Re: [PATCH] s390/kexec: Consolidate crash_map/unmap_reserved_pages() and arch_kexec_protect(unprotect)_crashkres()

2016-04-01 Thread Xunlei Pang
On 2016/04/02 at 01:41, Michael Holzheu wrote: > Hello Xunlei again, > > Some initial comments below... > > On Wed, 30 Mar 2016 19:47:21 +0800 > Xunlei Pang wrote: > >> Commit 3f625002581b ("kexec: introduce a protection mechanism >> for the crashkernel reserved memory") is a similar mechanism >>

Re: [PATCH 1/2] kexec: update VMCOREINFO for compound_order/dtor

2016-04-01 Thread Andrew Morton
On Tue, 1 Mar 2016 06:14:32 + Atsushi Kumagai wrote: > makedumpfile refers page.lru.next to get the order of compound pages > for page filtering. However, now the order is stored in page.compound_order, > hence VMCOREINFO should be updated to export the offset of > page.compound_order. > >

Re: [PATCH v15 00/20] arm64 kexec kernel patches v15

2016-04-01 Thread Geoff Levand
Hi, On Fri, 2016-04-01 at 09:59 +0800, Dave Young wrote: > Geoff, for easier to review maybe you can send kexec patches first > then AKASHI Takahiro > can send the kdump patches as a standalone patchset? Marc Zyngier specifically asked for an integrated set of patches for easier review. I will k

Re: [PATCH] s390/kexec: Consolidate crash_map/unmap_reserved_pages() and arch_kexec_protect(unprotect)_crashkres()

2016-04-01 Thread Michael Holzheu
Hello Xunlei again, Some initial comments below... On Wed, 30 Mar 2016 19:47:21 +0800 Xunlei Pang wrote: > Commit 3f625002581b ("kexec: introduce a protection mechanism > for the crashkernel reserved memory") is a similar mechanism > for protecting the crash kernel reserved memory to previous >

Re: [PATCH] s390/kexec: Consolidate crash_map/unmap_reserved_pages() and arch_kexec_protect(unprotect)_crashkres()

2016-04-01 Thread Michael Holzheu
Hello Xunlei, This patch can has potential to create some funny side effects. Especially the change from memblock_remove() to memblock_reserve() and the later call of reserve_crashkernel(). Give me some time. I will look into this next week. Michael On Wed, 30 Mar 2016 19:47:21 +0800 Xunlei Pan

Re: [PATCH] ARM: kexec: fix crashkernel= handling

2016-04-01 Thread Russell King - ARM Linux
On Wed, Mar 30, 2016 at 09:27:08AM -0400, Vivek Goyal wrote: > On Wed, Mar 30, 2016 at 02:05:30PM +0100, Russell King - ARM Linux wrote: > > On Wed, Mar 30, 2016 at 06:09:22PM +0530, Pratyush Anand wrote: > > > On 30/03/2016:09:46:38 AM, Dave Young wrote: > > > > Hi, Russell > > > > > > > > A long

Re: [PATCH v4] Improve the performance of --num-threads -d 31

2016-04-01 Thread Minfei Huang
On 04/01/16 at 07:21pm, "Zhou, Wenjian/周文剑" wrote: > On 04/01/2016 02:27 PM, Minfei Huang wrote: > >On 03/31/16 at 05:09pm, "Zhou, Wenjian/周文剑" wrote: > >>Hello Minfei, > >> > >>Thanks for your results. > >>And I have some questions. > >> > >>On 03/31/2016 04:38 PM, Minfei Huang wrote: > >>>Hi, Zho

Re: [PATCH v4] Improve the performance of --num-threads -d 31

2016-04-01 Thread Zhou, Wenjian/周文剑
On 04/01/2016 02:27 PM, Minfei Huang wrote: On 03/31/16 at 05:09pm, "Zhou, Wenjian/周文剑" wrote: Hello Minfei, Thanks for your results. And I have some questions. On 03/31/2016 04:38 PM, Minfei Huang wrote: Hi, Zhou. I have tested the increasing patch on 4T memory machine. makedumpfile fails

Re: [PATCH v15 17/20] arm64: kdump: implement machine_crash_shutdown()

2016-04-01 Thread Mark Rutland
On Fri, Apr 01, 2016 at 05:45:09PM +0900, AKASHI Takahiro wrote: > On Thu, Mar 31, 2016 at 11:10:38AM +0100, Mark Rutland wrote: > > On Thu, Mar 31, 2016 at 09:12:32AM +0100, Marc Zyngier wrote: > > > On 31/03/16 08:57, AKASHI Takahiro wrote: > > > > On Mon, Mar 21, 2016 at 01:29:28PM +, James

Re: [PATCH v15 17/20] arm64: kdump: implement machine_crash_shutdown()

2016-04-01 Thread AKASHI Takahiro
On Thu, Mar 31, 2016 at 11:10:38AM +0100, Mark Rutland wrote: > On Thu, Mar 31, 2016 at 09:12:32AM +0100, Marc Zyngier wrote: > > On 31/03/16 08:57, AKASHI Takahiro wrote: > > > On Mon, Mar 21, 2016 at 01:29:28PM +, James Morse wrote: > > >> On 18/03/16 18:08, James Morse wrote: > > >>> On 14/0