kernel: page fault trap, code=0 Stopped at softclock+0xc7: movq %rcx,0x8(%rax) ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace softclock(0) at softclock+0xc7 sys/kern/kern_timeout.c:713 softintr_dispatch(0) at softintr_dispatch+0xd1 sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f buf_get(0,0,1c3c000) at buf_get+0x750 sys/kern/vfs_bio.c:1186 geteblk(1c3c000) at geteblk+0x2c sys/kern/vfs_bio.c:1061 readdisklabel(2902,ffffffff81a39c40,ffff800000d18000,0) at readdisklabel+0x145 sys/arch/amd64/amd64/disksubr.c:96 vndopen(2902,1,2000,ffff8000216f0b10) at vndopen+0x17a sys/dev/vnd.c:203 spec_open(ffff8000265bbfa8) at spec_open+0x3df sys/kern/spec_vnops.c:150 VOP_OPEN(fffffd806ef7cb50,1,fffffd807f7d78f0,ffff8000216f0b10) at VOP_OPEN+0x6c sys/kern/vfs_vops.c:138 vn_open(ffff8000265bc1f8,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:177 doopenat(ffff8000216f0b10,ffffff9c,20000240,0,0,ffff8000265bc3d0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1127 syscall(ffff8000265bc450) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe9d49b07b40, count: -13 ddb> show registers rdi 0x101 rsi 0x1 rbp 0xffff8000265bbb80 rbx 0x1 rdx 0 rcx 0xffffffff82c10a70 timeout_todo rax 0 r8 0x2b r9 0x2b r10 0x18d83a6f61498f63 r11 0xc7054e0f16b0524a r12 0xffffffff r13 0xffffffff82c75da0 rdrand_tmo r14 0x1 r15 0xffff8000216f03a8 rip 0xffffffff81ad72f7 softclock+0xc7 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000265bbb40 ss 0x10 softclock+0xc7: movq %rcx,0x8(%rax) ddb> show proc PROC (kernel: page fault trap, code=0 Faulted in DDB; continuing... ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 94199 347876 2042 0 2 0 syz-executor.0 15731 481559 69661 0 3 0x80 nanoslp syz-executor.1 5328 430140 0 0 3 0x14280 nfsidl nfsio 43166 344202 0 0 3 0x14280 nfsidl nfsio 90172 42983 0 0 3 0x14280 nfsidl nfsio 4409 418621 0 0 3 0x14280 nfsidl nfsio 64738 399609 0 0 3 0x14280 nfsidl nfsio 20352 42749 0 0 3 0x14280 nfsidl nfsio 55120 318215 0 0 3 0x14280 nfsidl nfsio 73539 322275 0 0 3 0x14280 nfsidl nfsio 1606 244443 0 0 3 0x14280 nfsidl nfsio 71510 385181 0 0 3 0x14280 nfsidl nfsio 22488 44030 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 10205 6553K 7591K 78643K 20769 0 pcb 16 14K 16K 78643K 687 0 rtable 247 16K 17K 78643K 1293 0 ifaddr 82 22K 23K 78643K 261 0 sysctl 2 0K 1K 78643K 9 0 counters 28 17K 17K 78643K 137 0 ioctlops 0 0K 2K 78643K 1114 0 iov 0 0K 28K 78643K 266 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1447 90K 91K 78643K 5214 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 23 0 VM map 2 1K 1K 78643K 2 0 sem 31 3K 5K 78643K 405 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 16 57K 73K 78643K 2593 0 sigio 1 0K 0K 78643K 76 0 proc 58 59K 75K 78643K 915 0 subproc 104 6K 7K 78643K 286 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 270 0 in_multi 99 6K 6K 78643K 353 0 ether_multi 1 0K 0K 78643K 36 0 mrt 1 0K 0K 78643K 9 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 79 360K 360K 78643K 79 0 exec 0 0K 1K 78643K 861 0 pfkey data 0 0K 0K 78643K 3 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 291 85K 92K 78643K 19295 0 UVM aobj 86 3K 3K 78643K 89 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 1 0K 0K 78643K 67 0 NDP 13 0K 1K 78643K 98 0 temp 132 5770K 5966K 78643K 63480 0 kqueue 13 18K 24K 78643K 230 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 354 0 351 7 4 3 3 0 8 2 