panic: acquiring blockablep a ni c : k er ne l d ia gn o s t i c as s e r stleieopn l oc k w i t h s pi n l oc"ko b j = = N UL L | | U VM _ O BJ _ IS _ DU MM Y ( ob j) | | rw _ w r i te _ h el d ( o b j - > v m ob j l o ck )" f a i l e d o:r f i l e " / s yz k a l le r / m an a ge r s / mu lt ic o r e /k e r n e l/ s y s / uv m / u v m _ p a g ecr.ic"ti, clailn se e6c97t ioStopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 24338 51912 0 0 0 0K syz-executor.2 53190 47366 0 0 0x4000000 1 syz-executor.3 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8258f849) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff826021d1,ffffffff82579a03,2b9,ffffffff82628f10) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_pagealloc_pg(fffffd800802c300,ffffffff829c6e00,2e36e000,0) at uvm_pagealloc_pg+0x3b4 sys/uvm/uvm_page.c:705 uvm_km_kmemalloc_pla(ffffffff829d5f78,ffffffff829c6e00,6000,0,8,0,bc2e3d1dafe37709,3a,701,0) at uvm_km_kmemalloc_pla+0x325 x86_atomic_clearbits_u32 machine/atomic.h:298 [inline] uvm_km_kmemalloc_pla(ffffffff829d5f78,ffffffff829c6e00,6000,0,8,0,bc2e3d1dafe37709,3a,701,0) at uvm_km_kmemalloc_pla+0x325 sys/uvm/uvm_km.c:396 uvm_uarea_alloc() at uvm_uarea_alloc+0x4a sys/uvm/uvm_glue.c:275 thread_fork(ffff800026092fc8,1deca758910,1dfb11d6200,1dfb11d6230,ffff80002e357880) at thread_fork+0xd7 sys/kern/kern_fork.c:532 sys___tfork(ffff800026092fc8,ffff80002e357820,ffff80002e357880) at sys___tfork+0x13b sys/kern/kern_fork.c:140 syscall(ffff80002e3578f0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e3578f0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbea10, count: 5 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic cpu0: kernel diagnostic assertion "obj == NULL || UVM_OBJ_IS_DUMMY(obj) || rw_write_held(obj->vmobjlock)" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 697 *cpu1: acquiring blockable sleep lock with spinlock or critical section held (kernel_lock) &kernel_lock ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8258f849) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff826021d1,ffffffff82579a03,2b9,ffffffff82628f10) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_pagealloc_pg(fffffd800802c300,ffffffff829c6e00,2e36e000,0) at uvm_pagealloc_pg+0x3b4 sys/uvm/uvm_page.c:705 uvm_km_kmemalloc_pla(ffffffff829d5f78,ffffffff829c6e00,6000,0,8,0,bc2e3d1dafe37709,3a,701,0) at uvm_km_kmemalloc_pla+0x325 x86_atomic_clearbits_u32 machine/atomic.h:298 [inline] uvm_km_kmemalloc_pla(ffffffff829d5f78,ffffffff829c6e00,6000,0,8,0,bc2e3d1dafe37709,3a,701,0) at uvm_km_kmemalloc_pla+0x325 sys/uvm/uvm_km.c:396 uvm_uarea_alloc() at uvm_uarea_alloc+0x4a sys/uvm/uvm_glue.c:275 thread_fork(ffff800026092fc8,1deca758910,1dfb11d6200,1dfb11d6230,ffff80002e357880) at thread_fork+0xd7 sys/kern/kern_fork.c:532 sys___tfork(ffff800026092fc8,ffff80002e357820,ffff80002e357880) at sys___tfork+0x13b sys/kern/kern_fork.c:140 syscall(ffff80002e3578f0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e3578f0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbea10, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002e3574b0 