fatal error: fault
[signal SIGSEGV: segmentation violation code=0x1 addr=0x7f7faf7ee000 pc=0x4709fc]

goroutine 35 [running]:
runtime.throw({0xbdc158?, 0x0?})
Jan  1 00:00:29 ci2-netbsd-kubsan-3 syslogd[700]: /var/log/messages: No space left on device
	/usr/local/go/src/runtime/panic.go:1077 +0x5c fp=0xc0006b5b58 sp=0xc0006b5b28 pc=0x43a81c
runtime.sigpanic()
	/usr/local/go/src/runtime/signal_unix.go:875 +0x285 fp=0xc0006b5bb8 sp=0xc0006b5b58 pc=0x451585
runtime.memmove()
	/usr/local/go/src/runtime/memmove_amd64.s:375 +0x43c fp=0xc0006b5bc0 sp=0xc0006b5bb8 pc=0x4709fc
github.com/google/syzkaller/pkg/ipc.(*Env).ExecProg(0xc000015300, 0x320?, {0xc000459000, 0x4cc4, 0x0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:247 +0x85 fp=0xc0006b5c50 sp=0xc0006b5bc0 pc=0xa11785
main.(*Proc).executeProgram(0xc000010558, 0xc00037a930, 0xc0006b5df0?)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:123 +0xe5 fp=0xc0006b5db8 sp=0xc0006b5c50 pc=0xa1b365
main.(*Proc).execute(0xc000010558?, 0xc00037a930, 0xc00037ef20?)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:103 +0x33 fp=0xc0006b5e00 sp=0xc0006b5db8 pc=0xa1b1b3
main.(*Proc).loop(0xc000010558)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:46 +0xcc fp=0xc0006b5fc8 sp=0xc0006b5e00 pc=0xa1aa2c
main.startProc.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:37 +0x25 fp=0xc0006b5fe0 sp=0xc0006b5fc8 pc=0xa1a925
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0006b5fe8 sp=0xc0006b5fe0 pc=0x46f7c1
created by main.startProc in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:37 +0x116

goroutine 1 [IO wait]:
runtime.gopark(0xc0005c5740?, 0xc0005c5740?, 0x7d?, 0xeb?, 0xc0005c5798?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0005c5728 sp=0xc0005c5708 pc=0x43d66e
runtime.netpollblock(0xc0003c0000?, 0x407ce6?, 0x0?)
	/usr/local/go/src/runtime/netpoll.go:564 +0xf7 fp=0xc0005c5760 sp=0xc0005c5728 pc=0x436a17
internal/poll.runtime_pollWait(0x7f7fb0fece28, 0x72)
[ 251.5896779] sockaddr_getsize_by_family: (syz-executor.4:6558:7133) Unhandled address family=0
	/usr/local/go/src/runtime/netpoll.go:343 +0x85 fp=0xc0005c5780 sp=0xc0005c5760 pc=0x469f85
internal/poll.(*pollDesc).wait(0xc000015200?, 0xc0003c0000?, 0x0)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:84 +0x27 fp=0xc0005c57a8 sp=0xc0005c5780 pc=0x4d8a07
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Read(0xc000015200, {0xc0003c0000, 0x61af4, 0x62000})
	/usr/local/go/src/internal/poll/fd_unix.go:164 +0x27a fp=0xc0005c5840 sp=0xc0005c57a8 pc=0x4d9cfa
net.(*netFD).Read(0xc000015200, {0xc0003c0000?, 0xc0000e4000?, 0x100c0000dd7c0?})
	/usr/local/go/src/net/fd_posix.go:55 +0x25 fp=0xc0005c5888 sp=0xc0005c5840 pc=0x5b8d85
net.(*conn).Read(0xc00037e500, {0xc0003c0000?, 0x100?, 0xc0?})
	/usr/local/go/src/net/net.go:179 +0x45 fp=0xc0005c58d0 sp=0xc0005c5888 pc=0x5c96a5
net.(*TCPConn).Read(0x40f82d?, {0xc0003c0000?, 0xc0005c5938?, 0x40dd4c?})
	<autogenerated>:1 +0x25 fp=0xc0005c5900 sp=0xc0005c58d0 pc=0x5d9e05
io.ReadAtLeast({0x7f7fb0fed018, 0xc00037e500}, {0xc0003c0000, 0x61af4, 0x62000}, 0x4)
	/usr/local/go/src/io/io.go:335 +0x90 fp=0xc0005c5948 sp=0xc0005c5900 pc=0x4b4a50
github.com/google/syzkaller/pkg/flatrpc.(*Conn).recv(0xc0007ca280, 0xc0003c0004?)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/flatrpc/conn.go:178 +0x1a5 fp=0xc0005c59e0 sp=0xc0005c5948 pc=0x8d4b65
github.com/google/syzkaller/pkg/flatrpc.Recv[...](0xc0007ca280)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/flatrpc/conn.go:152 +0xb3 fp=0xc0005c5a40 sp=0xc0005c59e0 pc=0xa1c6f3
main.(*FuzzerTool).handleConn(0xc00079f040)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:222 +0x36 fp=0xc0005c5ae8 sp=0xc0005c5a40 pc=0xa19536
main.main()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:162 +0xec5 fp=0xc0005c5f40 sp=0xc0005c5ae8 pc=0xa19065
runtime.main()
	/usr/local/go/src/runtime/proc.go:267 +0x2bb fp=0xc0005c5fe0 sp=0xc0005c5f40 pc=0x43d1fb
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0005c5fe8 sp=0xc0005c5fe0 pc=0x46f7c1

goroutine 2 [force gc (idle), 3 minutes]:
runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc000054fa8 sp=0xc000054f88 pc=0x43d66e
runtime.goparkunlock(...)
	/usr/local/go/src/runtime/proc.go:404
runtime.forcegchelper()
	/usr/local/go/src/runtime/proc.go:322 +0xb3 fp=0xc000054fe0 sp=0xc000054fa8 pc=0x43d4d3
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000054fe8 sp=0xc000054fe0 pc=0x46f7c1
created by runtime.init.6 in goroutine 1
	/usr/local/go/src/runtime/proc.go:310 +0x1a

goroutine 3 [GC sweep wait]:
runtime.gopark(0x1?, 0x0?, 0x0?, 0x0?, 0x0?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc000055778 sp=0xc000055758 pc=0x43d66e
runtime.goparkunlock(...)
	/usr/local/go/src/runtime/proc.go:404
runtime.bgsweep(0x0?)
	/usr/local/go/src/runtime/mgcsweep.go:321 +0xdf fp=0xc0000557c8 sp=0xc000055778 pc=0x4283bf
runtime.gcenable.func1()
	/usr/local/go/src/runtime/mgc.go:200 +0x25 fp=0xc0000557e0 sp=0xc0000557c8 pc=0x41d4a5
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000557e8 sp=0xc0000557e0 pc=0x46f7c1
created by runtime.gcenable in goroutine 1
	/usr/local/go/src/runtime/mgc.go:200 +0x66