rtentry 112 433 0 323 4 0 4 4 0 8 0 unpcb 144 2141 0 2120 31 28 3 6 0 8 2 syncache 296 29 0 29 6 6 0 1 0 8 0 tcpqe 32 28 0 28 4 4 0 1 0 8 0 tcpcb 776 1337 0 1331 60 55 5 11 0 8 4 arp 88 46 0 28 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 336 3290 0 3270 59 54 5 12 0 8 3 nd6 48 73 0 49 1 0 1 1 0 8 0 pkpcb 40 14 0 14 5 5 0 1 0 8 0 kcovpl 48 22 0 14 1 0 1 1 0 8 0 ppxss 1160 84 0 84 5 5 0 1 0 8 0 pppxif 1360 7 0 7 3 3 0 1 0 8 0 pfstscr 40 5 0 5 2 2 0 1 0 8 0 pfosfp 40 3 0 2 1 0 1 1 0 8 0 pfosfpen 112 3 0 2 1 0 1 1 0 8 0 pfanchor 1280 734 7 222 43 0 43 43 0 8 0 pfstkey 128 10 0 10 2 2 0 1 0 8 0 pfstate 352 5 0 5 2 2 0 1 0 8 0 art_heap8 4096 3 0 2 3 2 1 2 0 8 0 art_heap4 256 1386 0 927 44 15 29 30 0 8 0 art_table 32 1389 0 929 4 0 4 4 0 8 0 art_node 16 298 0 198 1 0 1 1 0 8 0 sysvmsgpl 40 36 0 5 1 0 1 1 0 8 0 semapl 112 397 0 368 1 0 1 1 0 8 0 shmpl 112 86 0 3 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dirhash: pool(0xffffffff82bd74a8:dirhash): free list modified: page 0xffff8000216b1000; item ordinal 0; addr 0xffff8000216b2400 (p 0xfffffd806e3aa000); offset 0x0=0x0 pool(dirhash): free list modified: page 0xffff8000216b1000; item ordinal 0; addr 0xffff8000216b2400 (p 0xfffffd806e3aa000); offset 0x0=0x0 dirhash: pool(0xffffffff82bd74a8:dirhash): page inconsistency: page 0xffff8000216b1000; item ordinal 1; addr 0x29ae4a72ef052d64 dino2pl 256 5141 0 3702 91 0 91 91 0 8 0 ffsino 240 5141 0 3702 86 0 86 86 0 8 0 nchpl 144 8683 0 7044 63 0 63 63 0 8 0 rtmask 32 3 0 3 1 1 0 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 35150 0 35150 3 2 1 3 0 8 1 namei: pool(0xffffffff82c74a18:namei): free list modified: page 0xffff8000216b3000; item ordinal 0; addr 0xffff8000216b4c00 (p 0xfffffd8069e74000); offset 0x0=0x0 pool(namei): free list modified: page 0xffff8000216b3000; item ordinal 0; addr 0xffff8000216b4c00 (p 0xfffffd8069e74000); offset 0x0=0x0 namei: pool(0xffffffff82c74a18:namei): page inconsistency: page 0xffff8000216b3000; item ordinal 1; addr 0xfc1f76e0236350b9 vmpool 664 40 0 40 2 2 0 1 0 8 0 kstatmem 264 96 0 70 2 0 2 2 0 8 0 scsiplug 72 6 0 6 2 2 0 1 0 8 0 scxspl 216 24845 0 24845 13 12 1 8 0 8 1 plimitpl 152 320 0 305 1 0 1 1 0 8 0 sigapl 424 2905 0 2839 9 1 8 8 0 8 0 futexpl 64 27992 0 27990 1 0 1 1 0 8 0 knotepl 120 57850 0 57769 15 8 7 7 0 8 3 kqueuepl 184 953 0 942 19 15 4 4 0 8 3 pipepl 288 886 0 857 17 14 3 7 0 8 0 fdescpl 432 2846 0 2819 4 0 4 4 0 8 0 filepl 120 25547 0 25287 61 49 12 16 0 8 3 lockfpl 104 501 0 499 1 0 1 1 0 8 0 lockfspl 48 129 0 127 1 0 1 1 0 8 0 sessionpl 144 38 0 22 1 0 1 1 0 8 0 pgrppl 48 285 0 269 1 0 1 1 0 8 0 ucredpl 104 3461 0 3450 1 0 1 1 0 8 0 zombiepl 144 2840 0 2839 1 0 1 1 0 8 0 processpl 1008 2905 0 2839 12 3 9 9 0 8 0 processpl: pool(0xffffffff82cf3698:processpl): page inconsistency: page 0x0; at page head addr 0xffff8000216dff90 (p 0xffff8000216de000) procpl 696 7619 0 7532 13 4 9 10 0 8 1 procpl: pool(0xffffffff82cf34f0:procpl): page inconsistency: page 0x0; at page head addr 0xffff8000216f1f90 (p 0xffff8000216f0000) sosppl 168 45 0 44 6 5 1 1 0 8 0 sockpl 456 5811 0 5767 163 151 12 29 0 8 6 mcl64k 65536 93 0 93 11 10 1 1 0 8 1 mcl16k 16384 54 0 54 11 10 1 1 0 8 1 mcl12k 12288 111 0 111 9 8 1 1 0 8 1 mcl9k 9216 32 0 32 11 10 1 1 0 8 1 mcl8k 8192 179 0 179 9 8 1 1 0 8 1 mcl4k 4096 332 0 332 2 1 1 1 0 8 1 mcl2k2 2112 24 0 24 10 9 1 1 0 8 1 mcl2k 2048 81539 0 81460 40 28 12 30 0 8 1 