goroutine 19 has status 2
acquirep: p->m=0xc210081800(12) p->status=1
checkdead: find g 1 in status 1
fatal error: bad g->status in ready

goroutine 11 [running]:
runtime.throw(0x5bd1af)
	/usr/local/go/src/pkg/runtime/panic.c:464 +0x69 fp=0x8008f7998
runtime.ready(0xc210050ea0)
	/usr/local/go/src/pkg/runtime/proc.c:339 +0x6c fp=0x8008f79b8
runtime.semrelease(0x5c4e94)
	/usr/local/go/src/pkg/runtime/sema.goc:183 +0x128 fp=0x8008f79e0
sync.runtime_Semrelease(0x5c4e94)
	/usr/local/go/src/pkg/runtime/sema.goc:203 +0x27 fp=0x8008f79f0
sync.(*Mutex).Unlock(0x5c4e90)
	/usr/local/go/src/pkg/sync/mutex.go:104 +0xf3 fp=0x8008f7a28
sync.(*RWMutex).Unlock(0x5c4e90)
	/usr/local/go/src/pkg/sync/rwmutex.go:113 +0x9f fp=0x8008f7a58
syscall.forkExec(0xc2100bc100, 0x7, 0xc21005e1e0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:196 +0x5ae fp=0x8008f7b78
syscall.StartProcess(0xc2100bc100, 0x7, 0xc21005e1e0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:238 +0x76 fp=0x8008f7bc8
os.startProcess(0xc2100bc100, 0x7, 0xc21005e1e0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/exec_posix.go:45 +0x346 fp=0x8008f7cc8
os.StartProcess(0xc2100bc100, 0x7, 0xc21005e1e0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/doc.go:24 +0x5e fp=0x8008f7d18
os/exec.(*Cmd).Start(0xc210061640, 0x0, 0x3)
	/usr/local/go/src/pkg/os/exec/exec.go:265 +0x6cc fp=0x8008f7ea8
os/exec.(*Cmd).Run(0xc210061640, 0x2, 0x8008f7f18)
	/usr/local/go/src/pkg/os/exec/exec.go:230 +0x27 fp=0x8008f7ec8
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd fp=0x8008f7f40
main.func·001()
	/home/riggs/td/ls.go:41 +0x56 fp=0x8008f7fa0
runtime.goexit()
	/usr/local/go/src/pkg/runtime/proc.c:1394 fp=0x8008f7fa8
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 1 [runnable]:
syscall.ReadDirent(0xa, 0xc21012d000, 0x1000, 0x1000, 0x0, ...)
	/usr/local/go/src/pkg/syscall/syscall_bsd.go:68 +0x3d
os.(*File).readdirnames(0xc21005f240, 0xffffffffffffffff, 0xc21003c680, 0x0, 0x64, ...)
	/usr/local/go/src/pkg/os/dir_unix.go:39 +0x1a9
os.(*File).Readdirnames(0xc21005f240, 0xffffffffffffffff, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/os/doc.go:131 +0xa5
os.(*File).readdir(0xc21005f240, 0xffffffffffffffff, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/os/file_unix.go:164 +0xea
os.(*File).Readdir(0xc21005f240, 0xffffffffffffffff, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/os/doc.go:112 +0xa5
path/filepath.readDir(0xc21005f230, 0x5, 0x8005bc0d0, 0xc21001f820, 0x0, ...)
	/usr/local/go/src/pkg/path/filepath/path.go:391 +0x9e
path/filepath.walk(0xc21005f230, 0x5, 0x8005bc0d0, 0xc21001f820, 0x80075cf10, ...)
	/usr/local/go/src/pkg/path/filepath/path.go:353 +0x18c
path/filepath.walk(0x4cdf40, 0x1, 0x8005bc0d0, 0xc21001f190, 0x80075cf10, ...)
	/usr/local/go/src/pkg/path/filepath/path.go:359 +0x338
path/filepath.Walk(0x4cdf40, 0x1, 0x80075cf10, 0x4bdbe0, 0x0)
	/usr/local/go/src/pkg/path/filepath/path.go:380 +0xb7
main.main()
	/home/riggs/td/ls.go:47 +0xf1

goroutine 5 [runnable]:
syscall.Syscall6(0x7, 0xb310, 0xc210117028, 0x0, 0xc21010f090, ...)
