Warning: Permanently added '10.128.15.221' (ED25519) to the list of known hosts. 2022/03/12 05:08:07 fuzzer started 2022/03/12 05:08:12 dialing manager at 10.128.15.235:8693 2022/03/12 05:08:12 syscalls: 387 2022/03/12 05:08:12 code coverage: enabled 2022/03/12 05:08:12 comparison tracing: enabled 2022/03/12 05:08:12 extra coverage: enabled 2022/03/12 05:08:12 delay kcov mmap: enabled 2022/03/12 05:08:12 setuid sandbox: enabled 2022/03/12 05:08:12 namespace sandbox: support is not implemented in syzkaller 2022/03/12 05:08:12 Android sandbox: support is not implemented in syzkaller 2022/03/12 05:08:12 fault injection: support is not implemented in syzkaller 2022/03/12 05:08:12 leak checking: support is not implemented in syzkaller 2022/03/12 05:08:12 net packet injection: enabled 2022/03/12 05:08:12 net device setup: support is not implemented in syzkaller 2022/03/12 05:08:12 concurrency sanitizer: support is not implemented in syzkaller 2022/03/12 05:08:12 devlink PCI setup: support is not implemented in syzkaller 2022/03/12 05:08:12 USB emulation: support is not implemented in syzkaller 2022/03/12 05:08:12 hci packet injection: support is not implemented in syzkaller 2022/03/12 05:08:12 wifi device emulation: support is not implemented in syzkaller 2022/03/12 05:08:12 802.15.4 emulation: support is not implemented in syzkaller 2022/03/12 05:08:12 fetching corpus: 0, signal 0/2000 (executing program) 2022/03/12 05:08:12 fetching corpus: 50, signal 5308/8636 (executing program) 2022/03/12 05:08:12 fetching corpus: 100, signal 6935/11622 (executing program) 2022/03/12 05:08:12 fetching corpus: 150, signal 8124/14093 (executing program) 2022/03/12 05:08:12 fetching corpus: 200, signal 9760/16690 (executing program) 2022/03/12 05:08:12 fetching corpus: 250, signal 10878/18721 (executing program) 2022/03/12 05:08:12 fetching corpus: 300, signal 11653/20471 (executing program) 2022/03/12 05:08:12 fetching corpus: 350, signal 12442/22091 (executing program) 2022/03/12 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fetching corpus: 4650, signal 30356/31049 (executing program) 2022/03/12 05:08:14 fetching corpus: 4700, signal 30475/31049 (executing program) 2022/03/12 05:08:14 fetching corpus: 4750, signal 30558/31049 (executing program) 2022/03/12 05:08:14 fetching corpus: 4772, signal 30599/31049 (executing program) 2022/03/12 05:08:14 fetching corpus: 4772, signal 30599/31049 (executing program) 2022/03/12 05:08:14 starting 8 fuzzer processes 05:08:14 executing program 0: r0 = openat$vmm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$VMM_IOC_WRITEREGS(r0, 0x82485608, &(0x7f00000002c0)) 05:08:15 executing program 1: ioctl$BIOCSETWF(0xffffffffffffffff, 0x80104277, &(0x7f00000002c0)={0x3, &(0x7f0000000040)=[{}, {0x3}, {0x6, 0x0, 0x0, 0xfc}]}) sysctl$kern(&(0x7f0000000040)={0x1, 0x49}, 0x6, &(0x7f0000000080)="f7a451e4a37b0df30b1d32cb", &(0x7f0000000180)=0x68a, 0x0, 0x0) ioctl$BIOCSETIF(0xffffffffffffffff, 0x8020426c, &(0x7f0000000300)={'tap', 