syzbot


panic.go:LINE +0x72 fp=ADDR sp=ADDR pc=ADDR (6)

Status: closed as invalid on 2020/02/09 09:06
Reported-by: syzbot+c046beaa6e22b56a8c0f@syzkaller.appspotmail.com
First crash: 1749d, last: 1749d
Similar bugs (7)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd panic.go:LINE +0x72 fp=ADDR sp=ADDR pc=ADDR (2) 1 1846d 1846d 0/3 closed as invalid on 2019/11/02 08:04
openbsd panic.go:LINE +0x72 fp=ADDR sp=ADDR pc=ADDR (8) 10 1611d 1682d 0/3 closed as invalid on 2020/08/04 06:37
openbsd panic.go:LINE +0x72 fp=ADDR sp=ADDR pc=ADDR (7) 1 1725d 1725d 0/3 closed as invalid on 2020/03/03 08:16
openbsd panic.go:LINE +0x72 fp=ADDR sp=ADDR pc=ADDR (3) 1 1817d 1817d 0/3 closed as invalid on 2019/12/02 08:42
openbsd panic.go:LINE +0x72 fp=ADDR sp=ADDR pc=ADDR (4) 2 1762d 1763d 0/3 closed as invalid on 2020/01/26 09:58
openbsd panic.go:LINE +0x72 fp=ADDR sp=ADDR pc=ADDR 1 1868d 1868d 0/3 closed as invalid on 2019/10/26 08:48
openbsd panic.go:LINE +0x72 fp=ADDR sp=ADDR pc=ADDR (5) 1 1756d 1756d 0/3 closed as invalid on 2020/02/01 08:31

Sample crash report:
	/usr/local/go/src/runtime/panic.go:774 +0x72 fp=0xc003191560 sp=0xc003191530 pc=0x42e9e2
runtime.sigpanic()
	/usr/local/go/src/runtime/signal_unix.go:401 +0x3de fp=0xc003191590 sp=0xc003191560 pc=0x443ece
compress/flate.(*compressor).deflate(0xc0001b6000)
	/usr/local/go/src/compress/flate/deflate.go:428 +0x22d fp=0xc003191600 sp=0xc003191590 pc=0x65cacd
compress/flate.(*compressor).syncFlush(0xc0001b6000, 0xc000283000, 0xbd)
	/usr/local/go/src/compress/flate/deflate.go:565 +0x50 fp=0xc003191628 sp=0xc003191600 pc=0x65d700
compress/flate.(*Writer).Flush(...)
	/usr/local/go/src/compress/flate/deflate.go:724
github.com/google/syzkaller/pkg/rpctype.(*flateConn).Write(0xc0000f8510, 0xc000283000, 0xbd, 0x1000, 0xc002a90550, 0x16, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpctype/rpc.go:139 +0x80 fp=0xc003191678 sp=0xc003191628 pc=0x7e71f0
bufio.(*Writer).Flush(0xc0000f4480, 0x827ae0, 0xc002a90550)
	/usr/local/go/src/bufio/bufio.go:593 +0x75 fp=0xc0031916d8 sp=0xc003191678 pc=0x557165
net/rpc.(*gobClientCodec).WriteRequest(0xc0000f8600, 0xc00005f818, 0x827ae0, 0xc002a90550, 0xc0002a1180, 0xc0002a1180)
	/usr/local/go/src/net/rpc/client.go:224 +0xb3 fp=0xc003191710 sp=0xc0031916d8 pc=0x7e04f3
net/rpc.(*Client).send(0xc00005f800, 0xc002a905a0)
	/usr/local/go/src/net/rpc/client.go:91 +0x1e3 fp=0xc0031917b0 sp=0xc003191710 pc=0x7df5b3
net/rpc.(*Client).Go(0xc00005f800, 0x8f9671, 0xc, 0x827ae0, 0xc002a90550, 0x827b20, 0xc002c9a300, 0xc002c9a360, 0xc001fbefc0)
	/usr/local/go/src/net/rpc/client.go:316 +0xcc fp=0xc0031917f0 sp=0xc0031917b0 pc=0x7e084c
net/rpc.(*Client).Call(...)
	/usr/local/go/src/net/rpc/client.go:322
github.com/google/syzkaller/pkg/rpctype.(*RPCClient).Call(0xc00000d160, 0x8f9671, 0xc, 0x827ae0, 0xc002a90550, 0x827b20, 0xc002c9a300, 0x0, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpctype/rpc.go:90 +0x174 fp=0xc0031918b8 sp=0xc0031917f0 pc=0x7e6dd4
main.(*Fuzzer).poll(0xc0000d0b00, 0xc002aa5b01, 0xc002aa5b60, 0xa)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:360 +0x174 fp=0xc003191b38 sp=0xc0031918b8 pc=0x7eaa84
main.(*Fuzzer).pollLoop(0xc0000d0b00)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:345 +0x3c8 fp=0xc003191c68 sp=0xc003191b38 pc=0x7ea758
main.main()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:262 +0x12bd fp=0xc003191f60 sp=0xc003191c68 pc=0x7e975d
runtime.main()
	/usr/local/go/src/runtime/proc.go:203 +0x21e fp=0xc003191fe0 sp=0xc003191f60 pc=0x43037e
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1357 +0x1 fp=0xc003191fe8 sp=0xc003191fe0 pc=0x45d471

