From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: swsusp 'disk' fails in bk-current - intel_agp at fault? Date: Tue, 29 Mar 2005 23:44:08 +0200 Message-ID: <20050329214408.GH8125@elf.ucw.cz> References: <4243D854.2010506@suse.de> <20050329181831.GB8125@elf.ucw.cz> <20050329192339.GE8125@elf.ucw.cz> <20050329205225.GF8125@elf.ucw.cz> <20050329211239.GG8125@elf.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces-qjLDD68F18O7TbgM5vRIOg@public.gmane.org Errors-To: linux-pm-bounces-qjLDD68F18O7TbgM5vRIOg@public.gmane.org To: dtor_core-yWtbtysYrB+LZ21kGMrzwg@public.gmane.org Cc: Linux-pm mailing list , Vojtech Pavlik , Stefan Seyfried , kernel list , Andy Isaacson List-Id: linux-pm@vger.kernel.org On =DAt 29-03-05 16:33:04, Dmitry Torokhov wrote: > On Tue, 29 Mar 2005 23:12:39 +0200, Pavel Machek wrote: > > > > > > I am leaning towards calling disable_usermodehelper (not writtent y= et) > > > after swsusp completes snapshotting memory. We really don't care ab= out > > > hotplug events in this case and this will allow keeping "normal" > > > resume in drivers as is. What do you think? > >=20 > > That would certianly do the trick. > >=20 > > [Or perhaps in_suspend() is slightly nicer solution? People wanted it > > for other stuff (sanity checking, like BUG_ON(in_suspend())), too....= ] > >=20 >=20 > We might want having both... Hmm... in_suspend - is it only for swsusp > (in_swsusp) or for suspend-to-ram as well? For suspend to ram we might > need slightly different rules, I don't know. A separate call will > allow more fine-grained control and will explicitely tell reader what > is happening. We currently freeze processes for suspend-to-ram, too. I guess that disable_usermodehelper is probably better and that in_suspend() should only be used for sanity checks... go with disable_usermodehelper and sorry for the noise. Pavel --=20 People were complaining that M$ turns users into beta-testers... ...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!