x530 TID PID UID PRFLAGS PFLAGS CPU COMMAND 335772 53530 0 0 0x4000000 0 syz-executor.0 *409256 72251 74 0x100012 0 1 pflogd savectx(0,240,1f45cdf532b0,3,1f434b803b16,1f460841b000) at savectx+0xb1 end of kernel end trace frame: 0x7f7ffffced60, count: 14 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 malloc: allocation too large, type = 2, size = 18446744073709550336 ddb{1}> trace savectx(0,240,1f45cdf532b0,3,1f434b803b16,1f460841b000) at savectx+0xb1 end of kernel end trace frame: 0x7f7ffffced60, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020aab550 rbx 0 rdx 0xffff800020ac0ee0 rcx 0 rax 0x31 r8 0xffffffff816bf1ff kprintf+0x16f r9 0x1 r10 0x25 r11 0x64ab971fd2e1891b r12 0 r13 0 r14 0xffff800020ac0ee0 r15 0 rip 0xffffffff81ba13f1 savectx+0xb1 cs 0x8 rflags 0x46 rsp 0xffff800020aab4d0 ss 0x10 savectx+0xb1: movl $0,%gs:0x530 ddb{1}> show proc PROC (pflogd) pid=409256 stat=onproc flags process=100012 proc=0 pri=51, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020ac13d0,0xffff800020ac1658 process=0xffff800020add180 user=0xffff800020aa6000, vmspace=0xfffffd806e7e5008 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 53530 458590 34463 0 2 0 syz-executor.0 53530 287785 34463 0 3 0x4000080 lockf syz-executor.0 53530 335772 34463 0 7 0x4000000 syz-executor.0 34463 27578 97326 0 2 0x482 syz-executor.0 117 272090 97326 0 3 0x82 nanosleep syz-executor.1 13632 222549 0 0 3 0x14200 acct acct 18704 275393 1 0 3 0x100083 ttyin getty 75531 226957 0 0 3 0x14200 bored sosplice 97326 167489 53116 0 3 0x82 thrsleep syz-fuzzer 97326 350272 53116 0 3 0x4000082 thrsleep syz-fuzzer 97326 514801 53116 0 3 0x4000082 thrsleep syz-fuzzer 97326 358552 53116 0 3 0x4000082 thrsleep syz-fuzzer 97326 335918 53116 0 3 0x4000082 kqread syz-fuzzer 97326 406560 53116 0 3 0x4000082 thrsleep syz-fuzzer 97326 75605 53116 0 3 0x4000082 thrsleep syz-fuzzer 97326 409764 53116 0 3 0x4000082 thrsleep syz-fuzzer 97326 223487 53116 0 3 0x4000082 thrsleep syz-fuzzer 97326 222399 53116 0 3 0x4000082 thrsleep syz-fuzzer 53116 18628 36482 0 3 0x10008a pause ksh 36482 371846 10407 0 3 0x92 select sshd 10407 330540 1 0 3 0x80 select sshd *72251 409256 64165 74 7 0x100012 pflogd 64165 8397 1 0 3 0x80 netio pflogd 54194 92948 54114 73 3 0x100090 kqread syslogd 54114 452295 1 0 3 0x100082 netio syslogd 64122 101064 1 77 3 0x100090 poll dhclient 65108 189695 1 0 3 0x80 poll dhclient 82320 179279 0 0 3 0x14200 pgzero zerothread 72761 234322 0 0 3 0x14200 aiodoned aiodoned 14794 487743 0 0 3 0x14200 syncer update 91198 72154 0 0 3 0x14200 cleaner cleaner 4627 67681 0 0 3 0x14200 reaper reaper 73916 84988 0 0 3 0x14200 pgdaemon pagedaemon 18993 468347 0 0 3 0x14200 bored crynlk 15802 254642 0 0 3 0x14200 bored crypto 63900 167118 0 0 3 0x40014200 acpi0 acpi0 58610 234001 0 0 3 0x40014200 idle1 1896 464560 0 0 3 0x14200 bored softnet 33183 441208 0 