Bryan Cantrill
@bcantrill.bsky.social
Co-founder and CTO of Oxide Computer Company. According to Field of Schemes, "tech exec and Oakland A's fan" -- but more of an Oakland Ballers fan now.
Pinned
Reposted by Bryan Cantrill
Hey hey! We recently tripped over a ZFS data corruption bug–introduced over 18 years ago! @bcantrill.bsky.social and I discuss with members of the Oxide team as well as Matt Ahrens, the co-inventor of ZFS.
Oxide and Friends 11/24/2025 -- A Grown-up ZFS Data Corruption Bug
YouTube video by Oxide Computer Company
youtu.be
November 25, 2025 at 11:23 PM
Hey hey! We recently tripped over a ZFS data corruption bug–introduced over 18 years ago! @bcantrill.bsky.social and I discuss with members of the Oxide team as well as Matt Ahrens, the co-inventor of ZFS.
This is despicable, but I am grateful to (non-scout) Pete Hagseth for giving me the subject of my Scoutmaster Minute tonight!
Documents show the U.S. military is planning to sever all ties with the organization formerly known as the Boy Scouts n.pr/3M48mr2
U.S. ready to cut support to Scouts, accusing them of attacking 'boy-friendly spaces'
Documents show the U.S. Military is planning to sever all ties with the organization formally known as the Boy Scouts
n.pr
November 25, 2025 at 3:26 PM
This is despicable, but I am grateful to (non-scout) Pete Hagseth for giving me the subject of my Scoutmaster Minute tonight!
On Monday, @ahl.bsky.social and I will be joined by members of the Oxide team to talk about a doozy: an 18-year-old ZFS data corruption bug that we recently nailed. We'll be at a special Europe-friendly time: 9a Pacific/noon Eastern/5p GMT -- join us for the wild tale!
discord.gg/QrcKGTTPrF?e...
discord.gg/QrcKGTTPrF?e...
Join the Oxide Computer Company & Friends Discord Server!
The Oxide Computer Company and friends; home of the Oxide and Friends podcast. | 4590 members
discord.gg
November 24, 2025 at 6:23 AM
On Monday, @ahl.bsky.social and I will be joined by members of the Oxide team to talk about a doozy: an 18-year-old ZFS data corruption bug that we recently nailed. We'll be at a special Europe-friendly time: 9a Pacific/noon Eastern/5p GMT -- join us for the wild tale!
discord.gg/QrcKGTTPrF?e...
discord.gg/QrcKGTTPrF?e...
Reposted by Bryan Cantrill
On Monday, OxF hosted @oxide.computer founders, @sdtuck.bsky.social and @bcantrill.bsky.social, Oxide investor Seth Winterroth, and the authors of Founder vs. Investor, Liz Zalman and @ganeumann.bsky.social. Delved into best and worst investor behavior. Check it out!
Oxide and Friends 11/17/2025 -- Founder vs. Investor with Liz Zalman and Jerry Neumann
YouTube video by Oxide Computer Company
youtu.be
November 21, 2025 at 3:19 PM
On Monday, OxF hosted @oxide.computer founders, @sdtuck.bsky.social and @bcantrill.bsky.social, Oxide investor Seth Winterroth, and the authors of Founder vs. Investor, Liz Zalman and @ganeumann.bsky.social. Delved into best and worst investor behavior. Check it out!
This was definitely a dead-dove-do-not-eat kind of a talk
November 20, 2025 at 2:08 AM
This was definitely a dead-dove-do-not-eat kind of a talk
True to our vow a few months ago, today we're having @ganeumann.bsky.social back: he and Elizabeth Zalman join @ahl.bsky.social, @sdtuck.bsky.social, Seth Winterroth, and me today to discuss their book, Founder vs. Investor.
Join us live, at a special time: 12p Pacific!
discord.gg/QrcKGTTPrF?e...
Join us live, at a special time: 12p Pacific!
discord.gg/QrcKGTTPrF?e...
Join the Oxide Computer Company & Friends Discord Server!
The Oxide Computer Company and friends; home of the Oxide and Friends podcast. | 4565 members
discord.gg
November 17, 2025 at 4:57 PM
True to our vow a few months ago, today we're having @ganeumann.bsky.social back: he and Elizabeth Zalman join @ahl.bsky.social, @sdtuck.bsky.social, Seth Winterroth, and me today to discuss their book, Founder vs. Investor.
