Android obsidian freezes and crash due to OOM when tag name is empty #193
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The problem still exits on my Android device |
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Steps to reproduce
Note: this only happens on my Android obsidian app. On the PC obsidian it works as-intended.
Note 2: This is a stably reproducible problem on my phone
Expected Result
Actual Result
My obsidian setup
Android obsidian version 1.5.12(134)
Plugin list (I have many plugins, but they worked fine)
My hardware and OS
Sony Xperia 1V
Android 14
12GB RAM
Related issues
Found some potentially related issues
#188 #183
JS console logs
JS Console Logs with checklist plugin in empty tag filter config (freeze and crash):
The error messages here are common. They appear with/without checklist plugin and does not affect normal functionality (I included screenshot of the console log when obsidian is working normally as comparison below)
JS Memory dump with stacktrace
I tried to use Chrome's inspection tool to run a memory trace on Obsidian. I first started obsidian with some tags in the filter, which works fine. I connected the memory trace collector and then deleted all tags. App immediately freezes with one large memory allocation spike (program freezes afterwards with Android's GC repeatedly reporting OOM). I checked the mem snapshot and traces and got the following clues:
Clue 1
For the only allocation spike that took place immediately before the freeze, it seems like checklist allocated a huge string object with some PNG heading, but the content seems to be scrambled or in some binary format, which seems unusual.
Clue 2
I think this is where I made some discoveries. The owner of this string is an Object allocated by checklist as its content. It seems like it's pointing to one of the PNG file in my vault (size 487KB). This doesn't quite feel right as there's no task in a PNG file, and I think checklist shouldn't really need to load a PNG file. I checked the rest of the objects, it looks like it's loading everything in my vault into memory (canvas files, png files, etc.) I guess this is very inefficient, and can potentially cause my OOM. However, my entire vault is only around 150 MB, even if all files are loaded it shouldn't really go all the way to OOM. There might be some other factors here.
JS Console Logs with checklist plugin in non-empty tag filter config (works normally):
The main difference between the two is that, with empty tag filter, since the OOM happens fairly quickly, many plugins are unable to load due to exhausted memory (for example, omnisearch failed to load in empty-tag config but loaded with no problem in with-tag config)
Android Logcat Traces
With empty-tag checklist plugin config, the follow log shows:
Basically, once checklist plugin started loading, something (either the plugin or obsidian or else) started to allocate memory non-stop on the main thread, leading to frozen UI (as reported by Choreographer and GC). This log piece is not complete as it repeats for quite a while, during which obsidian is completely frozen. Eventually, the following exception is thrown:
Which is simply the operating system killing obsidian due to OOM.
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