uvm_fault(0xffffffff82880c30, 0xffffffff8269afa0, 0, 2) -> e kernel: page fault trap, code=0 Stopped at m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff82880c30, 0xffffffff8269afa0, 0, 2) -> e m_copyback(ffff8000244d4830,1a0,0,ffff8000244d49f4,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff8000244d4830,1a0,0,ffff8000244d49f4,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 end trace frame: 0xffff8000244d4ab0, count: 0 ddb{0}> trace m_copyback(ffff8000244d4830,1a0,0,ffff8000244d49f4,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff8000244d4830,1a0,0,ffff8000244d49f4,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044a00,ffff8000244d4ad8,fffffd807b5ac800) at pflog_mtap+0x446 sys/net/if_pflog.c:390 pflog_packet(ffff8000244d4bd8,0,ffff800000ac9fe8,0,ffffffff828b8150,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b14000,ffff8000244d4ea8) at pf_test+0xfd2 sys/net/pf.c:7228 ip6_input_if(ffff8000244d4ea8,ffff8000244d4eb4,29,0,ffff800000b14000) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b14000,fffffd807b5ac800) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d01,ffff8000244d5198,ffff8000222cc000,2) at tun_dev_write+0x204 sys/net/if_tun.c:867 spec_write(ffff8000244d4ff0) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806e2e74e8,ffff8000244d5198,11,fffffd807f7b7960) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:274 vn_write(fffffd806c8038f8,ffff8000244d5198,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff80002123c7e0,f0,ffff8000244d5198,0,ffff8000244d5280) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80002123c7e0,ffff8000244d5230,ffff8000244d5280) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff8000244d5300) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000244d5300) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa9fec489fc0, count: -14 ddb{0}> show registers rdi 0 rsi 0x9043f acpi_pdirpa+0x7c2a7 rbp 0xffff8000244d4810 rbx 0xffffffffffffa75b rdx 0x9043e acpi_pdirpa+0x7c2a6 rcx 0xffffffff826c74c0 mbstat_boot_boot_cpumem rax 0 r8 0x2 r9 0x1 r10 0x2a3b5354882ea006 r11 0x156b1380f73bfe99 r12 0xfffffd806d892000 r13 0x170 r14 0x30 r15 0xffff8000244d4a10 rip 0xffffffff8138ea09 m_copyback+0x119 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000244d4750 ss 0x10 m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> show proc PROC (syz-executor.1) pid=319275 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80002123cd20,0xffffffff829166e8 process=0xffff800021234870 user=0xffff8000244d0000, vmspace=0xfffffd80084922e0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 63471 371449 31006 0 2 0 syz-executor.1 *63471 319275 31006 0 7 0x4000000 syz-executor.1 60872 96761 86953 0 3 0x2 biowait syz-executor.0 31006 355696 86953 0 3 0x82 nanosleep syz-executor.1 41986 300893 1 0 3 0x100083 ttyin getty 67159 910 0 0 3 0x14200 bored sosplice 86953 422159 29152 0 3 0x82 kqread syz-fuzzer 86953 84254 29152 0 3 0x4000082 nanosleep syz-fuzzer 86953 62120 29152 0 3 0x4000082 thrsleep syz-fuzzer 86953 85775 29152 0 3 0x4000082 thrsleep syz-fuzzer 86953 187332 29152 0 3 0x4000082 thrsleep syz-fuzzer 86953 493831 29152 0 3 0x4000082 thrsleep syz-fuzzer 86953 72554 29152 0 3 0x4000082 thrsleep syz-fuzzer 86953 519635 29152 0 3 0x4000082 nanosleep syz-fuzzer 29152 343584 65441 0 3 0x10008a pause ksh 65441 352903 25868 0 3 0x92 select sshd 25868 20524 1 0 3 0x80 select sshd 14872 134485 94647 74 3 0x100092 bpf pflogd 94647 466408 1 0 3 0x80 netio pflogd 51088 242205 92396 73 3 0x100090 kqread syslogd 92396 235154 1 0 3 0x100082 netio syslogd 47996 333683 1 77 3 0x100090 poll dhclient 78890 147947 1 0 3 0x80 poll dhclient 46416 471364 0 0 3 0x14200 bored smr 30028 3119 0 0 2 0x14200 zerothread 69914 380325 0 0 3 0x14200 aiodoned aiodoned 9579 101307 0 0 3 0x14200 syncer update 79609 480195 0 0 3 0x14200 cleaner cleaner 72651 138126 0 0 3 0x14200 reaper reaper 64243 423283 0 0 3 0x14200 pgdaemon pagedaemon 31891 2642 0 0 3 0x14200 bored crynlk 84070 175150 0 0 3 0x14200 bored crypto 67212 438435 0 0 3 0x14200 bored viomb 28246 492089 0 0 3 0x40014200 acpi0 acpi0 72449 114248 0 0 7 0x40014200 idle1 95046 115325 0 0 3 0x14200 bored softnet 41053 245396 0 0 3 0x14200 bored systqmp 75107 207815 0 0 3 0x14200 bored systq 58648 382162 0 0 3 0x40014200 