uvm_fault(0xffffffff83963648, 0xffff800029ef5000, 0, 1) -> e kernel: page fault trap, code=0 Stopped at pvclock_get+0x53: movl 0(%r15),%r12d TID PID UID PRFLAGS PFLAGS CPU COMMAND *463895 99534 0 0x10 0x4000000 0 syz-executor pvclock_get(ffffffff838f2b00) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838f2b00) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nsecuptime() at nsecuptime+0x62 tc_delta sys/kern/kern_tc.c:138 [inline] nsecuptime() at nsecuptime+0x62 binuptime sys/kern/kern_tc.c:191 [inline] nsecuptime() at nsecuptime+0x62 sys/kern/kern_tc.c:257 clockintr_dispatch(ffff80003b8e4a40) at clockintr_dispatch+0xe8 sys/kern/kern_clockintr.c:180 lapic_clockintr(0,0) at lapic_clockintr+0x43 sys/arch/amd64/amd64/lapic.c:482 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a __sanitizer_cov_trace_cmp8(ffff80003b8e4c18,0) at __sanitizer_cov_trace_cmp8+0x4 kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_cmp8(ffff80003b8e4c18,0) at __sanitizer_cov_trace_cmp8+0x4 sys/dev/kcov.c:212 uvm_pmr_freepageq(ffff80003b8e4c18) at uvm_pmr_freepageq+0x1b0 sys/uvm/uvm_pmemrange.c:1388 uvm_obj_free(fffffd806b5dfaa0) at uvm_obj_free+0xfe sys/uvm/uvm_object.c:241 buf_dealloc_mem(fffffd806b5df9e0) at buf_dealloc_mem+0x14e sys/kern/vfs_biomem.c:179 buf_put(fffffd806b5df9e0) at buf_put+0x1d9 sys/kern/vfs_bio.c:123 brelse(fffffd806b5df9e0) at brelse+0x397 sys/kern/vfs_bio.c:932 writedisklabel(d02,ffffffff83128080,ffff800000039000) at writedisklabel+0x1b8 sys/arch/amd64/amd64/disksubr.c:158 sdioctl(d02,84946467,ffff8000015fc000,3,ffff80002f0c1a08) at sdioctl+0x959 sys/scsi/sd.c:921 VOP_IOCTL(fffffd806c1721f0,84946467,ffff8000015fc000,3,fffffd8007ffd410,ffff80002f0c1a08) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 end trace frame: 0xffff80003b8e4fe0, count: 0 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 *cpu0: uvm_fault(0xffffffff83963648, 0xffff800029ef5000, 0, 1) -> e ddb> trace pvclock_get(ffffffff838f2b00) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838f2b00) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nsecuptime() at nsecuptime+0x62 tc_delta sys/kern/kern_tc.c:138 [inline] nsecuptime() at nsecuptime+0x62 binuptime sys/kern/kern_tc.c:191 [inline] nsecuptime() at nsecuptime+0x62 sys/kern/kern_tc.c:257 clockintr_dispatch(ffff80003b8e4a40) at clockintr_dispatch+0xe8 sys/kern/kern_clockintr.c:180 lapic_clockintr(0,0) at lapic_clockintr+0x43 sys/arch/amd64/amd64/lapic.c:482 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a __sanitizer_cov_trace_cmp8(ffff80003b8e4c18,0) at __sanitizer_cov_trace_cmp8+0x4 kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_cmp8(ffff80003b8e4c18,0) at __sanitizer_cov_trace_cmp8+0x4 sys/dev/kcov.c:212 uvm_pmr_freepageq(ffff80003b8e4c18) at uvm_pmr_freepageq+0x1b0 sys/uvm/uvm_pmemrange.c:1388 uvm_obj_free(fffffd806b5dfaa0) at uvm_obj_free+0xfe sys/uvm/uvm_object.c:241 buf_dealloc_mem(fffffd806b5df9e0) at buf_dealloc_mem+0x14e sys/kern/vfs_biomem.c:179 buf_put(fffffd806b5df9e0) at buf_put+0x1d9 sys/kern/vfs_bio.c:123 brelse(fffffd806b5df9e0) at