0x0}) ioctl$TIOCFLUSH(0xffffffffffffffff, 0x8020697a, &(0x7f00000000c0)) ioctl$BIOCSETWF(0xffffffffffffffff, 0x80104277, 0x0) write(0xffffffffffffffff, 0x0, 0x0) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x5) r0 = socket(0x2, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$TIOCFLUSH(r1, 0x8020699d, &(0x7f0000000300)) accept(0xffffffffffffffff, 0x0, 0x0) openat(0xffffffffffffffff, &(0x7f0000001580)='./file0\x00', 0x10, 0x0) 05:08:15 executing program 2: syz_emit_ethernet(0x36, &(0x7f0000000100)={@broadcast, @random, [], {@ipv4={0x800, {{0x5, 0x4, 0x0, 0x0, 0x28, 0x0, 0x0, 0x0, 0x1, 0x0, @local={0xac, 0x14, 0x0}}, @icmp=@timestamp}}}}) 05:08:15 executing program 4: bind(0xffffffffffffffff, &(0x7f00000000c0)=ANY=[@ANYBLOB="e10b"], 0x1) connect$unix(0xffffffffffffffff, &(0x7f0000000000)=ANY=[@ANYBLOB="62020207e0000001"], 0x1) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x5) r0 = socket(0x2, 0x3, 0x0) connect$unix(r0, &(0x7f0000000000)=ANY=[], 0x10) setsockopt$inet_opts(r0, 0x0, 0x1, &(0x7f00000000c0)="071400000f370025ff149b33ff0f000000000000", 0x14) write(r0, 0x0, 0x0) 05:08:15 executing program 5: r0 = open(&(0x7f0000000000)='./file0\x00', 0x60e, 0x0) pwrite(r0, &(0x7f0000000100)="c8a84e", 0xff96, 0x0) mmap(&(0x7f0000000000/0x13000)=nil, 0x13000, 0x5, 0x10, r0, 0x0) sendmsg$unix(0xffffffffffffffff, &(0x7f0000004500)={0x0, 0x0, 0x0}, 0x0) r1 = socket(0x400000000018, 0x3, 0x0) setsockopt(r1, 0x0, 0x0, &(0x7f0000000040), 0x4) 05:08:15 executing program 3: preadv(0xffffffffffffffff, &(0x7f0000000440)=[{&(0x7f0000000080)=""/120, 0x78}, {&(0x7f0000000640)=""/4096, 0x1000}], 0x2, 0x0) r0 = open(&(0x7f0000000040)='./file0\x00', 0x615, 0x0) pwritev(r0, &(0x7f00000003c0), 0x273, 0x0) r1 = open(&(0x7f0000000040)='./file0\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x1, 0x10, r1, 0x0) readv(0xffffffffffffffff, &(0x7f0000000000), 0x100000000000021b) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x4) munmap(&(0x7f0000000000/0x4000)=nil, 0x4000) 05:08:15 executing program 6: r0 = openat$bpf(0xffffffffffffff9c, &(0x7f0000000300), 0x1fb57824223d9229, 0x0) ioctl$BIOCSETIF(r0, 0x8020426c, &(0x7f0000000180)={'tap', 0x0}) ioctl$BIOCSETWF(r0, 0x80104277, &(0x7f0000000100)={0x3, &(0x7f00000000c0)=[{0x74}, {0x28}, {0x6, 0x0, 0x0, 0xfb}]}) pwrite(r0, &(0x7f0000000000)="fb11859dcec857ed7d0957000000", 0xe, 0x0) 05:08:15 executing program 7: setrlimit(0x8, &(0x7f0000000040)={0x7, 0x8}) r0 = syz_open_pts() close(r0) syz_open_pts() ioctl$TIOCSETAF(r0, 0x802c7416, &(0x7f0000000180)={0x97ac, 0x5, 0xfffffff5, 0xfffffff9, "0900000000e60100004d1d9f8d1b8283476e00"}) writev(r0, &(0x7f0000000ac0)=[{&(0x7f0000000140)="7ed83419c4efd300f046a8b23a2a3b4244e877ffadb3b5826b53322301f1bd0f506fb094b91ce21bda0d51a0b47b69873e4a5ab9702ada356d55b0", 0x3b}, {&(0x7f0000000700)="3de7f0d47414b6c19a4ccf24bfa6a82341404af922a2d2b392aa8d87586d6620cc214ff877d92922ba110528cbffc33dede4723f2e5d835286be8a005a621364e3b1858f787d7911575dddf9109bc58710391b921b643563f1a3c1f1305481c5c467e1579820975c0b165e195540d55f5a50cde29b91118111280cd4ad74aefd292d1e477d1fdea9819c60969addd01d7d50056d652255e8f76fa9d9414fa05c73f0e17b1872dd73992907da9a7a55bba141ce6431ca", 