0 3 0x14200 bored systqmp 11283 388166 0 0 3 0x14200 bored systq 62854 366844 0 0 3 0x40014200 bored softclock 58117 214958 0 0 3 0x40014200 idle0 90098 463227 0 0 3 0x14200 bored smr 1 176834 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 53530 (syz-executor.0) thread 0xffff800020acf8d0 (335772) shared rwlock vmlistlock r = 0 (0xffff80000066e478) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 vm_get_info+0x39 sys/arch/amd64/amd64/vmm.c:3712 #2 VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 #3 vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 #4 sys_ioctl+0x5b9 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82662188) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:83 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:555 #2 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9604 6719K 7670K 78643K 22615 0 0 pcb 13 8K 8K 78643K 553 0 0 rtable 115 12K 13K 78643K 1692 0 0 ifaddr 78 18K 20K 78643K 569 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1595 0 0 iov 0 0K 16K 78643K 444 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1214 76K 77K 78643K 5688 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 9K 78643K 62 0 0 VM map 2 1K 1K 78643K 10 0 0 sem 12 0K 0K 78643K 493 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 5 13K 25K 78643K 3936 0 0 sigio 0 0K 0K 78643K 34 0 0 proc 62 63K 95K 78643K 1518 0 0 subproc 32 2K 2K 78643K 329 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 1K 78643K 2220 0 0 in_multi 33 2K 2K 78643K 313 0 0 ether_multi 1 0K 0K 78643K 21 0 0 mrt 1 0K 0K 78643K 23 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 120 530K 530K 78643K 120 0 0 exec 0 0K 1K 78643K 743 0 0 pfkey data 0 0K 0K 78643K 2 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 106 21K 22K 78643K 14557 0 0 UVM aobj 130 5K 5K 78643K 140 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 1K 78643K 527 0 0 NDP 20 0K 0K 78643K 175 0 0 temp 214 3556K 4196K 78643K 67351 0 0 kqueue 0 0K 0K 78643K 39 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 43 0 37 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 244 0 242 1 0 1 1 0 8 0 rtentry 112 236 0 192 2 0 2 2 0 8 0 unpcb 120 1954 0 1938 2 1 1 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 5153 0 5153 1 1 0 1 0 8 0 tcpcb 544 923 0 919 1 0 1 1 0 8 0 inpcb 280 3616 0 3609 13 12 1 2 0 8 0 rttmr 72 2 0 2 2 2 0 1 0 8 0 nd6 48 38 0 34 1 0 1 1 0 8 0 pkpcb 40 20 0 20 7 7 0 1 0 8 0 ppxss 1128 87 0 87 13 12 1 1 0 8 1 pffrag 232 1 0 1 1 1 0 1 0 482 0 pffrnode 88 1 0 1 1 1 0 1 0 8 0 pffrent 40 3 0 3 1 1 0 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 127 0 105 1 0 1 1 0 8 0 pfstkey 112 127 0 105 1 0 1 1 0 8 0 pfstate 328 127 0 105 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 256 984 0 768 17 3 14 14 0 8 0 art_table 32 985 0 768 2 0 2 2 0 8 0 art_node 16 219 0 179 1 0 1 1 0 8 0 sysvmsgpl 40 27 0 