runtime.netpollblockruntime: newstack sp=0xc001682090 stack=[0xc001684000, 0xc001686000]
	morebuf={pc:0x46d360 sp:0xc0016820a0 lr:0x0}
	sched={pc:0x450e6f sp:0xc001682098 lr:0x0 ctxt:0x0}
runtime: gp=0xc0010ec820, goid=19, gp->status=0x2
 runtime: split stack overflow: 0xc001682090 < 0xc001684000
fatal error: runtime: split stack overflow
(0x4c06f8?, 0x407de6?, 0x0?)
	/usr/local/go/src/runtime/netpoll.go:564 +0xf7 fp=0xc0000e6638 sp=0xc0000e6600 pc=0x4358b7
internal/poll.runtime_pollWait(0x7f9436e43310, 0x72)
	/usr/local/go/src/runtime/netpoll.go:343 +0x85 fp=0xc0000e6658 sp=0xc0000e6638 pc=0x467b05
internal/poll.(*pollDesc).wait(0xc0000c6720?, 0xc001740000?, 0x1)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:84 +0x27 fp=0xc0000e6680 sp=0xc0000e6658 pc=0x4db0a7
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Read(0xc0000c6720, {0xc001740000, 0x20000, 0x20000})
	/usr/local/go/src/internal/poll/fd_unix.go:164 +0x27a fp=0xc0000e6718 sp=0xc0000e6680 pc=0x4dc39a
os.(*File).read(...)
	/usr/local/go/src/os/file_posix.go:29
os.(*File).Read(0xc0000d8058, {0xc001740000?, 0x0?, 0x0?})
	/usr/local/go/src/os/file.go:118 +0x52 fp=0xc0000e6758 sp=0xc0000e6718 pc=0x4e7492
github.com/google/syzkaller/pkg/ipc.makeCommand.func2(0xc00014c2a0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:649 +0x89 fp=0xc0000e67c8 sp=0xc0000e6758 pc=0x984d69
github.com/google/syzkaller/pkg/ipc.makeCommand.func7()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:664 +0x27 fp=0xc0000e67e0 sp=0xc0000e67c8 pc=0x984ca7
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000e67e8 sp=0xc0000e67e0 pc=0x46d341
created by github.com/google/syzkaller/pkg/ipc.makeCommand in goroutine 22
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:643 +0xa25

goroutine 12 [syscall]:
syscall.Syscall6(0x0?, 0x0?, 0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
	/usr/local/go/src/syscall/syscall_linux.go:91 +0x30 fp=0xc0000e5de0 sp=0xc0000e5d58 pc=0x4c2750
os.(*Process).blockUntilWaitable(0xc00003cc60)
	/usr/local/go/src/os/wait_waitid.go:32 +0x76 fp=0xc0000e5eb8 sp=0xc0000e5de0 pc=0x4ed956
os.(*Process).wait(0xc00003cc60)
	/usr/local/go/src/os/exec_unix.go:22 +0x25 fp=0xc0000e5f18 sp=0xc0000e5eb8 pc=0x4e6d05
os.(*Process).Wait(...)
	/usr/local/go/src/os/exec.go:134
os/exec.(*Cmd).Wait(0xc001144f20)
	/usr/local/go/src/os/exec/exec.go:890 +0x45 fp=0xc0000e5f80 sp=0xc0000e5f18 pc=0x52ae05
github.com/google/syzkaller/pkg/ipc.makeCommand.func3(0xc0004d7d50)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:672 +0x28 fp=0xc0000e5fc8 sp=0xc0000e5f80 pc=0x984c08
github.com/google/syzkaller/pkg/ipc.makeCommand.func8()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:677 +0x27 fp=0xc0000e5fe0 sp=0xc0000e5fc8 pc=0x984ba7
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000e5fe8 sp=0xc0000e5fe0 pc=0x46d341
created by github.com/google/syzkaller/pkg/ipc.makeCommand in goroutine 21
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:671 +0xc34