	/usr/local/go/src/pkg/syscall/asm_freebsd_amd64.s:64 +0x64
syscall.wait4(0xb310, 0xc210117028, 0x0, 0xc21010f090, 0x41d962, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_freebsd_amd64.go:32 +0x7d
syscall.Wait4(0xb310, 0x800770dac, 0x0, 0xc21010f090, 0x800770e10, ...)
	/usr/local/go/src/pkg/syscall/syscall_bsd.go:126 +0x6e
os.(*Process).wait(0xc2100d8000, 0x5001e0, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec_unix.go:22 +0xec
os.(*Process).Wait(0xc2100d8000, 0xc2100cf010, 0xc2100d4020, 0x20)
	/usr/local/go/src/pkg/os/doc.go:43 +0x27
os/exec.(*Cmd).Wait(0xc2100bf000, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:311 +0x199
os/exec.(*Cmd).Run(0xc2100bf000, 0x2, 0x800770f18)
	/usr/local/go/src/pkg/os/exec/exec.go:233 +0x54
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 6 [runnable]:
syscall.Syscall6(0x7, 0xb30e, 0xc2100000a0, 0x0, 0xc210103000, ...)
	/usr/local/go/src/pkg/syscall/asm_freebsd_amd64.s:64 +0x64
syscall.wait4(0xb30e, 0xc2100000a0, 0x0, 0xc210103000, 0x41d962, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_freebsd_amd64.go:32 +0x7d
syscall.Wait4(0xb30e, 0x80076edac, 0x0, 0xc210103000, 0x80076ee10, ...)
	/usr/local/go/src/pkg/syscall/syscall_bsd.go:126 +0x6e
os.(*Process).wait(0xc2100d8020, 0x5001e0, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec_unix.go:22 +0xec
os.(*Process).Wait(0xc2100d8020, 0xc21005e100, 0xc210064040, 0x20)
	/usr/local/go/src/pkg/os/doc.go:43 +0x27
os/exec.(*Cmd).Wait(0xc2100b1000, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:311 +0x199
os/exec.(*Cmd).Run(0xc2100b1000, 0x2, 0x80076ef18)
	/usr/local/go/src/pkg/os/exec/exec.go:233 +0x54
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 7 [runnable]:
syscall.Syscall6(0x7, 0xb30d, 0xc2100d5028, 0x0, 0xc210094120, ...)
	/usr/local/go/src/pkg/syscall/asm_freebsd_amd64.s:64 +0x64
syscall.wait4(0xb30d, 0xc2100d5028, 0x0, 0xc210094120, 0x41d962, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_freebsd_amd64.go:32 +0x7d
syscall.Wait4(0xb30d, 0x80076cdac, 0x0, 0xc210094120, 0x80076ce10, ...)
	/usr/local/go/src/pkg/syscall/syscall_bsd.go:126 +0x6e
os.(*Process).wait(0xc2100cd260, 0x5001e0, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec_unix.go:22 +0xec
os.(*Process).Wait(0xc2100cd260, 0xc210090070, 0xc210047040, 0x20)
	/usr/local/go/src/pkg/os/doc.go:43 +0x27
os/exec.(*Cmd).Wait(0xc210098280, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:311 +0x199
os/exec.(*Cmd).Run(0xc210098280, 0x2, 0x80076cf18)
	/usr/local/go/src/pkg/os/exec/exec.go:233 +0x54
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 8 [runnable]:
syscall.Syscall6(0x7, 0xb30f, 0xc2100000a8, 0x0, 0xc210103120, ...)
	/usr/local/go/src/pkg/syscall/asm_freebsd_amd64.s:64 +0x64
syscall.wait4(0xb30f, 0xc2100000a8, 0x0, 0xc210103120, 0x41d962, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_freebsd_amd64.go:32 +0x7d
syscall.Wait4(0xb30f, 0x80076adac, 0x0, 0xc210103120, 0x80076ae10, ...)