brelse+0x397 sys/kern/vfs_bio.c:932 writedisklabel(d02,ffffffff83128080,ffff800000039000) at writedisklabel+0x1b8 sys/arch/amd64/amd64/disksubr.c:158 sdioctl(d02,84946467,ffff8000015fc000,3,ffff80002f0c1a08) at sdioctl+0x959 sys/scsi/sd.c:921 VOP_IOCTL(fffffd806c1721f0,84946467,ffff8000015fc000,3,fffffd8007ffd410,ffff80002f0c1a08) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd80769af718,84946467,ffff8000015fc000,ffff80002f0c1a08) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80002f0c1a08,ffff80003b8e51c0,ffff80003b8e5110) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80003b8e51c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003b8e51c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x366ce193910, count: -18 ddb> show registers rdi 0xffffffff rsi 0xd rbp 0xffff80003b8e4930 rbx 0xa rdx 0xffff8000015d9ec0 rcx 0 rax 0xc r8 0 r9 0 r10 0 r11 0x6c9aa5f1fd3ae7aa r12 0xf6a r13 0xffffffff838e5a28 th1 r14 0xffffffff838f2b00 pvclock_timecounter r15 0xffff800029ef5000 rip 0xffffffff82ac13d3 pvclock_get+0x53 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003b8e48e0 ss 0x10 pvclock_get+0x53: movl 0(%r15),%r12d ddb> show proc PROC (syz-executor) tid=463895 pid=99534 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=82, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002f0c1770,0xffff80002f0c0a88 process=0xffff8000338d1698 user=0xffff80003b8e0000, vmspace=0xfffffd8073407010 estcpu=32, cpticks=283, pctcpu=2.83, user=0, sys=283, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 8402 172921 92242 0 2 0 syz-executor 8402 132034 92242 0 3 0x4000080 fsleep syz-executor 13327 255191 82638 0 2 0 syz-executor 13327 111251 82638 0 3 0x4000080 fsleep syz-executor 41124 210084 74225 0 2 0 syz-executor 41124 469766 74225 0 3 0x4000080 fsleep syz-executor 56320 297458 58363 0 2 0 syz-executor 56320 113023 58363 0 3 0x4000080 fsleep syz-executor 99534 204518 23917 0 2 0x10 syz-executor *99534 463895 23917 0 7 0x4000010 syz-executor 71735 20021 45823 0 2 0xc80 syz-executor 71735 360956 45823 0 3 0x4000080 kqsel syz-executor 71735 261639 45823 0 3 0x4000080 fsleep syz-executor 90681 377670 0 0 2 0x14e00 acct 67106 401333 55356 0 2 0x2 syz-executor 85305 36550 55356 0 2 0x2 syz-executor 74225 15486 55356 0 2 0xc82 syz-executor 23917 148511 55356 0 2 0xc82 syz-executor 58363 420707 55356 0 2 0xc82 syz-executor 45823 390050 55356 0 2 0xc82 syz-executor 82638 511897 55356 0 2 0xc82 syz-executor 92242 473649 55356 0 2 0xc82 syz-executor 55356 479146 67296 0 2 0xc82 syz-executor 67296 166678 85345 0 3 0x10008a sigsusp ksh 85345 501250 520 0 3 0x98 kqread sshd-session 520 230669 51498 0 3 0x92 kqread sshd-session 65947 352983 1 0 3 0x100083 ttyopn getty 51498 76047 1 0 3 0x88 kqread sshd 76325 380634 20292 73 3 0x1100090 kqread syslogd 20292 204710 1 0 3 0x100082 sbwait syslogd 10256 380026 1 0 3 0x100080 kqread resolvd 42393 494869 1861 77 3 0x100092 kqread dhcpleased 18746 66680 1861 77 3 0x100092 kqread dhcpleased 1861 71731 1 0 3 0x80 kqread dhcpleased 63153 121898 0 0 2 