goroutine 4 [GC scavenge wait]:
runtime.gopark(0xac6166?, 0xa8440?, 0x0?, 0x0?, 0x0?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc000055f70 sp=0xc000055f50 pc=0x43d66e
runtime.goparkunlock(...)
	/usr/local/go/src/runtime/proc.go:404
runtime.(*scavengerState).park(0x1406da0)
	/usr/local/go/src/runtime/mgcscavenge.go:425 +0x49 fp=0xc000055fa0 sp=0xc000055f70 pc=0x425c49
runtime.bgscavenge(0x0?)
	/usr/local/go/src/runtime/mgcscavenge.go:658 +0x59 fp=0xc000055fc8 sp=0xc000055fa0 pc=0x4261f9
runtime.gcenable.func2()
	/usr/local/go/src/runtime/mgc.go:201 +0x25 fp=0xc000055fe0 sp=0xc000055fc8 pc=0x41d445
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000055fe8 sp=0xc000055fe0 pc=0x46f7c1
created by runtime.gcenable in goroutine 1
	/usr/local/go/src/runtime/mgc.go:201 +0xa5

goroutine 17 [finalizer wait]:
runtime.gopark(0x0?, 0xcaad20?, 0xc0?, 0x48?, 0x2000000020?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc000054628 sp=0xc000054608 pc=0x43d66e
runtime.runfinq()
	/usr/local/go/src/runtime/mfinal.go:193 +0x107 fp=0xc0000547e0 sp=0xc000054628 pc=0x41c527
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000547e8 sp=0xc0000547e0 pc=0x46f7c1
created by runtime.createfing in goroutine 1
	/usr/local/go/src/runtime/mfinal.go:163 +0x3d

goroutine 18 [GC worker (idle)]:
runtime.gopark(0x1438640?, 0x2?, 0xb7?, 0x7d?, 0x0?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc000050750 sp=0xc000050730 pc=0x43d66e
runtime.gcBgMarkWorker()
	/usr/local/go/src/runtime/mgc.go:1293 +0xe5 fp=0xc0000507e0 sp=0xc000050750 pc=0x41f025
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000507e8 sp=0xc0000507e0 pc=0x46f7c1
created by runtime.gcBgMarkStartWorkers in goroutine 1
	/usr/local/go/src/runtime/mgc.go:1217 +0x1c

goroutine 19 [GC worker (idle)]:
runtime.gopark(0x35ac7bd1ae?, 0x2?, 0x25?, 0xa8?, 0x0?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc000050f50 sp=0xc000050f30 pc=0x43d66e
runtime.gcBgMarkWorker()
	/usr/local/go/src/runtime/mgc.go:1293 +0xe5 fp=0xc000050fe0 sp=0xc000050f50 pc=0x41f025
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000050fe8 sp=0xc000050fe0 pc=0x46f7c1
created by runtime.gcBgMarkStartWorkers in goroutine 1
	/usr/local/go/src/runtime/mgc.go:1217 +0x1c

goroutine 5 [select]:
runtime.gopark(0xc000052788?, 0x3?, 0x0?, 0x20?, 0xc000052772?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc000052618 sp=0xc0000525f8 pc=0x43d66e
runtime.selectgo(0xc000052788, 0xc00005276c, 0xc0000de780?, 0x0, 0x0?, 0x1)
	/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc000052738 sp=0xc000052618 pc=0x44dac5
go.opencensus.io/stats/view.(*worker).start(0xc0000de780)
	/syzkaller/gopath/src/github.com/google/syzkaller/vendor/go.opencensus.io/stats/view/worker.go:292 +0x9f fp=0xc0000527c8 sp=0xc000052738 pc=0x9f189f
go.opencensus.io/stats/view.init.0.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/vendor/go.opencensus.io/stats/view/worker.go:34 +0x25 fp=0xc0000527e0 sp=0xc0000527c8 pc=0x9f0bc5
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000527e8 sp=0xc0000527e0 pc=0x46f7c1
created by go.opencensus.io/stats/view.init.0 in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/vendor/go.opencensus.io/stats/view/worker.go:34 +0x8d

goroutine 7 [chan receive]:
runtime.gopark(0xc000078000?, 0xc0001ce230?, 0x20?, 0x1?, 0x8d43e0?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0001deef8 sp=0xc0001deed8 pc=0x43d66e
runtime.chanrecv(0xc000078ae0, 0xc0001defb8, 0x1)
	/usr/local/go/src/runtime/chan.go:583 +0x3cd fp=0xc0001def70 sp=0xc0001deef8 pc=0x4094ad
runtime.chanrecv2(0xc000788700?, 0x44471c?)
	/usr/local/go/src/runtime/chan.go:447 +0x12 fp=0xc0001def98 sp=0xc0001def70 pc=0x4090d2
github.com/google/syzkaller/pkg/stats.newSet.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/stats/set.go:98 +0x66 fp=0xc0001defe0 sp=0xc0001def98 pc=0x8d2f46
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0001defe8 sp=0xc0001defe0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/stats.newSet in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/stats/set.go:97 +0xe5

goroutine 21 [chan receive, 3 minutes]:
runtime.gopark(0xc000052ee0?, 0x7990c5?, 0x1?, 0xb6?, 0xc000052f58?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc000052ec8 sp=0xc000052ea8 pc=0x43d66e
runtime.chanrecv(0xc0007feae0, 0x0, 0x1)
	/usr/local/go/src/runtime/chan.go:583 +0x3cd fp=0xc000052f40 sp=0xc000052ec8 pc=0x4094ad
runtime.chanrecv1(0xc0007feae0?, 0xc000052fb0?)
	/usr/local/go/src/runtime/chan.go:442 +0x12 fp=0xc000052f68 sp=0xc000052f40 pc=0x4090b2
github.com/google/syzkaller/pkg/osutil.HandleInterrupts.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/osutil/osutil_unix.go:77 +0x85 fp=0xc000052fe0 sp=0xc000052f68 pc=0x79a025
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000052fe8 sp=0xc000052fe0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/osutil.HandleInterrupts in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/osutil/osutil_unix.go:74 +0x4f

goroutine 22 [chan receive, 3 minutes]:
runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0000536f0 sp=0xc0000536d0 pc=0x43d66e
runtime.chanrecv(0xc000092180, 0x0, 0x1)
	/usr/local/go/src/runtime/chan.go:583 +0x3cd fp=0xc000053768 sp=0xc0000536f0 pc=0x4094ad
runtime.chanrecv1(0x0?, 0x0?)
	/usr/local/go/src/runtime/chan.go:442 +0x12 fp=0xc000053790 sp=0xc000053768 pc=0x4090b2
main.main.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:76 +0x19 fp=0xc0000537e0 sp=0xc000053790 pc=0xa190b9
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000537e8 sp=0xc0000537e0 pc=0x46f7c1
created by main.main in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:74 +0x33b