rbx 0xffffffff8294ebff cpu_info_full_primary+0x2bff rdx 0 rcx 0 rax 0xffff800026092fc8 r8 0 r9 0x8080808080808080 r10 0x7c1aa5634bbe6504 r11 0x3e56d46ecd63c12 r12 0xffffffff8294ea00 cpu_info_full_primary+0x2a00 r13 0 r14 0xffff800020ce9a00 r15 0x1 rip 0xffffffff81f18858 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002e3574a0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.2) pid=24338 stat=onproc flags process=0 proc=0 pri=78, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800026093508,0xffff800026093278 process=0xffff80002af24018 user=0xffff80002e352000, vmspace=0xfffffd8065adeb98 estcpu=36, cpticks=4, pctcpu=0.0 user=0, sys=4, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 74305 66752 81503 0 2 0 syz-executor.6 41252 304379 23341 0 3 0x80 fsleep syz-executor.0 41252 365074 23341 0 2 0x4000000 syz-executor.0 69403 38997 37323 0 3 0x80 fsleep syz-executor.1 69403 306359 37323 0 2 0x4000000 syz-executor.1 *51912 24338 53502 0 7 0 syz-executor.2 5988 329487 23380 0 2 0 syz-executor.7 47366 225508 45439 0 2 0 syz-executor.3 47366 53190 45439 0 7 0x4000000 syz-executor.3 37323 5441 47989 0 2 0x482 syz-executor.1 56022 95829 0 0 3 0x14200 bored sosplice 23380 411147 47989 0 2 0x2 syz-executor.7 81503 475690 47989 0 2 0x482 syz-executor.6 7855 429612 47989 0 2 0x482 syz-executor.5 45439 446909 47989 0 2 0x482 syz-executor.3 14330 325561 47989 0 2 0x2 syz-executor.4 53502 376146 47989 0 2 0x482 syz-executor.2 23341 95262 47989 0 2 0x482 syz-executor.0 47989 486957 30620 0 3 0x82 thrsleep syz-fuzzer 47989 408391 30620 0 2 0x4000482 syz-fuzzer 47989 458305 30620 0 3 0x4000082 kqread syz-fuzzer 47989 33501 30620 0 3 0x4000082 thrsleep syz-fuzzer 47989 266731 30620 0 3 0x4000082 thrsleep syz-fuzzer 47989 140880 30620 0 3 0x4000082 thrsleep syz-fuzzer 47989 184396 30620 0 3 0x4000082 thrsleep syz-fuzzer 47989 392257 30620 0 3 0x4000082 thrsleep syz-fuzzer 47989 424604 30620 0 3 0x4000082 thrsleep syz-fuzzer 30620 9645 53496 0 3 0x10008a sigsusp ksh 53496 56645 53990 0 3 0x9a kqread sshd 44205 372701 1 0 3 0x100083 ttyopn getty 53990 3111 1 0 3 0x88 kqread sshd 47817 114755 21663 74 3 0x1100092 bpf pflogd 21663 236492 1 0 3 0x80 netio pflogd 68393 62554 32594 73 3 0x1100090 kqread syslogd 32594 446357 1 0 3 0x100082 netio syslogd 41561 485551 1 0 3 0x100080 kqread resolvd 83775 190182 59407 77 3 0x100092 kqread dhcpleased 71923 33151 59407 77 3 0x100092 kqread dhcpleased 59407 29176 1 0 3 0x80 kqread dhcpleased 94554 309918 0 0 2 0x14200 smr 38924 434472 0 0 2 0x14200 zerothread 54543 56127 0 0 3 0x14200 aiodoned aiodoned 6043 415901 0 0 3 0x14200 syncer update 91313 209032 0 0 3 0x14200 cleaner cleaner 18400 102750 0 0 3 0x14200 reaper reaper 94422 17690 0 0 3 0x14200 pgdaemon pagedaemon 86825 435485 0 0 3 0x14200 bored viomb 92746 59999 0 0 3 0x40014200 acpi0 acpi0 15051 334074 0 0 3 0x40014200 idle1 8143 226384 0 0 3 0x14200 bored softnet 88191 497341 0 0 3 0x14200 bored systqmp 