Matthew Hodgson comments

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                                            Matthew Hodgson

On un-sleeping laptop, element desktop sometimes goes entirely white (because EW has OOMed during the night)

(of course, it didn't crash overnight this time)

On un-sleeping laptop, element desktop sometimes goes entirely white (because EW has OOMed during the night)

Other postmortem v8 debuggers are https://github.com/tjfontaine/lldb-v8 (python 2, doesn't work after porting it to python 3, thanks to `RuntimeError: This resolves the SBAddress using the SBTarget from lldb.target so this...

On un-sleeping laptop, element desktop sometimes goes entirely white (because EW has OOMed during the night)

So, i caught in the act this morning, running under lldb (not using the debug electron i built yesterday). Turns out my poor man's trick of "look for string references...

On un-sleeping laptop, element desktop sometimes goes entirely white (because EW has OOMed during the night)

Hmm. indexeddb.ts has: ``` private reallySave = this.degradable((): Promise => { this.syncTs = Date.now(); // set now to guard against multi-writes ``` ...which is all very well, but i don't...

On un-sleeping laptop, element desktop sometimes goes entirely white (because EW has OOMed during the night)

Another datapoint: i set Nightly running again, breakpointed in persistSyncData, and `JSON.stringify(roomsData).length` is 143988497 bytes - so ~140MB, which really shouldn't be enough (even if allocated twice while bouncing back...

On un-sleeping laptop, element desktop sometimes goes entirely white (because EW has OOMed during the night)

An argument against overlapping persists is the fact that the memory seems to explode very rapidly (e.g. before the inspector can notice, assuming it's updating every second, as one would...

On un-sleeping laptop, element desktop sometimes goes entirely white (because EW has OOMed during the night)

So, my debug electron build is borked somehow - the Renderer immediately crashes with: ``` 3 libsystem_c.dylib 0x1af449d48 __stack_chk_fail + 96 4 Electron Framework 0x30c06d14c content::RenderFrameImpl::PrepareFrameForCommit(GURL const&, blink::mojom::CommitNavigationParams const&) +...