kernel: page fault trap, code=0 Stopped at hardclock+0x10a: movq 0x260(%r14),%r15 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace hardclock(ffff800027e42de0) at hardclock+0x10a sys/kern/kern_clock.c:138 clockintr_hardclock(ffffffff82b5daa8,ffff800027e42de0) at clockintr_hardclock+0x58 sys/kern/kern_clockintr.c:503 clockintr_dispatch(ffff800027e42de0) at clockintr_dispatch+0x255 sys/kern/kern_clockintr.c:275 lapic_clockintr(0,0) at lapic_clockintr+0x3a sys/arch/amd64/amd64/lapic.c:482 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a uvm_objtree_RBT_COMPARE(ffff800027e42f38,fffffd80054f8b00) at uvm_objtree_RBT_COMPARE+0x2f uvm_pagecmp sys/uvm/uvm_page.c:87 [inline] uvm_objtree_RBT_COMPARE(ffff800027e42f38,fffffd80054f8b00) at uvm_objtree_RBT_COMPARE+0x2f sys/uvm/uvm_page.c:82 _rb_find(ffffffff82a1b578,fffffd8069172340,ffff800027e42f38) at _rb_find+0x58 sys/kern/subr_tree.c:450 uvm_pagelookup(fffffd8069172330,15e68000) at uvm_pagelookup+0x48 sys/uvm/uvm_page.c:1225 buf_map(fffffd8069172270) at buf_map+0x216 sys/kern/vfs_biomem.c:124 buf_get(0,0,1a10f7b2) at buf_get+0x763 sys/kern/vfs_bio.c:1189 geteblk(1a10f7b2) at geteblk+0x3c sys/kern/vfs_bio.c:1071 readdisklabel(2902,ffffffff81cc2de0,ffff800000d2c400,0) at readdisklabel+0x149 sys/arch/amd64/amd64/disksubr.c:96 vndopen(2902,8001,2000,ffff80002170b6a8) at vndopen+0x17e sys/dev/vnd.c:204 spec_open(ffff800027e43398) at spec_open+0x3e3 sys/kern/spec_vnops.c:150 VOP_OPEN(fffffd807227ede0,8001,fffffd807f7d7820,ffff80002170b6a8) at VOP_OPEN+0x70 sys/kern/vfs_vops.c:138 vn_open(ffff800027e435e8,8001,0) at vn_open+0x452 sys/kern/vfs_vnops.c:177 doopenat(ffff80002170b6a8,ffffff9c,20000080,8000,0,ffff800027e437c0) at doopenat+0x26e sys/kern/vfs_syscalls.c:1126 syscall(ffff800027e43840) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5027ee27660, count: -19 ddb> show registers rdi 0x3 rsi 0 rbp 0xffff800027e42cf0 rbx 0x1 rdx 0 rcx 0xffffffff82b5db10 cpu_info_full_primary+0x2b10 rax 0xffff80002170b6a8 r8 0 r9 0 r10 0 r11 0xd3c1a535ae1dbc9 r12 0xffff80002170b6a8 r13 0 r14 0 r15 0 rip 0xffffffff81c1e37a hardclock+0x10a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800027e42cc0 ss 0x10 hardclock+0x10a: movq 0x260(%r14),%r15 ddb> show proc PROC (kernel: page fault trap, code=0 Faulted in DDB; continuing... ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 97456 80609 80211 0 2 0 syz-executor.1 97456 227206 80211 0 3 0x4000080 fsleep syz-executor.1 7471 334636 5400 60928 2 0x10 syz-executor.0 7471 474719 5400 60928 3 0x4000090 fsleep syz-executor.0 7471 148350 5400 60928 3 0x4000090 fsleep syz-executor.0 7471 397152 5400 60928 3 0x4000090 fsleep syz-executor.0 75795 134610 57965 0 3 0x82 nanoslp syz-executor.6 68682 438711 0 0 3 0x14280 nfsidl nfsio ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10183 6439K 7784K 78643K 67002 0 pcb 13 18K 20K 78643K 1598 0 rtable 237 7K 7K 78643K 4463 0 pf 29 8K 10K 78643K 1295 0 ifaddr 43 19K 23K 78643K 930 0 ifgroup 50 2K 2K 78643K 2038 0 sysctl 3 1K 2K 78643K 19 0 counters 28 17K 17K 78643K 568 0 ioctlops 0 0K 2K 78643K 954 0 iov 0 0K 32K 78643K 4275 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1846 115K 116K 78643K 