43391 206727 0 0 3 0x14200 bored systq 19493 273790 0 0 3 0x40014200 bored softclock 52283 7521 0 0 3 0x40014200 idle0 1 457188 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 1: exclusive mutex &table->inpt_mtx r = 0 (0xffffffff82a88990) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 udp_input+0x7b0 #4 ip_deliver+0x322 sys/netinet/ip_input.c:657 #5 ip_ours+0x3ba sys/netinet/ip_input.c:616 #6 ip_input_if+0x2a1 #7 ipv4_input+0x48 sys/netinet/ip_input.c:242 #8 if_input_local+0x10e sys/net/if.c:774 #9 ip_output+0xb05 ip_mloopback sys/netinet/ip_output.c:1791 [inline] #9 ip_output+0xb05 sys/netinet/ip_output.c:332 #10 udp_output+0x58d sys/netinet/udp_usrreq.c:1011 #11 sosend+0x632 sys/kern/uipc_socket.c:582 #12 dofilewritev+0x19c sys/kern/sys_generic.c:381 #13 sys_write+0x83 sys/kern/sys_generic.c:301 #14 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #14 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #15 Xsyscall+0x128 Process 41252 (syz-executor.0) thread 0xffff80002119fce0 (365074) exclusive rrwlock inode r = 0 (0xfffffd806552ba28) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807077ec50) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 Process 69403 (syz-executor.1) thread 0xffff800026093268 (38997) exclusive rwlock amaplk r = 0 (0xfffffd807bebeb78) #0 witness_lock+0x44d #1 uvm_fault_check+0x3ca sys/uvm/uvm_fault.c:774 #2 uvm_fault+0x102 sys/uvm/uvm_fault.c:602 #3 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #4 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd8065ade8d0) #0 witness_lock+0x44d #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1758 #2 uvm_fault_check+0x3a sys/uvm/uvm_fault.c:674 #3 uvm_fault+0x102 sys/uvm/uvm_fault.c:602 #4 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #5 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403 #6 recall_trap+0x8 Process 47366 (syz-executor.3) thread 0xffff8000260922a8 (53190) exclusive rwlock netlock r = 0 (0xffffffff828f7720) #0 witness_lock+0x44d #1 solock+0x86 sys/kern/uipc_socket2.c:295 #2 sosend+0x517 sys/kern/uipc_socket.c:570 #3 dofilewritev+0x19c sys/kern/sys_generic.c:381 #4 sys_write+0x83 sys/kern/sys_generic.c:301 #5 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #6 Xsyscall+0x128 Process 14330 (syz-executor.4) thread 0xffff80002119e000 (325561) exclusive rrwlock inode r = 0 (0xfffffd806552be68) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8066bfb810) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10187 6600K 6860K 78643K 12852 0 pcb 13 8K 8K 78643K 96 0 rtable 203 7K 8K 78643K 486 0 ifaddr 75 16K 18K 78643K 171 0 sysctl 2 0K 0K 78643K 2 0 counters 52 35K 36K 78643K 82 0 ioctlops 0 0K 4K 78643K 1591 0 iov 0 0K 16K 78643K 45 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1271 79K 80K 78643K 1779 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 20 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 38 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 16 57K 85K 78643K 1720 0 sigio 0 0K 0K 78643K 9 0 proc 71 87K 124K 