	/usr/local/go/src/pkg/syscall/syscall_bsd.go:126 +0x6e
os.(*Process).wait(0xc2100ce1a0, 0x5001e0, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec_unix.go:22 +0xec
os.(*Process).Wait(0xc2100ce1a0, 0xc21001e2e0, 0xc2100cd020, 0x20)
	/usr/local/go/src/pkg/os/doc.go:43 +0x27
os/exec.(*Cmd).Wait(0xc2100c3000, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:311 +0x199
os/exec.(*Cmd).Run(0xc2100c3000, 0x2, 0x80076af18)
	/usr/local/go/src/pkg/os/exec/exec.go:233 +0x54
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 9 [runnable]:
syscall.Syscall(0x3, 0x12, 0xc210105048, 0x8, 0x0, ...)
	/usr/local/go/src/pkg/syscall/asm_freebsd_amd64.s:41 +0x5e
syscall.readlen(0x12, 0xc210105048, 0x8, 0x4, 0x0, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_freebsd_amd64.go:1286 +0x56
syscall.forkExec(0xc210105000, 0x7, 0xc210104030, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:200 +0x5e6
syscall.StartProcess(0xc210105000, 0x7, 0xc210104030, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:238 +0x76
os.startProcess(0xc210105000, 0x7, 0xc210104030, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/exec_posix.go:45 +0x346
os.StartProcess(0xc210105000, 0x7, 0xc210104030, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/doc.go:24 +0x5e
os/exec.(*Cmd).Start(0xc21011c000, 0x0, 0x3)
	/usr/local/go/src/pkg/os/exec/exec.go:265 +0x6cc
os/exec.(*Cmd).Run(0xc21011c000, 0x2, 0x8008fbf18)
	/usr/local/go/src/pkg/os/exec/exec.go:230 +0x27
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 10 [runnable]:
sync.runtime_Semacquire(0x5c4e94)
	/usr/local/go/src/pkg/runtime/sema.goc:199 +0x30
sync.(*Mutex).Lock(0x5c4e90)
	/usr/local/go/src/pkg/sync/mutex.go:66 +0xd6
sync.(*RWMutex).Lock(0x5c4e90)
	/usr/local/go/src/pkg/sync/rwmutex.go:78 +0x32
syscall.forkExec(0xc2100bc080, 0x7, 0xc2100cf180, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:183 +0x3af
syscall.StartProcess(0xc2100bc080, 0x7, 0xc2100cf180, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:238 +0x76
os.startProcess(0xc2100bc080, 0x7, 0xc2100cf180, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/exec_posix.go:45 +0x346
os.StartProcess(0xc2100bc080, 0x7, 0xc2100cf180, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/doc.go:24 +0x5e
os/exec.(*Cmd).Start(0xc2100bf140, 0x0, 0x3)
	/usr/local/go/src/pkg/os/exec/exec.go:265 +0x6cc
os/exec.(*Cmd).Run(0xc2100bf140, 0x2, 0x8008f9f18)
	/usr/local/go/src/pkg/os/exec/exec.go:230 +0x27
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 12 [runnable]:
syscall.Stat(0xc210091098, 0x7, 0xc210086380, 0x4d2e00, 0x2)
	/usr/local/go/src/pkg/syscall/zsyscall_freebsd_amd64.go:1119
os.Stat(0xc210091098, 0x7, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/os/file_unix.go:138 +0x71
os/exec.findExecutable(0xc210091098, 0x7, 0x4, 0x4cdf40)
	/usr/local/go/src/pkg/os/exec/lp_unix.go:19 +0x31
os/exec.LookPath(0x4d2e00, 0x2, 0x0, 0x0, 0xc20fffa678, ...)
	/usr/local/go/src/pkg/os/exec/lp_unix.go:55 +0x35a
os/exec.Command(0x4d2e00, 0x2, 0x8008f5f18, 0x2, 0x2, ...)
