Messages in this thread Patch in this message |  | | | Date | Thu, 14 Mar 2002 23:00:55 -0800 | | From | Andrew Morton <> | | Subject | Re: unwanted disk access by the kernel? |
| |
Dan Maas wrote: > > I've been trying to set up my laptop for mobile use. I'm having a > problem with unwanted disk activity - even when the system is > completely idle, there is still an occasional trickle of disk writes > (which prevents the poor hard drive from ever spinning down). > > Yes, I thought this was a user-space issue too - but even booting into > a bare-bones root environment does not stop the occasional disk > access! Here is everything that's left:
Are all filesystems mounted with the `noatime' mount option?
> PID USER VSZ RSS TIME STAT COMMAND WCHAN > 7 root 0 0 00:00:00 SW [kupdated] kupdate > 6 root 0 0 00:00:00 SW [bdflush] bdflush > 5 root 0 0 00:00:00 SW [kswapd] kswapd > 4 root 0 0 00:00:00 SWN [ksoftirqd_CPU0] ksoftirqd > 1 root 1316 524 00:00:05 S init [S] select > 2 root 0 0 00:00:00 SW [keventd] context_thread > 3 root 0 0 00:00:00 SW [kapmd] apm_mainloop > 8 root 0 0 00:00:00 Z [khubd <defunct> exit
eww. Does khubd always do that? Does this patch make it behave?
--- linux-2.4.19-pre3/drivers/usb/hub.c Mon Mar 11 14:53:21 2002 +++ linux-akpm/drivers/usb/hub.c Thu Mar 14 22:59:17 2002 @@ -908,6 +908,7 @@ static int usb_hub_thread(void *__hub) */ daemonize(); + reparent_to_init(); /* Setup a nice name */ strcpy(current->comm, "khubd"); - - 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/
|  |