kernel: protection fault trap, code=0 Stopped at malloc+0x855: movq 0x8(%rbx),%r14 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> show kasan No such command ddb{0}> trace malloc(10,62,2) at malloc+0x855 sys/kern/kern_malloc.c:294 amap_alloc1(20,2,0) at amap_alloc1+0x291 sys/uvm/uvm_amap.c:353 amap_alloc(20000,2,0) at amap_alloc+0xad sys/uvm/uvm_amap.c:-1 amap_copy(fffff3806870b5e8,fffff3806d1c0c30,2,0,3258da32000,3258da32001) at amap_copy+0x6ac sys/uvm/uvm_amap.c:567 uvm_fault_check(ffff80003c3ebfa0,ffff80003c3ebfd8,ffff80003c3ec010,0) at uvm_fault_check+0x473 sys/uvm/uvm_fault.c:747 uvm_fault(fffff3806870b5e8,3258da32000,0,2) at uvm_fault+0x106 sys/uvm/uvm_fault.c:627 upageflttrap(ffff80003c3ec140,3258da32c88) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c3ec140) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 recall_trap() at recall_trap+0x8 end trace frame: 0x0, count: -9 ddb{0}> show registers rdi 0x8d73b6ffe0f4604 rsi 0x7fff00007fff rbp 0xffff80003c3ebc40 rbx 0x8d74490fe0f39fb rdx 0 rcx 0xffff800035391a10 rax 0xffffffff839c7ff0 cpu_info_full_primary+0x1ff0 r8 0x3258da32000 r9 0x3258da32001 r10 0 r11 0xaffecc2d15454a65 r12 0x7fff00007fff r13 0xffffffff83aa6b30 kmemstats+0x1880 r14 0xa30c333 __kernel_phys_end+0x670c333 r15 0x8d73b6ffe0f4604 rip 0xffffffff81dfd135 malloc+0x855 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80003c3ebb80 ss 0 malloc+0x855: movq 0x8(%rbx),%r14 ddb{0}> show proc PROC (syz-executor) tid=352415 pid=82144 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800035390a80,0xffffffff83aa4000 process=0xffff800045fe7510 user=0xffff80003c3e7000, vmspace=0xfffff3806870b5e8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 82144 462757 40426 32767 7 0x10 0 syz-executor *82144 352415 40426 32767 7 0x10 0x4000000 syz-executor 20755 183392 32024 32767 2 0x10 0 syz-executor 20755 490801 32024 32767 3 0x10 0x4000000 biowait syz-executor 84018 32055 60405 32767 3 0x10 0x80 nanoslp syz-executor 84018 49061 60405 32767 3 0x10 0x4000080 kqread syz-executor 84018 360236 60405 32767 3 0x10 0x4000080 fsleep syz-executor 84018 140153 60405 32767 3 0x10 0x4000080 fsleep syz-executor 39595 123244 33510 32767 3 0x10 0x80 nanoslp syz-executor 39595 15344 33510 32767 3 0x10 0x4000080 kqread syz-executor 39595 522798 33510 32767 3 0x10 0x4000080 fsleep syz-executor 99108 74529 98576 32767 3 0x10 0x80 nanoslp syz-executor 99108 414606 98576 32767 3 0x10 0x4000080 kqsel syz-executor 99108 94151 98576 32767 3 0x10 0x4000080 fsleep syz-executor 97606 421103 72432 32767 3 0x10 0x80 nanoslp syz-executor 97606 35149 72432 32767 3 0x10 0x4000080 ttyout syz-executor 97606 74893 72432 32767 3 0x10 0x4000080 ttyin syz-executor 43640 283798 28209 32767 3 0x10 0x80 nanoslp syz-executor 43640 106732 28209 32767 3 0x10 0x4000080 ttyin syz-executor 43640 322434 28209 32767 3 0x10 0x4000080 fsleep syz-executor 43640 111028 28209 32767 3 0x10 0x4000080 fsleep syz-executor 98576 80835 22572 32767 3 0x10 0x80 nanoslp syz-executor 60405 49147 5033 32767 3 0x10 0x80 nanoslp syz-executor 28209 389549 86596 32767 3 0x10 0x80 nanoslp syz-executor 72432 77687 90804 32767 3 0x10 0x80 nanoslp syz-executor 32024 483855 80860 32767 3 0x10 0x80 nanoslp syz-executor 33510 