	/usr/local/go/src/pkg/os/exec/exec.go:110 +0x3f
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:13 +0xbf
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 13 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 14 [semacquire]:
sync.runtime_Semacquire(0x5c4e94)
	/usr/local/go/src/pkg/runtime/sema.goc:199 +0x30
sync.(*Mutex).Lock(0x5c4e90)
	/usr/local/go/src/pkg/sync/mutex.go:66 +0xd6
sync.(*RWMutex).Lock(0x5c4e90)
	/usr/local/go/src/pkg/sync/rwmutex.go:78 +0x32
syscall.forkExec(0xc2100d5030, 0x7, 0xc2100ca150, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:183 +0x3af
syscall.StartProcess(0xc2100d5030, 0x7, 0xc2100ca150, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:238 +0x76
os.startProcess(0xc2100d5030, 0x7, 0xc2100ca150, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/exec_posix.go:45 +0x346
os.StartProcess(0xc2100d5030, 0x7, 0xc2100ca150, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/doc.go:24 +0x5e
os/exec.(*Cmd).Start(0xc2100c3140, 0x0, 0x3)
	/usr/local/go/src/pkg/os/exec/exec.go:265 +0x6cc
os/exec.(*Cmd).Run(0xc2100c3140, 0x2, 0x8008f1f18)
	/usr/local/go/src/pkg/os/exec/exec.go:230 +0x27
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 15 [runnable]:
syscall.Syscall(0x3, 0x11, 0xc2100bc130, 0x8, 0x0, ...)
	/usr/local/go/src/pkg/syscall/asm_freebsd_amd64.s:41 +0x5e
syscall.readlen(0x11, 0xc2100bc130, 0x8, 0x4, 0x0, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_freebsd_amd64.go:1286 +0x56
syscall.forkExec(0xc210117000, 0x7, 0xc210115030, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:200 +0x5e6
syscall.StartProcess(0xc210117000, 0x7, 0xc210115030, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:238 +0x76
os.startProcess(0xc210117000, 0x7, 0xc210115030, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/exec_posix.go:45 +0x346
os.StartProcess(0xc210117000, 0x7, 0xc210115030, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/doc.go:24 +0x5e
os/exec.(*Cmd).Start(0xc210119000, 0x0, 0x3)
	/usr/local/go/src/pkg/os/exec/exec.go:265 +0x6cc
os/exec.(*Cmd).Run(0xc210119000, 0x2, 0x8008eff18)
	/usr/local/go/src/pkg/os/exec/exec.go:230 +0x27
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 16 [runnable]:
syscall.Syscall(0x3, 0x16, 0xc2100004d8, 0x8, 0x0, ...)
	/usr/local/go/src/pkg/syscall/asm_freebsd_amd64.s:41 +0x5e
syscall.readlen(0x16, 0xc2100004d8, 0x8, 0x4, 0x0, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_freebsd_amd64.go:1286 +0x56
syscall.forkExec(0xc210000490, 0x7, 0xc21001e4e0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:200 +0x5e6
syscall.StartProcess(0xc210000490, 0x7, 0xc21001e4e0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:238 +0x76
os.startProcess(0xc210000490, 0x7, 0xc21001e4e0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/exec_posix.go:45 +0x346
os.StartProcess(0xc210000490, 0x7, 0xc21001e4e0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/doc.go:24 +0x5e
os/exec.(*Cmd).Start(0xc2100c0140, 0x0, 0x3)
	/usr/local/go/src/pkg/os/exec/exec.go:265 +0x6cc
os/exec.(*Cmd).Run(0xc2100c0140, 0x2, 0x8008edf18)
	/usr/local/go/src/pkg/os/exec/exec.go:230 +0x27
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 17 [semacquire]:
sync.runtime_Semacquire(0x5c4e94)
	/usr/local/go/src/pkg/runtime/sema.goc:199 +0x30
sync.(*Mutex).Lock(0x5c4e90)
	/usr/local/go/src/pkg/sync/mutex.go:66 +0xd6
sync.(*RWMutex).Lock(0x5c4e90)
	/usr/local/go/src/pkg/sync/rwmutex.go:78 +0x32
syscall.forkExec(0xc2100d50b0, 0x7, 0xc2100ca2d0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:183 +0x3af
syscall.StartProcess(0xc2100d50b0, 0x7, 0xc2100ca2d0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:238 +0x76
os.startProcess(0xc2100d50b0, 0x7, 0xc2100ca2d0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/exec_posix.go:45 +0x346
os.StartProcess(0xc2100d50b0, 0x7, 0xc2100ca2d0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/doc.go:24 +0x5e
os/exec.(*Cmd).Start(0xc2100c3280, 0x0, 0x3)
	/usr/local/go/src/pkg/os/exec/exec.go:265 +0x6cc
os/exec.(*Cmd).Run(0xc2100c3280, 0x2, 0x8008ebf18)
	/usr/local/go/src/pkg/os/exec/exec.go:230 +0x27
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 18 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 19 [running]:
	goroutine running on other thread; stack unavailable
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 20 [runnable]:
os/exec.(*Cmd).Start(0xc21011c140, 0x0, 0x3)
	/usr/local/go/src/pkg/os/exec/exec.go:255 +0x3a9
os/exec.(*Cmd).Run(0xc21011c140, 0x2, 0x8008e5f18)
	/usr/local/go/src/pkg/os/exec/exec.go:230 +0x27
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 21 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 22 [runnable]:
syscall.Syscall(0x3, 0xb, 0xc210000560, 0x8, 0x0, ...)
