login: panic: timeout_add: to_ticks (-2147483648) < 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *483689 35524 0 0 0x4000000 0 syz-executor.0 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:208 timeout_add(ffff8000ffff2a18,80000000) at timeout_add+0x179 sys/kern/kern_timeout.c:190 msleep(ffff80000173f400,ffff80000173f408,11a,ffffffff81f56d13,80000000) at msleep+0x18e sleep_setup_timeout sys/kern/kern_synch.c:330 [inline] msleep(ffff80000173f400,ffff80000173f408,11a,ffffffff81f56d13,80000000) at msleep+0x18e sys/kern/kern_synch.c:210 bpfread(21700,ffff800014a29e60,0) at bpfread+0x1ef sys/net/bpf.c:486 spec_read(ffff800014a29ca0) at spec_read+0xf5 sys/kern/spec_vnops.c:223 VOP_READ(fffffd8030d17e50,ffff800014a29e60,0,fffffd803f7c6b40) at VOP_READ+0x6f sys/kern/vfs_vops.c:247 vn_read(fffffd8034c3ed30,ffff800014a29e60,0) at vn_read+0x1c3 sys/kern/vfs_vnops.c:365 dofilereadv(ffff8000ffff2978,3,ffff800014a29e60,0,ffff800014a29f40) at dofilereadv+0x19f sys/kern/sys_generic.c:236 sys_read(ffff8000ffff2978,ffff800014a29f58,ffff800014a29f40) at sys_read+0x92 sys/kern/sys_generic.c:156 syscall(ffff800014a29ff0) at syscall+0x541 Xsyscall(6,0,ffffffffffffffb9,0,3,9ed6064a010) at Xsyscall+0x128 end of kernel end trace frame: 0x9f046464020, count: 3 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic timeout_add: to_ticks (-2147483648) < 0 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:208 timeout_add(ffff8000ffff2a18,80000000) at timeout_add+0x179 sys/kern/kern_timeout.c:190 msleep(ffff80000173f400,ffff80000173f408,11a,ffffffff81f56d13,80000000) at msleep+0x18e sleep_setup_timeout sys/kern/kern_synch.c:330 [inline] msleep(ffff80000173f400,ffff80000173f408,11a,ffffffff81f56d13,80000000) at msleep+0x18e sys/kern/kern_synch.c:210 bpfread(21700,ffff800014a29e60,0) at bpfread+0x1ef sys/net/bpf.c:486 spec_read(ffff800014a29ca0) at spec_read+0xf5 sys/kern/spec_vnops.c:223 VOP_READ(fffffd8030d17e50,ffff800014a29e60,0,fffffd803f7c6b40) at VOP_READ+0x6f sys/kern/vfs_vops.c:247 vn_read(fffffd8034c3ed30,ffff800014a29e60,0) at vn_read+0x1c3 sys/kern/vfs_vnops.c:365 dofilereadv(ffff8000ffff2978,3,ffff800014a29e60,0,ffff800014a29f40) at dofilereadv+0x19f sys/kern/sys_generic.c:236 sys_read(ffff8000ffff2978,ffff800014a29f58,ffff800014a29f40) at sys_read+0x92 sys/kern/sys_generic.c:156 syscall(ffff800014a29ff0) at syscall+0x541 Xsyscall(6,0,ffffffffffffffb9,0,3,9ed6064a010) at Xsyscall+0x128 end of kernel end trace frame: 0x9f046464020, count: -12 ddb> show registers rdi 0xffffffff8185e037 db_enter+0x17 rsi 0x1533 __ALIGN_SIZE+0x533 rbp 0xffff800014a299c0 rbx 0xffff800014a29a70 rdx 0x1534 __ALIGN_SIZE+0x534 rcx 0xffff80000093b000 rax 0xffff80000093b000 r8 0xffff800014a29980 r9 0x1 r10 0xffff800000927940 r11 0x84db081dd648cbc r12 0x3000000008 r13 0xffff800014a299d0 r14 0x100 r15 0x1 rip 0xffffffff8185e038 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800014a299b0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.0) pid=483689 stat=onproc flags process=0 proc=4000000 pri=26, usrpri=75, nice=20 forw=0x0, list=0xffff8000ffff2bd0,0xffffffff822982a8 process=0xffff8000ffff69e8 