294374 78036 32767 3 0x10 0x80 nanoslp syz-executor 40426 337478 61258 32767 3 0x10 0x80 nanoslp syz-executor 85172 218642 48741 32767 3 0x10 0 getblk syz-executor 5033 520411 88242 0 3 0x2 0x80 wait syz-executor 22572 432546 88242 0 3 0x2 0x80 wait syz-executor 90804 476059 88242 0 3 0x2 0x80 wait syz-executor 86596 173204 88242 0 3 0x2 0x80 wait syz-executor 78036 159555 88242 0 3 0x2 0x80 wait syz-executor 80860 505905 88242 0 3 0x2 0x80 wait syz-executor 48741 465098 88242 0 3 0x2 0x80 wait syz-executor 61258 382598 88242 0 3 0x2 0x80 wait syz-executor 88242 86719 52228 0 3 0x2 0x80 kqread syz-executor 52228 400164 49551 0 3 0x100002 0x88 sigsusp ksh 49551 398332 36988 0 3 0x10 0x88 kqread sshd-session 36988 225294 8750 0 3 0x12 0x80 kqread sshd-session 35949 383063 1 0 3 0x100003 0x80 ttyin getty 8750 311408 1 0 3 0 0x88 kqread sshd 92255 202114 80949 73 3 0x1100010 0x80 kqread syslogd 80949 209606 1 0 3 0x100002 0x80 sbwait syslogd 951 217915 1 0 3 0x100000 0x80 kqread resolvd 75825 387853 21068 77 3 0x100012 0x80 kqread dhcpleased 72665 421283 21068 77 3 0x100012 0x80 kqread dhcpleased 21068 253504 1 0 3 0 0x80 kqread dhcpleased 41430 294597 0 0 3 0x14000 0x200 bored smr 37104 502508 0 0 2 0x14000 0x200 zerothread 66625 256139 0 0 3 0x14000 0x200 aiodoned aiodoned 97802 261873 0 0 3 0x14000 0x200 syncer update 26903 265055 0 0 3 0x14000 0x200 cleaner cleaner 45105 162259 0 0 3 0x14000 0x200 reaper reaper 73921 366674 0 0 3 0x14000 0x200 pgdaemon pagedaemon 53309 33610 0 0 3 0x14000 0x200 bored viomb 75337 172044 0 0 3 0x14000 0x40000200 acpi0 acpi0 12065 132533 0 0 3 0x14000 0x40000200 idle1 58939 453010 0 0 3 0x14000 0x200 bored softnet1 50658 431359 0 0 3 0x14000 0x200 bored softnet0 44451 299886 0 0 3 0x14000 0x200 bored systqmp 40275 452534 0 0 3 0x14000 0x200 bored systq 29811 244990 0 0 3 0x14000 0x200 tmoslp softclockmp 53040 169925 0 0 3 0x14000 0x40000200 tmoslp softclock 9206 145179 0 0 3 0x14000 0x40000200 idle0 1 86712 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex /syzkaller/managers/setuid/kernel/sys/kern/kern_malloc.c:96 r = 0 (0xffffffff8392e0b8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 malloc+0x2ef sys/kern/kern_malloc.c:200 #3 amap_alloc1+0x291 sys/uvm/uvm_amap.c:353 #4 amap_alloc+0xad sys/uvm/uvm_amap.c:-1 #5 amap_copy+0x6ac sys/uvm/uvm_amap.c:567 #6 uvm_fault_check+0x473 sys/uvm/uvm_fault.c:747 #7 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #8 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #9 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #10 recall_trap+0x8 Process 82144 (syz-executor) thread 0xffff800035391a10 (352415) exclusive rwlock vmmaplk r = 0 (0xfffff3806870b6e8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 exclusive mutex /syzkaller/managers/setuid/kernel/sys/kern/kern_malloc.c:96 r = 0 (0xffffffff8392e0b8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 malloc+0x2ef sys/kern/kern_malloc.c:200 #3 amap_alloc1+0x291 sys/uvm/uvm_amap.c:353 #4 amap_alloc+0xad sys/uvm/uvm_amap.c:-1 #5 amap_copy+0x6ac sys/uvm/uvm_amap.c:567 #6 uvm_fault_check+0x473 sys/uvm/uvm_fault.c:747 #7 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #8 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #9 