22565 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 608 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 2504 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 14 49K 77K 78643K 37515 0 sigio 0 0K 0K 78643K 1060 0 proc 60 59K 75K 78643K 5328 0 subproc 104 6K 7K 78643K 1618 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 2345 0 in_multi 99 7K 7K 78643K 2648 0 ether_multi 1 0K 0K 78643K 294 0 mrt 1 0K 0K 78643K 10 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 85 387K 387K 78643K 85 0 exec 0 0K 1K 78643K 7311 0 pfkey data 0 0K 1K 78643K 45 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 8 62K 64K 78643K 10 0 UVM amap 467 101K 112K 78643K 344906 0 UVM aobj 131 4K 4K 78643K 135 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 765 0 NDP 11 0K 2K 78643K 789 0 temp 75 5864K 5996K 78643K 298260 0 kqueue 12 18K 26K 78643K 2416 0 SYN cache 2 16K 24K 78643K 5 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 1552 0 1549 23 22 1 3 0 8 0 rtentry 112 1432 0 1322 5 1 4 4 0 8 0 unpcb 144 21451 0 21438 233 230 3 10 0 8 2 syncache 296 253 0 253 59 58 1 1 0 8 1 tcpqe 32 281 0 281 44 43 1 1 0 8 1 tcpcb 808 9924 0 9920 276 269 7 15 0 8 6 arp 88 240 0 222 1 0 1 1 0 8 0 ipq 40 72 0 71 16 15 1 1 0 8 0 ipqe 40 310 0 309 16 15 1 1 0 8 0 inpcb 336 20456 0 20449 341 334 7 17 0 8 6 nd6 104 395 0 371 1 0 1 1 0 8 0 pkpcb 40 151 0 151 18 18 0 1 0 8 0 kcovpl 48 119 0 111 1 0 1 1 0 8 0 ppxss 1160 179 0 179 41 40 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 5709 0 5235 48 17 31 32 0 8 0 art_table 32 5710 0 5235 7 3 4 5 0 8 0 art_node 16 1369 0 1269 1 0 1 1 0 8 0 sysvmsgpl 40 41 0 1 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 2502 0 2492 1 0 1 1 0 8 0 shmpl 112 132 0 4 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dirhash: pool(0xffffffff82d38af0:dirhash): free list modified: page 0xffff80002167f000; item ordinal 0; addr 0xffff800021680000 (p 0xfffffd806ee66000); offset 0x0=0x0 pool(dirhash): free list modified: page 0xffff80002167f000; item ordinal 0; addr 0xffff800021680000 (p 0xfffffd806ee66000); offset 0x0=0x0 dirhash: pool(0xffffffff82d38af0:dirhash): page inconsistency: page 0xffff80002167f000; item ordinal 1; addr 0xf7d535677bdeb03b dino2pl 256 50797 0 48946 116 0 116 116 0 8 0 ffsino 240 50797 0 48946 110 0 110 110 0 8 0 nchpl 144 101279 0 100773 63 42 21 63 0 8 0 uvmvnodes 80 13209 0 0 270 0 270 270 0 8 0 vnodes 216 13209 0 0 734 0 734 734 0 8 0 namei 1024 345595 0 345595 23 22 1 3 0 8 1 namei: pool(0xffffffff82cdc618:namei): free list modified: page 0xffff80002164f000; item ordinal 0; addr 0xffff800021650c00 (p 0xfffffd80714e4000); offset 0x0=0x0 pool(namei): free list modified: page 0xffff80002164f000; item ordinal 0; addr 0xffff800021650c00 (p 0xfffffd80714e4000); offset 0x0=0x0 namei: pool(0xffffffff82cdc618:namei): page inconsistency: page 0xffff80002164f000; item ordinal 1; addr 0x1205b03ad72f2f77 kstatmem 264 1102 0 1080 2 0 2 2 0 8 0 scxspl 216 331279 0 331279 95 92 3 8 0 8 3 plimitpl 152 4651 0 4636 1 0 1 1 0 8 0 sigapl 424 38783 0 38717 10 2 8 8 0 8 0 futexpl 64 350301 0 350296 12 11 1 1 0 8 0 knotepl 120 312845 0 312767 45 42 3 9 0 8 0 kqueuepl 184 6830 0 6822 99 98 1 7 0 