On Tue, 18 Apr 2006 12:26:37 +1000, [email protected] said: > I am not getting any kernel messages when a filesystem fills up. Is this > facility still available or is it now configurable? > # dd if=/dev/zero of=/opt/xx > dd: writing to `/opt/xx': No space left on device The kernel hands the program a ENOSPC back. The program decides what to do. Emitting a kernel message as well just means that instead of /home being full, in a few minutes /home *and* /var will be full... ;) If you have an actual concern about a full file system, the *RIGHT* thing to do is to run a userspace program that does a statfs() every once in a while and issues a warning when the partition is at 97% or so - so that you can act *before* it gets full. This is a case where proactive can actually *do* something, but being reactive really can't. Yes, the kernel does issue printk()s for other things like I/O errors. But you can *see* a "disk full" coming, whereas you can't (usually) predict an I/O error (except for at the end of a CDROM with a buggy ide-cd.c ;)
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