0xb6}], 0x2) write(r0, &(0x7f0000000280)="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", 0x3ed) 05:08:15 executing program 4: sendmsg(0xffffffffffffff9c, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000340)=[{&(0x7f0000000280)="0400000032da2edb097f2741855fd288fd96e3df953d8910a08e31d9047585bb7b7800000000000000032a0be62245c2b9784785f08b2b708237c775fd4f8e9c1304d35397722356edc157b0326bdf84e589d58abd35d049253cbd6891212dd29fa61ef723fca8d813a17502005f8913e94d2975688395abea288bb62c21bc4691fd24c1716d5fc09542a0337b01de42e800080000e8b80b57a3916aabff5d5b1b7fc3ab175559766937e7af951e03000000000000003075e80b18", 0xbb}, {&(0x7f00000000c0)="60bb9d1f419e39b23535b4cbdfdd7573f03b78a83d8d80f0504b25ad69f56202461d2f833919503d664a8582ad5fdf05e60972fb4b63ba345750ebdd630b341ccc8d4759d380db30e758ec12b49b2a915500000000ffffff7f000000003c912520cd7bcd1500"/111, 0x6f}, {&(0x7f00000001c0)="60051e00f61b4085d32b87322472837a53000afb18", 0x15}], 0x3, 0x0}, 0x0) execve(&(0x7f0000001980)='./file0\x00', &(0x7f0000001a40)=[&(0x7f00000019c0)='\x00', &(0x7f0000001a00)='&!+)\x00'], &(0x7f0000001ac0)=[&(0x7f0000001a80)='%-/\x00']) r0 = openat$pf(0xffffffffffffff9c, &(0x7f0000000200), 0x2, 0x0) recvmsg(0xffffffffffffffff, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000280)=[{0x0}, {0x0}], 0x2, 0x0}, 0x0) rmdir(&(0x7f0000001b40)='./file0\x00') r1 = socket$inet6(0x18, 0x1, 0x3f) setsockopt$sock_int(r1, 0xffff, 0x1001, &(0x7f00000018c0)=0x7c4f, 0x4) r2 = open(&(0x7f0000000000)='./file0\x00', 0x400, 0x0) open(&(0x7f0000001900)='./file0\x00', 0x0, 0x20) ioctl$FIOASYNC(r0, 0xc1084425, &(0x7f0000000240)) openat$pf(0xffffffffffffff9c, &(0x7f0000001b00), 0x10, 0x0) recvmsg(r2, &(0x7f0000001880)={&(0x7f0000000080)=@in6, 0xc, &(0x7f00000017c0)=[{&(0x7f0000000440)=""/195, 0xc3}, {&(0x7f0000000540)=""/158, 0x9e}, {&(0x7f0000000600)=""/241, 0xf1}, {&(0x7f0000000700)=""/4096, 0x1000}, {&(0x7f0000000140)=""/58, 0x3a}, {&(0x7f0000001700)=""/177, 0xb1}, {&(0x7f0000000180)=""/35, 0x23}], 0x7, &(0x7f0000001840)=""/56, 0x38}, 0x801) open(&(0x7f0000001940)='./file0\x00', 0x10401, 0x0) 05:08:15 executing program 4: syz_emit_ethernet(0x68, &(0x7f00000000c0)=ANY=[@ANYBLOB="ffffffffffffffff00ffffff86dd60f8bf0000323afffe8000000000000000004000000000aafe"]) 05:08:15 executing program 4: msgget$private(0x0, 0x0) r0 = msgget(0x1, 0x510) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x80000000002) r1 = msgget$private(0x0, 0x48) msgrcv(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100"/240], 0xf0, 0x2, 0x1000) r2 = shmget(0xffffffffffffffff, 0x4000, 0x0, &(0x7f0000ffb000/0x4000)=nil) shmat(r2, &(0x7f0000005000/0x1000)=nil, 0x0) shmat(r2, &(0x7f0000ff4000/0xa000)=nil, 0x1000) msgctl$IPC_STAT(r1, 0x2, &(0x7f0000000100)=""/45) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r4, &(0x7f0000000240)=@un=@file={0xd80f49edce43012d, './file0\x00'}, 