goroutine 8 [select, 3 minutes, locked to thread]:
runtime.gopark(0xc0001ddfa8?, 0x2?, 0x0?, 0x0?, 0xc0001ddf94?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0001dde30 sp=0xc0001dde10 pc=0x43d66e
runtime.selectgo(0xc0001ddfa8, 0xc0001ddf90, 0x0?, 0x0, 0xc000185c70?, 0x1)
	/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc0001ddf50 sp=0xc0001dde30 pc=0x44dac5
runtime.ensureSigM.func1()
	/usr/local/go/src/runtime/signal_unix.go:1014 +0x192 fp=0xc0001ddfe0 sp=0xc0001ddf50 pc=0x4664f2
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0001ddfe8 sp=0xc0001ddfe0 pc=0x46f7c1
created by runtime.ensureSigM in goroutine 21
	/usr/local/go/src/runtime/signal_unix.go:997 +0xc8

goroutine 23 [IO wait, 3 minutes]:
runtime.gopark(0xc0001dfc10?, 0x41013d?, 0x18?, 0xfc?, 0x4df99d?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0001dfba8 sp=0xc0001dfb88 pc=0x43d66e
runtime.netpollblock(0x7f7fb132b7a8?, 0x407ce6?, 0x0?)
	/usr/local/go/src/runtime/netpoll.go:564 +0xf7 fp=0xc0001dfbe0 sp=0xc0001dfba8 pc=0x436a17
internal/poll.runtime_pollWait(0x7f7fb0fec950, 0x72)
	/usr/local/go/src/runtime/netpoll.go:343 +0x85 fp=0xc0001dfc00 sp=0xc0001dfbe0 pc=0x469f85
internal/poll.(*pollDesc).wait(0xc0006fc000?, 0xc0001dfce8?, 0x0)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:84 +0x27 fp=0xc0001dfc28 sp=0xc0001dfc00 pc=0x4d8a07
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Accept(0xc0006fc000)
	/usr/local/go/src/internal/poll/fd_unix.go:611 +0x2ac fp=0xc0001dfcd0 sp=0xc0001dfc28 pc=0x4ddeec
net.(*netFD).accept(0xc0006fc000)
	/usr/local/go/src/net/fd_unix.go:172 +0x29 fp=0xc0001dfd88 sp=0xc0001dfcd0 pc=0x5bada9
net.(*TCPListener).accept(0xc0001a0000)
	/usr/local/go/src/net/tcpsock_posix.go:152 +0x1e fp=0xc0001dfdb0 sp=0xc0001dfd88 pc=0x5d16de
net.(*TCPListener).Accept(0xc0001a0000)
	/usr/local/go/src/net/tcpsock.go:315 +0x30 fp=0xc0001dfde0 sp=0xc0001dfdb0 pc=0x5d08d0
net/http.(*onceCloseListener).Accept(0xd67f30?)
	<autogenerated>:1 +0x24 fp=0xc0001dfdf8 sp=0xc0001dfde0 pc=0x6f1bc4
net/http.(*Server).Serve(0xc000020000, {0xd67000, 0xc0001a0000})
	/usr/local/go/src/net/http/server.go:3056 +0x364 fp=0xc0001dff28 sp=0xc0001dfdf8 pc=0x6cf864
net/http.(*Server).ListenAndServe(0xc000020000)
	/usr/local/go/src/net/http/server.go:2985 +0x71 fp=0xc0001dff58 sp=0xc0001dff28 pc=0x6cf4d1
net/http.ListenAndServe(...)
	/usr/local/go/src/net/http/server.go:3239
main.setupPprofHandler.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:284 +0x9d fp=0xc0001dffe0 sp=0xc0001dff58 pc=0xa1a4bd
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0001dffe8 sp=0xc0001dffe0 pc=0x46f7c1
created by main.setupPprofHandler in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:283 +0x37

goroutine 9 [syscall, 3 minutes]:
runtime.notetsleepg(0xc000253228?, 0x6f659f?)
	/usr/local/go/src/runtime/lock_sema.go:294 +0x29 fp=0xc000184fa0 sp=0xc000184f58 pc=0x40ea69
os/signal.signal_recv()
	/usr/local/go/src/runtime/sigqueue.go:152 +0x29 fp=0xc000184fc0 sp=0xc000184fa0 pc=0x46bf29
os/signal.loop()
	/usr/local/go/src/os/signal/signal_unix.go:23 +0x13 fp=0xc000184fe0 sp=0xc000184fc0 pc=0x7993f3
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000184fe8 sp=0xc000184fe0 pc=0x46f7c1
created by os/signal.Notify.func1.1 in goroutine 21
	/usr/local/go/src/os/signal/signal.go:151 +0x1f

goroutine 36 [chan receive]:
runtime.gopark(0xc0006b3968?, 0xc0006b3998?, 0x25?, 0x38?, 0xc000188400?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0006b3978 sp=0xc0006b3958 pc=0x43d66e
runtime.chanrecv(0xc00067c1e0, 0xc0006b3b38, 0x1)
	/usr/local/go/src/runtime/chan.go:583 +0x3cd fp=0xc0006b39f0 sp=0xc0006b3978 pc=0x4094ad
runtime.chanrecv1(0xc0005329c0?, 0xd652a8?)
	/usr/local/go/src/runtime/chan.go:442 +0x12 fp=0xc0006b3a18 sp=0xc0006b39f0 pc=0x4090b2
github.com/google/syzkaller/pkg/ipc.(*command).exec(0xc000015180, 0xc000760648?)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:801 +0x698 fp=0xc0006b3bc0 sp=0xc0006b3a18 pc=0xa156d8
github.com/google/syzkaller/pkg/ipc.(*Env).ExecProg(0xc000015380, 0x23a?, {0xc000679600, 0x2b0, 0x0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:260 +0x10c fp=0xc0006b3c50 sp=0xc0006b3bc0 pc=0xa1180c
main.(*Proc).executeProgram(0xc000010570, 0xc0007a6b60, 0xc0006b3df0?)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:123 +0xe5 fp=0xc0006b3db8 sp=0xc0006b3c50 pc=0xa1b365
main.(*Proc).execute(0xc000010570?, 0xc0007a6b60, 0xc0001883c8?)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:103 +0x33 fp=0xc0006b3e00 sp=0xc0006b3db8 pc=0xa1b1b3
main.(*Proc).loop(0xc000010570)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:46 +0xcc fp=0xc0006b3fc8 sp=0xc0006b3e00 pc=0xa1aa2c
main.startProc.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:37 +0x25 fp=0xc0006b3fe0 sp=0xc0006b3fc8 pc=0xa1a925
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0006b3fe8 sp=0xc0006b3fe0 pc=0x46f7c1
created by main.startProc in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:37 +0x116

