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And it only took 21 hours. Linux 6.4 has a bug where it hangs on boot, but probably only 1 in 1000 boots (and rarer if using Intel hardware for some reason). It’s surprising to me that no one has noticed this, but I certainly did because our nbdkit tests which use libguestfs were randomly hanging, always at the same place early in booting the libguestfs qemu appliance: [ 0.070120] Freeing SMP alte
If you have a machine with slow hard disks and fast SSDs, and you want to use the SSDs to act as fast persistent caches to speed up access to the hard disk, then until recently you had three choices: bcache and dm-cache are both upstream, or Flashcache/EnhanceIO. Flashcache is not upstream. dm-cache required you to first sit down with a calculator to compute block offsets. bcache was the sanest of
In this 6 part series, I’m going to introduce the internals of the OCaml programming language (tutorial and other references here). This isn’t going to be very comprehensive or in-depth. It’s more of a digest of the readily available information that I found by reading the manual, header files, and some of the compiler code. It’s definitely pitched at beginners, not experts. By the end of it, you
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