78643K 610 0 subproc 104 6K 6K 78643K 117 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 64 0 in_multi 77 5K 7K 78643K 171 0 ether_multi 1 0K 0K 78643K 13 0 mrt 0 0K 0K 78643K 31 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 735 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 7 26K 26K 78643K 7 0 UVM amap 330 149K 153K 78643K 22012 0 UVM aobj 28 2K 3K 78643K 34 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 90 0 NDP 10 0K 2K 78643K 44 0 temp 128 4733K 4831K 78643K 8756 0 kqueue 12 18K 22K 78643K 83 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 76 0 73 1 0 1 1 0 8 0 rtentry 112 140 0 51 4 1 3 4 0 8 0 unpcb 136 304 0 289 2 1 1 2 0 8 0 syncache 296 15 0 15 5 5 0 1 0 8 0 tcpqe 32 7 0 7 2 2 0 1 0 8 0 tcpcb 736 221 0 216 3 2 1 3 0 8 0 arp 120 21 0 7 1 0 1 1 0 8 0 inpcb 312 584 0 575 2 1 1 2 0 8 0 rttmr 72 13 0 13 2 2 0 1 0 8 0 nd6 48 28 0 10 1 0 1 1 0 8 0 pkpcb 40 3 0 3 2 2 0 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1248 6 0 6 3 2 1 1 0 8 1 pfstscr 40 5 0 5 2 2 0 1 0 8 0 pffrag 232 3 0 1 1 0 1 1 0 482 0 pffrnode 88 3 0 1 1 0 1 1 0 8 0 pffrent 40 3 0 1 1 0 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 8 0 5 1 0 1 1 0 8 0 pfqueue 264 1 0 1 1 1 0 1 0 8 0 pfstitem 24 24 0 22 1 0 1 1 0 8 0 pfstkey 112 30 0 28 1 0 1 1 0 8 0 pfstate 320 27 0 25 3 2 1 3 0 8 0 pfrule 1360 39 0 29 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 516 0 149 30 4 26 29 0 8 0 art_table 32 517 0 149 4 0 4 4 0 8 0 art_node 16 139 0 59 1 0 1 1 0 8 0 sysvmsgpl 40 34 0 14 1 0 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 36 0 26 1 0 1 1 0 8 0 shmpl 112 31 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3501 0 2067 91 0 91 91 0 8 0 ffsino 272 3501 0 2067 97 0 97 97 0 8 0 nchpl 144 5588 0 3959 63 0 63 63 0 8 0 uvmvnodes 80 3983 0 0 82 0 82 82 0 8 0 vnodes 224 3983 0 0 235 0 235 235 0 8 0 namei 1024 15539 0 15537 3 2 1 2 0 8 0 percpumem 16 53 0 15 1 0 1 1 0 8 0 vcpupl 2048 4 0 0 1 0 1 1 0 8 0 vmpool 560 4 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 1 2 1 1 1 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 17650 0 17650 13 12 1 8 0 8 1 plimitpl 152 96 0 81 1 0 1 1 0 8 0 sigapl 424 2033 0 1988 6 0 6 6 0 8 0 futexpl 64 8828 0 8826 1 0 1 1 0 8 0 knotepl 120 260 0 0 7 0 7 7 0 8 0 kqueuepl 216 133 0 125 1 0 1 1 0 8 0 pipepl 336 174 0 146 3 0 3 3 0 8 0 fdescpl 496 2018 0 1989 5 0 5 5 0 8 0 filepl 152 5741 0 5501 11 1 10 11 0 8 0 lockfpl 104 248 0 246 1 0 1 1 0 8 0 lockfspl 48 110 0 108 1 0 1 1 0 8 0 sessionpl 144 25 0 8 1 0 1 1 0 8 0 pgrppl 48 28 0 11 1 0 1 1 0 8 0 ucredpl 96 696 0 683 1 0 1 1 0 8 0 zombiepl 144 1989 0 1988 1 0 1 1 0 8 0 processpl 1064 2033 0 1988 4 0 4 4 0 8 0 procpl 672 3789 0 3733 6 0 6 6 0 8 1 srpgc 96 4 0 4 2 2 0 1 0 8 0 sosppl 168 6 0 6 2 2 0 1 0 8 0 sockpl 480 970 0 943 7 3 4 7 0 8 0 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 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 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 156 0 0 17 0 17 17 0 8 0 mtagpl 96 176 0 0 5 0 5 5 0 8 0 mbufpl 256 