goroutine 39 [IO wait]:
runtime.gopark(0xc0005c7890?, 0xc0005c7890?, 0x7d?, 0xeb?, 0xc0005c78e8?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0005c7878 sp=0xc0005c7858 pc=0x43d66e
runtime.netpollblock(0xc000012164?, 0x407ce6?, 0x0?)
	/usr/local/go/src/runtime/netpoll.go:564 +0xf7 fp=0xc0005c78b0 sp=0xc0005c7878 pc=0x436a17
internal/poll.runtime_pollWait(0x7f7fb0fec288, 0x72)
	/usr/local/go/src/runtime/netpoll.go:343 +0x85 fp=0xc0005c78d0 sp=0xc0005c78b0 pc=0x469f85
internal/poll.(*pollDesc).wait(0xc0004d8300?, 0xc000012164?, 0x1)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:84 +0x27 fp=0xc0005c78f8 sp=0xc0005c78d0 pc=0x4d8a07
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Read(0xc0004d8300, {0xc000012164, 0xc, 0xc})
	/usr/local/go/src/internal/poll/fd_unix.go:164 +0x27a fp=0xc0005c7990 sp=0xc0005c78f8 pc=0x4d9cfa
os.(*File).read(...)
	/usr/local/go/src/os/file_posix.go:29
os.(*File).Read(0xc00037eb50, {0xc000012164?, 0xc0005c7a08?, 0x410365?})
	/usr/local/go/src/os/file.go:118 +0x52 fp=0xc0005c79d0 sp=0xc0005c7990 pc=0x4e3ad2
io.ReadAtLeast({0xd5f300, 0xc00037eb50}, {0xc000012164, 0xc, 0xc}, 0xc)
	/usr/local/go/src/io/io.go:335 +0x90 fp=0xc0005c7a18 sp=0xc0005c79d0 pc=0x4b4a50
io.ReadFull(...)
	/usr/local/go/src/io/io.go:354
github.com/google/syzkaller/pkg/ipc.(*command).exec(0xc0006fd700, 0xc000039ab8?)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:769 +0x3c5 fp=0xc0005c7bc0 sp=0xc0005c7a18 pc=0xa15405
github.com/google/syzkaller/pkg/ipc.(*Env).ExecProg(0xc000015500, 0x25d?, {0xc0008e2000, 0x28bf, 0x0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:260 +0x10c fp=0xc0005c7c50 sp=0xc0005c7bc0 pc=0xa1180c
main.(*Proc).executeProgram(0xc0000105b8, 0xc0000fce70, 0xc0005c7df0?)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:123 +0xe5 fp=0xc0005c7db8 sp=0xc0005c7c50 pc=0xa1b365
main.(*Proc).execute(0xc0000105b8?, 0xc0000fce70, 0xc00037eab0?)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:103 +0x33 fp=0xc0005c7e00 sp=0xc0005c7db8 pc=0xa1b1b3
main.(*Proc).loop(0xc0000105b8)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:46 +0xcc fp=0xc0005c7fc8 sp=0xc0005c7e00 pc=0xa1aa2c
main.startProc.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:37 +0x25 fp=0xc0005c7fe0 sp=0xc0005c7fc8 pc=0xa1a925
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0005c7fe8 sp=0xc0005c7fe0 pc=0x46f7c1
created by main.startProc in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:37 +0x116

goroutine 37 [chan receive, 2 minutes]:
runtime.gopark(0x0?, 0xc0006af998?, 0x25?, 0x38?, 0x0?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0006af978 sp=0xc0006af958 pc=0x43d66e
runtime.chanrecv(0xc00067cd80, 0xc0006afb38, 0x1)
	/usr/local/go/src/runtime/chan.go:583 +0x3cd fp=0xc0006af9f0 sp=0xc0006af978 pc=0x4094ad
runtime.chanrecv1(0xc00014ea20?, 0xd652a8?)
	/usr/local/go/src/runtime/chan.go:442 +0x12 fp=0xc0006afa18 sp=0xc0006af9f0 pc=0x4090b2
github.com/google/syzkaller/pkg/ipc.(*command).exec(0xc000014580, 0xc0000cc360?)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:801 +0x698 fp=0xc0006afbc0 sp=0xc0006afa18 pc=0xa156d8
github.com/google/syzkaller/pkg/ipc.(*Env).ExecProg(0xc000015400, 0x125?, {0xc0007a0380, 0x37b, 0x0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:260 +0x10c fp=0xc0006afc50 sp=0xc0006afbc0 pc=0xa1180c
main.(*Proc).executeProgram(0xc000010588, 0xc0007a60e0, 0xc0006afdf0?)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:123 +0xe5 fp=0xc0006afdb8 sp=0xc0006afc50 pc=0xa1b365
main.(*Proc).execute(0xc000010588?, 0xc0007a60e0, 0xc0001882d8?)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:103 +0x33 fp=0xc0006afe00 sp=0xc0006afdb8 pc=0xa1b1b3
main.(*Proc).loop(0xc000010588)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:46 +0xcc fp=0xc0006affc8 sp=0xc0006afe00 pc=0xa1aa2c
main.startProc.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:37 +0x25 fp=0xc0006affe0 sp=0xc0006affc8 pc=0xa1a925
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0006affe8 sp=0xc0006affe0 pc=0x46f7c1
created by main.startProc in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:37 +0x116

goroutine 34 [select]:
runtime.gopark(0xc0005c9978?, 0x2?, 0x20?, 0x67?, 0xc0005c991c?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0005c97c0 sp=0xc0005c97a0 pc=0x43d66e
runtime.selectgo(0xc0005c9978, 0xc0005c9918, 0x20?, 0x0, 0x41d020?, 0x1)
	/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc0005c98e0 sp=0xc0005c97c0 pc=0x44dac5
github.com/google/syzkaller/pkg/ipc.(*command).handshake(0xc000015b80)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:705 +0x1d3 fp=0xc0005c99a8 sp=0xc0005c98e0 pc=0xa14c73
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand(0xc000015280, 0xc000761458, {0xbda86e?, 0x0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:653 +0xc52 fp=0xc0005c9c20 sp=0xc0005c99a8 pc=0xa14352
github.com/google/syzkaller/pkg/ipc.(*Env).RestartIfNeeded(0xc000015280, 0xc000761458)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:313 +0xce fp=0xc0005c9c50 sp=0xc0005c9c20 pc=0xa11ace
main.(*Proc).executeProgram(0xc000010540, 0xc00037a700, 0xc0005c9df0?)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:120 +0x6f fp=0xc0005c9db8 sp=0xc0005c9c50 pc=0xa1b2ef
main.(*Proc).execute(0xc000010540?, 0xc00037a700, 0xc000188a60?)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:103 +0x33 fp=0xc0005c9e00 sp=0xc0005c9db8 pc=0xa1b1b3
main.(*Proc).loop(0xc000010540)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:46 +0xcc fp=0xc0005c9fc8 sp=0xc0005c9e00 pc=0xa1aa2c
main.startProc.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:37 +0x25 fp=0xc0005c9fe0 sp=0xc0005c9fc8 pc=0xa1a925
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0005c9fe8 sp=0xc0005c9fe0 pc=0x46f7c1
created by main.startProc in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:37 +0x116