0xa) connect$unix(r4, &(0x7f0000000140)=@abs={0x1, 0x0, 0x0}, 0x8) dup2(r4, r3) listen(r4, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) dup2(r6, r5) setsockopt$sock_int(r5, 0xffff, 0x4, &(0x7f0000000080)=0xdcf, 0x4) connect$unix(r6, &(0x7f0000000000)=ANY=[@ANYBLOB="00012e2f66696c6530"], 0xa) accept$unix(r4, &(0x7f0000001640)=@file={0x0, ""/58}, &(0x7f00000000c0)=0x249) openat$pf(0xffffffffffffff9c, &(0x7f0000000200), 0x2, 0x0) 05:08:15 executing program 4: syz_emit_ethernet(0x7e, &(0x7f0000000380)=ANY=[@ANYBLOB="ffffffffffffffffffffffff86dd6031797100253a0000000000000000000000000000ff02000000000000000000000001"]) 05:08:15 executing program 4: r0 = openat$pf(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$BIOCSETIF(r0, 0xc0284459, &(0x7f0000000040)={'tap', 0x0}) 05:08:15 executing program 4: syz_emit_ethernet(0x46, &(0x7f0000000100)={@local, @empty, [], {@ipv6={0x86dd, {0x0, 0x6, "eaef22", 0x10, 0x3a, 0x0, @empty, @mcast2, {[@fragment={0x2}], @icmpv6=@ndisc_rs}}}}}) 05:08:15 executing program 4: syz_emit_ethernet(0x2a, &(0x7f0000000340)={@local, @local, [], {@ipv4={0x800, {{0x5, 0x4, 0x0, 0x0, 0x1c, 0x67, 0x2, 0x0, 0x0, 0x0, @local={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}}, @udp={{0x2, 0x1, 0x8}}}}}}) 05:08:15 executing program 4: ioctl$BIOCSETWF(0xffffffffffffffff, 0x80104277, &(0x7f00000002c0)={0x3, &(0x7f0000000040)=[{}, {0x3}, {0x6, 0x0, 0x0, 0xfc}]}) ioctl$BIOCSETIF(0xffffffffffffffff, 0x8020426c, &(0x7f0000000300)={'tap', 0x0}) fcntl$dupfd(0xffffffffffffffff, 0x0, 0xffffffffffffffff) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x5) r0 = socket(0x2, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$TIOCFLUSH(r1, 0x8020699d, &(0x7f0000000300)) login: witness: lock order reversal: 1st 0xfffffd807e941310 vmmaplk (&map->lock) 2nd 0xfffffd8065ddb820 fdlock (&newfdp->fd_fd.fd_lock) lock order "&newfdp->fd_fd.fd_lock"(rwlock) -> "&map->lock"(rwlock) first seen at: #0 rw_enter+0xd1 #1 uvmfault_lookup+0xd9 #2 uvm_fault_check+0x3a #3 uvm_fault+0x102 #4 kpageflttrap+0x209 #5 kerntrap+0xef #6 alltraps_kern_meltdown+0x7b #7 copyout+0x53 #8 syscall+0x489 #9 Xsyscall+0x128 lock order "&map->lock"(rwlock) -> "&newfdp->fd_fd.fd_lock"(rwlock) first seen at: #0 rw_enter_write+0x5b #1 fill_file+0xad2 #2 sysctl_file+0x62d #3 kern_sysctl+0xfd #4 sys_sysctl+0x209 #5 syscall+0x489 #6 Xsyscall+0x128 Stopped at db_enter+0x18: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x18 witness_checkorder(fffffd8065ddb820,9,0) at witness_checkorder+0x10b7 rw_enter_write(fffffd8065ddb810) at rw_enter_write+0x5b fill_file(ffff800000b93800,fffffd806cf3d0b0,fffffd8065ddb7c8,0,0,ffff8000ffff29a8,dae018dcc0d12eba,fb,0) at fill_file+0xad2 sysctl_file(ffff80002e368b58,4,20000080,ffff80002e368b88,ffff8000fffeda50) at sysctl_file+0x62d kern_sysctl(ffff80002e368b54,5,20000080,ffff80002e368b88,0,0,ad9b4686d1f70b2e) at kern_sysctl+0xfd sys_sysctl(ffff8000fffeda50,ffff80002e368bf8,ffff80002e368c50) at sys_sysctl+0x209 syscall(ffff80002e368cc0) at