I think there's something not quite right with the fs/dcache.c
commit 75a6f82a0d10 ("freeing unlinked file indefinitely delayed").When running my old tmpfs swapping load (two repetitive make -j20 kernel builds, one on tmpfs, one on ext4 over loop over tmpfs file, in limited memory with plenty of swapping; rm -rf of both trees in between the builds): one of the builds, always the ext4 so far, fails after several hours, one or another header file "No such file or directory", but the file's there when I check the tree afterwards. Sounds like a dcache problem, and 75a6f82a0d10 seemed the only likely candidate, so I experimented with reverting it yesterday, and ran successfully for 24 hours. That's a little too soon to be sure (I've set another run going this morning), but I'd say 90% certain that is to blame, and thought I'd better alert you sooner than later - you'll probably guess what's the matter long before I get back to check today's run. (I saw exactly the same symptom two months ago; but that was just before you put in 2159184ea01e "d_walk() might skip too much", which fixed it back then.) Hugh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
