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x/exp/shiny: example/basic crashes on window move darwin #12268

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jnjackins opened this issue Aug 22, 2015 · 3 comments
Closed

x/exp/shiny: example/basic crashes on window move darwin #12268

jnjackins opened this issue Aug 22, 2015 · 3 comments
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@jnjackins
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go version: go version devel +2468227 Fri Aug 21 22:32:43 2015 +0000 darwin/amd64
golang/x/exp: tip (a5b2ce41f70b6be92fbee9c4d6ef52738e35a8c9)

The following happens the moment I click the window title bar:

$ go run main.go 
2015/08/22 13:02:53 sendLifecycle: StageAlive
2015/08/22 13:02:53 sendLifecycle: StageVisible
2015/08/22 13:02:53 sendLifecycle: StageFocused
fatal error: unexpected signal during runtime execution
[signal 0xb code=0x1 addr=0x10 pc=0x7fff8c38a0e9]

runtime stack:
runtime.throw(0x417a9c0, 0x2a)
    /Users/jnj/src/go/src/runtime/panic.go:527 +0x90
runtime.sigpanic()
    /Users/jnj/src/go/src/runtime/sigpanic_unix.go:12 +0x5a

goroutine 1 [syscall, locked to thread]:
runtime.cgocall(0x4003400, 0xc82005de10, 0xc800000000)
    /Users/jnj/src/go/src/runtime/cgocall.go:120 +0x11b fp=0xc82005ddf0 sp=0xc82005ddc0
golang.org/x/exp/shiny/driver/gldriver._Cfunc_startDriver()
    golang.org/x/exp/shiny/driver/gldriver/_obj/_cgo_gotypes.go:128 +0x31 fp=0xc82005de10 sp=0xc82005ddf0
golang.org/x/exp/shiny/driver/gldriver.main(0x4189c08, 0x0, 0x0)
    /Users/jnj/src/golang.org/x/exp/shiny/driver/gldriver/cocoa.go:68 +0x193 fp=0xc82005de90 sp=0xc82005de10
golang.org/x/exp/shiny/driver/gldriver.Main(0x4189c08)
    /Users/jnj/src/golang.org/x/exp/shiny/driver/gldriver/gldriver.go:26 +0x30 fp=0xc82005df20 sp=0xc82005de90
golang.org/x/exp/shiny/driver.main(0x4189c08)
    /Users/jnj/src/golang.org/x/exp/shiny/driver/driver_darwin.go:15 +0x21 fp=0xc82005df30 sp=0xc82005df20
golang.org/x/exp/shiny/driver.Main(0x4189c08)
    /Users/jnj/src/golang.org/x/exp/shiny/driver/driver.go:24 +0x21 fp=0xc82005df40 sp=0xc82005df30
main.main()
    /Users/jnj/src/golang.org/x/exp/shiny/example/basic/main.go:84 +0x23 fp=0xc82005df50 sp=0xc82005df40
runtime.main()
    /Users/jnj/src/go/src/runtime/proc.go:111 +0x2b0 fp=0xc82005dfa0 sp=0xc82005df50
runtime.goexit()
    /Users/jnj/src/go/src/runtime/asm_amd64.s:1696 +0x1 fp=0xc82005dfa8 sp=0xc82005dfa0

goroutine 17 [chan receive, locked to thread]:
golang.org/x/exp/shiny/driver/gldriver.drawgl(0x44578a0)
    /Users/jnj/src/golang.org/x/exp/shiny/driver/gldriver/cocoa.go:87 +0xd1

goroutine 5 [chan receive]:
main.main.func1(0x47a42e0, 0x4208d40)
    /Users/jnj/src/golang.org/x/exp/shiny/example/basic/main.go:52 +0x65d
golang.org/x/exp/shiny/driver/gldriver.driverStarted.func1()
    /Users/jnj/src/golang.org/x/exp/shiny/driver/gldriver/cocoa.go:75 +0x47
created by golang.org/x/exp/shiny/driver/gldriver.driverStarted
    /Users/jnj/src/golang.org/x/exp/shiny/driver/gldriver/cocoa.go:77 +0x2b

goroutine 18 [select]:
golang.org/x/exp/shiny/driver/internal/pump.(*Pump).run(0xc820090080)
    /Users/jnj/src/golang.org/x/exp/shiny/driver/internal/pump/pump.go:62 +0x4df
created by golang.org/x/exp/shiny/driver/internal/pump.Make
    /Users/jnj/src/golang.org/x/exp/shiny/driver/internal/pump/pump.go:15 +0x116

goroutine 19 [runnable, locked to thread]:
golang.org/x/exp/shiny/driver/gldriver.drawLoop(0xc8200600e0, 0x44121c0)
    /Users/jnj/src/golang.org/x/exp/shiny/driver/gldriver/cocoa.go:117 +0x2a6
created by golang.org/x/exp/shiny/driver/gldriver.(*screenImpl).NewWindow
    /Users/jnj/src/golang.org/x/exp/shiny/driver/gldriver/screen.go:103 +0x28e

goroutine 34 [syscall, locked to thread]:
runtime.goexit()
    /Users/jnj/src/go/src/runtime/asm_amd64.s:1696 +0x1
exit status 2
@ianlancetaylor ianlancetaylor added this to the Unreleased milestone Aug 22, 2015
@nigeltao nigeltao assigned crawshaw and unassigned nigeltao Aug 23, 2015
@adg
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adg commented Aug 24, 2015

Can reproduce this on my 10.10.4 machine.

@crawshaw
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As the stack trace isn't helpful, here's what lldb has to say:

* thread #1: tid = 0x21283a, 0x00007fff929060e9 libobjc.A.dylib`objc_msgSend + 41, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=EXC_I386_GPFLT)
  * frame #0: 0x00007fff929060e9 libobjc.A.dylib`objc_msgSend + 41
    frame #1: 0x00007fff85c19cfb AppKit`forwardMethod + 126
    frame #2: 0x00007fff85c19cfb AppKit`forwardMethod + 126
    frame #3: 0x00007fff85d2230b AppKit`-[NSTitledFrame mouseDown:] + 87
    frame #4: 0x00007fff85d222ab AppKit`-[NSThemeFrame mouseDown:] + 68
    frame #5: 0x00007fff85c19cfb AppKit`forwardMethod + 126
    frame #6: 0x00007fff85c19cfb AppKit`forwardMethod + 126
    frame #7: 0x00007fff85d2205d AppKit`-[NSTitlebarView mouseDown:] + 90
    frame #8: 0x00007fff862922dc AppKit`-[NSWindow _reallySendEvent:isDelayedEvent:] + 14125
    frame #9: 0x00007fff85c21c86 AppKit`-[NSWindow sendEvent:] + 470
    frame #10: 0x00007fff85c1e212 AppKit`-[NSApplication sendEvent:] + 2504
    frame #11: 0x00007fff85b47b68 AppKit`-[NSApplication run] + 711
    frame #12: 0x000000000405b4fa main`runtime.asmcgocall + 106 at asm_amd64.s:690
    frame #13: 0x000000000420a200 main`runtime.g0 + 64

I'll take a look today.

@gopherbot
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CL https://golang.org/cl/13871 mentions this issue.

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@crawshaw @jnjackins @ianlancetaylor @adg @nigeltao @gopherbot