goroutine 14 [chan receive]:
main.main.func1(0xc00006a540)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:137 +0x34
created by main.main
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:135 +0x5b0

goroutine 7 [syscall]:
os/signal.signal_recv(0x0)
	/usr/local/go/src/runtime/sigqueue.go:147 +0x9c
os/signal.loop()
	/usr/local/go/src/os/signal/signal_unix.go:23 +0x22
created by os/signal.init.0
	/usr/local/go/src/os/signal/signal_unix.go:29 +0x41

goroutine 13 [chan receive]:
github.com/google/syzkaller/pkg/osutil.HandleInterrupts.func1(0xc00006a540)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/osutil/osutil_unix.go:74 +0xb6
created by github.com/google/syzkaller/pkg/osutil.HandleInterrupts
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/osutil/osutil_unix.go:71 +0x3f

goroutine 20 [IO wait]:
internal/poll.runtime_pollWait(0x26dfa6d98, 0x72, 0xffffffffffffffff)
	/usr/local/go/src/runtime/netpoll.go:184 +0x55
internal/poll.(*pollDesc).wait(0xc00133e6d8, 0x72, 0x10001, 0x10000, 0xffffffffffffffff)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Read(0xc00133e6c0, 0xc003400000, 0x10000, 0x10000, 0x0, 0x0, 0x0)
	/usr/local/go/src/internal/poll/fd_unix.go:169 +0x1cf
os.(*File).read(...)
	/usr/local/go/src/os/file_unix.go:259
os.(*File).Read(0xc000120d90, 0xc003400000, 0x10000, 0x10000, 0x10000, 0x0, 0x0)
	/usr/local/go/src/os/file.go:116 +0x71
github.com/google/syzkaller/pkg/ipc.makeCommand.func2(0xc000120d90, 0xc001696000)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:594 +0xaf
created by github.com/google/syzkaller/pkg/ipc.makeCommand
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:588 +0x89f