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #10 recall_trap+0x8 Process 20755 (syz-executor) thread 0xffff800035393a18 (490801) exclusive rrwlock inode r = 0 (0xfffff38069037b28) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:150 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_makeinode+0xcd sys/ufs/ufs/ufs_vnops.c:1759 #8 ufs_create+0x4e sys/ufs/ufs/ufs_vnops.c:147 #9 VOP_CREATE+0xfe sys/kern/vfs_vops.c:103 #10 vn_open+0x50d sys/kern/vfs_vnops.c:118 #11 doopenat+0x35b sys/kern/vfs_syscalls.c:1163 #12 sys_open+0x59 sys/kern/vfs_syscalls.c:1065 #13 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffff38069037688) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vfs_lookup+0x12b sys/kern/vfs_lookup.c:431 #6 namei+0x7c5 sys/kern/vfs_lookup.c:250 #7 vn_open+0x22e sys/kern/vfs_vnops.c:109 #8 doopenat+0x35b sys/kern/vfs_syscalls.c:1163 #9 sys_open+0x59 sys/kern/vfs_syscalls.c:1065 #10 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #11 Xsyscall+0x128 Process 85172 (syz-executor) thread 0xffff800045feefa8 (218642) exclusive rrwlock inode r = 0 (0xfffff38069037560) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vget+0x2a2 sys/kern/vfs_subr.c:692 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x963 sys/kern/vfs_lookup.c:580 #11 namei+0x7c5 sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1807 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffff3806d7dbd68) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vfs_lookup+0x12b sys/kern/vfs_lookup.c:431 #6 namei+0x7c5 sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1807 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11055 12019K 12034K 166960K 12146 0 pcb 17 12K 12K 166960K 17 0 rtable 239 6K 7K 166960K 358 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 5 0 counters 70 37K 37K 166960K 70 0 ioctlops 0 0K 4K 166960K 35 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1287 81K 81K 166960K 1355 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 11 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 25 93K 121K 166960K 202 0 sigio 0 0K 0K 166960K 2 0 proc 58 99K 131K 166960K 509 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 0 0K 0K 166960K 22 0 in_multi 99 7K 7K 166960K 103 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 366 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 265 176K 197K 166960K 3375 0 UVM aobj 5 2K 2K 166960K 5 0 pinsyscall 46 92K 110K 166960K 1302 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 6 0 NDP 23 1K 2K 166960K 27 0 temp 35 9114K 9134K 166960K 3845 0 kqueue 13 20K 25K 166960K 39 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 28 0 0 1 0 1 1 0 8 0 rtpcb 120 43 0 40 1 0 1 1 0 8 0 rtentry 176 112 0 1 6 0 6 6 0 8 0 unpcb 144 211 0 194 3 0 3 3 0 8 2 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 106 0 99 5 0 5 5 0 8 3 arp 136 18 0 0 1 0 1 1 0 8 0 inpcb 328 186 0 175 5 0 5 5 0 8 3 nd6 152 25 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 455 0 0 29 0 29 29 0 8 0 art_table 40 456 0 0 5 0 5 5 0 8 0 art_node 32 112 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semapl 72 8 0 1 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 1636 0 171 92 0 92 92 0 8 0 ffsino 296 1636 0 171 113 0 113 113 