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Charlie Stross (cstross@wandering.shop)'s status on Thursday, 09-Apr-2026 17:47:17 JST Charlie Stross

RE: https://techhub.social/@rayckeith/116370449957346533
Didn't Windows 95 do this too?!?
For fuck's sake, Apple, get your shit together and stop reinventing 30 year old 32 bit Windows bugs!
In conversation about a month ago from wandering.shop permalink
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  Third Foundation (@rayckeith@techhub.social)
  
  from Third Foundation
  
  "Software developer Photon, whose product requires running a bunch of Macs to connect to iMessage, discovered a pretty major bug: Every Mac has a hidden expiration date. After exactly 49 days, 17 hours, 2 minutes, and 47 seconds of continuous uptime, a 32-bit unsigned integer overflow in Apple’s XNU kernel freezes the internal TCP timestamp clock… ICMP (ping) keeps working. Everything else dies. The only fix most people know is a reboot" update: "They suggest that the bug may have been around since Catalina, but I’ve had a Mac server running from the Catalina days all the way through Sequoia, with months of uptime, and haven’t seen this problem. I’ve not updated the server to Tahoe yet." https://mjtsai.com/blog/2026/04/07/tahoe-tcp-overflow-bug/ https://sixcolors.com/link/2026/04/macs-crash-after-49-days-of-uptime/

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