0x14200 smr 30820 328438 0 0 2 0x14200 zerothread 55102 117791 0 0 3 0x14200 aiodoned aiodoned 88351 251901 0 0 2 0x14e00 update 99958 402939 0 0 3 0x14200 cleaner cleaner 85227 351276 0 0 3 0x14200 reaper reaper 18170 214637 0 0 3 0x14200 pgdaemon pagedaemon 83965 496336 0 0 3 0x14200 bored viomb 50865 115291 0 0 3 0x40014200 acpi0 acpi0 84059 497873 0 0 3 0x14200 bored softnet0 59781 8446 0 0 3 0x14200 smrbar systqmp 35584 70807 0 0 3 0x14200 bored systq 8658 261422 0 0 2 0x40014200 softclock 17101 130887 0 0 3 0x40014200 idle0 1 322233 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 devbuf 11040 12166K 12412K 166960K 12581 0 pcb 17 12K 12K 166960K 90 0 rtable 211 7K 8K 166960K 445 0 pf 30 13K 15K 166960K 84 0 ifaddr 38 6K 7K 166960K 67 0 ifgroup 46 2K 2K 166960K 102 0 sysctl 1 1K 9K 166960K 6 0 counters 32 17K 18K 166960K 57 0 ioctlops 1 2K 4K 166960K 171 0 iov 0 0K 8K 166960K 12 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1357 85K 86K 166960K 1892 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 19 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 93K 166960K 494 0 sigio 0 0K 0K 166960K 7 0 proc 61 59K 75K 166960K 527 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 59 0 in_multi 87 6K 7K 166960K 122 0 ether_multi 1 0K 0K 166960K 8 0 mrt 0 0K 0K 166960K 22 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 390 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 211 150K 168K 166960K 6147 0 UVM aobj 14 2K 4K 166960K 15 0 pinsyscall 37 74K 94K 166960K 1595 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 11 0 NDP 10 0K 2K 166960K 42 0 temp 78 9076K 9140K 166960K 36060 0 kqueue 13 20K 28K 166960K 66 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 129 0 126 3 0 3 3 0 8 2 rtentry 136 131 0 42 4 0 4 4 0 8 0 unpcb 144 592 0 575 9 0 9 9 0 8 8 syncache 336 8 0 8 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 736 181 0 174 7 0 7 7 0 8 6 arp 96 19 0 3 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 328 407 0 393 8 0 8 8 0 8 5 nd6 112 26 0 5 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1072 16 0 16 1 0 1 1 0 8 1 pppxif 1416 5 0 5 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pffrag 232 5 0 2 1 0 1 1 0 482 0 pffrnode 88 3 0 0 1 0 1 1 0 8 0 pffrent 40 7 0 4 1 0 1 1 0 8 0 pfrktable 1344 1 0 1 1 0 1 1 0 8 1 pfsrclim 320 1 0 1 1 0 1 1 0 8 1 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 1 1 0 1 1 0 8 1 pfstkey 128 4 0 4 1 0 1 1 0 8 1 pfstate 384 2 0 2 1 0 1 1 0 8 1 pfrule 1360 5 0 5 1 0 1 1 0 8 1 rttmr 136 3 0 3 1 0 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 528 0 128 30 0 30 30 0 8 3 art_table 40 531 0 128 5 0 5 5 0 8 0 art_node 32 128 0 43 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 17 0 7 1 0 1 1 0 8 0 shmpl 112 12 0 1 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2372 0 918 92 0 92 92 0 8 0 ffsino 256 2372 0 918 92 0 92 92 0 8 0 nchpl 144 3082 0 1392 64 0 64 64 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 vnodes 216 2728 0 0 152 0 152 152 0 8 0 namei 1024 9833 0 9833 2 0 2 2 0 8 2 kstatmem 264 53 0 32 2 0 2 2 0 8 0 scsiplug 72 3 0 3 1 0 1 1 0 8 1 scxspl 216 13216 0 13216 8 0 8 8 1 8 8 plimitpl 152 70 0 52 1 0 1 1 0 8 0 sigapl 424 789 0 747 6 0 6 6 0 8 1 knotepl 120 16100 0 16053 9 0 9 9 0 8 6 kqueuepl 184 235 0 225 6 0 6 6 0 8 5 pipepl 304 135 0 108 3 0 3 3 0 8 0 fdescpl 448 775 0 747 5 0 5 5 0 8 1 filepl 120 4849 0 4630 18 2 16 18 0 8 7 lockfpl 104 254 0 252 2 0 2 2 0 8 1 lockfspl 48 52 0 50 1 0 1 1 0 8 0 sessionpl 144 42 0 34 1 0 1 1 0 8 0 pgrppl 48 122 0 106 1 0 1 1 0 8 0 ucredpl 104 904 0 892 1 0 1 1 0 8 0 zombiepl 144 747 0 747 1 0 1 1 0 8 1 processpl 1152 789 0 747 4 0 4 4 0 8 0 procpl 664 1345 0 1296 6 0 6 6 0 8 1 sockpl 552 1157 0 1123 19 9 10 17 0 8 6 mcl64k 65536 21 0 21 1 0 1 1 0 8 1 mcl8k 8192 41 0 41 1 0 1 1 0 8 1 mcl4k 4096 3004 0 2951 15 0 15 15 0 8 7 mcl2k 2048 434 0 430 1 0 1 1 0 8 0 mtagpl 96 6 0 4 1 0 1 1 0 8 0 mbufpl 256 8676 0 8475 25 6 19 25 0 8 5 bufpl 280 6468 0 254 444 0 444 444 0 8 0 anonpl 24 140656 0 137555 53 0 53 53 0 187 30 amapchunkpl 152 19587 0 19153 35 0 35 35 0 158 16 amappl16 200 2745 0 2711 18 7 11 15 0 8 8 amappl15 192 6 0 6 1 0 1 1 0 8 1 amappl14 184 408 0 407 1 0 1 1 0 8 0 amappl13 176 116 0 106 1 0 1 1 0 8 0 amappl12 168 1014 0 987 2 0 2 2 0 8 0 amappl11 160 3 0 3 1 0 1 1 0 8 1 amappl10 152 57 0 47 1 0 1 1 0 8 0 amappl9 144 256 0 256 1 0 1 1 0 8 1 amappl8 136 98 0 96 1 0 1 1 0 8 0 amappl7 128 162 0 151 1 0 1 1 0 8 0 amappl6 120 152 0 150 1 0 1 1 0 8 0 amappl5 112 92 0 84 1 0 1 1 0 8 0 amappl4 104 261 0 245 1 0 1 1 0 8 0 amappl3 96 3751 0 3650 4 0 4 4 0 8 0 amappl2 88 536 0 480 2 0 2 2 0 8 0 amappl1 80 11389 0 10845 15 0 15 15 0 8 2 amappl 88 5387 0 5238 5 0 5 5 0 92 1 uvmvnodes 80 112 0 0 3 0 3 3 0 8 0 dma8192 8192 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 14 0 1 1 0 1 1 0 8 0 uaddrrnd 24 775 0 747 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 775 0 747 1 0 1 1 0 8 0 vmmpekpl 168 7995 0 7961 2 0 2 2 0 8 0 vmmpepl 168 57158 0 55429 93 0 93 93 0 357 13 vmsppl 368 774 0 747 4 0 4 4 0 8 1 rwobjpl 40 18530 0 17572 13 0 13 13 0 8 0 pdppl 4096 1556 0 1494 104 38 66 80 0 8 4 pvpl 32 365879 0 357292 138 0 138 138 0 265 58 pmappl 216 774 0 747 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 392 0 44 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pvclock_get(ffffffff838f2b00) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838f2b00) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nsecuptime() at nsecuptime+0x62 tc_delta sys/kern/kern_tc.c:138 [inline] nsecuptime() at nsecuptime+0x62 binuptime sys/kern/kern_tc.c:191 [inline] nsecuptime() at nsecuptime+0x62 sys/kern/kern_tc.c:257 clockintr_dispatch(ffff80003b8e4a40) at clockintr_dispatch+0xe8 sys/kern/kern_clockintr.c:180 lapic_clockintr(0,0) at lapic_clockintr+0x43 sys/arch/amd64/amd64/lapic.c:482 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a __sanitizer_cov_trace_cmp8(ffff80003b8e4c18,0) at __sanitizer_cov_trace_cmp8+0x4 kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_cmp8(ffff80003b8e4c18,0) at __sanitizer_cov_trace_cmp8+0x4 sys/dev/kcov.c:212 