goroutine 33 [IO wait]:
internal/poll.runtime_pollWait(0x26dfa6cc8, 0x72, 0xffffffffffffffff)
	/usr/local/go/src/runtime/netpoll.go:184 +0x55
internal/poll.(*pollDesc).wait(0xc0000c4618, 0x72, 0x1000, 0x1000, 0xffffffffffffffff)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Read(0xc0000c4600, 0xc000282000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
	/usr/local/go/src/internal/poll/fd_unix.go:169 +0x1cf
net.(*netFD).Read(0xc0000c4600, 0xc000282000, 0x1000, 0x1000, 0xc000297a60, 0xc000297b40, 0x7c388d)
	/usr/local/go/src/net/fd_unix.go:202 +0x4f
net.(*conn).Read(0xc00000e650, 0xc000282000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
	/usr/local/go/src/net/net.go:184 +0x68
bufio.(*Reader).fill(0xc00005f6e0)
	/usr/local/go/src/bufio/bufio.go:100 +0x103
bufio.(*Reader).ReadByte(0xc00005f6e0, 0xc000297c00, 0xc0000c4680, 0xc00000d5e0)
	/usr/local/go/src/bufio/bufio.go:252 +0x39
compress/flate.(*decompressor).moreBits(0xc00027c000, 0x91cc30, 0xc000297b88)
	/usr/local/go/src/compress/flate/inflate.go:696 +0x37
compress/flate.(*decompressor).nextBlock(0xc00027c000)
	/usr/local/go/src/compress/flate/inflate.go:303 +0x36
compress/flate.(*decompressor).Read(0xc00027c000, 0xc00028e000, 0x1000, 0x1000, 0x892e40, 0xc000e1fa10, 0x199)
	/usr/local/go/src/compress/flate/inflate.go:347 +0x77
github.com/google/syzkaller/pkg/rpctype.(*flateConn).Read(0xc0000f8510, 0xc00028e000, 0x1000, 0x1000, 0x10, 0xc000297b88, 0x7c36ed)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpctype/rpc.go:131 +0x51
bufio.(*Reader).Read(0xc00005f740, 0xc000020730, 0x1, 0x9, 0x0, 0x0, 0xc000297d70)
	/usr/local/go/src/bufio/bufio.go:226 +0x26a
io.ReadAtLeast(0x99dcc0, 0xc00005f740, 0xc000020730, 0x1, 0x9, 0x1, 0x1, 0x0, 0x0)
	/usr/local/go/src/io/io.go:310 +0x87
io.ReadFull(...)
	/usr/local/go/src/io/io.go:329
encoding/gob.decodeUintReader(0x99dcc0, 0xc00005f740, 0xc000020730, 0x9, 0x9, 0x4050d5, 0x43080c, 0xc000297d48, 0x45a320)
	/usr/local/go/src/encoding/gob/decode.go:120 +0x6f
encoding/gob.(*Decoder).recvMessage(0xc0000c4680, 0x404fbc)
	/usr/local/go/src/encoding/gob/decoder.go:81 +0x57
encoding/gob.(*Decoder).decodeTypeSequence(0xc0000c4680, 0xc000000100, 0xc000297e10)
	/usr/local/go/src/encoding/gob/decoder.go:143 +0x10c
encoding/gob.(*Decoder).DecodeValue(0xc0000c4680, 0x82da20, 0xc0000f89f0, 0x16, 0x0, 0x0)
	/usr/local/go/src/encoding/gob/decoder.go:211 +0x10b
encoding/gob.(*Decoder).Decode(0xc0000c4680, 0x82da20, 0xc0000f89f0, 0x0, 0x0)
	/usr/local/go/src/encoding/gob/decoder.go:188 +0x16d
net/rpc.(*gobClientCodec).ReadResponseHeader(0xc0000f8600, 0xc0000f89f0, 0xc000e1f9e0, 0x0)
	/usr/local/go/src/net/rpc/client.go:228 +0x45
net/rpc.(*Client).input(0xc00005f800)
	/usr/local/go/src/net/rpc/client.go:109 +0xa5
created by net/rpc.NewClientWithCodec
	/usr/local/go/src/net/rpc/client.go:206 +0x89