mtagpl 96 2029 0 1364 22 3 19 20 0 8 0 mbufpl 256 165673 0 164792 357 288 69 107 0 8 3 bufpl 288 8461 0 2067 458 0 458 458 0 8 0 anonpl 24 623841 0 606753 136 23 113 130 0 188 0 amapchunkpl 152 65960 0 65271 62 33 29 47 0 158 0 amappl16 200 6968 0 6394 66 35 31 46 0 8 0 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 203 0 192 2 1 1 2 0 8 0 amappl13 176 16 0 15 1 0 1 1 0 8 0 amappl12 168 572 0 566 1 0 1 1 0 8 0 amappl11 160 47 0 37 1 0 1 1 0 8 0 amappl10 152 46 0 37 1 0 1 1 0 8 0 amappl9 144 981 0 979 1 0 1 1 0 8 0 amappl8 136 267 0 201 3 0 3 3 0 8 0 amappl7 128 174 0 152 2 0 2 2 0 8 0 amappl6 120 225 0 216 2 1 1 2 0 8 0 amappl5 112 211 0 204 1 0 1 1 0 8 0 amappl4 104 633 0 607 2 1 1 2 0 8 0 amappl3 96 8024 0 7971 2 0 2 2 0 8 0 amappl2 88 3374 0 3302 3 0 3 3 0 8 0 amappl1 80 67568 0 66842 30 13 17 26 0 8 0 amappl 88 18593 0 18419 5 0 5 5 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 88 0 3 2 0 2 2 0 8 0 uaddrrnd 24 2886 0 2859 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2886 0 2859 1 0 1 1 0 8 0 vmmpekpl 168 29751 0 29702 3 0 3 3 0 8 0 vmmpepl 168 275270 0 272542 224 97 127 144 0 357 2 vmsppl 344 2885 0 2859 3 0 3 3 0 8 0 rwobjpl 24 80230 0 72538 49 1 48 49 0 8 0 pdppl 4096 5778 0 5718 396 332 64 68 0 8 4 pvpl 32 1256871 0 1234316 364 172 192 333 0 265 0 pmappl 216 2885 0 2859 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1596 0 769 25 0 25 25 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace softclock(0) at softclock+0xc7 sys/kern/kern_timeout.c:713 softintr_dispatch(0) at softintr_dispatch+0xd1 sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f buf_get(0,0,1c3c000) at buf_get+0x750 sys/kern/vfs_bio.c:1186 geteblk(1c3c000) at geteblk+0x2c sys/kern/vfs_bio.c:1061 readdisklabel(2902,ffffffff81a39c40,ffff800000d18000,0) at readdisklabel+0x145 sys/arch/amd64/amd64/disksubr.c:96 vndopen(2902,1,2000,ffff8000216f0b10) at vndopen+0x17a sys/dev/vnd.c:203 spec_open(ffff8000265bbfa8) at spec_open+0x3df sys/kern/spec_vnops.c:150 VOP_OPEN(fffffd806ef7cb50,1,fffffd807f7d78f0,ffff8000216f0b10) at VOP_OPEN+0x6c sys/kern/vfs_vops.c:138 vn_open(ffff8000265bc1f8,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:177 doopenat(ffff8000216f0b10,ffffff9c,20000240,0,0,ffff8000265bc3d0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1127 syscall(ffff8000265bc450) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe9d49b07b40, count: -13 ddb> machine ddbcpu 1 No such command ddb> trace softclock(0) at softclock+0xc7 sys/kern/kern_timeout.c:713 softintr_dispatch(0) at softintr_dispatch+0xd1 sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f buf_get(0,0,1c3c000) at buf_get+0x750 sys/kern/vfs_bio.c:1186 geteblk(1c3c000) at geteblk+0x2c sys/kern/vfs_bio.c:1061 readdisklabel(2902,ffffffff81a39c40,ffff800000d18000,0) at readdisklabel+0x145 sys/arch/amd64/amd64/disksubr.c:96 vndopen(2902,1,2000,ffff8000216f0b10) at vndopen+0x17a sys/dev/vnd.c:203 spec_open(ffff8000265bbfa8) at spec_open+0x3df sys/kern/spec_vnops.c:150 VOP_OPEN(fffffd806ef7cb50,1,fffffd807f7d78f0,ffff8000216f0b10) at VOP_OPEN+0x6c sys/kern/vfs_vops.c:138 vn_open(ffff8000265bc1f8,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:177 doopenat(ffff8000216f0b10,ffffff9c,20000240,0,0,ffff8000265bc3d0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1127 syscall(ffff8000265bc450) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe9d49b07b40, count: -13