Join us live, at a special time: 12p Pacific!
discord.gg/QrcKGTTPrF?e...
Join us live, at a special time: 12p Pacific!
discord.gg/QrcKGTTPrF?e...
Reposted by Bryan Cantrill
NEW: Epstein survivors release the most powerful PSA I have ever seen.
Make this go viral so every member of the House of Representatives sees it.
Make this go viral so every member of the House of Representatives sees it.
November 16, 2025 at 11:43 PM
NEW: Epstein survivors release the most powerful PSA I have ever seen.
Make this go viral so every member of the House of Representatives sees it.
Make this go viral so every member of the House of Representatives sees it.
Reposted by Bryan Cantrill
I love these kinds of software systems talks by @bcantrill.bsky.social
"The Complexity of Simplicity"
www.youtube.com/watch?v=Cum5...
"The Complexity of Simplicity"
www.youtube.com/watch?v=Cum5...
The Complexity of Simplicity
YouTube video by Oxide Computer Company
www.youtube.com
November 14, 2025 at 6:50 PM
I love these kinds of software systems talks by @bcantrill.bsky.social
"The Complexity of Simplicity"
www.youtube.com/watch?v=Cum5...
"The Complexity of Simplicity"
www.youtube.com/watch?v=Cum5...
Reposted by Bryan Cantrill
I know I’m a massive fan boy and can’t shut up about @oxide.computer buuuut, you should really, really watch this talk by Bryan.
It’s tremendous.
”Abstractions allow us to build software systems that do sophisticated things; they are the shoulders we stand upon - and provide to others”
It’s tremendous.
”Abstractions allow us to build software systems that do sophisticated things; they are the shoulders we stand upon - and provide to others”
November 14, 2025 at 4:11 PM
I know I’m a massive fan boy and can’t shut up about @oxide.computer buuuut, you should really, really watch this talk by Bryan.
It’s tremendous.
”Abstractions allow us to build software systems that do sophisticated things; they are the shoulders we stand upon - and provide to others”
It’s tremendous.
”Abstractions allow us to build software systems that do sophisticated things; they are the shoulders we stand upon - and provide to others”
Reposted by Bryan Cantrill
The recording is available and, as expected, it is exceptionally good! It will genuinely ignite (or re-ignite) your enthusiasm for being an engineer! Thank you, @bcantrill.bsky.social
www.youtube.com/watch?v=Cum5...
www.youtube.com/watch?v=Cum5...
November 13, 2025 at 10:54 PM
The recording is available and, as expected, it is exceptionally good! It will genuinely ignite (or re-ignite) your enthusiasm for being an engineer! Thank you, @bcantrill.bsky.social
www.youtube.com/watch?v=Cum5...
www.youtube.com/watch?v=Cum5...
November 13, 2025 at 5:22 PM
OH: "LinkedIn is really just Business Grindr"
November 12, 2025 at 9:21 PM
OH: "LinkedIn is really just Business Grindr"
Reposted by Bryan Cantrill
A bunch of folks at Oxide uncovered a tricky deadlock associated with async Rust (yes, another!), so--of [email protected] and I got the crew together to discuss. If you're writing async Rust, you'll want to know how to avoid and diagnose "Futurelock"
Oxide and Friends 11/3/2025 -- Futurelock
YouTube video by Oxide Computer Company
www.youtube.com
November 6, 2025 at 3:20 PM
A bunch of folks at Oxide uncovered a tricky deadlock associated with async Rust (yes, another!), so--of [email protected] and I got the crew together to discuss. If you're writing async Rust, you'll want to know how to avoid and diagnose "Futurelock"
Forgive me, for I have broken my vow to not tweet.
November 6, 2025 at 4:16 AM
Forgive me, for I have broken my vow to not tweet.
Reposted by Bryan Cantrill
New post: SocketAddrV6 is not roundtrip serializable 😱
A journey from an innocent property-based test at Oxide to the depths of the IPv6 specification, with tons of information about the flowinfo (and scope_id) fields. Give it a read!
A journey from an innocent property-based test at Oxide to the depths of the IPv6 specification, with tons of information about the flowinfo (and scope_id) fields. Give it a read!
