Messages in this thread | | | From | Rob Landley <> | Subject | Re: Inexplicable disk activity trying to load modules on devfs | Date | Tue, 18 Jun 2002 13:05:40 -0400 |
| |
On Saturday 15 June 2002 07:04 pm, Daniel Jacobowitz wrote: > On Sat, Jun 15, 2002 at 03:44:30PM -0700, Andrew Morton wrote: > > Daniel Jacobowitz wrote: > > > I just booted into 2.4.19-pre10-ac2 for the first time, and noticed > > > something very odd: my disk activity light was flashing at about > > > half-second intervals, very regularly, and I could hear the disk > > > moving. I was only able to track it down to which disk controller, via > > > /proc/interrupts (are there any tools for monitoring VFS activity? > > > They'd be really useful). Eventually I hunted down the program causing > > > it: xmms. > > > > > > The reason turned out to be that I hadn't remembered to build my sound > > > driver for this kernel version. Every half-second xmms tried to open > > > /dev/mixer (and failed, ENOENT). Every time it did that there was > > > actual disk activity. Easily reproducible without xmms. Reproducible > > > on any non-existant device in devfs, but not for nonexisting files on > > > other filesystems. Is something bypassing the normal disk cache > > > mechanisms here? That doesn't seem right at all. > > > > syslog activity from a printk, perhaps? > > Nope. No log activity whatsoever.
Updated atime on the /dev/blah node?
Random guess...
Rob - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |