Warning: Permanently added '10.128.10.3' (ECDSA) to the list of known hosts.
2021/11/01 10:09:18 fuzzer started
2021/11/01 10:09:18 connecting to host at 10.128.0.169:42445
2021/11/01 10:09:18 checking machine...
2021/11/01 10:09:18 checking revisions...
fatal error: sigaction failed

runtime stack:
runtime.throw(0x8011ce, 0x10)
	/usr/lib/go-1.15/src/runtime/panic.go:1116 +0x72
runtime.sysSigaction.func1()
	/usr/lib/go-1.15/src/runtime/os_linux.go:471 +0x36
runtime.systemstack(0x0)
	/usr/lib/go-1.15/src/runtime/asm_amd64.s:370 +0x66
runtime.mstart()
	/usr/lib/go-1.15/src/runtime/proc.go:1116

goroutine 1 [running]:
runtime.systemstack_switch()
	/usr/lib/go-1.15/src/runtime/asm_amd64.s:330 fp=0xc000329088 sp=0xc000329080 pc=0x46a740
runtime.sysSigaction(0x7f8000000001, 0xc000329138, 0x0)
	/usr/lib/go-1.15/src/runtime/os_linux.go:470 +0x6c fp=0xc0003290c0 sp=0xc000329088 pc=0x43346c
runtime.sigaction(0x100000000000001, 0xc000329138, 0x0)
	/usr/lib/go-1.15/src/runtime/cgo_sigaction.go:32 +0x45 fp=0xc000329120 sp=0xc0003290c0 pc=0x404865
runtime.setsig(0xc000000001, 0x0)
	/usr/lib/go-1.15/src/runtime/os_linux.go:420 +0x98 fp=0xc000329168 sp=0xc000329120 pc=0x433338
runtime.clearSignalHandlers()
	/usr/lib/go-1.15/src/runtime/signal_unix.go:259 +0x3f fp=0xc000329190 sp=0xc000329168 pc=0x44b3df
syscall.runtime_AfterForkInChild()
	/usr/lib/go-1.15/src/runtime/proc.go:3483 +0x1a fp=0xc0003291c8 sp=0xc000329190 pc=0x4677da
syscall.forkAndExecInChild1(0xc0001008d0, 0xc00000dd40, 0x3, 0x3, 0xc000300b40, 0xc, 0xc, 0x0, 0x0, 0xc0003295e8, ...)
	/usr/lib/go-1.15/src/syscall/exec_linux.go:236 +0x318 fp=0xc000329370 sp=0xc0003291c8 pc=0x4a8898
syscall.forkAndExecInChild(0xc0001008d0, 0xc00000dd40, 0x3, 0x3, 0xc000300b40, 0xc, 0xc, 0x0, 0x0, 0xc0003295e8, ...)
	/usr/lib/go-1.15/src/syscall/exec_linux.go:83 +0xcf fp=0xc000329448 sp=0xc000329370 pc=0x4a83af
syscall.forkExec(0x7ffda2feae5e, 0xe, 0xc00000d780, 0x2, 0x2, 0xc0003295e8, 0xb, 0xd033e9fd00000100, 0xc00033e340)
	/usr/lib/go-1.15/src/syscall/exec_unix.go:211 +0x398 fp=0xc000329558 sp=0xc000329448 pc=0x4aafd8
syscall.StartProcess(...)
	/usr/lib/go-1.15/src/syscall/exec_unix.go:263
os.startProcess(0x7ffda2feae5e, 0xe, 0xc00000d780, 0x2, 0x2, 0xc000329780, 0xc000010370, 0xb, 0xb)
	/usr/lib/go-1.15/src/os/exec_posix.go:53 +0x29b fp=0xc000329640 sp=0xc000329558 pc=0x4cad3b
os.StartProcess(0x7ffda2feae5e, 0xe, 0xc00000d780, 0x2, 0x2, 0xc000329780, 0xb, 0xc0003297b8, 0x419a85)
	/usr/lib/go-1.15/src/os/exec.go:102 +0x7c fp=0xc000329698 sp=0xc000329640 pc=0x4ca99c
os/exec.(*Cmd).Start(0xc000106580, 0xc000304d80, 0xc0001ff000)
	/usr/lib/go-1.15/src/os/exec/exec.go:422 +0x528 fp=0xc0003297d8 sp=0xc000329698 pc=0x4fd528
github.com/google/syzkaller/pkg/osutil.Run(0xdf8475800, 0xc000106580, 0xc000304cc0, 0x0, 0x0, 0xc000106580, 0x1)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/osutil/osutil.go:43 +0xa5 fp=0xc0003298f8 sp=0xc0003297d8 pc=0x5048a5
main.checkRevisions(0xc000329f00, 0x945ba8, 0xc000380120)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/testing.go:218 +0x1a6 fp=0xc0003299a8 sp=0xc0003298f8 pc=0x73f2e6
main.checkMachine(0xc000329f00, 0x0, 0x0, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/testing.go:124 +0xf6 fp=0xc000329ae0 sp=0xc0003299a8 pc=0x73e036
main.testImage(0x7ffda2feae8d, 0x12, 0xc000329f00)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/testing.go:41 +0x165 fp=0xc000329b68 sp=0xc000329ae0 pc=0x73d6e5
main.main()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:178 +0x1c14 fp=0xc000329f88 sp=0xc000329b68 pc=0x7378d4
runtime.main()
	/usr/lib/go-1.15/src/runtime/proc.go:204 +0x209 fp=0xc000329fe0 sp=0xc000329f88 pc=0x438d09
runtime.goexit()
	/usr/lib/go-1.15/src/runtime/asm_amd64.s:1374 +0x1 fp=0xc000329fe8 sp=0xc000329fe0 pc=0x46c381

goroutine 20 [chan receive]:
github.com/google/syzkaller/pkg/osutil.HandleInterrupts.func1(0xc0000560c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/osutil/osutil_unix.go:79 +0xb6
created by github.com/google/syzkaller/pkg/osutil.HandleInterrupts
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/osutil/osutil_unix.go:76 +0x3f

goroutine 21 [chan receive]:
main.main.func1(0xc0000560c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:164 +0x34
created by main.main
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:162 +0x573

goroutine 9 [syscall]:
os/signal.signal_recv(0x0)
	/usr/lib/go-1.15/src/runtime/sigqueue.go:147 +0x9d
os/signal.loop()
	/usr/lib/go-1.15/src/os/signal/signal_unix.go:23 +0x25
created by os/signal.Notify.func1.1
	/usr/lib/go-1.15/src/os/signal/signal.go:150 +0x45

goroutine 23 [select]:
main.checkMachineHeartbeats(0xc000380120)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/testing.go:108 +0x12f
created by main.checkMachine
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/testing.go:123 +0xe5