Mastodawn

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planetf1 Feb 8

The trace is consistent: ✅ 1492B Payload = PASS ❌ 1493B Payload = DROP

Because it returns zero "Packet Too Big" errors, clients loop forever (RFC4890 violation).

I'm thinking of forcing RA MTU to 1280 to stop local fragmentation entirely. Thoughts? #IPv6 #NetEng

planetf1 Feb 8

Anyone else noticing IPv6 fragmentation drops on EE/BT FTTP? 🕵️‍♂️

Investigating Private Relay stalls/battery drain and found a nasty "Silent Drop" on the upstream.

It accepts 1492B unfragmented packets but kills anything fragmented without sending ICMPv6 errors. 🧵👇

planetf1 Dec 14

Seeing persistent high CPU on Edge (Canary/Dev/Beta) on Apple Silicon?

Symptoms: After ~2hrs uptime, fans spin up despite responsive UI.

Root Cause (via sample): Thread pool livelock. Main thread is idle (mach_msg_trap), but 8 worker threads spin at 100% in ChromeMain. Persists on fresh profiles if Sync is enabled.

Anyone else seeing this?

#MicrosoftEdge #macOS #AppleSilicon #Chromium

planetf1 Dec 7

Norris is world champion #f1
Brilliant. So well done!!!

planetf1 Nov 8

been trying to use #microsoft #loop for around the last 9 months. It's not a team thing (though we do have office 365). Mostly just my notes from meetings.

getting fed up with constant auth popups, some lost data, can feel a bit clunky at times.

Back to onenote, or apple notes?

planetf1 Oct 31

my work week is suitably ended with a 'colima stop' ;-)

planetf1 Oct 4

Pepperstache Oct 3

This feels like a mastodon thing - there is a UK hospital trust trying to get rid of 132 used solar panels from demolished buildings. Schuco MPE 190 MS 06, tested in 2023 at 89% original capacity. No mountings or inverters, believe would be free for collection only from the Midlands. If anyone has a project or community group that would benefit message me for contact #solar #solarpanels @bloor @revk ?

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planetf1 Oct 4

I’ve just never felt threads as much to offer. it seems supper lightweight/spammy - obv starts with instagram then gets a whole lot worse

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planetf1 Sep 14, 2025

would not using the service be an option?

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planetf1 Sep 7, 2025

not a surprise since it’s the ‘free’ colour. (`though there are more options now?)