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Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels on boot cpu
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From:
Eric W. Biederman <ebiederm@...>
To: Andi Kleen <andi@...>
Cc: Neil Horman <nhorman@...>, <kexec@...>, <ak@...>, <vgoyal@...>, <hbabu@...>, <linux-kernel@...>
Subject:
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels on boot cpu
Date: Tuesday, November 27, 2007 - 7:19 am
Andi Kleen <andi@firstfloor.org> writes:
quoted text
> On Mon, Nov 26, 2007 at 08:47:40PM -0500, Neil Horman wrote: >> Hey all- >> I've been working on an issue lately involving multi socket x86_64 >> systems connected via hypertransport bridges. It appears that some systems, >> disable the hypertransport connections during a kdump operation when all but > the >> crashing processor gets halted in machine_crash_shutdown. This becomes a > > That would be hard to believe. Linux cannot shut down CPUs > completely (put them back to SINIT state) because there is no generic > interface for this and it might be impossible. They just get put > into a HLT loop. > > And even if they were in SINIT they would still need the HT connections > otherwise it would be impossible to ever wake them up.
If forget off the top of my head. But my memory is that if you send the proper IPI cpus go back into SINIT. However linux doesn't do this currently.
quoted text
> The way HT setup is normally done is that the BIOS sets it all up > and then it never changes (except for some error conditions that > may cause SYNC flood)
Yep.
quoted text
> It would be better to properly root cause before applying.
Agreed. Eric -
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Messages in current thread:
[PATCH] kexec: force x86_64 arches to boot kdump kernels on ...
, Neil Horman
, (Mon Nov 26, 9:47 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Tue Nov 27, 12:12 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Nov 27, 9:13 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Tue Nov 27, 9:28 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Andi Kleen
, (Tue Nov 27, 9:45 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Tue Nov 27, 10:56 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Ben Woodard
, (Tue Nov 27, 2:41 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Nov 27, 3:42 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Vivek Goyal
, (Tue Nov 27, 4:00 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Andi Kleen
, (Tue Nov 27, 6:24 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Ben Woodard
, (Tue Nov 27, 7:24 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Vivek Goyal
, (Wed Nov 28, 11:36 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Wed Nov 28, 12:02 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Wed Nov 28, 1:36 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Wed Nov 28, 2:16 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Vivek Goyal
, (Wed Nov 28, 3:05 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Wed Nov 28, 3:42 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Ben Woodard
, (Thu Nov 29, 10:16 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Thu Nov 29, 10:54 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Yinghai Lu
, (Fri Nov 30, 4:59 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Vivek Goyal
, (Fri Nov 30, 10:35 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Fri Nov 30, 10:32 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Wed Nov 28, 5:09 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Wed Nov 28, 7:27 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Ben Woodard
, (Thu Nov 29, 10:12 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Vivek Goyal
, (Fri Nov 30, 10:42 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Fri Nov 30, 10:51 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Thu Dec 6, 5:39 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Vivek Goyal
, (Thu Dec 6, 6:11 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Thu Dec 6, 8:33 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Yinghai Lu
, (Fri Dec 7, 4:50 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Yinghai Lu
, (Fri Dec 7, 5:22 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Fri Dec 7, 10:21 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Fri Dec 7, 2:36 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Fri Dec 7, 2:48 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Fri Dec 7, 1:58 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Mon Dec 10, 9:08 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Mon Dec 10, 11:43 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Tue Dec 11, 12:48 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Dec 11, 10:39 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Tue Dec 11, 11:29 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Dec 11, 2:22 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Tue Dec 11, 2:46 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Dec 11, 3:24 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Yinghai Lu
, (Tue Dec 11, 3:51 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Dec 11, 4:59 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Andi Kleen
, (Wed Dec 12, 10:21 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Wed Dec 12, 11:55 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Andi Kleen
, (Wed Dec 12, 12:07 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Wed Dec 12, 3:43 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Wed Dec 12, 4:22 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Wed Dec 12, 5:32 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Thu Dec 13, 10:39 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Andi Kleen
, (Thu Dec 13, 11:16 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Thu Dec 13, 11:32 am)
Re: [PATCH] k8: Enable legacy irqs with extended cpu ids
, Eric W. Biederman
, (Wed Dec 12, 4:43 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Ben Woodard
, (Tue Dec 11, 8:16 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Dec 11, 8:52 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Yinghai Lu
, (Tue Dec 11, 9:07 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Yinghai Lu
, (Tue Dec 11, 2:00 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Dec 11, 2:29 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Yinghai Lu
, (Tue Dec 11, 2:45 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Yinghai Lu
, (Tue Dec 11, 2:31 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Mon Dec 10, 11:39 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Mon Dec 10, 9:17 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Vivek Goyal
, (Mon Dec 10, 12:20 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, yhlu
, (Fri Dec 7, 3:19 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Fri Dec 7, 4:13 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Thu Dec 6, 10:04 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Thu Dec 6, 8:10 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Vivek Goyal
, (Fri Dec 7, 10:39 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Fri Dec 7, 10:53 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Vivek Goyal
, (Fri Dec 7, 11:16 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Fri Dec 7, 11:53 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Fri Dec 7, 2:46 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Andi Kleen
, (Tue Nov 27, 7:56 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Nov 27, 4:52 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Nov 27, 11:34 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Nov 27, 10:28 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Andi Kleen
, (Tue Nov 27, 10:43 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Nov 27, 10:48 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Tue Nov 27, 11:30 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Ben Woodard
, (Tue Nov 27, 4:50 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Nov 27, 5:05 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Tue Nov 27, 6:38 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Ben Woodard
, (Tue Nov 27, 7:15 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Tue Nov 27, 8:15 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Nov 27, 7:40 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Tue Nov 27, 8:43 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Wed Nov 28, 11:54 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Nov 27, 12:45 pm)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Andi Kleen
, (Tue Nov 27, 11:24 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Nov 27, 9:53 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Andi Kleen
, (Tue Nov 27, 6:55 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Eric W. Biederman
, (Tue Nov 27, 7:19 am)
Re: [PATCH] kexec: force x86_64 arches to boot kdump kernels...
, Neil Horman
, (Tue Nov 27, 9:28 am)
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