panic: broken type ref goroutine 23 [running]: github.com/google/syzkaller/prog.ArgCommon.Type(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:39 github.com/google/syzkaller/prog.foreachArgImpl(0x9b2c80, 0xc00352dec0, 0xc003543380, 0xc000b2f320) /syzkaller/gopath/src/github.com/google/syzkaller/prog/analysis.go:135 +0x81d github.com/google/syzkaller/prog.foreachArgImpl(0x9b2c80, 0xc00352de40, 0xc003543380, 0xc000b2f320) /syzkaller/gopath/src/github.com/google/syzkaller/prog/analysis.go:141 +0x2a3 github.com/google/syzkaller/prog.foreachArgImpl(0x9b2cc0, 0xc003544a50, 0xc003543380, 0xc000b2f320) /syzkaller/gopath/src/github.com/google/syzkaller/prog/analysis.go:156 +0x5e5 github.com/google/syzkaller/prog.ForeachArg(0xc003543300, 0xc000b2f320) /syzkaller/gopath/src/github.com/google/syzkaller/prog/analysis.go:122 +0xdd github.com/google/syzkaller/prog.getCompatibleResources(0xc0035432c0, 0x900149, 0xb, 0xc0026ffda0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:892 +0xb9 github.com/google/syzkaller/prog.(*randGen).resourceCentric(0xc0026ffda0, 0xc001d2ce60, 0xcac6a0, 0x0, 0x0, 0x0, 0xc0019c4c50, 0xc000b2f528, 0x792d89) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:840 +0xfe github.com/google/syzkaller/prog.(*ResourceType).generate(0xcac6a0, 0xc0026ffda0, 0xc001d2ce60, 0x0, 0x9b2c00, 0xc0019c4c50, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:669 +0x27c github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc0026ffda0, 0xc001d2ce60, 0x9b8fa0, 0xcac6a0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:658 +0x450 github.com/google/syzkaller/prog.(*randGen).generateArg(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:608 github.com/google/syzkaller/prog.(*randGen).generateArgs(0xc0026ffda0, 0xc001d2ce60, 0xd402e0, 0xc, 0xc, 0xaaaaaaaaaaaaaa00, 0x38, 0x8, 0x0, 0x0, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:596 +0x116 github.com/google/syzkaller/prog.(*StructType).generate(0xcb6c60, 0xc0026ffda0, 0xc001d2ce60, 0x0, 0xd79600, 0x0, 0x0, 0x20, 0x20) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:780 +0x7c github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc0026ffda0, 0xc001d2ce60, 0x9b9060, 0xcb6c60, 0x420000, 0x0, 0x0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:658 +0x450 github.com/google/syzkaller/prog.(*randGen).generateArg(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:608 github.com/google/syzkaller/prog.(*randGen).generateArgs(0xc0026ffda0, 0xc001d2ce60, 0xcb6e20, 0x2, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:596 +0x116 github.com/google/syzkaller/prog.(*StructType).generate(0xcb6de0, 0xc0026ffda0, 0xc001d2ce60, 0x0, 0xd79600, 0x0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:780 +0x7c github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc0026ffda0, 0xc001d2ce60, 0x9b9060, 0xcb6de0, 0xd70000, 0x0, 0x0, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:658 +0x450 github.com/google/syzkaller/prog.(*randGen).generateArg(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:608 github.com/google/syzkaller/prog.(*UnionType).mutate(0xcafaa0, 0xc0026ffda0, 0xc001d2ce60, 0x9b2d40, 0xc0026ff840, 0xc0026ff708, 0xcb5fa0, 0x2, 0x2, 0xc0029063c0, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:457 +0x178 github.com/google/syzkaller/prog.(*Target).mutateArg(0xc0000d3a00, 0xc0026ffda0, 0xc001d2ce60, 0x9b2d40, 0xc0026ff840, 0xc0026ff708, 0xcb5fa0, 0x2, 0x2, 0xc0029063c0, ...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:229 +0xe3 github.com/google/syzkaller/prog.(*mutator).mutateArg(0xc000b2fec0, 0xa) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:182 +0x288 github.com/google/syzkaller/prog.