Hey Samuel, Yes I will take a look.
Just a quick question has this started happening recently? Is it caused by this latest patch or one the few previous ones? That would help narrow down what is going on. Thanks in advance, Milos On Sat, Feb 14, 2026, 11:33 AM Samuel Thibault <[email protected]> wrote: > Hello, > > While at such kind of obscure bug, maybe you could be interested in > checking why llvm-toolchain-21 fails to build. It builds completely > fine, but at the last minute we get > > chmod: cannot read directory > '/build/reproducible-path/llvm-toolchain-21-21.1.8/mlir/include/mlir/Conversion/MathToFuncs': > No such file or directory > > Running ls in Conversion/ shows the entry, but trying to access it fails > with ENOENT. After a reboot, access does work. > > So I guess it's the diskfs_check_lookup_cache call in diskfs_lookup > that returns -1 because it somehow recorded that the path is not there > and that negative result stays stuck there. I guess we'd need to check > in which scenario we could be missing the addition of the file (e.g. > something tries to look it up while something else in parallel a program > is adding it, and we stay with the former result). > > Samuel >