syscall+0x489 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfea9c389780, count: -9 ddb{1}> show registers rdi 0x3 rsi 0x40000 acpi_pdirpa+0x2be68 rbp 0xffff80002e3684c0 rbx 0x3 rdx 0xffff800000bbcdc0 rcx 0 rax 0x3ffff acpi_pdirpa+0x2be67 r8 0xffff80002e368430 r9 0x8080808080808080 r10 0xea2646b326a68ad7 r11 0xd154ad57fcba886a r12 0xffffffff82aac9c0 w_lodata+0x4f050 r13 0 r14 0xffffffff82aab260 w_lodata+0x4d8f0 r15 0xfffffd8002f62c80 rip 0xffffffff8138d658 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002e3684b0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=481089 stat=onproc flags process=10 proc=4000000 pri=32, usrpri=54, nice=20 forw=0xffffffffffffffff, list=0xffff8000fffec010,0xffff8000ffff6d40 process=0xffff8000fffea9b0 user=0xffff80002e363000, vmspace=0xfffffd807e9412f8 estcpu=12, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 82673 241010 67024 0 2 0x40 syz-executor.2 32994 9794 53503 0 2 0x40 syz-executor.6 21036 298577 42227 32767 2 0x10 syz-executor.0 21036 203715 42227 32767 3 0x4000090 fsleep syz-executor.0 48621 20540 15205 32767 2 0x10 syz-executor.4 48621 204205 15205 32767 2 0x4000010 syz-executor.4 96371 341133 69533 0 2 0x100002 sh 28866 449375 68058 0 2 0x100002 sh 85245 279111 71854 32767 7 0x10 syz-executor.1 *85245 481089 71854 32767 7 0x4000010 syz-executor.1 69533 476029 24558 0 3 0x80 wait syz-executor.3 53503 86576 30254 0 3 0x80 ppwait syz-executor.6 73653 457706 8693 32767 2 0x10 syz-executor.7 73653 280147 8693 32767 3 0x4000090 fsleep syz-executor.7 68058 97564 30104 0 3 0x80 wait syz-executor.5 8693 272343 4912 32767 3 0x90 nanoslp syz-executor.7 30254 28911 16520 0 3 0x82 wait syz-executor.6 4912 464321 16520 0 3 0x82 wait syz-executor.7 15205 33865 50035 32767 3 0x90 nanoslp syz-executor.4 24558 414759 16520 0 3 0x82 wait syz-executor.3 50035 299036 16520 0 3 0x82 wait syz-executor.4 71854 348845 77406 32767 3 0x90 nanoslp syz-executor.1 42227 159860 1444 32767 3 0x90 nanoslp syz-executor.0 30104 82141 16520 0 3 0x82 wait syz-executor.5 67024 333435 56726 0 3 0x80 ppwait syz-executor.2 56726 230877 16520 0 3 0x82 wait syz-executor.2 77406 147227 16520 0 3 0x82 wait syz-executor.1 1444 89715 16520 0 3 0x82 wait syz-executor.0 16520 73380 4639 0 3 0x82 thrsleep syz-fuzzer 16520 70239 4639 0 3 0x4000082 thrsleep syz-fuzzer 16520 206339 4639 0 3 0x4000082 kqread syz-fuzzer 16520 291951 4639 0 3 0x4000082 thrsleep syz-fuzzer 16520 11148 4639 0 3 0x4000082 thrsleep syz-fuzzer 16520 32406 4639 0 3 0x4000082 thrsleep syz-fuzzer 16520 242017 4639 0 3 0x4000082 thrsleep syz-fuzzer 16520 356705 4639 0 3 0x4000082 thrsleep syz-fuzzer 16520 110541 4639 0 3 0x4000082 thrsleep syz-fuzzer 16520 493567 4639 0 3 0x4000082 thrsleep syz-fuzzer 4639 451553 15433 0 3 0x10008a sigsusp ksh 15433 303861 85179 0 3 0x9a kqread sshd 69317 324084 1 0 3 0x100083 ttyin getty 85179 54315 1 0 3 0x88 kqread sshd 22742 152612 90074 73 3 0x1100090 kqread syslogd 90074 463445 1 0 3 0x100082 netio syslogd 48105 418711 1 0 3 0x100080 