goroutine 28 [IO wait]:
runtime.gopark(0x0?, 0xb?, 0x0?, 0x0?, 0x26?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc00004ee00 sp=0xc00004ede0 pc=0x43ce2e
runtime.netpollblock(0x4c06f8?, 0x407de6?, 0x0?)
	/usr/local/go/src/runtime/netpoll.go:564 +0xf7 fp=0xc00004ee38 sp=0xc00004ee00 pc=0x4358b7
internal/poll.runtime_pollWait(0x7f9436ea5520, 0x72)
	/usr/local/go/src/runtime/netpoll.go:343 +0x85 fp=0xc00004ee58 sp=0xc00004ee38 pc=0x467b05
internal/poll.(*pollDesc).wait(0xc0000c6a80?, 0xc001780000?, 0x1)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:84 +0x27 fp=0xc00004ee80 sp=0xc00004ee58 pc=0x4db0a7
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/go/src/internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Read(0xc0000c6a80, {0xc001780000, 0x20000, 0x20000})
	/usr/local/go/src/internal/poll/fd_unix.go:164 +0x27a fp=0xc00004ef18 sp=0xc00004ee80 pc=0x4dc39a
os.(*File).read(...)
	/usr/local/go/src/os/file_posix.go:29
os.(*File).Read(0xc0000d8088, {0xc001780000?, 0x0?, 0x0?})
	/usr/local/go/src/os/file.go:118 +0x52 fp=0xc00004ef58 sp=0xc00004ef18 pc=0x4e7492
github.com/google/syzkaller/pkg/ipc.makeCommand.func2(0xc00014c850)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:649 +0x89 fp=0xc00004efc8 sp=0xc00004ef58 pc=0x984d69
github.com/google/syzkaller/pkg/ipc.makeCommand.func7()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:664 +0x27 fp=0xc00004efe0 sp=0xc00004efc8 pc=0x984ca7
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc00004efe8 sp=0xc00004efe0 pc=0x46d341
created by github.com/google/syzkaller/pkg/ipc.makeCommand in goroutine 18
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:643 +0xa25

goroutine 32 [select]:
runtime.gopark(0xc00004f7b0?, 0x2?, 0xc0?, 0xe1?, 0xc00004f78c?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc00004f638 sp=0xc00004f618 pc=0x43ce2e
runtime.selectgo(0xc00004f7b0, 0xc00004f788, 0xc0015bfd38?, 0x0, 0x4?, 0x1)
	/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc00004f758 sp=0xc00004f638 pc=0x44d145
github.com/google/syzkaller/pkg/ipc.(*command).exec.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:791 +0x77 fp=0xc00004f7e0 sp=0xc00004f758 pc=0x9862d7
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc00004f7e8 sp=0xc00004f7e0 pc=0x46d341
created by github.com/google/syzkaller/pkg/ipc.(*command).exec in goroutine 21
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:789 +0x23f

goroutine 14 [syscall]:
syscall.Syscall6(0x0?, 0x0?, 0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
	/usr/local/go/src/syscall/syscall_linux.go:91 +0x30 fp=0xc0000505e0 sp=0xc000050558 pc=0x4c2750
os.(*Process).blockUntilWaitable(0xc00003cc90)
	/usr/local/go/src/os/wait_waitid.go:32 +0x76 fp=0xc0000506b8 sp=0xc0000505e0 pc=0x4ed956
os.(*Process).wait(0xc00003cc90)
	/usr/local/go/src/os/exec_unix.go:22 +0x25 fp=0xc000050718 sp=0xc0000506b8 pc=0x4e6d05
os.(*Process).Wait(...)
	/usr/local/go/src/os/exec.go:134
os/exec.(*Cmd).Wait(0xc00168c000)
	/usr/local/go/src/os/exec/exec.go:890 +0x45 fp=0xc000050780 sp=0xc000050718 pc=0x52ae05
github.com/google/syzkaller/pkg/ipc.makeCommand.func3(0xc00014c230)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:672 +0x28 fp=0xc0000507c8 sp=0xc000050780 pc=0x984c08
github.com/google/syzkaller/pkg/ipc.makeCommand.func8()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:677 +0x27 fp=0xc0000507e0 sp=0xc0000507c8 pc=0x984ba7
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000507e8 sp=0xc0000507e0 pc=0x46d341
created by github.com/google/syzkaller/pkg/ipc.makeCommand in goroutine 19
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:671 +0xc34

