Messages in this thread | | | Date | Mon, 10 Dec 2012 12:34:06 -0800 | From | Greg Kroah-Hartman <> | Subject | Re: [PATCH -stable 1/1] freezer: PF_FREEZER_NOSIG should be cleared along with PF_NOFREEZE |
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On Fri, Dec 07, 2012 at 03:49:22PM +0100, Oleg Nesterov wrote: > This patch is only for pre-v3.3 stable trees which backported > b40a7959 "freezer: exec should clear PF_NOFREEZE along with PF_KTHREAD". > v3.3+ doesn't need this fix. > > b40a7959 is the trivial bugfix, but unfortunately I forgot that > until 34b087e4 "freezer: kill unused set_freezable_with_signal()" > there were another only-for-kernel-threads flag, PF_FREEZER_NOSIG, > which should be cleared as well. > > See https://bugs.launchpad.net/ubuntu/+source/v86d/+bug/1080530 > The freezer fails because it expects that a PF_FREEZER_NOSIG task > doesn't need a signal. Before b40a7959 it wrongly succeeds leaving > the PF_NOFREEZE | PF_FREEZER_NOSIG task unfrozen. > > Reported-and-tested-by: Joseph Salisbury <joseph.salisbury@canonical.com> > Cc: stable@vger.kernel.org # pre v3.3 if commit b40a7959 was taken
From what I can tell, 3.0-stable didn't take this patch, so it should be fine. Ben, I don't know about 3.2, you should check this.
Oleg, thanks for doing this work, much appreciated.
greg k-h
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