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@chipsahoy1.bsky.social

29 followers 120 following 2 posts

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Reposted

Matt Novak

@paleofuture.bsky.social

I believe the Americans will greet Nintendo as liberators

Based Sonic the Hedgehog @sonic.bsky.social · Jul 7

July 7, 2025 at 5:10 PM

Reposted

Aaron Rupar

@atrupar.com

Jim Acosta announces on air that he's leaving CNN and says, "it is never a good time to bow down to a tyrant ... don't give in to the lies."

January 28, 2025 at 4:01 PM

Reposted

eliza🌻

@elizas.website

systems programming is so cool

// There's a weird behavior in QEMU where, apparently, when we unmask
// the PIT interrupt, it might fire spuriously *as soon as its
// unmasked*, even if we haven't actually done an `sti`. I don't get
// this and it seems wrong, but it seems to happen occasionally with the
// default QEMU acceleration, and pretty consistently with `-machine
// accel=kvm`, so *maybe* it can also happen on a real computer?
//
// Anyway, because of this, we can't unmask the PIT interrupt until
// after we've actually initialized the interrupt controller static.
// Otherwise, if we unmask it before initializing the static (like we
// used to), the interrupt gets raised immediately, and when the ISR
// tries to actually send an EOI to ack it, it dereferences
// uninitialized memory and the kernel just hangs. So, we wait to do it
// until here.
//
// The fact that this behavior exists at all makes me really, profoundly
// uncomfortable: shouldn't `cli` like, actually do what it's supposed
// to? But, we can just choose to unmask the PIT later and it's fine, I
// guess...
controller.unmask_isa_irq(IsaInterrupt::PitTimer);

December 28, 2024 at 9:54 PM

Reposted

smt

@smt.rip

shoutout usbtreeview, insanely useful & functional free software that actually shows you what the fuck is happening with usb devices so you can try and figure shit out w/ different hubs or disconnects or anything else that usb makes really annoyingly opaque

www.uwe-sieber.de/usbtreeview_...

USB Device Tree Viewer

www.uwe-sieber.de

November 27, 2024 at 7:03 PM