Photoshop crashes with extension running

Photoshop UXP Plugin API
1

Having my extension installed in running, Photoshop crashes after some time of use.
Is there a way to find what could be causing the problem?

I can post other threads from the log if necessary.

Process:               Adobe Photoshop 2021 [27978]
Path:                  /Applications/Adobe Photoshop 2021/Adobe Photoshop 2021.app/Contents/MacOS/Adobe Photoshop 2021
Identifier:            com.adobe.Photoshop
Version:               22.4.3 (22.4.3)
Code Type:             X86-64 (Native)
Parent Process:        ??? [1]
Responsible:           Adobe Photoshop 2021 [27978]
User ID:               501
Date/Time:             2021-08-05 09:59:20.975 +0100
OS Version:            macOS 11.4 (20F71)
Report Version:        12
Bridge OS Version:     5.4 (18P4663)
Anonymous UUID:        AC36F74B-FF1A-4134-AFB3-5B95AB7EBE00
Sleep/Wake UUID:       7390FB04-1EC6-41FB-A8AD-0A6115A3141B
Time Awake Since Boot: 110000 seconds
Time Since Wake:       2300 seconds
System Integrity Protection: enabled
Crashed Thread:        10  Third Party - UXP JavaScript Thread
Exception Type:        EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes:       0x0000000000000001, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY
Termination Signal:    Illegal instruction: 4
Termination Reason:    Namespace SIGNAL, Code 0x4
Terminating Process:   exc handler [27978]
Thread 0:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib          0x00007fff205f32ba mach_msg_trap + 10
1   libsystem_kernel.dylib          0x00007fff205f362c mach_msg + 60
2   com.apple.CoreFoundation        0x00007fff20721b5f __CFRunLoopServiceMachPort + 316
3   com.apple.CoreFoundation        0x00007fff2072023f __CFRunLoopRun + 1328
4   com.apple.CoreFoundation        0x00007fff2071f64c CFRunLoopRunSpecific + 563
5   com.apple.HIToolbox             0x00007fff2895dab3 RunCurrentEventLoopInMode + 292
6   com.apple.HIToolbox             0x00007fff2895d815 ReceiveNextEventCommon + 587
7   com.apple.HIToolbox             0x00007fff2895d5b3 _BlockUntilNextEventMatchingListInModeWithFilter + 70
8   com.apple.AppKit                0x00007fff22f206f2 _DPSNextEvent + 864
9   com.apple.AppKit                0x00007fff22f1eec5 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1364
10  com.adobe.Photoshop             0x000000011185dc62 0x10e87f000 + 50195554
11  com.apple.AppKit                0x00007fff22f11239 -[NSApplication run] + 586
12  com.adobe.Photoshop             0x000000011185f022 0x10e87f000 + 50200610
13  com.adobe.Photoshop             0x0000000111861580 0x10e87f000 + 50210176
14  com.adobe.Photoshop             0x000000011195e0ec 0x10e87f000 + 51245292
15  com.adobe.Photoshop             0x000000011140a068 0x10e87f000 + 45658216
16  com.adobe.Photoshop             0x000000010e884809 0x10e87f000 + 22537
17  libdyld.dylib                   0x00007fff20643f5d start + 1

Thread 10 Crashed:: Third Party - UXP JavaScript Thread
0   com.adobe.uxp.macos.alpaca.v8   0x0000000121e11762 0x121209000 + 12617570
1   com.adobe.uxp.macos.alpaca.v8   0x0000000121e0cf40 0x121209000 + 12599104
2   com.adobe.uxp.macos.alpaca.v8   0x0000000121e245f1 0x121209000 + 12695025
3   com.adobe.uxp.macos.alpaca.v8   0x0000000121fdfd15 0x121209000 + 14511381
4   com.adobe.uxp.macos.alpaca.v8   0x0000000121fe2c55 0x121209000 + 14523477
5   com.adobe.uxp.macos.alpaca.v8   0x0000000121fdf8c4 0x121209000 + 14510276
6   com.adobe.uxp.macos.alpaca.v8   0x0000000121fdce57 0x121209000 + 14499415
7   com.adobe.uxp.macos.alpaca.v8   0x0000000122070f9f 0x121209000 + 15105951
8   com.adobe.uxp.macos.alpaca.v8   0x0000000121e19081 0x121209000 + 12648577
9   com.adobe.uxp.macos.alpaca.v8   0x00000001214cd728 0x121209000 + 2901800
10  com.adobe.uxp.macos.alpaca.v8   0x0000000121495874 0x121209000 + 2672756
11  com.adobe.uxp.macos.alpaca.v8   0x00000001212be873 0x121209000 + 743539
12  com.adobe.uxp.macos.alpaca.v8   0x00000001212c797b 0x121209000 + 780667
13  com.adobe.uxp.macos.alpaca.v8   0x00000001212c2a46 0x121209000 + 760390
14  com.adobe.uxp.macos.alpaca.v8   0x00000001212c20f1 0x121209000 + 758001
15  com.adobe.uxp.macos.alpaca.v8   0x00000001212c59ce 0x121209000 + 772558
16  libsystem_pthread.dylib         0x00007fff206288fc _pthread_start + 224
17  libsystem_pthread.dylib         0x00007fff20624443 thread_start + 15
Thread 11:: First Party - UXP JavaScript Thread
0   libsystem_kernel.dylib          0x00007fff205f5cde __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff20628e49 _pthread_cond_wait + 1298
2   libc++.1.dylib                  0x00007fff20591e03 std::__1::condition_variable::__do_timed_wait(std::__1::unique_lock<std::__1::mutex>&, std::__1::chrono::time_point<std::__1::chrono::system_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > >) + 93
3   com.adobe.uxp.macos.alpaca.v8   0x00000001212d63db 0x121209000 + 840667
4   com.adobe.uxp.macos.alpaca.v8   0x00000001212c2996 0x121209000 + 760214
5   com.adobe.uxp.macos.alpaca.v8   0x00000001212c20f1 0x121209000 + 758001
6   com.adobe.uxp.macos.alpaca.v8   0x00000001212c59ce 0x121209000 + 772558
7   libsystem_pthread.dylib         0x00007fff206288fc _pthread_start + 224
8   libsystem_pthread.dylib         0x00007fff20624443 thread_start + 15
2

Hey, have you tried to use the DevTools, console and debugger, usually these two are quite efficient to track down bugs…

3

Yes, there is nothing in the logs that could indicate a problem.
I also can’t reliably reproduce this, crash seems to happen somewhat randomly, but consistently. It doesn’t seem to be related to me using the plugin actively.

4

If you leave PS idling, will it crash eventually?

5

Not sure, issue doesn’t reproduce every time and is difficult to catch.

6

Do you listen to events in your plugin, or manipulate file(s) ?

7

No, I don’t listen to any events or do anything with files.

8

Ok, maybe you could try to split your code to isolate the crashing section?

9

There’s definitely an infinite loop
So it’s either:

  • Ps causes a loop in some situations depending on the plugin actions
  • Plugin itself causes some loop and Ps doesn’t handle such behaviour (why would it :thinking:)

Got hint from this thread

10

I am quite certain my plugin doesn’t cause any loops because there is debug logging everywhere and I would see a loop in logs then.

If it’s PS causing it internally it would be great to learn which actions that I call result in such PS behavior and why.

11

OK, maybe not definitely then :sweat_smile: But I’m pretty sure it’s the loop that causes the crash :slight_smile:

12

If you want to DM me your plugin, I can try to repro on my machine.