kqread resolvd 45723 339487 75956 77 3 0x100092 kqread dhcpleased 36970 403759 75956 77 3 0x100092 kqread dhcpleased 75956 282465 1 0 3 0x80 kqread dhcpleased 45725 320230 0 0 3 0x14200 bored smr 86915 128022 0 0 2 0x14200 zerothread 84591 68309 0 0 3 0x14200 aiodoned aiodoned 29014 472340 0 0 3 0x14200 syncer update 15954 200698 0 0 3 0x14200 cleaner cleaner 98137 33774 0 0 3 0x14200 reaper reaper 37236 401910 0 0 3 0x14200 pgdaemon pagedaemon 8556 284087 0 0 3 0x14200 bored viomb 11305 156456 0 0 3 0x40014200 acpi0 acpi0 14543 289086 0 0 3 0x40014200 idle1 76446 296239 0 0 3 0x14200 bored softnet 16154 303868 0 0 3 0x14200 bored systqmp 93791 68291 0 0 3 0x14200 bored systq 10466 2369 0 0 3 0x40014200 bored softclock 88398 441367 0 0 3 0x40014200 idle0 1 161282 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 85245 (syz-executor.1) thread 0xffff8000fffeda50 (481089) shared rwlock vmmaplk r = 0 (0xfffffd807e941310) #0 witness_lock+0x44d #1 uvm_vslock+0xc8 #2 sys_sysctl+0x2d8 #3 syscall+0x489 #4 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff82941f10) #0 witness_lock+0x44d #1 rw_enter+0x3e1 #2 sys_sysctl+0x1b3 #3 syscall+0x489 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff829de988) #0 witness_lock+0x44d #1 syscall+0x3ef #2 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10169 6406K 6419K 78643K 11259 0 pcb 13 8K 8K 78643K 13 0 rtable 230 6K 6K 78643K 324 0 ifaddr 81 16K 16K 78643K 82 0 counters 56 35K 35K 78643K 56 0 ioctlops 0 0K 2K 78643K 33 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1270 79K 79K 78643K 1283 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 26 97K 113K 78643K 147 0 proc 56 74K 111K 78643K 451 0 subproc 104 6K 6K 78643K 104 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 99 6K 6K 78643K 99 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 2K 78643K 594 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 284 77K 78K 78643K 3097 0 UVM aobj 4 2K 2K 78643K 4 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 27 2K 2K 78643K 27 0 temp 87 4694K 4757K 78643K 4183 0 kqueue 12 18K 18K 78643K 22 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> 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 29 0 26 1 0 1 1 0 8 0 rtentry 112 107 0 1 4 0 4 4 0 8 0 unpcb 136 34 0 21 1 0 1 1 0 8 0 syncache 296 4 0 4 1 1 0 1 0 8 0 tcpcb 736 8 0 4 1 0 1 1 0 8 0 arp 120 18 0 0 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 304 57 0 50 1 0 1 1 0 8 0 nd6 48 20 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 256 449 0 0 29 0 29 29 0 8 0 art_table 32 450 0 0 4 0 4 4 0 8 0 art_node 16 106 0 10 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1481 0 57 89 0 89 89 0 8 0 ffsino 272 1481 0 57 95 0 95 95 0 8 0 nchpl 144 1742 0 78 62 0 62 62 0 8 0 uvmvnodes 80 1594 0 0 33 0 33 33 0 8 0 vnodes 224 1594 0 0 94 0 94 94 0 8 0 namei 1024 5727 0 5727 2 0 2 2 0 8 2 percpumem 16 40 0 0 1 0 1 1 0 8 0 scxspl 216 5363 0 5363 2 1 1 2 0 8 1 plimitpl 152 31 0 8 1 0 1 1 0 8 0 sigapl 424 420 0 369 7 0 7 7 0 