https://jetm.github.io/blog/tags/debugging/Recent content in Debugging on Javier Tia's BlogHugo -- 0.164.0en-usSat, 08 Aug 2026 17:50:56 -0600https://jetm.github.io/blog/posts/xfs-enospc-shutdown-uninitialised-reservation/Sat, 08 Aug 2026 17:12:00 -0600https://jetm.github.io/blog/posts/xfs-enospc-shutdown-uninitialised-reservation/Six XFS shutdowns, six falsified hypotheses, and a filesystem that took itself down for lack of space on a half-empty disk. The evidence was destroyed by the crash that produced it, until I mapped a trace buffer across the reboot. The bug is one missing assignment in xfs_parent_da_args_init().