Brave tab crashes on youtube when it's memory footprint reaches 4GB

[EnderShadow]

Description

When watching youtube streams with many chat messages the tab will crash with a SIG_TRAP exception. This happens once the memory footprint for the tab reaches 4GB as seen in brave's task manager. This issue has also been happening for a while.

Steps to Reproduce

1. Watch a live stream from a popular streamer (for example, Ina from Hololive EN)
2. Wait until the tab's memory footprint reaches 4GB

Actual result:

The tab crashes usually with a SIG_TRAP exception

Expected result:

The tab does not crash

Reproduces how often:

This easily reproduces.

Brave version (brave://version info)

Brave: 1.24.86 Chromium: 90.0.4430.212 (Official Build) (64-bit)
Revision: e3cd97fc771b893b7fd1879196d1215b622c2bed-refs/branch-heads/4430@{#1429}
OS: Linux

Version/Channel Information:

• Can you reproduce this issue with the current release? Yes
• Can you reproduce this issue with the beta channel? Untested
• Can you reproduce this issue with the nightly channel? Untested

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields? No
• Does the issue resolve itself when disabling Brave Rewards? No
• Is the issue reproducible on the latest version of Chrome? No

Miscellaneous Information:

This may occur when the tab reaches 4GB usage in general, but I haven't tested that. It's also possible that this is youtube.com/sw.js causing the issue.

[ryanbr]

Does adding ||youtube.com/sw.js into brave://adblock help? @EnderShadow

[EnderShadow]

I'll test it and report back

[EnderShadow]

The tab still crashed. Apparently it also occurs on past livestreams as well.

[ryanbr]

How does youtube get to 4G in size? What does ≡ -> More Tools -> Task Manager show

I would try, turning off GPU acceleration via brave://settings/system, disable ALL extensions. And failing that a new profile.

Could try in a clean Brave beta install, with no extensions also.,

[EnderShadow]

Hardware acceleration is already off. I'll do some more testing.

[EnderShadow]

Hmm, apparently it has nothing to do with the memory reaching 4GB. I now have no clue what the cause is, just that it happens only on youtube when watching livestreams. I assume lots of comments are still the reason, but I have no clue if that's actually true.

[rebron]

@EnderShadow Can you update to 1.31.87 and let us know if you're still seeing this issue?

[EnderShadow]

Yes I will. I'll let you know if it occurs again

[EnderShadow]

Yeah, I've still had it a few times. Sometimes it's a SIG_KILL signal though