goroutine 16 [syscall]:
syscall.Syscall6(0x0?, 0x0?, 0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
	/usr/local/go/src/syscall/syscall_linux.go:91 +0x30 fp=0xc0000515e0 sp=0xc000051558 pc=0x4c2750
os.(*Process).blockUntilWaitable(0xc00003ccc0)
	/usr/local/go/src/os/wait_waitid.go:32 +0x76 fp=0xc0000516b8 sp=0xc0000515e0 pc=0x4ed956
os.(*Process).wait(0xc00003ccc0)
	/usr/local/go/src/os/exec_unix.go:22 +0x25 fp=0xc000051718 sp=0xc0000516b8 pc=0x4e6d05
os.(*Process).Wait(...)
	/usr/local/go/src/os/exec.go:134
os/exec.(*Cmd).Wait(0xc00168c160)
	/usr/local/go/src/os/exec/exec.go:890 +0x45 fp=0xc000051780 sp=0xc000051718 pc=0x52ae05
github.com/google/syzkaller/pkg/ipc.makeCommand.func3(0xc00014c2a0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:672 +0x28 fp=0xc0000517c8 sp=0xc000051780 pc=0x984c08
github.com/google/syzkaller/pkg/ipc.makeCommand.func8()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:677 +0x27 fp=0xc0000517e0 sp=0xc0000517c8 pc=0x984ba7
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000517e8 sp=0xc0000517e0 pc=0x46d341
created by github.com/google/syzkaller/pkg/ipc.makeCommand in goroutine 22
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:671 +0xc34

goroutine 37 [select]:
runtime.gopark(0xc000051fb0?, 0x2?, 0xc0?, 0xb8?, 0xc000051f8c?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc000051e38 sp=0xc000051e18 pc=0x43ce2e
runtime.selectgo(0xc000051fb0, 0xc000051f88, 0xc0015bfd40?, 0x0, 0x4?, 0x1)
	/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc000051f58 sp=0xc000051e38 pc=0x44d145
github.com/google/syzkaller/pkg/ipc.(*command).exec.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:791 +0x77 fp=0xc000051fe0 sp=0xc000051f58 pc=0x9862d7
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000051fe8 sp=0xc000051fe0 pc=0x46d341
created by github.com/google/syzkaller/pkg/ipc.(*command).exec in goroutine 22
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:789 +0x23f

goroutine 34 [syscall]:
syscall.Syscall6(0x0?, 0x0?, 0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
	/usr/local/go/src/syscall/syscall_linux.go:91 +0x30 fp=0xc0000555e0 sp=0xc000055558 pc=0x4c2750
os.(*Process).blockUntilWaitable(0xc00003ccf0)
	/usr/local/go/src/os/wait_waitid.go:32 +0x76 fp=0xc0000556b8 sp=0xc0000555e0 pc=0x4ed956
os.(*Process).wait(0xc00003ccf0)
	/usr/local/go/src/os/exec_unix.go:22 +0x25 fp=0xc000055718 sp=0xc0000556b8 pc=0x4e6d05
os.(*Process).Wait(...)
	/usr/local/go/src/os/exec.go:134
os/exec.(*Cmd).Wait(0xc001145080)
	/usr/local/go/src/os/exec/exec.go:890 +0x45 fp=0xc000055780 sp=0xc000055718 pc=0x52ae05
github.com/google/syzkaller/pkg/ipc.makeCommand.func3(0xc0004d7dc0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:672 +0x28 fp=0xc0000557c8 sp=0xc000055780 pc=0x984c08
github.com/google/syzkaller/pkg/ipc.makeCommand.func8()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:677 +0x27 fp=0xc0000557e0 sp=0xc0000557c8 pc=0x984ba7
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000557e8 sp=0xc0000557e0 pc=0x46d341
created by github.com/google/syzkaller/pkg/ipc.makeCommand in goroutine 20
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:671 +0xc34