bored softclock 54750 343368 0 0 3 0x40014200 idle0 1 349318 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 63471 (syz-executor.1) thread 0xffff80002123c7e0 (319275) exclusive rwlock netlock r = 0 (0xffffffff826e0430) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1176 #1 tun_dev_write+0x1f9 sys/net/if_tun.c:866 #2 spec_write+0xd4 sys/kern/spec_vnops.c:309 #3 VOP_WRITE+0xc6 sys/kern/vfs_vops.c:274 #4 vn_write+0x14e sys/kern/vfs_vnops.c:414 #5 dofilewritev+0x1ab sys/kern/sys_generic.c:365 #6 sys_write+0x83 sys/kern/sys_generic.c:285 #7 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #7 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 #8 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828b6aa8) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1176 #1 vn_write+0x42 sys/kern/vfs_vnops.c:399 #2 dofilewritev+0x1ab sys/kern/sys_generic.c:365 #3 sys_write+0x83 sys/kern/sys_generic.c:285 #4 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #4 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 #5 Xsyscall+0x128 Process 60872 (syz-executor.0) thread 0xffff80002123d500 (96761) exclusive rrwlock inode r = 0 (0xfffffd806ed56b38) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1176 #1 rw_enter+0x446 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 ufs_ihashins+0x45 sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x135 sys/ufs/ffs/ffs_vfsops.c:1350 #5 ffs_inode_alloc+0x1e1 sys/ufs/ffs/ffs_alloc.c:394 #6 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #7 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:459 #8 domkdirat+0x121 sys/kern/vfs_syscalls.c:3064 #9 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #9 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ae801a8) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1176 #1 rw_enter+0x446 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:614 #4 vn_lock+0x6c sys/kern/vfs_vnops.c:575 #5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x5f7 sys/kern/vfs_lookup.c:249 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3049 #8 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9555 6570K 7069K 78643K 14997 0 pcb 13 8K 8K 78643K 172 0 rtable 109 4K 5K 78643K 607 0 ifaddr 81 15K 15K 78643K 169 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 73 0 ioctlops 0 0K 4K 78643K 1667 0 iov 0 0K 12K 78643K 125 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 2759 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 30 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 307 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 5 13K 25K 78643K 4544 0 sigio 0 0K 0K 78643K 61 0 proc 69 63K 95K 78643K 801 0 subproc 32 2K 2K 78643K 85 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 209 0 in_multi 33 2K 2K 78643K 192 0 ether_multi 1 0K 0K 78643K 40 0 mrt 0 0K 0K 78643K 38 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 2K 78643K 581 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 169 29K 43K 78643K 10887 0 UVM aobj 75 8K 8K 78643K 85 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 144 0 NDP 14 0K 0K 78643K 40 0 temp 148 4000K 4072K 78643K 24865 0 kqueue 3 4K 14K 78643K 190 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 12 0 6 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 120 120 0 118 1 0 1 1 0 8 0 rtentry 112 91 0 47 3 1 2 2 0 8 0 unpcb 120 1242 0 1231 2 1 1 2 0 8 0 syncache 296 44 0 44 6 5 1 1 0 8 1 tcpqe 32 77 0 77 3 3 0 1 0 8 0 tcpcb 736 594 0 582 11 9 2 5 0 8 0 inpcb 296 1610 0 1603 7 5 2 2 0 8 1 rttmr 72 12 0 12 3 3 0 1 0 8 0 nd6 48 16 0 10 1 0 1 1 0 8 0 pkpcb 40 17 0 17 2 1 1 1 0 8 1 kcovpl 48 5 0 3 1 0 1 1 0 8 0 ppxss 1128 8 0 8 2 2 0 1 0 8 0 pffrag 232 11 0 9 2 1 1 1 0 482 0 pffrnode 88 11 0 9 2 1 1 1 0 8 0 pffrent 40 25 0 23 2 1 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 30 0 30 2 1 1 1 0 8 1 pfstitem 24 21 0 19 1 0 1 1 0 8 0 pfstkey 112 34 0 32 1 0 1 1 0 8 0 pfstate 328 28 0 26 2 1 1 2 0 8 0 pfrule 1360 61 0 46 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 328 0 136 14 2 12 12 0 8 0 art_table 32 329 0 136 2 0 2 2 0 8 0 art_node 16 90 0 50 1 0 1 1 0 8 0 sysvmsgpl 40 22 0 4 1 0 1 1 0 8 0 semapl 112 305 0 295 1 0 1 1 0 8 0 shmpl 112 82 0 10 4 1 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 6867 0 5458 89 0 89 89 0 8 0 ffsino 