# Photoshop crashes with extension running **URL:** \ **Category:** UXP Plugin API\ **Created:** [August 5, 2021, 9:22am UTC](https://forums.creativeclouddeveloper.com/t/photoshop-crashes-with-extension-running/3451 "2021-08-05T09:22:49Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![AAverin](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/aaverin/32/1368_2.png) [@AAverin](https://forums.creativeclouddeveloper.com/u/AAverin)\ **Post date:** [August 5, 2021, 9:22am UTC](https://forums.creativeclouddeveloper.com/t/photoshop-crashes-with-extension-running/3451/1 "2021-08-05T09:22:49Z")
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. ```auto 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::chrono::time_point > >) + 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 ``` ---
**Author:** ![Pierre\_G](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/pierre_g/32/971_2.png) [@Pierre\_G](https://forums.creativeclouddeveloper.com/u/Pierre_G)\ **Post date:** [August 5, 2021, 9:59am UTC](https://forums.creativeclouddeveloper.com/t/photoshop-crashes-with-extension-running/3451/2 "2021-08-05T09:59:41Z")
Hey, have you tried to use the DevTools, console and debugger, usually these two are quite efficient to track down bugs… ---
**Author:** ![AAverin](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/aaverin/32/1368_2.png) [@AAverin](https://forums.creativeclouddeveloper.com/u/AAverin)\ **Post date:** [August 5, 2021, 10:14am UTC](https://forums.creativeclouddeveloper.com/t/photoshop-crashes-with-extension-running/3451/3 "2021-08-05T10:14:07Z")
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. ---
**Author:** ![Pierre\_G](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/pierre_g/32/971_2.png) [@Pierre\_G](https://forums.creativeclouddeveloper.com/u/Pierre_G)\ **Post date:** [August 5, 2021, 10:35am UTC](https://forums.creativeclouddeveloper.com/t/photoshop-crashes-with-extension-running/3451/4 "2021-08-05T10:35:16Z")
If you leave PS idling, will it crash eventually? ---
**Author:** ![AAverin](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/aaverin/32/1368_2.png) [@AAverin](https://forums.creativeclouddeveloper.com/u/AAverin)\ **Post date:** [August 5, 2021, 10:56am UTC](https://forums.creativeclouddeveloper.com/t/photoshop-crashes-with-extension-running/3451/5 "2021-08-05T10:56:44Z")
Not sure, issue doesn’t reproduce every time and is difficult to catch. ---
**Author:** ![Pierre\_G](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/pierre_g/32/971_2.png) [@Pierre\_G](https://forums.creativeclouddeveloper.com/u/Pierre_G)\ **Post date:** [August 5, 2021, 11:04am UTC](https://forums.creativeclouddeveloper.com/t/photoshop-crashes-with-extension-running/3451/6 "2021-08-05T11:04:55Z")
Do you listen to events in your plugin, or manipulate file(s) ? ---
**Author:** ![AAverin](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/aaverin/32/1368_2.png) [@AAverin](https://forums.creativeclouddeveloper.com/u/AAverin)\ **Post date:** [August 5, 2021, 11:36am UTC](https://forums.creativeclouddeveloper.com/t/photoshop-crashes-with-extension-running/3451/7 "2021-08-05T11:36:34Z")
No, I don’t listen to any events or do anything with files. ---
**Author:** ![Pierre\_G](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/pierre_g/32/971_2.png) [@Pierre\_G](https://forums.creativeclouddeveloper.com/u/Pierre_G)\ **Post date:** [August 5, 2021, 11:38am UTC](https://forums.creativeclouddeveloper.com/t/photoshop-crashes-with-extension-running/3451/8 "2021-08-05T11:38:34Z")
Ok, maybe you could try to split your code to isolate the crashing section? ---
**Author:** ![Karmalakas](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/karmalakas/32/1048_2.png) [@Karmalakas](https://forums.creativeclouddeveloper.com/u/Karmalakas)\ **Post date:** [August 5, 2021, 11:40am UTC](https://forums.creativeclouddeveloper.com/t/photoshop-crashes-with-extension-running/3451/9 "2021-08-05T11:40:25Z")
> [@AAverin](#): > > ```auto > 2 com.apple.CoreFoundation 0x00007fff20721b5f __CFRunLoopServiceMachPort + 316 > 3 com.apple.CoreFoundation 0x00007fff2072023f __CFRunLoopRun + 1328 > 4 com.apple.CoreFoundation 0x00007fff2071f64c CFRunLoopRunSpecific + 563 > > ``` 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 🤔) Got hint from [this thread](https://developer.apple.com/forums/thread/124633) ---
**Author:** ![AAverin](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/aaverin/32/1368_2.png) [@AAverin](https://forums.creativeclouddeveloper.com/u/AAverin)\ **Post date:** [August 5, 2021, 12:09pm UTC](https://forums.creativeclouddeveloper.com/t/photoshop-crashes-with-extension-running/3451/10 "2021-08-05T12:09:20Z")
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. ---
**Author:** ![Karmalakas](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/karmalakas/32/1048_2.png) [@Karmalakas](https://forums.creativeclouddeveloper.com/u/Karmalakas)\ **Post date:** [August 5, 2021, 12:43pm UTC](https://forums.creativeclouddeveloper.com/t/photoshop-crashes-with-extension-running/3451/11 "2021-08-05T12:43:47Z")
OK, maybe not definitely then 😅 But I’m pretty sure it’s the loop that causes the crash 🙂 ---
**Author:** ![kerrishotts](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.creativeclouddeveloper.com/kerrishotts/32/8_2.png) [@kerrishotts](https://forums.creativeclouddeveloper.com/u/kerrishotts)\ **Post date:** [August 6, 2021, 12:42am UTC](https://forums.creativeclouddeveloper.com/t/photoshop-crashes-with-extension-running/3451/12 "2021-08-06T00:42:48Z")
If you want to DM me your plugin, I can try to repro on my machine.