(*Prog).Mutate(0xc0016003c0, 0x9ac300, 0xc002906cc0, 0x14, 0xc002889240, 0xc002a06000, 0x26da, 0x3000) /syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:47 +0x32c main.(*Proc).loop(0xc002889280) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:95 +0x434 created by main.main /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:260 +0x1188 OpenBSD/amd64 (ci-openbsd-multicore-6.c.syzkaller.internal) (tty00) login: uvm_fault(0xfffffd807efffcf0, 0x8d, 0, 1) -> e kernel: page fault trap, code=0 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd807efffcf0, 0x8d, 0, 1) -> e in_delmulti(81) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff800020edf020, count: 0 ddb{0}> trace in_delmulti(81) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b24100) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000ac4000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000ac4000) at if_detach+0x140 sys/net/if.c:1149 tun_clone_destroy(ffff800000ac4000) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329 tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:480 spec_close(ffff800020edf200) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806ec7e4e8,7,fffffd807f7bf900,ffff800020ddd868) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd806698b998,ffff800020ddd868) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806698b998,ffff800020ddd868) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806698b998,ffff800020ddd868) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806698b998,ffff800020ddd868) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020ddd868) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020ddd868,0,d,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff800020ddd868,d) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff800020ddd868,d) at postsig+0x4ed sys/kern/kern_sig.c:1415 userret(ffff800020ddd868) at userret+0x199 sys/kern/kern_sig.c:1872 syscall(ffff800020edf680) at syscall+0x55f mi_syscall_return sys/sys/syscall_mi.h:129 [inline] syscall(ffff800020edf680) at syscall+0x55f sys/arch/amd64/amd64/trap.c:592 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff49b0, count: -17 ddb{0}> show registers rdi 0x2 rsi 0 rbp 0xffff800020edefd0 rbx 0 rdx 0xffff800020ddd868 rcx 0 rax 0 r8 0xffffffff81e23823 rt_ifa_purge+0x153 r9 0x5 r10 0x3 r11 0xcb4a4fcc538612af r12 0 r13 0x3 r14 0x81 r15 0x1 rip 0xffffffff8140ee1d in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020edef70 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{0}> show proc PROC (syz-executor.0) pid=14232 stat=onproc flags process=a proc=2000 pri=32, usrpri=77, nice=20 forw=0xffffffffffffffff, list=0xffff800020e404f0,0xffff800020e23888 process=0xffff800020df1348 user=0xffff800020eda000, vmspace=0xfffffd807efffcf0 estcpu=27, cpticks=2, pctcpu=0.17 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 91560 11858 0 0 3 0x14200 bored sosplice 65011 516023 61496 0 2 0x10008a ksh 61496 325106 72250 0 3 0x92 select sshd 12190 169597 1 0 3 0x100083 ttyin getty 72250 417018 1 0 3 0x80 select sshd 88584 213476 12005 74 3 0x100092 bpf pflogd 12005 226842 1 0 3 0x80 netio pflogd 13001 74982 62224 73 3 0x100090 kqread syslogd 62224 478116 1 0 3 0x100082 netio syslogd 55095 460941 1 77 7 0x100090 dhclient 21018 12951 1 0 3 0x80 poll dhclient 56615 420375 0 0 3 0x14200 bored smr 13675 499196 0 0 3 0x14200 pgzero zerothread 48263 310285 0 0 3 0x14200 aiodoned aiodoned 1374 491516 0 0 3 0x14200 syncer update 4164 491342 0 0 3 0x14200 cleaner cleaner 67823 511900 0 0 3 0x14200 reaper reaper 17739 149927 0 0 3 0x14200 pgdaemon pagedaemon 93394 140641 0 0 3 0x14200 bored crynlk 4830 55053 0 0 3 0x14200 bored crypto 91417 306840 0 0 3 0x40014200 acpi0 acpi0 46162 