goroutine 38 [runnable]:
syscall.Syscall(0x3, 0xb, 0xc002863650, 0xc, 0xc, 0xc, 0x0)
	/usr/local/go/src/syscall/asm_unix_amd64.s:19 +0x5
syscall.read(0xb, 0xc002863650, 0xc, 0xc, 0x0, 0x99f120, 0xc5a4d0)
	/usr/local/go/src/syscall/zsyscall_openbsd_amd64.go:870 +0x5a
syscall.Read(...)
	/usr/local/go/src/syscall/syscall_unix.go:183
internal/poll.(*FD).Read(0xc00133e780, 0xc002863650, 0xc, 0xc, 0x0, 0x0, 0x0)
	/usr/local/go/src/internal/poll/fd_unix.go:165 +0x164
os.(*File).read(...)
	/usr/local/go/src/os/file_unix.go:259
os.(*File).Read(0xc000120da0, 0xc002863650, 0xc, 0xc, 0xc001cc19d8, 0x40c698, 0x10)
	/usr/local/go/src/os/file.go:116 +0x71
io.ReadAtLeast(0x99e460, 0xc000120da0, 0xc002863650, 0xc, 0xc, 0xc, 0x0, 0x3ffc18, 0x3ffc18)
	/usr/local/go/src/io/io.go:310 +0x87
io.ReadFull(...)
	/usr/local/go/src/io/io.go:329
github.com/google/syzkaller/pkg/ipc.(*command).exec(0xc001696000, 0xc0000225c0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc00000fbb0, 0x203000, 0x203000, ...)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:748 +0x282
github.com/google/syzkaller/pkg/ipc.(*Env).Exec(0xc000092000, 0xc0000225c0, 0xc002ca3080, 0xc001cc1ce8, 0x7b0fc4, 0xc001cc1d40, 0x44500e, 0x413b6a, 0xc002cb48f8, 0xc00000fbb0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:280 +0x108
main.(*Proc).executeRaw(0xc002e74480, 0xc0000225c0, 0xc002ca3080, 0x1, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:292 +0x20c
main.(*Proc).execute(0xc002e74480, 0xc0000225c0, 0xc002ca3080, 0x0, 0x1, 0x1)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:255 +0x6a
main.(*Proc).loop(0xc002e74480)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:101 +0x4de
created by main.main
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:259 +0x114c

goroutine 39 [IO wait]:
internal/poll.runtime_pollWait(0x26dfa6988, 0x72, 0xffffffffffffffff)
	/usr/local/go/src/runtime/netpoll.go:184 +0x55
internal/poll.(*pollDesc).wait(0xc00176c198, 0x72, 0x1, 0xc, 0xffffffffffffffff)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Read(0xc00176c180, 0xc0028633b0, 0xc, 0xc, 0x0, 0x0, 0x0)
	/usr/local/go/src/internal/poll/fd_unix.go:169 +0x1cf
os.(*File).read(...)
	/usr/local/go/src/os/file_unix.go:259
os.(*File).Read(0xc00000f1d8, 0xc0028633b0, 0xc, 0xc, 0xc00318f9d8, 0x40c698, 0x10)
	/usr/local/go/src/os/file.go:116 +0x71
io.ReadAtLeast(0x99e460, 0xc00000f1d8, 0xc0028633b0, 0xc, 0xc, 0xc, 0x0, 0x3fd838, 0x3fd838)
	/usr/local/go/src/io/io.go:310 +0x87
io.ReadFull(...)
	/usr/local/go/src/io/io.go:329
github.com/google/syzkaller/pkg/ipc.(*command).exec(0xc0023ea850, 0xc0000225c0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4eeea3, 0xc00128ea00, 0x6d1a19df3730658f, ...)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:748 +0x282
github.com/google/syzkaller/pkg/ipc.(*Env).Exec(0xc000092090, 0xc0000225c0, 0xc002c2aa00, 0xc00318fd40, 0x787a61, 0xc002c35d70, 0x3, 0x0, 0x9adf40, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:280 +0x108
main.(*Proc).executeRaw(0xc002e745c0, 0xc0000225c0, 0xc002c2aa00, 0x1, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:292 +0x20c
main.(*Proc).execute(0xc002e745c0, 0xc0000225c0, 0xc002c2aa00, 0x0, 0x1, 0x1)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:255 +0x6a
main.(*Proc).loop(0xc002e745c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:101 +0x4de
created by main.main
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:259 +0x114c

