Messages in this thread | | | Date | Sat, 15 Jun 2002 18:04:26 -0500 | From | Daniel Jacobowitz <> | Subject | Re: Inexplicable disk activity trying to load modules on devfs |
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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.
-- Daniel Jacobowitz Debian GNU/Linux Developer MontaVista Software Carnegie Mellon University - 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/
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