8 0 pipepl 288 50056 0 50029 369 359 10 15 0 8 7 fdescpl 432 37563 0 37538 4 0 4 4 0 8 0 filepl 120 297942 0 297640 365 349 16 21 0 8 6 lockfpl 104 14003 0 14001 31 29 2 7 0 8 1 lockfspl 48 5486 0 5484 3 2 1 3 0 8 0 sessionpl 144 138 0 122 1 0 1 1 0 8 0 pgrppl 48 716 0 700 1 0 1 1 0 8 0 ucredpl 104 28206 0 28178 1 0 1 1 0 8 0 zombiepl 144 38721 0 38717 4 3 1 1 0 8 0 processpl 1008 38783 0 38717 15 6 9 9 0 8 0 processpl: pool(0xffffffff82d3f078:processpl): page inconsistency: page 0x0; at page head addr 0xffff8000216ebf90 (p 0xffff8000216ea000) processpl: pool(0xffffffff82d3f078:processpl): page inconsistency: page 0x0; at page head addr 0xffff8000216f1f90 (p 0xffff8000216f0000) procpl 696 94191 0 94106 30 21 9 10 0 8 0 procpl: pool(0xffffffff82d3eed0:procpl): page inconsistency: page 0x0; at page head addr 0xffff8000216d3f90 (p 0xffff8000216d2000) procpl: pool(0xffffffff82d3eed0:procpl): page inconsistency: page 0x0; at page head addr 0xffff80002170bf90 (p 0xffff80002170a000) sosppl 168 359 0 359 48 47 1 1 0 8 1 sockpl 456 43729 0 43699 935 922 13 34 0 8 8 mcl64k 65536 1582 0 1576 6 4 2 2 0 8 1 mcl16k 16384 833 0 833 67 66 1 1 0 8 1 mcl12k 12288 1306 0 1306 52 51 1 1 0 8 1 mcl9k 9216 658 0 658 68 67 1 1 0 8 1 mcl8k 8192 2077 0 2077 44 43 1 1 0 8 1 mcl4k 4096 3994 0 3994 38 37 1 3 0 8 1 mcl2k2 2112 240 0 240 80 79 1 1 0 8 1 mcl2k 2048 138196 0 138141 103 94 9 32 0 8 1 mtagpl 96 8017 0 7743 70 53 17 18 0 8 2 mbufpl 256 579111 0 578701 1944 1891 53 147 0 8 2 bufpl 288 78100 0 64888 944 0 944 944 0 8 0 anonpl 24 3428175 0 3413584 343 229 114 114 0 188 0 amapchunkpl 152 1088570 0 1087752 246 209 37 46 0 158 1 amappl16 200 67633 0 67205 278 246 32 43 0 8 8 amappl15 192 16 0 16 1 1 0 1 0 8 0 amappl14 184 509 0 495 2 1 1 2 0 8 0 amappl13 176 63 0 62 1 0 1 1 0 8 0 amappl12 168 39853 0 39826 2 0 2 2 0 8 0 amappl11 160 51 0 40 1 0 1 1 0 8 0 amappl10 152 191 0 178 2 1 1 1 0 8 0 amappl9 144 344 0 344 7 6 1 2 0 8 1 amappl8 136 1365 0 1166 10 3 7 7 0 8 0 amappl7 128 410 0 388 1 0 1 1 0 8 0 amappl6 120 1185 0 1162 2 1 1 2 0 8 0 amappl5 112 1255 0 1249 1 0 1 1 0 8 0 amappl4 104 2541 0 2507 2 0 2 2 0 8 0 amappl3 96 215409 0 215335 3 0 3 3 0 8 0 amappl2 88 38639 0 38577 4 2 2 3 0 8 0 amappl1 80 149779 0 149291 22 10 12 22 0 8 0 amappl 88 342596 0 342357 7 0 7 7 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 72 134 0 4 3 0 3 3 0 8 0 uaddrrnd 24 37563 0 37538 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 37563 0 37538 1 0 1 1 0 8 0 vmmpekpl 168 468857 0 468787 4 0 4 4 0 8 0 vmmpepl 168 2192151 0 2189871 375 248 127 131 0 357 0 vmsppl 368 37562 0 37538 3 0 3 3 0 8 0 rwobjpl 24 503276 0 488383 99 8 91 91 0 8 0 pdppl 4096 75132 0 75076 1496 1432 64 70 0 8 8 pvpl 32 10180247 0 10159932 930 728 202 354 0 265 8 pmappl 216 37562 0 37538 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 5935 0 4570 41 2 39 39 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace hardclock(ffff800027e42de0) at hardclock+0x10a sys/kern/kern_clock.c:138 clockintr_hardclock(ffffffff82b5daa8,ffff800027e42de0) at clockintr_hardclock+0x58 sys/kern/kern_clockintr.c:503 clockintr_dispatch(ffff800027e42de0) at clockintr_dispatch+0x255 sys/kern/kern_clockintr.c:275 