goroutine 40 [IO wait]:
internal/poll.runtime_pollWait(0x26dfa6bf8, 0x72, 0xffffffffffffffff)
	/usr/local/go/src/runtime/netpoll.go:184 +0x55
internal/poll.(*pollDesc).wait(0xc00176c0d8, 0x72, 0x1ff01, 0x1ffd6, 0xffffffffffffffff)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Read(0xc00176c0c0, 0xc00341002a, 0x1ffd6, 0x1ffd6, 0x0, 0x0, 0x0)
	/usr/local/go/src/internal/poll/fd_unix.go:169 +0x1cf
os.(*File).read(...)
	/usr/local/go/src/os/file_unix.go:259
os.(*File).Read(0xc00000f1c0, 0xc00341002a, 0x1ffd6, 0x1ffd6, 0x2a, 0x0, 0x0)
	/usr/local/go/src/os/file.go:116 +0x71
github.com/google/syzkaller/pkg/ipc.makeCommand.func2(0xc00000f1c0, 0xc0023ea850)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:594 +0xaf
created by github.com/google/syzkaller/pkg/ipc.makeCommand
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:588 +0x89f

goroutine 183 [select]:
github.com/google/syzkaller/pkg/ipc.(*command).exec.func1(0xc001696000, 0xc001e19aa0, 0xc001e19a40)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:733 +0xba
created by github.com/google/syzkaller/pkg/ipc.(*command).exec
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:731 +0x19c

goroutine 182 [select]:
github.com/google/syzkaller/pkg/ipc.(*command).exec.func1(0xc0023ea850, 0xc001e199e0, 0xc001e19980)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:733 +0xba
created by github.com/google/syzkaller/pkg/ipc.(*command).exec
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:731 +0x19c


OpenBSD/amd64 (ci-openbsd-multicore-5.c.syzkaller.internal) (tty00)

