Voice messages in chat slows down Element/Crashes to blank page

[lunks]

Steps to reproduce

1. Where are you starting? What can you see?
   I open a chat with several audio messages from a bridged WhatsApp group.

2. What do you click?
   I type a message or stay in the chat message.

Outcome

What did you expect?

Normal behavior, no slowdowns or crashes

What happened instead?

Typing is very sluggish; sometimes, it goes to a white page just by keeping the chat open. It looks related to downloading/loading the voice messages. If I wait long enough, it stabilizes. But if I switch back to another conversation and then back to it, the problem persists.

Running from the command line, I see this in the logs:

<--- Last few GCs --->

[1686:0x7fc719962000]     7869 ms: Scavenge 149.2 (161.0) -> 148.5 (168.3) MB, 43.35 / 0.00 ms  (average mu = 1.000, current mu = 1.000) allocation failure;


<--- JS stacktrace --->

[1686:1008/194324.308983:ERROR:v8_initializer.cc(771)] V8 javascript OOM (Scavenger: semi-space copy).

I can't run /rageshake since Element is crashing, but let me know if there's more needed to investigate the issue.

Operating system

macOS 13.4.1 x64, running inside a QEMU VM (but reproducible on M1 Macs, too)

Application version

Element 1.11.45

How did you install the app?

brew install Element, but has since been updated by Element's updater

Homeserver

Synapse 1.93.0

Will you send logs?

Yes

[t3chguy]

Duplicate of element-hq/element-web#26239