uvm_pmr_freepageq(ffff80003b8e4c18) at uvm_pmr_freepageq+0x1b0 sys/uvm/uvm_pmemrange.c:1388 uvm_obj_free(fffffd806b5dfaa0) at uvm_obj_free+0xfe sys/uvm/uvm_object.c:241 buf_dealloc_mem(fffffd806b5df9e0) at buf_dealloc_mem+0x14e sys/kern/vfs_biomem.c:179 buf_put(fffffd806b5df9e0) at buf_put+0x1d9 sys/kern/vfs_bio.c:123 brelse(fffffd806b5df9e0) at brelse+0x397 sys/kern/vfs_bio.c:932 writedisklabel(d02,ffffffff83128080,ffff800000039000) at writedisklabel+0x1b8 sys/arch/amd64/amd64/disksubr.c:158 sdioctl(d02,84946467,ffff8000015fc000,3,ffff80002f0c1a08) at sdioctl+0x959 sys/scsi/sd.c:921 VOP_IOCTL(fffffd806c1721f0,84946467,ffff8000015fc000,3,fffffd8007ffd410,ffff80002f0c1a08) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd80769af718,84946467,ffff8000015fc000,ffff80002f0c1a08) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80002f0c1a08,ffff80003b8e51c0,ffff80003b8e5110) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80003b8e51c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003b8e51c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x366ce193910, count: -18 ddb> machine ddbcpu 1 No such command ddb> trace pvclock_get(ffffffff838f2b00) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline] pvclock_get(ffffffff838f2b00) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333 nsecuptime() at nsecuptime+0x62 tc_delta sys/kern/kern_tc.c:138 [inline] nsecuptime() at nsecuptime+0x62 binuptime sys/kern/kern_tc.c:191 [inline] nsecuptime() at nsecuptime+0x62 sys/kern/kern_tc.c:257 clockintr_dispatch(ffff80003b8e4a40) at clockintr_dispatch+0xe8 sys/kern/kern_clockintr.c:180 lapic_clockintr(0,0) at lapic_clockintr+0x43 sys/arch/amd64/amd64/lapic.c:482 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a __sanitizer_cov_trace_cmp8(ffff80003b8e4c18,0) at __sanitizer_cov_trace_cmp8+0x4 kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_cmp8(ffff80003b8e4c18,0) at __sanitizer_cov_trace_cmp8+0x4 sys/dev/kcov.c:212 uvm_pmr_freepageq(ffff80003b8e4c18) at uvm_pmr_freepageq+0x1b0 sys/uvm/uvm_pmemrange.c:1388 uvm_obj_free(fffffd806b5dfaa0) at uvm_obj_free+0xfe sys/uvm/uvm_object.c:241 buf_dealloc_mem(fffffd806b5df9e0) at buf_dealloc_mem+0x14e sys/kern/vfs_biomem.c:179 buf_put(fffffd806b5df9e0) at buf_put+0x1d9 sys/kern/vfs_bio.c:123 brelse(fffffd806b5df9e0) at brelse+0x397 sys/kern/vfs_bio.c:932 writedisklabel(d02,ffffffff83128080,ffff800000039000) at writedisklabel+0x1b8 sys/arch/amd64/amd64/disksubr.c:158 sdioctl(d02,84946467,ffff8000015fc000,3,ffff80002f0c1a08) at sdioctl+0x959 sys/scsi/sd.c:921 VOP_IOCTL(fffffd806c1721f0,84946467,ffff8000015fc000,3,fffffd8007ffd410,ffff80002f0c1a08) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd80769af718,84946467,ffff8000015fc000,ffff80002f0c1a08) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80002f0c1a08,ffff80003b8e51c0,ffff80003b8e5110) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80003b8e51c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003b8e51c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x366ce193910, count: -18