user=0xffff800014a25000, vmspace=0xfffffd803f013840 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 35524 152450 9038 0 2 0 syz-executor.0 *35524 483689 9038 0 7 0x4000000 bpf syz-executor.0 41662 335975 9419 0 3 0x2 biowait syz-executor.1 9038 108710 9419 0 3 0x82 nanosleep syz-executor.0 9347 175061 1 0 3 0x100083 ttyin getty 21453 221725 0 0 3 0x14200 bored sosplice 9419 373822 66506 0 3 0x82 kqread syz-fuzzer 9419 157909 66506 0 3 0x4000082 nanosleep syz-fuzzer 9419 415456 66506 0 3 0x4000082 thrsleep syz-fuzzer 9419 190634 66506 0 3 0x4000082 thrsleep syz-fuzzer 9419 125546 66506 0 3 0x4000082 thrsleep syz-fuzzer 9419 511187 66506 0 3 0x4000082 thrsleep syz-fuzzer 9419 42422 66506 0 3 0x4000082 thrsleep syz-fuzzer 9419 343232 66506 0 3 0x4000082 thrsleep syz-fuzzer 9419 166067 66506 0 3 0x4000082 thrsleep syz-fuzzer 66506 197074 65592 0 3 0x10008a pause ksh 65592 198032 62751 0 3 0x92 select sshd 62751 214479 1 0 3 0x80 select sshd 75023 439199 94332 73 3 0x100090 kqread syslogd 94332 489890 1 0 3 0x100082 netio syslogd 10282 408993 1 77 3 0x100090 poll dhclient 16944 280842 1 0 3 0x80 poll dhclient 53138 403987 0 0 2 0x14200 zerothread 80259 300640 0 0 3 0x14200 aiodoned aiodoned 7275 312927 0 0 3 0x14200 syncer update 68007 401393 0 0 3 0x14200 cleaner cleaner 1107 251623 0 0 3 0x14200 reaper reaper 19721 234869 0 0 3 0x14200 pgdaemon pagedaemon 44095 198313 0 0 3 0x14200 bored crynlk 37931 94500 0 0 3 0x14200 bored crypto 50319 299120 0 0 3 0x40014200 acpi0 acpi0 85752 122930 0 0 3 0x14200 bored softnet 37115 177864 0 0 3 0x14200 bored systqmp 81593 391578 0 0 3 0x14200 bored systq 34684 33519 0 0 3 0x40014200 bored softclock 12413 46590 0 0 3 0x40014200 idle0 18344 351785 0 0 3 0x14200 bored smr 1 336664 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9579 6436K 14565K 78643K 14993 0 0 pcb 23 9K 12K 78643K 3160 0 0 rtable 100 3K 3K 78643K 2857 0 0 ifaddr 80 19K 19K 78643K 1042 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 152 0 0 iov 0 0K 32K 78643K 1040 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1186 74K 76K 78643K 5063 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 93 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 1K 78643K 866 0 0 dirhash 15 2K 2K 78643K 15 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 25K 78643K 6222 0 0 sigio 0 0K 0K 78643K 131 0 0 proc 42 30K 54K 78643K 2032 0 0 subproc 64 65538K 67586K 78643K 1747 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 751 0 0 in_multi 33 2K 2K 78643K 825 0 0 ether_multi 1 0K 0K 78643K 38 0 0 mrt 1 0K 0K 78643K 11 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 108 477K 477K 78643K 108 0 0 exec 0 0K 1K 78643K 1019 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 92 21K 38K 78643K 16143 0 0 UVM aobj 130 8K 8K 78643K 144 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 386 0 0 NDP 21 0K 1K 78643K 344 0 0 temp 219 2360K 2999K 78643K 23264 0 0 kqueue 0 0K 0K 78643K 82 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 53 0 49 1 0 1 1 0 8 0 inpcbpl 280 3234 0 3227 1 0 1 1 0 8 0 plimitpl 152 283 0 276 1 0 1 1 0 8 0 rtentry 112 482 0 442 