429513 0 0 3 0x40014200 idle1 99758 12005 0 0 2 0x14200 softnet 22306 316809 0 0 2 0x14200 systqmp 64268 119311 0 0 3 0x14200 bored systq 5538 112188 0 0 3 0x40014200 bored softclock 39286 305075 0 0 3 0x40014200 idle0 1 91580 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9485 6404K 6792K 78643K 10776 0 pcb 13 8K 8K 78643K 53 0 rtable 68 2K 5K 78643K 273 0 ifaddr 52 12K 13K 78643K 87 0 counters 41 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1494 0 iov 0 0K 24K 78643K 24 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1291 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 48 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 3 8K 25K 78643K 354 0 proc 62 63K 95K 78643K 445 0 subproc 14 0K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 12 0 in_multi 38 2K 2K 78643K 63 0 ether_multi 1 0K 0K 78643K 3 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 212 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 67 19K 38K 78643K 1914 0 UVM aobj 4 2K 2K 78643K 4 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 37 0 NDP 7 0K 0K 78643K 17 0 temp 82 3855K 3945K 78643K 5440 0 kqueue 2 2K 8K 78643K 8 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 arp 64 7 0 3 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 33 0 31 1 0 1 1 0 8 0 rtentry 112 48 0 24 2 0 2 2 0 8 0 unpcb 120 111 0 101 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 54 0 54 1 1 0 1 0 8 0 tcpcb 544 614 0 611 2 1 1 2 0 8 0 inpcb 296 772 0 766 4 2 2 3 0 8 1 nd6 48 7 0 3 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 ppxss 1128 2 0 2 1 1 0 1 0 8 0 pffrag 232 4 0 4 2 2 0 1 0 482 0 pffrnode 88 4 0 4 2 2 0 1 0 8 0 pffrent 40 8 0 8 2 2 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 pfrktable 1344 4 0 4 1 1 0 1 0 8 0 pfstitem 24 38 0 4 1 0 1 1 0 8 0 pfstkey 112 38 0 4 1 0 1 1 0 8 0 pfstate 328 38 0 4 3 0 3 3 0 8 0 pfrule 1360 22 0 17 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 220 0 43 13 1 12 12 0 8 0 art_table 32 221 0 43 2 0 2 2 0 8 0 art_node 16 47 0 19 1 0 1 1 0 8 0 semapl 112 44 0 34 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1805 0 397 90 1 89 89 0 8 0 ffsino 272 1805 0 397 95 0 95 95 0 8 1 nchpl 144 2643 0 1032 60 0 60 60 0 8 0 uvmvnodes 72 1896 0 0 35 0 35 35 0 8 0 vnodes 208 1896 0 0 100 0 100 100 0 8 0 namei 1024 6804 0 6804 1 0 1 1 0 8 1 percpumem 16 37 0 6 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 4 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 1 1 1 0 1 0 8 0 scxspl 192 7266 0 7266 8 7 1 7 0 8 1 plimitpl 152 25 0 17 1 0 1 1 0 8 0 sigapl 424 570 0 540 4 0 4 4 0 8 0 futexpl 56 4648 0 4648 1 0 1 1 0 8 1 knotepl 112 68 0 63 1 0 1 1 0 8 0 kqueuepl 144 30 0 29 1 0 1 1 0 8 0 pipelkpl 48 102 0 94 1 0 1 1 0 8 0 pipepl 120 204 0 193 1 0 1 1 0 8 0 fdescpl 496 554 0 540 3 0 3 3 0 8 0 filepl 152 3294 0 3226 6 1 5 6 0 8 1 lockfpl 104 21 0 20 1 0 1 1 0 8 0 lockfspl 48 9 0 8 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 201 0 192 1 0 1 1 0 8 0 zombiepl 144 542 0 539 1 0 1 1 0 8 0 processpl 984 570 0 539 6 1 5 5 0 8 1 procpl 624 1157 0 1126 4 0 4 4 0 8 0 sosppl 128 3 0 3 1 0 1 1 0 8 1 sockpl 400 918 0 900 5 2 3 5 0 8 1 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 199 0 0 24 0 24 24 0 8 0 mtagpl 96 17 0 0 1 0 1 1 0 8 0 mbufpl 256 206 0 0 12 0 12 12 0 8 0 bufpl 280 3876 0 132 268 0 268 268 0 8 0 anonpl 16 59787 0 58488 68 2 66 67 0 124 51 amapchunkpl 152 2891 0 2852 21 6 15 20 0 158 11 amappl16 192 2348 0 2333 45 1 44 45 0 8 38 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 305 0 301 1 0 1 1 0 8 0 amappl13 168 121 0 116 1 0 1 1 0 8 0 amappl12 160 5 0 5 2 1 1 1 0 8 1 amappl11 152 55 0 40 1 0 1 1 0 8 0 amappl10 144 27 0 25 1 0 1 1 0 8 0 amappl9 136 393 