	/usr/local/go/src/pkg/syscall/asm_freebsd_amd64.s:41 +0x5e
syscall.readlen(0xb, 0xc210000560, 0x8, 0x4, 0x0, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_freebsd_amd64.go:1286 +0x56
syscall.forkExec(0xc210000518, 0x7, 0xc21001e660, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:200 +0x5e6
syscall.StartProcess(0xc210000518, 0x7, 0xc21001e660, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:238 +0x76
os.startProcess(0xc210000518, 0x7, 0xc21001e660, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/exec_posix.go:45 +0x346
os.StartProcess(0xc210000518, 0x7, 0xc21001e660, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/doc.go:24 +0x5e
os/exec.(*Cmd).Start(0xc2100c0280, 0x0, 0x3)
	/usr/local/go/src/pkg/os/exec/exec.go:265 +0x6cc
os/exec.(*Cmd).Run(0xc2100c0280, 0x2, 0x8008e1f18)
	/usr/local/go/src/pkg/os/exec/exec.go:230 +0x27
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 23 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 24 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 25 [runnable]:
os/exec.findExecutable(0xc2100e3330, 0x8, 0x5, 0x4cdf40)
	/usr/local/go/src/pkg/os/exec/lp_unix.go:18
os/exec.LookPath(0x4d2e00, 0x2, 0x0, 0x0, 0xc20ffeb278, ...)
	/usr/local/go/src/pkg/os/exec/lp_unix.go:55 +0x35a
os/exec.Command(0x4d2e00, 0x2, 0x80093bf18, 0x2, 0x2, ...)
	/usr/local/go/src/pkg/os/exec/exec.go:110 +0x3f
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:13 +0xbf
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 26 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 27 [runnable]:
syscall.Syscall(0x5, 0xc2100d61f0, 0x0, 0x0, 0x2b, ...)
	/usr/local/go/src/pkg/syscall/asm_freebsd_amd64.s:41 +0x5e
syscall.Open(0x4d56b0, 0x9, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_freebsd_amd64.go:823 +0x9c
os.OpenFile(0x4d56b0, 0x9, 0x0, 0x0, 0x8, ...)
	/usr/local/go/src/pkg/os/file_unix.go:77 +0x70
os.Open(0x4d56b0, 0x9, 0x41c4c9, 0x0, 0x0)
	/usr/local/go/src/pkg/os/file.go:236 +0x54
os/exec.(*Cmd).stdin(0xc2100b1280, 0x0, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:146 +0x90
os/exec.(*Cmd).Start(0xc2100b1280, 0x0, 0x3)
	/usr/local/go/src/pkg/os/exec/exec.go:249 +0x277
os/exec.(*Cmd).Run(0xc2100b1280, 0x2, 0x800937f18)
	/usr/local/go/src/pkg/os/exec/exec.go:230 +0x27
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 28 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 29 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 30 [semacquire]:
sync.runtime_Semacquire(0x5c4e94)
	/usr/local/go/src/pkg/runtime/sema.goc:199 +0x30
sync.(*Mutex).Lock(0x5c4e90)
	/usr/local/go/src/pkg/sync/mutex.go:66 +0xd6
sync.(*RWMutex).Lock(0x5c4e90)
	/usr/local/go/src/pkg/sync/rwmutex.go:78 +0x32
syscall.forkExec(0xc2100005a0, 0x7, 0xc21001e7e0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:183 +0x3af
syscall.StartProcess(0xc2100005a0, 0x7, 0xc21001e7e0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/syscall/exec_unix.go:238 +0x76
os.startProcess(0xc2100005a0, 0x7, 0xc21001e7e0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/exec_posix.go:45 +0x346
os.StartProcess(0xc2100005a0, 0x7, 0xc21001e7e0, 0x3, 0x3, ...)