goroutine 38 [IO wait]:
runtime.gopark(0xc0005c3890?, 0xc0005c3890?, 0x7d?, 0xeb?, 0xc0005c38e8?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0005c3878 sp=0xc0005c3858 pc=0x43d66e
runtime.netpollblock(0xc0007c2fc0?, 0x407ce6?, 0x0?)
	/usr/local/go/src/runtime/netpoll.go:564 +0xf7 fp=0xc0005c38b0 sp=0xc0005c3878 pc=0x436a17
internal/poll.runtime_pollWait(0x7f7fb0fec858, 0x72)
	/usr/local/go/src/runtime/netpoll.go:343 +0x85 fp=0xc0005c38d0 sp=0xc0005c38b0 pc=0x469f85
internal/poll.(*pollDesc).wait(0xc0005ce960?, 0xc0007c2fc0?, 0x1)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:84 +0x27 fp=0xc0005c38f8 sp=0xc0005c38d0 pc=0x4d8a07
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Read(0xc0005ce960, {0xc0007c2fc0, 0xc, 0xc})
	/usr/local/go/src/internal/poll/fd_unix.go:164 +0x27a fp=0xc0005c3990 sp=0xc0005c38f8 pc=0x4d9cfa
os.(*File).read(...)
	/usr/local/go/src/os/file_posix.go:29
os.(*File).Read(0xc00037ee90, {0xc0007c2fc0?, 0xc0005c3a08?, 0x410365?})
	/usr/local/go/src/os/file.go:118 +0x52 fp=0xc0005c39d0 sp=0xc0005c3990 pc=0x4e3ad2
io.ReadAtLeast({0xd5f300, 0xc00037ee90}, {0xc0007c2fc0, 0xc, 0xc}, 0xc)
	/usr/local/go/src/io/io.go:335 +0x90 fp=0xc0005c3a18 sp=0xc0005c39d0 pc=0x4b4a50
io.ReadFull(...)
	/usr/local/go/src/io/io.go:354
github.com/google/syzkaller/pkg/ipc.(*command).exec(0xc0004e0b00, 0xc0000cdaa0?)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:769 +0x3c5 fp=0xc0005c3bc0 sp=0xc0005c3a18 pc=0xa15405
github.com/google/syzkaller/pkg/ipc.(*Env).ExecProg(0xc000015480, 0x31f?, {0xc000755100, 0x676, 0x0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:260 +0x10c fp=0xc0005c3c50 sp=0xc0005c3bc0 pc=0xa1180c
main.(*Proc).executeProgram(0xc0000105a0, 0xc000156d90, 0xc0005c3df0?)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:123 +0xe5 fp=0xc0005c3db8 sp=0xc0005c3c50 pc=0xa1b365
main.(*Proc).execute(0xc0000105a0?, 0xc000156d90, 0xc000188b50?)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:103 +0x33 fp=0xc0005c3e00 sp=0xc0005c3db8 pc=0xa1b1b3
main.(*Proc).loop(0xc0000105a0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:46 +0xcc fp=0xc0005c3fc8 sp=0xc0005c3e00 pc=0xa1aa2c
main.startProc.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:37 +0x25 fp=0xc0005c3fe0 sp=0xc0005c3fc8 pc=0xa1a925
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0005c3fe8 sp=0xc0005c3fe0 pc=0x46f7c1
created by main.startProc in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:37 +0x116

goroutine 931 [IO wait]:
runtime.gopark(0xc000182e18?, 0xc000182e18?, 0x7d?, 0xeb?, 0xc000182e70?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc000182e00 sp=0xc000182de0 pc=0x43d66e
runtime.netpollblock(0xc000800000?, 0x407ce6?, 0x0?)
	/usr/local/go/src/runtime/netpoll.go:564 +0xf7 fp=0xc000182e38 sp=0xc000182e00 pc=0x436a17
internal/poll.runtime_pollWait(0x7f7fb0fec190, 0x72)
	/usr/local/go/src/runtime/netpoll.go:343 +0x85 fp=0xc000182e58 sp=0xc000182e38 pc=0x469f85
internal/poll.(*pollDesc).wait(0xc0005cff80?, 0xc000800000?, 0x1)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:84 +0x27 fp=0xc000182e80 sp=0xc000182e58 pc=0x4d8a07
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Read(0xc0005cff80, {0xc000800000, 0x20000, 0x20000})
	/usr/local/go/src/internal/poll/fd_unix.go:164 +0x27a fp=0xc000182f18 sp=0xc000182e80 pc=0x4d9cfa
os.(*File).read(...)
	/usr/local/go/src/os/file_posix.go:29
os.(*File).Read(0xc0001883f0, {0xc000800000?, 0x4c9fcf?, 0xc000182fb8?})
	/usr/local/go/src/os/file.go:118 +0x52 fp=0xc000182f58 sp=0xc000182f18 pc=0x4e3ad2
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func2(0xc000015180)
Jan  1 00:00:29 ci2-netbsd-kubsan-3 syslogd[700]: /var/log/messages: No space left on device
Jan  1 00:00:30 ?uE&k,6% E9Bo:z init: getty repeating too quickly on port `/dev/constty', sleeping
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:617 +0x89 fp=0xc000182fc8 sp=0xc000182f58 pc=0xa146c9
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func7()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:632 +0x27 fp=0xc000182fe0 sp=0xc000182fc8 pc=0xa14607
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000182fe8 sp=0xc000182fe0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand in goroutine 36
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:611 +0xa05

goroutine 1184 [syscall]:
syscall.Syscall6(0x1e1, 0x1, 0x169f, 0xc00005766c, 0x10020, 0x0, 0x0)
	/usr/local/go/src/syscall/asm_unix_amd64.s:39 +0x9 fp=0xc000057618 sp=0xc000057608 pc=0x4beba9
os.wait6(0xc0007c0b60?, 0x408b00?, 0xc0007c0b60?)
	/usr/local/go/src/os/wait6_netbsd.go:16 +0x4c fp=0xc000057688 sp=0xc000057618 pc=0x4e910c
os.(*Process).blockUntilWaitable(0xc000532e40)
	/usr/local/go/src/os/wait_wait6.go:20 +0x30 fp=0xc0000576b8 sp=0xc000057688 pc=0x4e9190
os.(*Process).wait(0xc000532e40)
	/usr/local/go/src/os/exec_unix.go:22 +0x25 fp=0xc000057718 sp=0xc0000576b8 pc=0x4e3345
os.(*Process).Wait(...)
	/usr/local/go/src/os/exec.go:134
os/exec.(*Cmd).Wait(0xc0006b6420)
	/usr/local/go/src/os/exec/exec.go:890 +0x45 fp=0xc000057780 sp=0xc000057718 pc=0x795f05
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func3(0xc0004e0b00)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:640 +0x28 fp=0xc0000577c8 sp=0xc000057780 pc=0xa14568
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func8()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:645 +0x27 fp=0xc0000577e0 sp=0xc0000577c8 pc=0xa14507
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000577e8 sp=0xc0000577e0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand in goroutine 38
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:639 +0xc0d