272 6867 0 5458 95 0 95 95 0 8 0 nchpl 144 12153 0 10562 60 0 60 60 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 30600 0 30599 2 1 1 1 0 8 0 percpumem 16 47 0 15 1 0 1 1 0 8 0 vcpupl 1984 5 0 0 1 0 1 1 0 8 0 vmpool 560 18 0 13 2 1 1 1 0 8 0 pfiaddrpl 120 10 0 10 2 1 1 1 0 8 1 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 35640 0 35639 9 8 1 8 0 8 0 plimitpl 152 242 0 234 1 0 1 1 0 8 0 sigapl 424 4753 0 4720 4 0 4 4 0 8 0 futexpl 56 32121 0 32121 2 1 1 1 0 8 1 knotepl 112 299 0 279 1 0 1 1 0 8 0 kqueuepl 168 1995 0 1993 1 0 1 1 0 8 0 pipepl 336 233 0 222 6 4 2 2 0 8 0 fdescpl 496 4736 0 4720 3 0 3 3 0 8 0 filepl 152 15319 0 15217 6 1 5 6 0 8 1 lockfpl 104 546 0 545 1 0 1 1 0 8 0 lockfspl 48 164 0 163 1 0 1 1 0 8 0 sessionpl 144 22 0 11 1 0 1 1 0 8 0 pgrppl 48 27 0 16 1 0 1 1 0 8 0 ucredpl 96 2157 0 2148 1 0 1 1 0 8 0 zombiepl 144 4720 0 4720 1 0 1 1 0 8 1 processpl 1072 4753 0 4720 3 0 3 3 0 8 0 procpl 672 9857 0 9816 6 2 4 5 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 65 0 65 6 5 1 1 0 8 1 sockpl 432 3004 0 2983 8 4 4 6 0 8 0 mcl64k 65536 19 0 0 3 1 2 3 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 10 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 13 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 265 0 0 18 1 17 17 0 8 0 mtagpl 96 244 0 0 5 0 5 5 0 8 0 mbufpl 256 770 0 0 39 1 38 38 0 8 0 bufpl 280 11186 0 4937 447 0 447 447 0 8 0 anonpl 16 335902 0 328075 55 22 33 43 0 124 0 amapchunkpl 152 19803 0 19567 36 26 10 23 0 158 0 amappl16 192 13862 0 13572 23 8 15 22 0 8 0 amappl15 184 2308 0 2305 2 1 1 1 0 8 0 amappl14 176 24 0 19 1 0 1 1 0 8 0 amappl13 168 65 0 63 1 0 1 1 0 8 0 amappl12 160 369 0 365 2 1 1 1 0 8 0 amappl11 152 70 0 53 1 0 1 1 0 8 0 amappl10 144 14 0 9 1 0 1 1 0 8 0 amappl9 136 1287 0 1287 2 2 0 1 0 8 0 amappl8 128 1397 0 1314 3 0 3 3 0 8 0 amappl7 120 1529 0 1522 1 0 1 1 0 8 0 amappl6 112 91 0 73 1 0 1 1 0 8 0 amappl5 104 5587 0 5565 1 0 1 1 0 8 0 amappl4 96 685 0 655 1 0 1 1 0 8 0 amappl3 88 219 0 212 1 0 1 1 0 8 0 amappl2 80 36945 0 36871 2 0 2 2 0 8 0 amappl1 72 138611 0 138137 25 15 10 19 0 8 0 amappl 80 10256 0 10187 2 0 2 2 0 84 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 64 84 0 10 2 0 2 2 0 8 0 uaddrrnd 24 4754 0 4733 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4754 0 4733 1 0 1 1 0 8 0 vmmpekpl 168 25665 0 25637 2 0 2 2 0 8 0 vmmpepl 168 589141 0 587575 114 39 75 79 0 357 1 vmsppl 368 4753 0 4733 2 0 2 2 0 8 0 pdppl 4096 9515 0 9471 68 22 46 46 0 8 2 pvpl 32 1605265 0 1594177 198 98 100 119 0 265 7 pmappl 232 4753 0 4733 5 3 2 2 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 361 0 44 10 0 10 10 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace m_copyback(ffff8000244d4830,1a0,0,ffff8000244d49f4,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff8000244d4830,1a0,0,ffff8000244d49f4,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044a00,ffff8000244d4ad8,fffffd807b5ac800) at pflog_mtap+0x446 sys/net/if_pflog.c:390 pflog_packet(ffff8000244d4bd8,0,ffff800000ac9fe8,0,ffffffff828b8150,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b14000,ffff8000244d4ea8) at pf_test+0xfd2 sys/net/pf.c:7228 ip6_input_if(ffff8000244d4ea8,ffff8000244d4eb4,29,0,ffff800000b14000) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b14000,fffffd807b5ac800) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d01,ffff8000244d5198,ffff8000222cc000,2) at tun_dev_write+0x204 sys/net/if_tun.c:867 spec_write(ffff8000244d4ff0) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806e2e74e8,ffff8000244d5198,11,fffffd807f7b7960) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:274 vn_write(fffffd806c8038f8,ffff8000244d5198,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff80002123c7e0,f0,ffff8000244d5198,0,ffff8000244d5280) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80002123c7e0,ffff8000244d5230,ffff8000244d5280) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff8000244d5300) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000244d5300) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa9fec489fc0, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 acpicpu_idle() at acpicpu_idle+0x2eb sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d68ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5