8 0 futexpl 64 43 0 41 1 0 1 1 0 8 0 knotepl 120 113 0 0 4 0 4 4 0 8 0 kqueuepl 216 18 0 10 1 0 1 1 0 8 0 pipepl 336 122 0 94 3 0 3 3 0 8 0 fdescpl 496 406 0 369 7 1 6 6 0 8 0 filepl 152 1474 0 1238 10 0 10 10 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 23 0 7 1 0 1 1 0 8 0 pgrppl 48 23 0 7 1 0 1 1 0 8 0 ucredpl 96 73 0 59 1 0 1 1 0 8 0 zombiepl 144 369 0 369 1 0 1 1 0 8 1 processpl 1064 420 0 369 5 1 4 4 0 8 0 procpl 672 442 0 378 6 0 6 6 0 8 0 sockpl 480 121 0 98 4 0 4 4 0 8 1 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 145 0 0 18 0 18 18 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 259 0 0 16 0 16 16 0 8 0 bufpl 288 3593 0 144 247 0 247 247 0 8 0 anonpl 24 64651 0 52619 78 2 76 76 0 186 1 amapchunkpl 152 6696 0 5988 33 1 32 32 0 158 2 amappl16 200 573 0 295 19 1 18 18 0 8 0 amappl15 192 96 0 89 1 0 1 1 0 8 0 amappl14 184 11 0 8 1 0 1 1 0 8 0 amappl13 176 77 0 74 1 0 1 1 0 8 0 amappl12 168 27 0 20 1 0 1 1 0 8 0 amappl11 160 39 0 29 1 0 1 1 0 8 0 amappl10 152 44 0 38 1 0 1 1 0 8 0 amappl9 144 480 0 471 1 0 1 1 0 8 0 amappl8 136 527 0 485 2 0 2 2 0 8 0 amappl7 128 115 0 104 1 0 1 1 0 8 0 amappl6 120 227 0 203 2 0 2 2 0 8 1 amappl5 112 217 0 194 1 0 1 1 0 8 0 amappl4 104 758 0 728 2 0 2 2 0 8 1 amappl3 96 167 0 156 1 0 1 1 0 8 0 amappl2 88 497 0 455 3 0 3 3 0 8 1 amappl1 80 10221 0 9626 18 0 18 18 0 8 4 amappl 88 2700 0 2472 6 0 6 6 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 406 0 369 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 406 0 369 1 0 1 1 0 8 0 vmmpekpl 168 7777 0 7737 2 0 2 2 0 8 0 vmmpepl 168 39921 0 37482 125 0 125 125 0 357 16 vmsppl 368 405 0 369 4 0 4 4 0 8 0 rwobjpl 56 12066 0 9275 42 0 42 42 0 8 0 pdppl 4096 819 0 738 101 12 89 89 0 8 8 pvpl 32 242846 0 226147 262 2 260 260 0 265 120 pmappl 248 405 0 369 4 1 3 3 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 614 0 14 18 0 18 18 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff829baff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff829de780) at __mp_lock+0x122 intr_handler(ffff800029f3e5c0,ffff800000077500) at intr_handler+0x5e Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff829de780) at __mp_lock+0x120 softintr_dispatch(0) at softintr_dispatch+0x4e Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x7f7ffffe2b20, count: -9 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x18 witness_checkorder(fffffd8065ddb820,9,0) at witness_checkorder+0x10b7 rw_enter_write(fffffd8065ddb810) at rw_enter_write+0x5b fill_file(ffff800000b93800,fffffd806cf3d0b0,fffffd8065ddb7c8,0,0,ffff8000ffff29a8,dae018dcc0d12eba,fb,0) at fill_file+0xad2 sysctl_file(ffff80002e368b58,4,20000080,ffff80002e368b88,ffff8000fffeda50) at sysctl_file+0x62d kern_sysctl(ffff80002e368b54,5,20000080,ffff80002e368b88,0,0,ad9b4686d1f70b2e) at kern_sysctl+0xfd sys_sysctl(ffff8000fffeda50,ffff80002e368bf8,ffff80002e368c50) at sys_sysctl+0x209 syscall(ffff80002e368cc0) at syscall+0x489 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfea9c389780, count: -9