0 390 1 0 1 1 0 8 0 amappl8 128 352 0 351 2 0 2 2 0 8 1 amappl7 120 118 0 110 1 0 1 1 0 8 0 amappl6 112 24 0 24 2 1 1 1 0 8 1 amappl5 104 418 0 402 1 0 1 1 0 8 0 amappl4 96 532 0 506 1 0 1 1 0 8 0 amappl3 88 433 0 427 1 0 1 1 0 8 0 amappl2 80 3477 0 3418 2 0 2 2 0 8 0 amappl1 72 21496 0 21072 23 13 10 18 0 8 0 amappl 80 1398 0 1374 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 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 64 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 558 0 542 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 558 0 542 1 0 1 1 0 8 0 vmmpekpl 168 7879 0 7844 2 0 2 2 0 8 0 vmmpepl 168 72762 0 71810 121 30 91 113 0 357 38 vmsppl 368 557 0 542 2 0 2 2 0 8 0 pdppl 4096 1123 0 1086 8 2 6 6 0 8 0 pvpl 32 196763 0 193628 169 7 162 163 0 265 117 pmappl 232 557 0 542 3 1 2 2 0 8 1 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 268 0 10 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace in_delmulti(81) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b24100) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000ac4000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000ac4000) at if_detach+0x140 sys/net/if.c:1149 tun_clone_destroy(ffff800000ac4000) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329 tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:480 spec_close(ffff800020edf200) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806ec7e4e8,7,fffffd807f7bf900,ffff800020ddd868) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd806698b998,ffff800020ddd868) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806698b998,ffff800020ddd868) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806698b998,ffff800020ddd868) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806698b998,ffff800020ddd868) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020ddd868) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020ddd868,0,d,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff800020ddd868,d) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff800020ddd868,d) at postsig+0x4ed sys/kern/kern_sig.c:1415 userret(ffff800020ddd868) at userret+0x199 sys/kern/kern_sig.c:1872 syscall(ffff800020edf680) at syscall+0x55f mi_syscall_return sys/sys/syscall_mi.h:129 [inline] syscall(ffff800020edf680) at syscall+0x55f sys/arch/amd64/amd64/trap.c:592 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff49b0, count: -17 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d70ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __sanitizer_cov_trace_cmp4(963e8,963e9) at __sanitizer_cov_trace_cmp4+0x60 kd_curproc sys/dev/kcov.c:416 [inline] __sanitizer_cov_trace_cmp4(963e8,963e9) at __sanitizer_cov_trace_cmp4+0x60 trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(963e8,963e9) at __sanitizer_cov_trace_cmp4+0x60 sys/dev/kcov.c:135 __mp_lock(ffffffff8289db40) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8289db40) at __mp_lock+0x139 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff8289db40,2) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800020e172a0,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020e172a0,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020e172a0,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff828e06fc,118,ffffffff824494c8,41d909) at tsleep+0x1cc sys/kern/kern_synch.c:155 doppoll(ffff800020ddcc38,7f7ffffc82e0,3,ffff800020e17438,0,ffff800020e174f0) at doppoll+0x57e sys/kern/sys_generic.c:968 sys_poll(ffff800020ddcc38,ffff800020e174a0,ffff800020e174f0) at sys_poll+0xa6 syscall(ffff800020e17570) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e17570) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc82c0, count: -14