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 sackhl 24 2 0 2 1 1 0 1 0 8 0 tcpcb 544 1149 0 1145 1 0 1 1 0 8 0 nd6 48 102 0 98 1 0 1 1 0 8 0 ppxss 1128 141 0 141 30 30 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2280 0 2090 12 0 12 12 0 8 0 art_table 32 2281 0 2090 2 0 2 2 0 8 0 art_node 16 481 0 447 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 0 1 0 1 1 0 8 0 semapl 112 862 0 852 1 0 1 1 0 8 0 shmpl 112 142 0 14 4 0 4 4 0 8 0 dirhash 1024 19 0 0 3 0 3 3 0 8 0 dino1pl 128 11684 0 10031 55 1 54 54 0 8 0 ffsino 240 11684 0 10031 98 0 98 98 0 8 0 nchpl 144 20669 0 18879 68 1 67 67 0 8 0 uvmvnodes 72 7068 0 0 129 0 129 129 0 8 0 vnodes 200 7068 0 0 372 0 372 372 0 8 0 namei 1024 69092 0 69091 4 3 1 1 0 8 0 scsiplug 64 20 0 20 13 13 0 1 0 8 0 scxspl 192 81236 0 81235 47 44 3 6 0 8 2 sigapl 432 6251 0 6238 2 0 2 2 0 8 0 futexpl 56 103768 0 103768 3 2 1 1 0 8 1 knotepl 112 2361 0 2342 3 2 1 2 0 8 0 kqueuepl 104 1770 0 1768 1 0 1 1 0 8 0 pipepl 112 3894 0 3875 7 6 1 2 0 8 0 fdescpl 424 6252 0 6238 2 0 2 2 0 8 0 filepl 120 41673 0 41578 9 5 4 5 0 8 1 lockfpl 104 1870 0 1870 8 7 1 1 0 8 1 lockfspl 32 1151 0 1151 8 7 1 1 0 8 1 sessionpl 112 72 0 62 1 0 1 1 0 8 0 pgrppl 48 163 0 153 1 0 1 1 0 8 0 ucredpl 96 8582 0 8575 1 0 1 1 0 8 0 zombiepl 144 6238 0 6238 2 1 1 1 0 8 1 processpl 840 6267 0 6238 4 0 4 4 0 8 0 procpl 600 14307 0 14269 6 2 4 5 0 8 0 sosppl 128 87 0 87 21 21 0 1 0 8 0 sockpl 384 5972 0 5955 12 9 3 4 0 8 1 mcl64k 65536 1401 0 1401 173 172 1 32 0 8 1 mcl16k 16384 16 0 16 13 12 1 1 0 8 1 mcl12k 12288 142 0 142 33 32 1 1 0 8 1 mcl9k 9216 102 0 102 39 38 1 1 0 8 1 mcl8k 8192 95 0 95 34 33 1 1 0 8 1 mcl4k 4096 346 0 346 16 15 1 1 0 8 1 mcl2k2 2112 37 0 37 26 25 1 1 0 8 1 mcl2k 2048 59023 0 58979 30 23 7 11 0 8 0 mtagpl 80 13 0 13 7 7 0 1 0 8 0 mbufpl 256 187267 0 187171 151 142 9 44 0 8 1 bufpl 256 25239 0 18112 446 0 446 446 0 8 0 anonpl 16 668181 0 660184 318 278 40 59 0 62 0 amapchunkpl 152 29391 0 29307 84 79 5 14 0 158 1 amappl16 192 34376 0 33863 279 252 27 41 0 8 0 amappl15 184 1724 0 1718 1 0 1 1 0 8 0 amappl14 176 921 0 920 2 1 1 1 0 8 0 amappl13 168 1553 0 1550 1 0 1 1 0 8 0 amappl12 160 497 0 496 1 0 1 1 0 8 0 amappl11 152 1233 0 1220 1 0 1 1 0 8 0 amappl10 144 963 0 962 4 3 1 1 0 8 0 amappl9 136 2020 0 2016 1 0 1 1 0 8 0 amappl8 128 1587 0 1560 1 0 1 1 0 8 0 amappl7 120 754 0 745 1 0 1 1 0 8 0 amappl6 112 1039 0 1030 1 0 1 1 0 8 0 amappl5 104 536 0 526 1 0 1 1 0 8 0 amappl4 96 6481 0 6453 2 1 1 2 0 8 0 amappl3 88 1372 0 1366 1 0 1 1 0 8 0 amappl2 80 55010 0 54957 2 0 2 2 0 8 0 amappl1 72 121327 0 120924 24 15 9 19 0 8 0 amappl 72 14898 0 14865 1 0 1 1 0 75 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 64 143 0 14 3 0 3 3 0 8 0 uaddrrnd 24 6252 0 6238 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 6252 0 6238 1 0 1 1 0 8 0 vmmpekpl 168 43859 0 43841 2 0 2 2 0 8 0 vmmpepl 168 654361 0 652917 383 301 82 88 0 357 12 vmsppl 264 6251 0 6238 6 5 1 2 0 8 0 pdppl 4096 12510 0 12476 6 1 5 6 0 8 0 pvpl 32 1980592 0 1969405 742 623 119 247 0 265 12 pmappl 200 6251 0 6238 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 990 0 403 19 0 19 19 0 8 0