login: panic: amap_wipeout: corrupt amap
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
 490731  56195      0     0x14000      0x200    0  zerothread
*496902  27711      0     0x14000      0x200    1  reaper
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff822014dd) at panic+0x15c sys/kern/subr_prf.c:207
amap_wipeout(fffffd8067c0c078) at amap_wipeout+0x208 sys/uvm/uvm_amap.c:447
uvm_unmap_detach(ffff800020a75590,1) at uvm_unmap_detach+0x163 sys/uvm/uvm_map.c:1582
uvm_map_teardown(fffffd806e917a18) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2755
uvmspace_free(fffffd806e917a18) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3611
uvm_exit(ffff800020ad92d8) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297
reaper(ffff800020a29d40) at reaper+0x189 sys/kern/kern_exit.c:443
end trace frame: 0x0, count: 7
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{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
amap_wipeout: corrupt amap
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff822014dd) at panic+0x15c sys/kern/subr_prf.c:207
amap_wipeout(fffffd8067c0c078) at amap_wipeout+0x208 sys/uvm/uvm_amap.c:447
uvm_unmap_detach(ffff800020a75590,1) at uvm_unmap_detach+0x163 sys/uvm/uvm_map.c:1582
uvm_map_teardown(fffffd806e917a18) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2755
uvmspace_free(fffffd806e917a18) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3611
uvm_exit(ffff800020ad92d8) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297
reaper(ffff800020a29d40) at reaper+0x189 sys/kern/kern_exit.c:443
end trace frame: 0x0, count: -8
ddb{1}> show registers
rdi                                0
rsi                              0x1
rbp               0xffff800020a75410
rbx               0xffff800020a754c0
rdx               0xffff800020a29d40
rcx                                0
rax                                0
r8                0xffffffff81f53faf    kprintf+0x16f
r9                               0x1
r10                             0x25
r11                0x10a22a54f15a928
r12                     0x3000000008
r13               0xffff800020a75420
r14                            0x100
r15                              0x1
rip               0xffffffff81e05b48    db_enter+0x18
cs                               0x8
rflags                         0x246
rsp               0xffff800020a75400
ss                              0x10
db_enter+0x18:  addq    $0x8,%rsp
ddb{1}> show proc
PROC (reaper) pid=496902 stat=onproc
    flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
    pri=4, usrpri=51, nice=20
    forw=0xffffffffffffffff, list=0xffff800020a29ad0,0xffff800020a7dd58
    process=0xffff800020a5c788 user=0xffff800020a70000, vmspace=0xffffffff8263d340
    estcpu=1, cpticks=8, pctcpu=0.20
    user=0, sys=7, intr=0
ddb{1}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 66224   98424      0      0  3     0x14200  bored         sosplice
 41466  471160  24210      0  3    0x10008a  pause         ksh
 24210  456187  58377      0  3        0x92  select        sshd
 16277  114857      1      0  3    0x100083  ttyin         getty
 58377  401360      1      0  3        0x80  select        sshd
 25452  274340   6228     74  3    0x100092  bpf           pflogd
  6228  223422      1      0  3        0x80  netio         pflogd
 71575  211508   1564     73  3    0x100090  kqread        syslogd
  1564  384885      1      0  3    0x100082  netio         syslogd
 41941   56287      1     77  3    0x100090  poll          dhclient
 53552  511977      1      0  3        0x80  poll          dhclient
 56195  490731      0      0  7     0x14200                zerothread
 40142  405684      0      0  3     0x14200  aiodoned      aiodoned
 38995  102673      0      0  3     0x14200  syncer        update
 35851  342807      0      0  3     0x14200  cleaner       cleaner
*27711  496902      0      0  7     0x14200                reaper
 90195  260725      0      0  3     0x14200  pgdaemon      pagedaemon
 73205  409749      0      0  3     0x14200  bored         crynlk
 37429  365429      0      0  3     0x14200  bored         crypto
 58541  256553      0      0  3  0x40014200  acpi0         acpi0
 13026  251454      0      0  3  0x40014200                idle1
 63883  220238      0      0  3     0x14200  bored         softnet
 42475  281929      0      0  3     0x14200  bored         systqmp
  7060  335383      0      0  3     0x14200  bored         systq
  4258  313999      0      0  3  0x40014200  bored         softclock
 14870   91068      0      0  3  0x40014200                idle0
 46195  387838      0      0  3     0x14200  bored         smr
     1   41984      0      0  3        0x82  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb{1}> show all locks
Process 27711 (reaper) thread 0xffff800020a29d40 (496902)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8262c6a0)
#0  witness_lock+0x52e sys/kern/subr_witness.c:1164
#1  uvm_pause+0x5b sys/uvm/uvm_glue.c:438
#2  uvm_unmap_detach+0x13a sys/uvm/uvm_map.c:1581
#3  uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2755
#4  uvmspace_free+0x86 sys/uvm/uvm_map.c:3611
#5  uvm_exit+0x29 sys/uvm/uvm_glue.c:297
#6  reaper+0x189 sys/kern/kern_exit.c:443
#7  proc_trampoline+0x1c
ddb{1}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf  9513   6421K    6861K  78643K     10942        0