0 8 0 nchpl 144 1920 0 231 63 0 63 63 0 8 0 vnodes 216 1717 0 0 96 0 96 96 0 8 0 namei 1024 5733 0 5732 2 0 2 2 0 8 1 percpumem 16 51 0 0 1 0 1 1 0 8 0 kstatmem 264 25 0 0 2 0 2 2 0 8 0 scxspl 216 6655 0 6654 4 1 3 3 1 8 2 plimitpl 152 179 0 150 2 0 2 2 0 8 0 sigapl 424 500 0 447 7 0 7 7 0 8 0 knotepl 120 119 0 0 4 0 4 4 0 8 0 kqueuepl 224 41 0 27 1 0 1 1 0 8 0 pipepl 344 126 0 97 3 0 3 3 0 8 0 fdescpl 528 484 0 447 3 0 3 3 0 8 0 filepl 160 1937 0 1706 13 0 13 13 0 8 1 lockfpl 104 28 0 26 1 0 1 1 0 8 0 lockfspl 48 8 0 6 1 0 1 1 0 8 0 sessionpl 144 27 0 11 1 0 1 1 0 8 0 pgrppl 48 36 0 12 1 0 1 1 0 8 0 ucredpl 104 212 0 193 1 0 1 1 0 8 0 zombiepl 144 447 0 447 1 0 1 1 0 8 1 processpl 1232 500 0 447 5 0 5 5 0 8 0 procpl 664 597 0 530 6 0 6 6 0 8 0 sockpl 752 442 0 410 9 0 9 9 0 8 5 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 133 0 0 17 0 17 17 0 8 0 mcl2k 2048 17 0 0 3 0 3 3 0 8 0 mextrefs 64 17 0 0 1 0 1 1 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 175 0 0 11 0 11 11 0 8 0 bufpl 272 2408 0 102 154 0 154 154 0 8 0 anonpl 32 3574 0 0 29 0 29 29 0 247 0 amapchunkpl 152 9774 0 9184 32 0 32 32 0 158 8 amappl16 200 1408 0 1385 5 0 5 5 0 8 3 amappl15 192 3 0 3 1 0 1 1 0 8 1 amappl14 184 447 0 446 1 0 1 1 0 8 0 amappl13 176 151 0 141 1 0 1 1 0 8 0 amappl12 168 751 0 714 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 0 1 1 0 8 1 amappl10 152 59 0 49 1 0 1 1 0 8 0 amappl9 144 290 0 290 1 0 1 1 0 8 1 amappl8 136 96 0 95 1 0 1 1 0 8 0 amappl7 128 144 0 133 1 0 1 1 0 8 0 amappl6 120 176 0 175 1 0 1 1 0 8 0 amappl5 112 111 0 103 1 0 1 1 0 8 0 amappl4 104 262 0 247 1 0 1 1 0 8 0 amappl3 96 1825 0 1687 5 1 4 4 0 8 0 amappl2 88 517 0 465 2 0 2 2 0 8 0 amappl1 80 10495 0 9936 14 0 14 14 0 8 1 amappl 88 2675 0 2475 5 0 5 5 0 92 0 uvmvnodes 80 98 0 0 2 0 2 2 0 8 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 484 0 447 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 484 0 447 1 0 1 1 0 8 0 vmmpekpl 168 5739 0 5703 2 0 2 2 0 8 0 vmmpepl 168 39773 0 37712 93 0 93 93 0 357 0 vmsppl 488 483 0 447 7 1 6 6 0 8 0 rwobjpl 80 14408 0 13459 22 0 22 22 0 8 1 pdppl 4096 975 0 894 109 14 95 95 0 8 14 pvpl 32 11044 0 0 90 0 90 90 0 265 0 pmappl 256 483 0 447 4 1 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 436 0 17 12 0 12 12 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace malloc(10,62,2) at malloc+0x855 sys/kern/kern_malloc.c:294 amap_alloc1(20,2,0) at amap_alloc1+0x291 sys/uvm/uvm_amap.c:353 amap_alloc(20000,2,0) at amap_alloc+0xad sys/uvm/uvm_amap.c:-1 amap_copy(fffff3806870b5e8,fffff3806d1c0c30,2,0,3258da32000,3258da32001) at amap_copy+0x6ac sys/uvm/uvm_amap.c:567 uvm_fault_check(ffff80003c3ebfa0,ffff80003c3ebfd8,ffff80003c3ec010,0) at uvm_fault_check+0x473 sys/uvm/uvm_fault.c:747 uvm_fault(fffff3806870b5e8,3258da32000,0,2) at uvm_fault+0x106 sys/uvm/uvm_fault.c:627 upageflttrap(ffff80003c3ec140,3258da32c88) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c3ec140) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 recall_trap() at recall_trap+0x8 end trace frame: 0x0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff80002999dff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 end of kernel end trace frame: 0x7398a63d5d10, count: -3