goroutine 38 [select]:
runtime.gopark(0xc000055fb0?, 0x2?, 0xe0?, 0xb9?, 0xc000055f8c?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc000055e38 sp=0xc000055e18 pc=0x43ce2e
runtime.selectgo(0xc000055fb0, 0xc000055f88, 0xc0015bfd44?, 0x0, 0x4?, 0x1)
	/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc000055f58 sp=0xc000055e38 pc=0x44d145
github.com/google/syzkaller/pkg/ipc.(*command).exec.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:791 +0x77 fp=0xc000055fe0 sp=0xc000055f58 pc=0x9862d7
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000055fe8 sp=0xc000055fe0 pc=0x46d341
created by github.com/google/syzkaller/pkg/ipc.(*command).exec in goroutine 20
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:789 +0x23f

goroutine 29 [syscall]:
syscall.Syscall6(0x0?, 0x0?, 0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
	/usr/local/go/src/syscall/syscall_linux.go:91 +0x30 fp=0xc0000e0de0 sp=0xc0000e0d58 pc=0x4c2750
os.(*Process).blockUntilWaitable(0xc0000fe3c0)
	/usr/local/go/src/os/wait_waitid.go:32 +0x76 fp=0xc0000e0eb8 sp=0xc0000e0de0 pc=0x4ed956
os.(*Process).wait(0xc0000fe3c0)
	/usr/local/go/src/os/exec_unix.go:22 +0x25 fp=0xc0000e0f18 sp=0xc0000e0eb8 pc=0x4e6d05
os.(*Process).Wait(...)
	/usr/local/go/src/os/exec.go:134
os/exec.(*Cmd).Wait(0xc00168c2c0)
	/usr/local/go/src/os/exec/exec.go:890 +0x45 fp=0xc0000e0f80 sp=0xc0000e0f18 pc=0x52ae05
github.com/google/syzkaller/pkg/ipc.makeCommand.func3(0xc00014c850)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:672 +0x28 fp=0xc0000e0fc8 sp=0xc0000e0f80 pc=0x984c08
github.com/google/syzkaller/pkg/ipc.makeCommand.func8()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:677 +0x27 fp=0xc0000e0fe0 sp=0xc0000e0fc8 pc=0x984ba7
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000e0fe8 sp=0xc0000e0fe0 pc=0x46d341
created by github.com/google/syzkaller/pkg/ipc.makeCommand in goroutine 18
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:671 +0xc34

goroutine 39 [select]:
runtime.gopark(0xc0000e17b0?, 0x2?, 0xa0?, 0xba?, 0xc0000e178c?)
	/usr/local/go/src/runtime/proc.go:398 +0xce fp=0xc0000e1638 sp=0xc0000e1618 pc=0x43ce2e
runtime.selectgo(0xc0000e17b0, 0xc0000e1788, 0xc0000d0168?, 0x0, 0x4?, 0x1)
	/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc0000e1758 sp=0xc0000e1638 pc=0x44d145
github.com/google/syzkaller/pkg/ipc.(*command).exec.func1()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:791 +0x77 fp=0xc0000e17e0 sp=0xc0000e1758 pc=0x9862d7
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0000e17e8 sp=0xc0000e17e0 pc=0x46d341
created by github.com/google/syzkaller/pkg/ipc.(*command).exec in goroutine 18
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:789 +0x23f

rax    0xca
rbx    0x0
rcx    0x46f183
rdx    0x0
rdi    0x232d868
rsi    0x80
rbp    0x7fffe0175e00
rsp    0x7fffe0175db8
r8     0x0
r9     0x0
r10    0x0
r11    0x286
r12    0x443640
r13    0xc0000e77a4
r14    0x232b440
r15    0x1b
rip    0x46f181
rflags 0x286
cs     0x33
fs     0x0
gs     0x0