goroutine 983 [syscall]:
syscall.Syscall6(0x1e1, 0x1, 0x16b2, 0xc00018366c, 0x10020, 0x0, 0x0)
	/usr/local/go/src/syscall/asm_unix_amd64.s:39 +0x9 fp=0xc000183618 sp=0xc000183608 pc=0x4beba9
os.wait6(0xc0007c0820?, 0x408b00?, 0xc0007c0820?)
	/usr/local/go/src/os/wait6_netbsd.go:16 +0x4c fp=0xc000183688 sp=0xc000183618 pc=0x4e910c
os.(*Process).blockUntilWaitable(0xc0005333e0)
	/usr/local/go/src/os/wait_wait6.go:20 +0x30 fp=0xc0001836b8 sp=0xc000183688 pc=0x4e9190
os.(*Process).wait(0xc0005333e0)
	/usr/local/go/src/os/exec_unix.go:22 +0x25 fp=0xc000183718 sp=0xc0001836b8 pc=0x4e3345
os.(*Process).Wait(...)
	/usr/local/go/src/os/exec.go:134
os/exec.(*Cmd).Wait(0xc0006b6c60)
	/usr/local/go/src/os/exec/exec.go:890 +0x45 fp=0xc000183780 sp=0xc000183718 pc=0x795f05
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func3(0xc0006fd700)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:640 +0x28 fp=0xc0001837c8 sp=0xc000183780 pc=0xa14568
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func8()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:645 +0x27 fp=0xc0001837e0 sp=0xc0001837c8 pc=0xa14507
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0001837e8 sp=0xc0001837e0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand in goroutine 39
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:639 +0xc0d

goroutine 948 [chan send]:
runtime.gopark(0x0?, 0xc0001846d8?, 0x25?, 0x38?, 0x0?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0001846b8 sp=0xc000184698 pc=0x43d66e
runtime.chansend(0xc00014f9e0, 0xd538b0, 0x1, 0xc000184730?)
	/usr/local/go/src/runtime/chan.go:259 +0x3a5 fp=0xc000184728 sp=0xc0001846b8 pc=0x408745
runtime.chansend1(0xc0001847b0?, 0xd652a8?)
	/usr/local/go/src/runtime/chan.go:145 +0x17 fp=0xc000184758 sp=0xc000184728 pc=0x408397
github.com/google/syzkaller/pkg/ipc.(*command).exec.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:757 +0xdc fp=0xc0001847e0 sp=0xc000184758 pc=0xa15b5c
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0001847e8 sp=0xc0001847e0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*command).exec in goroutine 36
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:752 +0x2f9

goroutine 507 [chan send, 2 minutes]:
runtime.gopark(0x2?, 0x0?, 0x8e?, 0xb?, 0xc000079600?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc000057eb8 sp=0xc000057e98 pc=0x43d66e
runtime.chansend(0xc00014ea80, 0xd5c7b0, 0x1, 0xc0001ce698?)
	/usr/local/go/src/runtime/chan.go:259 +0x3a5 fp=0xc000057f28 sp=0xc000057eb8 pc=0x408745
runtime.chansend1(0xc000057fb0?, 0xc000057f88?)
	/usr/local/go/src/runtime/chan.go:145 +0x17 fp=0xc000057f58 sp=0xc000057f28 pc=0x408397
github.com/google/syzkaller/pkg/ipc.(*command).exec.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:760 +0xa5 fp=0xc000057fe0 sp=0xc000057f58 pc=0xa15b25
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000057fe8 sp=0xc000057fe0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*command).exec in goroutine 37
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:752 +0x2f9

goroutine 499 [syscall, 2 minutes]:
syscall.Syscall6(0x1e1, 0x1, 0x64b, 0xc00005166c, 0x10020, 0x0, 0x0)
	/usr/local/go/src/syscall/asm_unix_amd64.s:39 +0x9 fp=0xc000051618 sp=0xc000051608 pc=0x4beba9
os.wait6(0xc0007c09c0?, 0x408b00?, 0xc0007c09c0?)
	/usr/local/go/src/os/wait6_netbsd.go:16 +0x4c fp=0xc000051688 sp=0xc000051618 pc=0x4e910c
os.(*Process).blockUntilWaitable(0xc000532840)
	/usr/local/go/src/os/wait_wait6.go:20 +0x30 fp=0xc0000516b8 sp=0xc000051688 pc=0x4e9190
os.(*Process).wait(0xc000532840)
	/usr/local/go/src/os/exec_unix.go:22 +0x25 fp=0xc000051718 sp=0xc0000516b8 pc=0x4e3345
os.(*Process).Wait(...)
	/usr/local/go/src/os/exec.go:134
os/exec.(*Cmd).Wait(0xc0006b6580)
	/usr/local/go/src/os/exec/exec.go:890 +0x45 fp=0xc000051780 sp=0xc000051718 pc=0x795f05
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func3(0xc000014580)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:640 +0x28 fp=0xc0000517c8 sp=0xc000051780 pc=0xa14568
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func8()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:645 +0x27 fp=0xc0000517e0 sp=0xc0000517c8 pc=0xa14507
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000517e8 sp=0xc0000517e0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand in goroutine 37
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:639 +0xc0d

goroutine 1187 [syscall]:
syscall.Syscall6(0x1e1, 0x1, 0x1e5a, 0xc0004f166c, 0x10020, 0x0, 0x0)
	/usr/local/go/src/syscall/asm_unix_amd64.s:39 +0x9 fp=0xc0004f1618 sp=0xc0004f1608 pc=0x4beba9
os.wait6(0xc0007c0b60?, 0x408b00?, 0xc0007c0b60?)
	/usr/local/go/src/os/wait6_netbsd.go:16 +0x4c fp=0xc0004f1688 sp=0xc0004f1618 pc=0x4e910c
os.(*Process).blockUntilWaitable(0xc00003b1d0)
	/usr/local/go/src/os/wait_wait6.go:20 +0x30 fp=0xc0004f16b8 sp=0xc0004f1688 pc=0x4e9190
os.(*Process).wait(0xc00003b1d0)
	/usr/local/go/src/os/exec_unix.go:22 +0x25 fp=0xc0004f1718 sp=0xc0004f16b8 pc=0x4e3345
os.(*Process).Wait(...)
	/usr/local/go/src/os/exec.go:134
os/exec.(*Cmd).Wait(0xc0007ec840)
	/usr/local/go/src/os/exec/exec.go:890 +0x45 fp=0xc0004f1780 sp=0xc0004f1718 pc=0x795f05
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func3(0xc000015b80)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:640 +0x28 fp=0xc0004f17c8 sp=0xc0004f1780 pc=0xa14568
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func8()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:645 +0x27 fp=0xc0004f17e0 sp=0xc0004f17c8 pc=0xa14507
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0004f17e8 sp=0xc0004f17e0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand in goroutine 34
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:639 +0xc0d