19 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 491 0 481 1 0 1 1 0 8 0 shmpl 112 138 0 10 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 7456 0 6051 46 0 46 46 0 8 0 ffsino 272 7456 0 6051 95 0 95 95 0 8 0 nchpl 144 13842 0 12212 61 0 61 61 0 8 0 uvmvnodes 72 6119 0 0 112 0 112 112 0 8 0 vnodes 208 6119 0 0 323 0 323 323 0 8 0 namei 1024 57575 0 57575 3 2 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vmpool 552 8 0 8 3 3 0 1 0 8 0 scsiplug 64 6 0 6 4 4 0 1 0 8 0 scxspl 192 37571 0 37571 25 24 1 7 0 8 1 plimitpl 152 403 0 395 1 0 1 1 0 8 0 sigapl 432 4086 0 4071 3 1 2 3 0 8 0 futexpl 56 76914 0 76914 1 0 1 1 0 8 1 knotepl 112 934 0 915 1 0 1 1 0 8 0 kqueuepl 104 900 0 897 1 0 1 1 0 8 0 pipepl 112 1940 0 1919 6 5 1 2 0 8 0 fdescpl 488 4087 0 4071 3 0 3 3 0 8 0 filepl 152 39760 0 39652 17 11 6 6 0 8 1 lockfpl 104 1191 0 1187 1 0 1 1 0 8 0 lockfspl 48 424 0 421 1 0 1 1 0 8 0 sessionpl 112 36 0 25 1 0 1 1 0 8 0 pgrppl 48 304 0 293 1 0 1 1 0 8 0 ucredpl 96 14357 0 14347 1 0 1 1 0 8 0 zombiepl 144 4073 0 4072 3 2 1 1 0 8 0 processpl 896 4106 0 4072 4 0 4 4 0 8 0 procpl 632 12983 0 12938 5 0 5 5 0 8 0 srpgc 64 34 0 34 12 11 1 1 0 8 1 sosppl 128 41 0 41 12 11 1 1 0 8 1 sockpl 384 5892 0 5867 18 14 4 5 0 8 0 mcl64k 65536 19 0 0 3 0 3 3 0 8 0 mcl16k 16384 7 0 0 1 0 1 1 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 15 0 0 2 0 2 2 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 33 0 0 5 2 3 3 0 8 0 mcl2k2 2112 11 0 0 1 0 1 1 0 8 0 mcl2k 2048 146 0 0 17 1 16 17 0 8 0 mtagpl 80 30 0 0 1 0 1 1 0 8 0 mbufpl 256 677 0 0 30 0 30 30 0 8 0 bufpl 256 19468 0 12420 441 0 441 441 0 8 0 anonpl 16 405360 0 394103 184 115 69 90 0 124 8 amapchunkpl 152 26580 0 26470 23 17 6 10 0 158 0 amappl16 192 19875 0 19078 157 108 49 64 0 8 8 amappl15 184 487 0 482 4 3 1 1 0 8 0 amappl14 176 1623 0 1621 2 1 1 1 0 8 0 amappl13 168 71 0 71 2 2 0 1 0 8 0 amappl12 160 317 0 316 1 0 1 1 0 8 0 amappl11 152 1019 0 1004 1 0 1 1 0 8 0 amappl10 144 578 0 572 1 0 1 1 0 8 0 amappl9 136 931 0 924 1 0 1 1 0 8 0 amappl8 128 419 0 395 1 0 1 1 0 8 0 amappl7 120 673 0 663 1 0 1 1 0 8 0 amappl6 112 978 0 969 1 0 1 1 0 8 0 amappl5 104 561 0 547 1 0 1 1 0 8 0 amappl4 96 4182 0 4147 2 1 1 2 0 8 0 amappl3 88 944 0 937 1 0 1 1 0 8 0 amappl2 80 30889 0 30814 4 2 2 3 0 8 0 amappl1 72 101396 0 100951 26 16 10 20 0 8 0 amappl 80 13503 0 13464 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 64 139 0 10 3 0 3 3 0 8 0 uaddrrnd 24 4095 0 4071 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4095 0 4071 1 0 1 1 0 8 0 vmmpekpl 168 33661 0 33628 2 0 2 2 0 8 0 vmmpepl 168 509217 0 507280 266 152 114 114 0 357 22 vmsppl 368 4086 0 4071 2 0 2 2 0 8 0 pdppl 4096 8197 0 8158 7 1 6 6 0 8 0 pvpl 32 1091170 0 1076681 359 189 170 219 0 265 23 pmappl 232 4094 0 4079 5 4 1 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 633 0 12 18 0 18 18 0 8 0