lapic_clockintr(0,0) at lapic_clockintr+0x3a sys/arch/amd64/amd64/lapic.c:482 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a uvm_objtree_RBT_COMPARE(ffff800027e42f38,fffffd80054f8b00) at uvm_objtree_RBT_COMPARE+0x2f uvm_pagecmp sys/uvm/uvm_page.c:87 [inline] uvm_objtree_RBT_COMPARE(ffff800027e42f38,fffffd80054f8b00) at uvm_objtree_RBT_COMPARE+0x2f sys/uvm/uvm_page.c:82 _rb_find(ffffffff82a1b578,fffffd8069172340,ffff800027e42f38) at _rb_find+0x58 sys/kern/subr_tree.c:450 uvm_pagelookup(fffffd8069172330,15e68000) at uvm_pagelookup+0x48 sys/uvm/uvm_page.c:1225 buf_map(fffffd8069172270) at buf_map+0x216 sys/kern/vfs_biomem.c:124 buf_get(0,0,1a10f7b2) at buf_get+0x763 sys/kern/vfs_bio.c:1189 geteblk(1a10f7b2) at geteblk+0x3c sys/kern/vfs_bio.c:1071 readdisklabel(2902,ffffffff81cc2de0,ffff800000d2c400,0) at readdisklabel+0x149 sys/arch/amd64/amd64/disksubr.c:96 vndopen(2902,8001,2000,ffff80002170b6a8) at vndopen+0x17e sys/dev/vnd.c:204 spec_open(ffff800027e43398) at spec_open+0x3e3 sys/kern/spec_vnops.c:150 VOP_OPEN(fffffd807227ede0,8001,fffffd807f7d7820,ffff80002170b6a8) at VOP_OPEN+0x70 sys/kern/vfs_vops.c:138 vn_open(ffff800027e435e8,8001,0) at vn_open+0x452 sys/kern/vfs_vnops.c:177 doopenat(ffff80002170b6a8,ffffff9c,20000080,8000,0,ffff800027e437c0) at doopenat+0x26e sys/kern/vfs_syscalls.c:1126 syscall(ffff800027e43840) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5027ee27660, count: -19 ddb> machine ddbcpu 1 No such command ddb> trace hardclock(ffff800027e42de0) at hardclock+0x10a sys/kern/kern_clock.c:138 clockintr_hardclock(ffffffff82b5daa8,ffff800027e42de0) at clockintr_hardclock+0x58 sys/kern/kern_clockintr.c:503 clockintr_dispatch(ffff800027e42de0) at clockintr_dispatch+0x255 sys/kern/kern_clockintr.c:275 lapic_clockintr(0,0) at lapic_clockintr+0x3a sys/arch/amd64/amd64/lapic.c:482 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a uvm_objtree_RBT_COMPARE(ffff800027e42f38,fffffd80054f8b00) at uvm_objtree_RBT_COMPARE+0x2f uvm_pagecmp sys/uvm/uvm_page.c:87 [inline] uvm_objtree_RBT_COMPARE(ffff800027e42f38,fffffd80054f8b00) at uvm_objtree_RBT_COMPARE+0x2f sys/uvm/uvm_page.c:82 _rb_find(ffffffff82a1b578,fffffd8069172340,ffff800027e42f38) at _rb_find+0x58 sys/kern/subr_tree.c:450 uvm_pagelookup(fffffd8069172330,15e68000) at uvm_pagelookup+0x48 sys/uvm/uvm_page.c:1225 buf_map(fffffd8069172270) at buf_map+0x216 sys/kern/vfs_biomem.c:124 buf_get(0,0,1a10f7b2) at buf_get+0x763 sys/kern/vfs_bio.c:1189 geteblk(1a10f7b2) at geteblk+0x3c sys/kern/vfs_bio.c:1071 readdisklabel(2902,ffffffff81cc2de0,ffff800000d2c400,0) at readdisklabel+0x149 sys/arch/amd64/amd64/disksubr.c:96 vndopen(2902,8001,2000,ffff80002170b6a8) at vndopen+0x17e sys/dev/vnd.c:204 spec_open(ffff800027e43398) at spec_open+0x3e3 sys/kern/spec_vnops.c:150 VOP_OPEN(fffffd807227ede0,8001,fffffd807f7d7820,ffff80002170b6a8) at VOP_OPEN+0x70 sys/kern/vfs_vops.c:138 vn_open(ffff800027e435e8,8001,0) at vn_open+0x452 sys/kern/vfs_vnops.c:177 doopenat(ffff80002170b6a8,ffffff9c,20000080,8000,0,ffff800027e437c0) at doopenat+0x26e sys/kern/vfs_syscalls.c:1126 syscall(ffff800027e43840) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5027ee27660, count: -19