	/usr/local/go/src/pkg/os/doc.go:24 +0x5e
os/exec.(*Cmd).Start(0xc2100c03c0, 0x0, 0x3)
	/usr/local/go/src/pkg/os/exec/exec.go:265 +0x6cc
os/exec.(*Cmd).Run(0xc2100c03c0, 0x2, 0x800931f18)
	/usr/local/go/src/pkg/os/exec/exec.go:230 +0x27
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 31 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 32 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 33 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 34 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 35 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 36 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 37 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 38 [runnable]:
syscall.Syscall(0x5, 0xc21000aa00, 0x0, 0x0, 0x2c, ...)
	/usr/local/go/src/pkg/syscall/asm_freebsd_amd64.s:41 +0x5e
syscall.Open(0x4d56b0, 0x9, 0x0, 0x0, 0x0, ...)
	/usr/local/go/src/pkg/syscall/zsyscall_freebsd_amd64.go:823 +0x9c
os.OpenFile(0x4d56b0, 0x9, 0x0, 0x0, 0x8, ...)
	/usr/local/go/src/pkg/os/file_unix.go:77 +0x70
os.Open(0x4d56b0, 0x9, 0x41c4c9, 0x0, 0x0)
	/usr/local/go/src/pkg/os/file.go:236 +0x54
os/exec.(*Cmd).stdin(0xc2100c0500, 0x0, 0x0, 0x0)
	/usr/local/go/src/pkg/os/exec/exec.go:146 +0x90
os/exec.(*Cmd).Start(0xc2100c0500, 0x0, 0x3)
	/usr/local/go/src/pkg/os/exec/exec.go:249 +0x277
os/exec.(*Cmd).Run(0xc2100c0500, 0x2, 0x800921f18)
	/usr/local/go/src/pkg/os/exec/exec.go:230 +0x27
main.ls(0x4cdf40, 0x1, 0x0, 0x0)
	/home/riggs/td/ls.go:14 +0xcd
main.func·001()
	/home/riggs/td/ls.go:41 +0x56
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 39 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 40 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 41 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 42 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 43 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 44 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 45 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 46 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 47 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 48 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 49 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 50 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 51 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 52 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 53 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76

goroutine 54 [runnable]:
main.func·001()
	/home/riggs/td/ls.go:39
created by main.func·002
	/home/riggs/td/ls.go:45 +0x76
fatal error: checkdead: runnable g

runtime stack:
runtime.throw(0x5bd705)
	/usr/local/go/src/pkg/runtime/panic.c:464 +0x69
checkdead()
	/usr/local/go/src/pkg/runtime/proc.c:2340 +0x13b
mput(0xc2100f4000)
	/usr/local/go/src/pkg/runtime/proc.c:2618 +0x40
stopm()
	/usr/local/go/src/pkg/runtime/proc.c:930 +0xbb
exitsyscall0(0xc210001c60)
	/usr/local/go/src/pkg/runtime/proc.c:1638 +0xd6
runtime.mcall(0x42197c)
	/usr/local/go/src/pkg/runtime/asm_amd64.s:178 +0x4b
fatal error: acquirep: invalid p state

runtime stack:
runtime.throw(0x5bd602)
	/usr/local/go/src/pkg/runtime/panic.c:464 +0x69
acquirep(0xc21000f140)
	/usr/local/go/src/pkg/runtime/proc.c:2275 +0xe5
runtime.mstart()
	/usr/local/go/src/pkg/runtime/proc.c:603 +0x135
exit status 2