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Revert "bump rust to 1.82.0 (#3308)" #3320

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@brooksprumo brooksprumo commented Oct 25, 2024

Problem

I'm experiencing SIGILL crashes due to invalid opcodes. Maybe it's related to the recent rust 1.82.0 upgrade? Getting a revert PR going so it'll be ready as needed.

I started up two nodes with master, just after the upgrade of rust to 1.82.0 (f8b33755f6b08d03f020bbeae4fd9724f2a407d3). Both nodes crashed. Upon investigating the syslog, both had:

Oct 25 20:20:00 localhost kernel: [6027386.359788] traps: solRspndrGossip[2670083] trap invalid opcode ip:5560731be7d7 sp:7ec4429bd840 error:0 in agave-validator[55607252e000+246e000]
Oct 25 20:20:24 localhost systemd[1]: sol.service: Main process exited, code=killed, status=4/ILL

I built the binaries locally on each machine. I retried on one of the machines three times, and got the same crash each time. I then kept the same commit checked out and built with rust 1.81.0 and there were no more crashes.

Summary of Changes

This reverts commit ed5e30d.

@brooksprumo brooksprumo marked this pull request as ready for review October 25, 2024 23:32
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