Date: Wed, 12 Sep 2012 15:54:30 +0300 From: Andriy Gapon <avg@FreeBSD.org> To: Lars Engels <lars.engels@0x20.net> Cc: Thomas Steen Rasmussen <thomas@gibfest.dk>, freebsd-stable@FreeBSD.org Subject: Re: Thinkpad X61s cannot boot 9.1-BETA1 Message-ID: <50508606.4040704@FreeBSD.org> In-Reply-To: <20120912113425.GK20762@e-new.0x20.net> References: <5007CFE6.6030808@intersonic.se> <500853DA.8050502@intersonic.se> <loom.20120720T160400-766@post.gmane.org> <201207311632.30938.jhb@freebsd.org> <alpine.BSF.2.00.1208211948290.2749@thinkpad.nowhere.local> <20120822093317.GW32916@e-new.0x20.net> <5034D4CD.4030301@gibfest.dk> <20120822165239.GX32916@e-new.0x20.net> <50351EA4.4040401@gibfest.dk> <20120912113425.GK20762@e-new.0x20.net>
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on 12/09/2012 14:34 Lars Engels said the following: > On Wed, Aug 22, 2012 at 08:02:12PM +0200, Thomas Steen Rasmussen wrote: >> >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> On 22-08-2012 18:52, Lars Engels wrote: >>> On Wed, Aug 22, 2012 at 02:47:09PM +0200, Thomas Steen Rasmussen wrote: >>>> >>>> On 22-08-2012 11:33, Lars Engels wrote: >>>>> >>>>> I have a T61 running 9.1-BETA1 (with PC-BSD). In most cases it is >>>>> booting fine, but from time to time it hangs at boot time but the last >>>>> lines are uhub0: ... to uhub4 >>>>> Is that the same or a different issue? >>>> Hello, >>>> >>>> I have that exact issue on an X301 after upgrading from 9.0 to >>>> 9-STABLE a little while ago. It feels like it happens mostly when >>>> rebooting from Windows to FreeBSD (dualboot machine), but I've >>>> seen it from a cold boot as well. I've never seen it twice in >>>> a row - turning the machine off and on again (by holding the >>>> power button down) and it boots normally the next time. >>>> >>>> I am willing to test patches or enable extra debugging, or >>>> help out any other way I can :) >>> >>> Have you ever seen that with verbose boot enabled? >> Hello, >> >> No, but I can boot verbosely the next times I boot and see if it comes up ? > > Meanwhile I found out what's the cause of it. On 9.x it only hung from > time to time, but I tried a few weeks old CURRENT and it hung at every > boot at the same time. > With enabled verbose boot it looked like this: > http://bsd-geek.de/FreeBSD/IMAG0190.jpg > > Then I removed the AC cable and booted from battery and that worked. So > it seems to me that some ACPI change in CURRENT made the situation even > worse. > Could you try to play with different eventtimer settings (preferably in current) ? You can use this thread / PR as a guide: http://thread.gmane.org/gmane.os.freebsd.devel.amd64/14480/focus=14495 The place where boot stop looks suspiciously close to the place where timer interrupts should start driving the system. -- Andriy Gapon
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