            pcb    13      8K       8K  78643K        77        0
         rtable   115      4K       4K  78643K       301        0
         ifaddr    70     14K      14K  78643K       109        0
       counters    43     33K      34K  78643K        55        0
       ioctlops     0      0K       4K  78643K      1473        0
            iov     0      0K      16K  78643K        31        0
          mount     1      1K       1K  78643K         1        0
         vnodes  1224     77K      77K  78643K      1325        0
      UFS quota     1     32K      32K  78643K         1        0
      UFS mount     5     36K      36K  78643K         5        0
            shm     2      1K       5K  78643K         5        0
         VM map     2      1K       1K  78643K         2        0
            sem    12      0K       0K  78643K        30        0
        dirhash    12      2K       2K  78643K        12        0
           ACPI  1809    196K     290K  78643K     12766        0
      file desc     3      8K      25K  78643K       194        0
           proc    62     63K      83K  78643K       463        0
        subproc    14      0K       2K  78643K        34        0
    NFS srvsock     1      0K       0K  78643K         1        0
     NFS daemon     1     16K      16K  78643K         1        0
    ip_moptions     0      0K       0K  78643K        12        0
       in_multi    46      2K       2K  78643K        67        0
    ether_multi     1      0K       0K  78643K         4        0
            mrt     0      0K       0K  78643K         6        0
    ISOFS mount     1     32K      32K  78643K         1        0
  MSDOSFS mount     1     16K      16K  78643K         1        0
           ttys    61    281K     281K  78643K        61        0
           exec     0      0K       1K  78643K       219        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   119     38K      39K  78643K      1615        0
       UVM aobj    22      2K       2K  78643K        24        0
        memdesc     1      4K       4K  78643K         1        0
    crypto data     1      1K       1K  78643K         1        0
    ip6_options     0      0K       0K  78643K        36        0
            NDP    11      0K       0K  78643K        22        0
           temp    99   3011K    3605K  78643K      8876        0
         kqueue     2      2K      14K  78643K        23        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
arp         64        7    0        0     1     0     1     1     0     8    0
plcache    128       20    0        0     1     0     1     1     0     8    0
rtpcb       80       81    0       79     1     0     1     1     0     8    0
rtentry    112       58    0       12     2     0     2     2     0     8    0
unpcb      120      437    0      427     2     0     2     2     0     8    1
syncache   264        6    0        6     2     1     1     1     0     8    1
sackhl      24        1    0        1     1     0     1     1     0     8    1
tcpqe       32        1    0        1     1     0     1     1     0     8    1
tcpcb      544      114    0      111     2     0     2     2     0     8    1
inpcb      280      351    0      345     2     0     2     2     0     8    1
rttmr       72        3    0        3     1     0     1     1     0     8    1
nd6         48        5    0        2     1     0     1     1     0     8    0
swfcl       56        2    0        0     1     0     1     1     0     8    0
ppxss      1128       2    0        2     1     0     1     1     0     8    1
pffrag     232        6    0        6     1     0     1     1     0   482    1
pffrnode    88        6    0        6     1     0     1     1     0     8    1
pffrent     40      144    0      144     1     0     1     1     0     8    1
pfosfp      40      846    0      423     5     0     5     5     0     8    0
pfosfpen   112     1428    0      714    21     0    21    21     0     8    0
pfstitem    24       37    0        1     1     0     1     1     0     8    0
pfstkey    112       37    0        1     2     0     2     2     0     8    0
pfstate    328       37    0        1     3     0     3     3     0     8    0
pfrule     1360      21    0       16     2     1     1     2     0     8    0
art_heap8  4096       2    0        0     2     0     2     2     0     8    0
art_heap4  256      253    0       39    14     0    14    14     0     8    0
art_table   32      255    0       39     2     0     2     2     0     8    0
art_node    16       55    0       12     1     0     1     1     0     8    0
sysvmsgpl   40        3    0        2     1     0     1     1     0     8    0
semupl     112        1    0        1     1     1     0     1     0     8    0
semapl     112       28    0       18     1     0     1     1     0     8    0
shmpl      112       22    0        2     1     0     1     1     0     8    0
dirhash    1024      17    0        0     3     0     3     3     0     8    0
dino1pl    128     1669    0      258    46     0    46    46     0     8    0
ffsino     272     1669    0      258    95     0    95    95     0     8    0
nchpl      144     2142    0      524    61     0    61    61     0     8    0
uvmvnodes   72     1790    0        0    33     0    33    33     0     8    0
vnodes     208     1790    0        0    95     0    95    95     0     8    0