goroutine 498 [IO wait, 2 minutes]:
runtime.gopark(0xc0004f1e18?, 0xc0004f1e18?, 0x7d?, 0xeb?, 0xc0004f1e70?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0004f1e00 sp=0xc0004f1de0 pc=0x43d66e
runtime.netpollblock(0xc000837af5?, 0x407ce6?, 0x0?)
	/usr/local/go/src/runtime/netpoll.go:564 +0xf7 fp=0xc0004f1e38 sp=0xc0004f1e00 pc=0x436a17
internal/poll.runtime_pollWait(0x7f7fb0fec478, 0x72)
	/usr/local/go/src/runtime/netpoll.go:343 +0x85 fp=0xc0004f1e58 sp=0xc0004f1e38 pc=0x469f85
internal/poll.(*pollDesc).wait(0xc00067cb40?, 0xc000837af5?, 0x1)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:84 +0x27 fp=0xc0004f1e80 sp=0xc0004f1e58 pc=0x4d8a07
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Read(0xc00067cb40, {0xc000837af5, 0x850b, 0x850b})
	/usr/local/go/src/internal/poll/fd_unix.go:164 +0x27a fp=0xc0004f1f18 sp=0xc0004f1e80 pc=0x4d9cfa
os.(*File).read(...)
	/usr/local/go/src/os/file_posix.go:29
os.(*File).Read(0xc000188188, {0xc000837af5?, 0x4c9fcf?, 0xc0004f1fb8?})
	/usr/local/go/src/os/file.go:118 +0x52 fp=0xc0004f1f58 sp=0xc0004f1f18 pc=0x4e3ad2
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func2(0xc000014580)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:617 +0x89 fp=0xc0004f1fc8 sp=0xc0004f1f58 pc=0xa146c9
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func7()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:632 +0x27 fp=0xc0004f1fe0 sp=0xc0004f1fc8 pc=0xa14607
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0004f1fe8 sp=0xc0004f1fe0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand in goroutine 37
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:611 +0xa05

goroutine 1183 [IO wait]:
runtime.gopark(0xc000180618?, 0xc000180618?, 0x7d?, 0xeb?, 0xc000180670?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc000180600 sp=0xc0001805e0 pc=0x43d66e
runtime.netpollblock(0xc0009a4000?, 0x407ce6?, 0x0?)
	/usr/local/go/src/runtime/netpoll.go:564 +0xf7 fp=0xc000180638 sp=0xc000180600 pc=0x436a17
internal/poll.runtime_pollWait(0x7f7fb0fecc38, 0x72)
	/usr/local/go/src/runtime/netpoll.go:343 +0x85 fp=0xc000180658 sp=0xc000180638 pc=0x469f85
internal/poll.(*pollDesc).wait(0xc0005ce8a0?, 0xc0009a4000?, 0x1)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:84 +0x27 fp=0xc000180680 sp=0xc000180658 pc=0x4d8a07
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Read(0xc0005ce8a0, {0xc0009a4000, 0x20000, 0x20000})
	/usr/local/go/src/internal/poll/fd_unix.go:164 +0x27a fp=0xc000180718 sp=0xc000180680 pc=0x4d9cfa
os.(*File).read(...)
	/usr/local/go/src/os/file_posix.go:29
os.(*File).Read(0xc00037ee80, {0xc0009a4000?, 0x4c9fcf?, 0xc0001807b8?})
	/usr/local/go/src/os/file.go:118 +0x52 fp=0xc000180758 sp=0xc000180718 pc=0x4e3ad2
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func2(0xc0004e0b00)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:617 +0x89 fp=0xc0001807c8 sp=0xc000180758 pc=0xa146c9
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func7()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:632 +0x27 fp=0xc0001807e0 sp=0xc0001807c8 pc=0xa14607
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0001807e8 sp=0xc0001807e0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand in goroutine 38
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:611 +0xa05

goroutine 1195 [select]:
runtime.gopark(0xc000185fb0?, 0x2?, 0xc0?, 0x69?, 0xc000185f8c?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc000185e38 sp=0xc000185e18 pc=0x43d66e
runtime.selectgo(0xc000185fb0, 0xc000185f88, 0xc000012cd8?, 0x0, 0x4?, 0x1)
	/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc000185f58 sp=0xc000185e38 pc=0x44dac5
github.com/google/syzkaller/pkg/ipc.(*command).exec.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:754 +0x77 fp=0xc000185fe0 sp=0xc000185f58 pc=0xa15af7
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000185fe8 sp=0xc000185fe0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*command).exec in goroutine 38
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:752 +0x2f9

goroutine 1185 [IO wait]:
[ 252.2996823] uhub4: device problem, disabling port 1
runtime.gopark(0xc0004ed618?, 0xc0004ed618?, 0x7d?, 0xeb?, 0xc0004ed670?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0004ed600 sp=0xc0004ed5e0 pc=0x43d66e
runtime.netpollblock(0xc0008ea000?, 0x407ce6?, 0x0?)
	/usr/local/go/src/runtime/netpoll.go:564 +0xf7 fp=0xc0004ed638 sp=0xc0004ed600 pc=0x436a17
internal/poll.runtime_pollWait(0x7f7fb0fec570, 0x72)
	/usr/local/go/src/runtime/netpoll.go:343 +0x85 fp=0xc0004ed658 sp=0xc0004ed638 pc=0x469f85
internal/poll.(*pollDesc).wait(0xc0006a6300?, 0xc0008ea000?, 0x1)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:84 +0x27 fp=0xc0004ed680 sp=0xc0004ed658 pc=0x4d8a07
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Read(0xc0006a6300, {0xc0008ea000, 0x20000, 0x20000})
	/usr/local/go/src/internal/poll/fd_unix.go:164 +0x27a fp=0xc0004ed718 sp=0xc0004ed680 pc=0x4d9cfa
os.(*File).read(...)
	/usr/local/go/src/os/file_posix.go:29
os.(*File).Read(0xc000188a70, {0xc0008ea000?, 0x4c9fcf?, 0xc0004ed7b8?})
	/usr/local/go/src/os/file.go:118 +0x52 fp=0xc0004ed758 sp=0xc0004ed718 pc=0x4e3ad2
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func2(0xc000015b80)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:617 +0x89 fp=0xc0004ed7c8 sp=0xc0004ed758 pc=0xa146c9
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func7()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:632 +0x27 fp=0xc0004ed7e0 sp=0xc0004ed7c8 pc=0xa14607
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0004ed7e8 sp=0xc0004ed7e0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand in goroutine 34
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:611 +0xa05

goroutine 1011 [select]:
runtime.gopark(0xc0004edfb0?, 0x2?, 0x0?, 0x8c?, 0xc0004edf8c?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0004ede38 sp=0xc0004ede18 pc=0x43d66e
runtime.selectgo(0xc0004edfb0, 0xc0004edf88, 0xc000012978?, 0x0, 0x4?, 0x1)
	/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc0004edf58 sp=0xc0004ede38 pc=0x44dac5
github.com/google/syzkaller/pkg/ipc.(*command).exec.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:754 +0x77 fp=0xc0004edfe0 sp=0xc0004edf58 pc=0xa15af7
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0004edfe8 sp=0xc0004edfe0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*command).exec in goroutine 39
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:752 +0x2f9