551 0 0 33 1 32 32 0 8 0 bufpl 288 6246 0 138 437 0 437 437 0 8 0 anonpl 24 512458 0 496349 151 33 118 125 0 186 9 amapchunkpl 152 51457 0 50661 39 4 35 37 0 158 0 amappl16 200 6262 0 5828 64 33 31 36 0 8 7 amappl15 192 242 0 236 1 0 1 1 0 8 0 amappl14 184 214 0 208 1 0 1 1 0 8 0 amappl13 176 509 0 504 1 0 1 1 0 8 0 amappl12 168 99 0 95 2 1 1 1 0 8 0 amappl11 160 54 0 39 1 0 1 1 0 8 0 amappl10 152 244 0 235 1 0 1 1 0 8 0 amappl9 144 866 0 860 1 0 1 1 0 8 0 amappl8 136 832 0 770 3 0 3 3 0 8 0 amappl7 128 325 0 312 1 0 1 1 0 8 0 amappl6 120 593 0 570 2 1 1 2 0 8 0 amappl5 112 1918 0 1898 1 0 1 1 0 8 0 amappl4 104 892 0 866 2 1 1 2 0 8 0 amappl3 96 268 0 255 1 0 1 1 0 8 0 amappl2 88 1078 0 1031 3 1 2 3 0 8 0 amappl1 80 36460 0 35913 19 5 14 19 0 8 0 amappl 88 21487 0 21247 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 33 0 6 1 0 1 1 0 8 0 uaddrrnd 24 2022 0 1989 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2022 0 1989 1 0 1 1 0 8 0 vmmpekpl 168 14786 0 14725 3 0 3 3 0 8 0 vmmpepl 168 181248 0 178891 135 23 112 124 0 357 4 vmsppl 368 2021 0 1989 4 0 4 4 0 8 0 rwobjpl 56 46248 0 40840 80 2 78 79 0 8 1 pdppl 4096 4051 0 3982 141 68 73 81 0 8 4 pvpl 32 1040670 0 1020479 260 66 194 251 0 265 15 pmappl 248 2021 0 1989 3 0 3 3 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 875 0 81 23 0 23 23 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8258f849) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff826021d1,ffffffff82579a03,2b9,ffffffff82628f10) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_pagealloc_pg(fffffd800802c300,ffffffff829c6e00,2e36e000,0) at uvm_pagealloc_pg+0x3b4 sys/uvm/uvm_page.c:705 uvm_km_kmemalloc_pla(ffffffff829d5f78,ffffffff829c6e00,6000,0,8,0,bc2e3d1dafe37709,3a,701,0) at uvm_km_kmemalloc_pla+0x325 x86_atomic_clearbits_u32 machine/atomic.h:298 [inline] uvm_km_kmemalloc_pla(ffffffff829d5f78,ffffffff829c6e00,6000,0,8,0,bc2e3d1dafe37709,3a,701,0) at uvm_km_kmemalloc_pla+0x325 sys/uvm/uvm_km.c:396 uvm_uarea_alloc() at uvm_uarea_alloc+0x4a sys/uvm/uvm_glue.c:275 thread_fork(ffff800026092fc8,1deca758910,1dfb11d6200,1dfb11d6230,ffff80002e357880) at thread_fork+0xd7 sys/kern/kern_fork.c:532 sys___tfork(ffff800026092fc8,ffff80002e357820,ffff80002e357880) at sys___tfork+0x13b sys/kern/kern_fork.c:140 syscall(ffff80002e3578f0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e3578f0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbea10, count: -10 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 x2apic_readreg(390) at x2apic_readreg+0x2a sys/arch/amd64/amd64/lapic.c:141 lapic_delay(1) at lapic_delay+0xb1 lapic_gettick sys/arch/amd64/amd64/lapic.c:400 [inline] lapic_delay(1) at lapic_delay+0xb1 sys/arch/amd64/amd64/lapic.c:623 comcnputc(800,6f) at comcnputc+0x1d7 sys/dev/ic/com.c:1269 cnputc(6f) at cnputc+0x4b sys/dev/cons.c:239 db_putchar(6f) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x20ec sys/kern/subr_prf.c:1068 db_printf(ffffffff82608896) at db_printf+0x85 sys/kern/subr_prf.c:502 panic(ffffffff825a56b6) at