Messages in this thread | | | Date | Thu, 5 May 2011 13:27:58 -0700 | From | Greg KH <> | Subject | Re: [PATCH] reboot: disable usermodehelper to prevent fs access |
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On Thu, May 05, 2011 at 01:32:05PM +0200, Kay Sievers wrote: > From: Kay Sievers <kay.sievers@vrfy.org> > Subject: [PATCH] reboot: disable usermodehelper to prevent fs access > > In case CONFIG_UEVENT_HELPER_PATH is not set to "", which it > should be on every system, the kernel forks processes during > shutdown, which try to access the rootfs, even when the > binary does not exist. It causes exceptions and long delays in > the disk driver, which gets read requests at the time it tries > to shut down the disk. > > This patch disables all kernel-forked processes during reboot to > allow a clean poweroff.
Should this also be backported to the -stable kernels as people are hitting this problem already today, right?
thanks,
greg k-h
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