goroutine 992 [IO wait]:
runtime.gopark(0xc0004ee618?, 0xc0004ee618?, 0x7d?, 0xeb?, 0xc0004ee670?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0004ee600 sp=0xc0004ee5e0 pc=0x43d66e
runtime.netpollblock(0xc000380d26?, 0x407ce6?, 0x0?)
	/usr/local/go/src/runtime/netpoll.go:564 +0xf7 fp=0xc0004ee638 sp=0xc0004ee600 pc=0x436a17
internal/poll.runtime_pollWait(0x7f7fb0fecd30, 0x72)
	/usr/local/go/src/runtime/netpoll.go:343 +0x85 fp=0xc0004ee658 sp=0xc0004ee638 pc=0x469f85
internal/poll.(*pollDesc).wait(0xc0004d81e0?, 0xc000380d26?, 0x1)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:84 +0x27 fp=0xc0004ee680 sp=0xc0004ee658 pc=0x4d8a07
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Read(0xc0004d81e0, {0xc000380d26, 0x1f2da, 0x1f2da})
	/usr/local/go/src/internal/poll/fd_unix.go:164 +0x27a fp=0xc0004ee718 sp=0xc0004ee680 pc=0x4d9cfa
os.(*File).read(...)
	/usr/local/go/src/os/file_posix.go:29
os.(*File).Read(0xc00037e468, {0xc000380d26?, 0x4c9fcf?, 0xc0004ee7b8?})
	/usr/local/go/src/os/file.go:118 +0x52 fp=0xc0004ee758 sp=0xc0004ee718 pc=0x4e3ad2
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func2(0xc0006fc200)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:617 +0x89 fp=0xc0004ee7c8 sp=0xc0004ee758 pc=0xa146c9
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func7()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:632 +0x27 fp=0xc0004ee7e0 sp=0xc0004ee7c8 pc=0xa14607
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0004ee7e8 sp=0xc0004ee7e0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand in goroutine 35
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:611 +0xa05

goroutine 982 [IO wait]:
runtime.gopark(0xc0004f0e18?, 0xc0004f0e18?, 0x7d?, 0xeb?, 0xc0004f0e70?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0004f0e00 sp=0xc0004f0de0 pc=0x43d66e
runtime.netpollblock(0xc0009e4000?, 0x407ce6?, 0x0?)
	/usr/local/go/src/runtime/netpoll.go:564 +0xf7 fp=0xc0004f0e38 sp=0xc0004f0e00 pc=0x436a17
internal/poll.runtime_pollWait(0x7f7fb0fecb40, 0x72)
	/usr/local/go/src/runtime/netpoll.go:343 +0x85 fp=0xc0004f0e58 sp=0xc0004f0e38 pc=0x469f85
internal/poll.(*pollDesc).wait(0xc0004d8240?, 0xc0009e4000?, 0x1)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:84 +0x27 fp=0xc0004f0e80 sp=0xc0004f0e58 pc=0x4d8a07
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Read(0xc0004d8240, {0xc0009e4000, 0x20000, 0x20000})
	/usr/local/go/src/internal/poll/fd_unix.go:164 +0x27a fp=0xc0004f0f18 sp=0xc0004f0e80 pc=0x4d9cfa
os.(*File).read(...)
	/usr/local/go/src/os/file_posix.go:29
os.(*File).Read(0xc00037eb40, {0xc0009e4000?, 0x4c9fcf?, 0xc0004f0fb8?})
	/usr/local/go/src/os/file.go:118 +0x52 fp=0xc0004f0f58 sp=0xc0004f0f18 pc=0x4e3ad2
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func2(0xc0006fd700)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:617 +0x89 fp=0xc0004f0fc8 sp=0xc0004f0f58 pc=0xa146c9
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func7()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:632 +0x27 fp=0xc0004f0fe0 sp=0xc0004f0fc8 pc=0xa14607
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0004f0fe8 sp=0xc0004f0fe0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand in goroutine 39
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:611 +0xa05

goroutine 1009 [syscall]:
syscall.Syscall6(0x1e1, 0x1, 0x12f4, 0xc00033a66c, 0x10020, 0x0, 0x0)
	/usr/local/go/src/syscall/asm_unix_amd64.s:39 +0x9 fp=0xc00033a618 sp=0xc00033a608 pc=0x4beba9
os.wait6(0xc0000e5000?, 0x43d66e?, 0x0?)
	/usr/local/go/src/os/wait6_netbsd.go:16 +0x4c fp=0xc00033a688 sp=0xc00033a618 pc=0x4e910c
os.(*Process).blockUntilWaitable(0xc0005322a0)
	/usr/local/go/src/os/wait_wait6.go:20 +0x30 fp=0xc00033a6b8 sp=0xc00033a688 pc=0x4e9190
os.(*Process).wait(0xc0005322a0)
	/usr/local/go/src/os/exec_unix.go:22 +0x25 fp=0xc00033a718 sp=0xc00033a6b8 pc=0x4e3345
os.(*Process).Wait(...)
	/usr/local/go/src/os/exec.go:134
os/exec.(*Cmd).Wait(0xc0006b6000)
	/usr/local/go/src/os/exec/exec.go:890 +0x45 fp=0xc00033a780 sp=0xc00033a718 pc=0x795f05
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func3(0xc0006fc200)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:640 +0x28 fp=0xc00033a7c8 sp=0xc00033a780 pc=0xa14568
github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand.func8()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:645 +0x27 fp=0xc00033a7e0 sp=0xc00033a7c8 pc=0xa14507
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc00033a7e8 sp=0xc00033a7e0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*Env).makeCommand in goroutine 35
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:639 +0xc0d

goroutine 1188 [IO wait]:
runtime.gopark(0xc0003385d0?, 0xc0003385d0?, 0x7d?, 0xeb?, 0xc000338628?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0003385b8 sp=0xc000338598 pc=0x43d66e
runtime.netpollblock(0xc0007c2f0c?, 0x407ce6?, 0x0?)
	/usr/local/go/src/runtime/netpoll.go:564 +0xf7 fp=0xc0003385f0 sp=0xc0003385b8 pc=0x436a17
internal/poll.runtime_pollWait(0x7f7fb0fec098, 0x72)
	/usr/local/go/src/runtime/netpoll.go:343 +0x85 fp=0xc000338610 sp=0xc0003385f0 pc=0x469f85
internal/poll.(*pollDesc).wait(0xc0006a63c0?, 0xc0007c2f0c?, 0x1)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:84 +0x27 fp=0xc000338638 sp=0xc000338610 pc=0x4d8a07
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Read(0xc0006a63c0, {0xc0007c2f0c, 0x4, 0x4})
	/usr/local/go/src/internal/poll/fd_unix.go:164 +0x27a fp=0xc0003386d0 sp=0xc000338638 pc=0x4d9cfa
os.(*File).read(...)
	/usr/local/go/src/os/file_posix.go:29
os.(*File).Read(0xc000188a80, {0xc0007c2f0c?, 0xc000338748?, 0x410365?})
	/usr/local/go/src/os/file.go:118 +0x52 fp=0xc000338710 sp=0xc0003386d0 pc=0x4e3ad2
io.ReadAtLeast({0xd5f300, 0xc000188a80}, {0xc0007c2f0c, 0x4, 0x4}, 0x4)
	/usr/local/go/src/io/io.go:335 +0x90 fp=0xc000338758 sp=0xc000338710 pc=0x4b4a50
io.ReadFull(...)
	/usr/local/go/src/io/io.go:354
github.com/google/syzkaller/pkg/ipc.(*command).handshake.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:693 +0x5e fp=0xc0003387e0 sp=0xc000338758 pc=0xa14d9e
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0003387e8 sp=0xc0003387e0 pc=0x46f7c1
created by github.com/google/syzkaller/pkg/ipc.(*command).handshake in goroutine 34
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:690 +0x14d