panic+0xd7 sys/kern/subr_prf.c:220 witness_checkorder(ffffffff82b47030,9,0) at witness_checkorder+0x116d sys/kern/subr_witness.c:833 __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 selwakeup(fffffd806e2cbe50) at selwakeup+0x16 klist_empty sys/sys/event.h:361 [inline] selwakeup(fffffd806e2cbe50) at selwakeup+0x16 sys/kern/sys_generic.c:885 end trace frame: 0xffff80002c94ef50, count: 0 ddb{1}> trace x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 x2apic_readreg(390) at x2apic_readreg+0x2a sys/arch/amd64/amd64/lapic.c:141 lapic_delay(1) at lapic_delay+0xb1 lapic_gettick sys/arch/amd64/amd64/lapic.c:400 [inline] lapic_delay(1) at lapic_delay+0xb1 sys/arch/amd64/amd64/lapic.c:623 comcnputc(800,6f) at comcnputc+0x1d7 sys/dev/ic/com.c:1269 cnputc(6f) at cnputc+0x4b sys/dev/cons.c:239 db_putchar(6f) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x20ec sys/kern/subr_prf.c:1068 db_printf(ffffffff82608896) at db_printf+0x85 sys/kern/subr_prf.c:502 panic(ffffffff825a56b6) at panic+0xd7 sys/kern/subr_prf.c:220 witness_checkorder(ffffffff82b47030,9,0) at witness_checkorder+0x116d sys/kern/subr_witness.c:833 __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 selwakeup(fffffd806e2cbe50) at selwakeup+0x16 klist_empty sys/sys/event.h:361 [inline] selwakeup(fffffd806e2cbe50) at selwakeup+0x16 sys/kern/sys_generic.c:885 sorwakeup(fffffd806e2cbd38) at sorwakeup+0xc9 sys/kern/uipc_socket.c:1699 udp_sbappend(fffffd806f688c30,fffffd807c567100,fffffd80655298b0,0,14,fffffd80655298c4,1a0260dbb3b368f5,0) at udp_sbappend+0x3b1 sys/netinet/udp_usrreq.c:638 udp_input(ffff80002c94f2f8,ffff80002c94f304,11,2) at udp_input+0xbcb sys/netinet/udp_usrreq.c:427 ip_deliver(ffff80002c94f2f8,ffff80002c94f304,11,2) at ip_deliver+0x322 sys/netinet/ip_input.c:657 ip_ours(ffff80002c94f2f8,ffff80002c94f304,ffff800027acd000,0) at ip_ours+0x3ba sys/netinet/ip_input.c:616 ip_input_if(ffff80002c94f2f8,ffff80002c94f304,4,0,ffff800000689000) at ip_input_if+0x2a1 ipv4_input(ffff800000689000,fffffd8065529800) at ipv4_input+0x48 sys/netinet/ip_input.c:242 if_input_local(ffff800000689000,fffffd8065529800,2) at if_input_local+0x10e sys/net/if.c:774 ip_output(fffffd806c488200,0,fffffd806f688900,0,0,fffffd806f688888,2c890bf3ed31236) at ip_output+0xb05 ip_mloopback sys/netinet/ip_output.c:1791 [inline] ip_output(fffffd806c488200,0,fffffd806f688900,0,0,fffffd806f688888,2c890bf3ed31236) at ip_output+0xb05 sys/netinet/ip_output.c:332 udp_output(fffffd806f688888,fffffd806c488200,0,0) at udp_output+0x58d sys/netinet/udp_usrreq.c:1011 sosend(fffffd806e2cb1f8,0,ffff80002c94f708,0,0,0) at sosend+0x632 sys/kern/uipc_socket.c:582 dofilewritev(ffff8000260922a8,4,ffff80002c94f708,0,ffff80002c94f800) at dofilewritev+0x19c sys/kern/sys_generic.c:381 sys_write(ffff8000260922a8,ffff80002c94f7a8,ffff80002c94f800) at sys_write+0x83 sys/kern/sys_generic.c:301 syscall(ffff80002c94f870) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002c94f870) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x41c4d4f1550, count: -29