Messages in this thread | | | Subject | Re: Linux 2.6.33.8 | From | Mike Galbraith <> | Date | Fri, 01 Apr 2011 06:35:55 +0200 |
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On Thu, 2011-03-31 at 20:22 +0200, Carsten Emde wrote: > Greg, > > > I'm announcing the release of the 2.6.33.8 kernel. > > > > This is primarily for the use of those people who are stuck using the > > .33-rt kernel. Anyone else who really wants to use the .33 kernel tree > > is welcome to use this one as well. > Thanks a lot for your work. It's highly appreciated. > > While preparing 2.6.33.8/9 plus PREEMPT_RT patches for quality > assurance in our farm, I found that the "halt" command no longer > powers down the pretest machine (i7/Gulftown); this misbehavior occurs > with and without the PREEMPT_RT patches. > > 2.6.33.7: > # halt > sd 0:0:0:0: [sda] Synchronizing SCSI cache > sd 0:0:0:0: [sda] Stopping disk > sd 2:0:0:0: [sdb] Synchronizing SCSI cache > sd 2:0:0:0: [sdb] Stopping disk > The machine is powered down. > > 2.6.33.8: > sd 0:0:0:0: [sda] Synchronizing SCSI cache > sd 0:0:0:0: [sda] Stopping disk > sd 2:0:0:0: [sdb] Synchronizing SCSI cache > sd 2:0:0:0: [sdb] Stopping disk > ACPI: Preparing to enter system sleep state S5 > Disabling non-boot CPUs ... > The machine is NOT powered down. Can be powered down only by pulling > the power plug or holding the on/off button for 5 seconds.
(FWIW, my x3550 M3 (E5620) and Q6600 power down fine with 2.6.33.9-rt30)
> Bisecting from 2.6.33.7 to 2.6.33.8 revealed: > 74a6e0fd8fc216cfa5edcde4bd356a8972cbc74c is the first bad commit > commit 74a6e0fd8fc216cfa5edcde4bd356a8972cbc74c > Author: H. Peter Anvin <hpa@linux.intel.com> > Date: Fri Dec 10 23:57:04 2010 -0500 > > x86, hotplug: Use mwait to offline a processor, fix the legacy case > > upstream ea53069231f9317062910d6e772cca4ce93de8c8 > x86, hotplug: Use mwait to offline a processor, fix the legacy case
The question would appear to be does mainline beyond this point exhibit the same symptom?
-Mike
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