namei      1024    5839    0     5839     1     0     1     1     0     8    1
percpumem   16       38    0        6     1     0     1     1     0     8    0
vcpupl     1984       2    0        0     1     0     1     1     0     8    0
vmpool     560        2    0        0     1     0     1     1     0     8    0
scxspl     192     6679    0     6679     8     1     7     7     0     8    7
plimitpl   152       31    0       23     1     0     1     1     0     8    0
sigapl     432      393    0      380     3     1     2     3     0     8    0
futexpl     56     3951    0     3951     1     0     1     1     0     8    1
knotepl    112       79    0       74     1     0     1     1     0     8    0
kqueuepl   104       58    0       57     1     0     1     1     0     8    0
pipelkpl    48      111    0      103     1     0     1     1     0     8    0
pipepl     120      222    0      211     1     0     1     1     0     8    0
fdescpl    496      394    0      380     3     0     3     3     0     8    0
filepl     152     2853    0     2785     6     0     6     6     0     8    2
lockfpl    104       56    0       55     1     0     1     1     0     8    0
lockfspl    48       21    0       20     1     0     1     1     0     8    0
sessionpl  112       18    0        7     1     0     1     1     0     8    0
pgrppl      48       24    0       13     1     0     1     1     0     8    0
ucredpl     96      213    0      204     1     0     1     1     0     8    0
zombiepl   144      382    0      379     1     0     1     1     0     8    0
processpl  960      410    0      379     5     0     5     5     0     8    0
procpl     624      817    0      786     4     0     4     4     0     8    0
sosppl     128        4    0        4     1     0     1     1     0     8    1
sockpl     400      871    0      853     8     0     8     8     0     8    6
mcl64k     65536     11    0        0     2     0     2     2     0     8    0
mcl16k     16384      1    0        0     1     0     1     1     0     8    0
mcl12k     12288      3    0        0     1     0     1     1     0     8    0
mcl9k      9216       2    0        0     1     0     1     1     0     8    0
mcl8k      8192       2    0        0     1     0     1     1     0     8    0
mcl4k      4096      11    0        0     2     0     2     2     0     8    0
mcl2k2     2112       1    0        0     1     0     1     1     0     8    0
mcl2k      2048     173    0        0    21     0    21    21     0     8    0
mtagpl      80       22    0        0     1     0     1     1     0     8    0
mbufpl     256      257    0        0    16     0    16    16     0     8    0
bufpl      280     4656    0      192   319     0   319   319     0     8    0
anonpl      16    55567    0    40724    86     1    85    85     0   125   16
amapchunkpl 152    2252    0     2134    13     4     9    13     0   158    2
amappl16   192     1971    0     1160    59     3    56    59     0     8    8
amappl15   184       58    0       54     1     0     1     1     0     8    0
amappl14   176       36    0       31     1     0     1     1     0     8    0
amappl13   168       86    0       84     1     0     1     1     0     8    0
amappl12   160        7    0        6     1     0     1     1     0     8    0
amappl11   152       52    0       37     1     0     1     1     0     8    0
amappl10   144       15    0        8     1     0     1     1     0     8    0
amappl9    136      685    0      681     1     0     1     1     0     8    0
amappl8    128      213    0      187     2     0     2     2     0     8    0
amappl7    120      104    0       92     1     0     1     1     0     8    0
amappl6    112       62    0       53     1     0     1     1     0     8    0
amappl5    104      131    0      117     1     0     1     1     0     8    0
amappl4     96      648    0      615     2     1     1     2     0     8    0
amappl3     88      123    0      114     1     0     1     1     0     8    0
amappl2     80     2330    0     2263     3     1     2     3     0     8    0
amappl1     72    18749    0    18309    25    15    10    20     0     8    0
amappl      80     1076    0     1036     2     0     2     2     0    84    0
dma4096    4096       1    0        1     1     1     0     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       23    0        2     1     0     1     1     0     8    0
uaddrrnd    24      396    0      380     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      396    0      380     1     0     1     1     0     8    0
vmmpekpl   168     7004    0     6969     2     0     2     2     0     8    0
vmmpepl    168    55896    0    54015   126     9   117   121     0   357   21
vmsppl     368      395    0      379     2     0     2     2     0     8    0
pdppl      4096     799    0      760     6     0     6     6     0     8    0
pvpl        32   179196    0   175987   198     0   198   198     0   265  134
pmappl     232      395    0      379     2     0     2     2     0     8    0
extentpl    40       46    0       29     1     0     1     1     0     8    0
phpool     112      184    0        3     6     0     6     6     0     8    0

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/02/07 22:26 openbsd 5185a7002a54 06150bf1 .config console log report ci-openbsd-multicore
* Struck through repros no longer work on HEAD.