`SocketAddrV6` is not roundtrip serializable · sunshowers
An investigation into some lesser-known IPv6 features.
sunshowers.io
November 4, 2025 at 5:38 PM
New post: SocketAddrV6 is not roundtrip serializable 😱
A journey from an innocent property-based test at Oxide to the depths of the IPv6 specification, with tons of information about the flowinfo (and scope_id) fields. Give it a read!
A journey from an innocent property-based test at Oxide to the depths of the IPv6 specification, with tons of information about the flowinfo (and scope_id) fields. Give it a read!
ngl that one felt good
November 4, 2025 at 4:47 PM
ngl that one felt good
A reminder that this is tonight at 5p Pacific; join us for what promises to be a lively discussion!
discord.gg/QrcKGTTPrF?e...
discord.gg/QrcKGTTPrF?e...
November 3, 2025 at 8:50 PM
A reminder that this is tonight at 5p Pacific; join us for what promises to be a lively discussion!
discord.gg/QrcKGTTPrF?e...
discord.gg/QrcKGTTPrF?e...
Neural imaging would surely reveal that my carpaccio aphasia is due to damage in the center of the brain that forms short-term food memories, a condition first popularized in Oliver Sacks's landmark book, "The Man Who Mistook His Wife for a Cheeseburger"
@bcantrill.bsky.social @ahl.bsky.social Books in the Box V might be Oxide episode of the year. I think the segue to @molly.wiki 's reviews or the Carpaccio story alone would have secured the nomination.
November 3, 2025 at 7:49 PM
Neural imaging would surely reveal that my carpaccio aphasia is due to damage in the center of the brain that forms short-term food memories, a condition first popularized in Oliver Sacks's landmark book, "The Man Who Mistook His Wife for a Cheeseburger"
A message that's more easily heard today than in the spring: if you live in Seattle (say) and want neither the sun to rise at 4a on the summer solstice nor it to rise at 9a on the winter solstice (and most people want neither of these things!), there will be DST or something like it. Happy fall!
November 3, 2025 at 12:06 AM
A message that's more easily heard today than in the spring: if you live in Seattle (say) and want neither the sun to rise at 4a on the summer solstice nor it to rise at 9a on the winter solstice (and most people want neither of these things!), there will be DST or something like it. Happy fall!
So, the episode that @ahl.bsky.social and I did on AI in higher education has an "information panel" on climate change (?) that they show on "videos related to topics prone to misinformation"?! WTAF? www.youtube.com/watch?v=Q2vc...
November 1, 2025 at 2:05 AM
So, the episode that @ahl.bsky.social and I did on AI in higher education has an "information panel" on climate change (?) that they show on "videos related to topics prone to misinformation"?! WTAF? www.youtube.com/watch?v=Q2vc...
Join us on Monday at 5p Pacific to discuss! discord.gg/QrcKGTTPrF?e...
October 31, 2025 at 9:15 PM
Join us on Monday at 5p Pacific to discuss! discord.gg/QrcKGTTPrF?e...
Reposted by Bryan Cantrill
My colleague Dave Pacheco wrote up a great description of a new (to us?) Rust async pathology--"futurelock"--another extremely sharp edge to watch out for, with no particular guardrails. Of course, we'll be talking about it with @bcantrill.bsky.social on Monday's Oxide and Friends
609 - Futurelock / RFD / Oxide
rfd.shared.oxide.computer
October 31, 2025 at 7:00 PM
My colleague Dave Pacheco wrote up a great description of a new (to us?) Rust async pathology--"futurelock"--another extremely sharp edge to watch out for, with no particular guardrails. Of course, we'll be talking about it with @bcantrill.bsky.social on Monday's Oxide and Friends
Reposted by Bryan Cantrill
On Monday, @bcantrill and I revisited an Oxide and Friends tradition: Books in the Box! We--and live listeners--share recommendations--worth a listen if you're looking for your next read!
Oxide and Friends 10/27/2025 -- Books in the Box V
YouTube video by Oxide Computer Company
youtu.be
October 29, 2025 at 9:49 PM
On Monday, @bcantrill and I revisited an Oxide and Friends tradition: Books in the Box! We--and live listeners--share recommendations--worth a listen if you're looking for your next read!