From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from e06smtp14.uk.ibm.com ([195.75.94.110]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1V0BYj-0001Up-Km for kexec@lists.infradead.org; Fri, 19 Jul 2013 14:21:26 +0000 Received: from /spool/local by e06smtp14.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 19 Jul 2013 15:12:43 +0100 Received: from b06cxnps3074.portsmouth.uk.ibm.com (d06relay09.portsmouth.uk.ibm.com [9.149.109.194]) by d06dlp01.portsmouth.uk.ibm.com (Postfix) with ESMTP id 8B42317D8025 for ; Fri, 19 Jul 2013 15:22:35 +0100 (BST) Received: from d06av03.portsmouth.uk.ibm.com (d06av03.portsmouth.uk.ibm.com [9.149.37.213]) by b06cxnps3074.portsmouth.uk.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r6JEKj4x065832 for ; Fri, 19 Jul 2013 14:20:45 GMT Received: from d06av03.portsmouth.uk.ibm.com (localhost [127.0.0.1]) by d06av03.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id r6JEKthR012156 for ; Fri, 19 Jul 2013 08:20:56 -0600 Date: Fri, 19 Jul 2013 16:20:53 +0200 From: Martin Schwidefsky Subject: Re: [PATCH v7 0/5] kdump: Allow ELF header creation in new kernel Message-ID: <20130719162053.61b37f88@mschwide> In-Reply-To: <20130719133518.GB19997@redhat.com> References: <20130717180049.3b9c6ec8@holzheu> <20130717214207.GB27633@redhat.com> <20130718124004.098b85f4@holzheu> <20130718124754.7453756e@mschwide> <20130718133541.GB785@redhat.com> <20130719085020.28daef68@mschwide> <20130719133518.GB19997@redhat.com> Mime-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=twosheds.infradead.org@lists.infradead.org To: Vivek Goyal Cc: kexec@lists.infradead.org, Heiko Carstens , linux-kernel@vger.kernel.org, Jan Willeke , HATAYAMA Daisuke , Andrew Morton , Michael Holzheu On Fri, 19 Jul 2013 09:35:18 -0400 Vivek Goyal wrote: > On Fri, Jul 19, 2013 at 08:50:20AM +0200, Martin Schwidefsky wrote: > > On Thu, 18 Jul 2013 09:35:41 -0400 > > Vivek Goyal wrote: > > > > > On Thu, Jul 18, 2013 at 12:47:54PM +0200, Martin Schwidefsky wrote: > > > > On Thu, 18 Jul 2013 12:40:04 +0200 > > > > Michael Holzheu wrote: > > > > > > > > > On Wed, 17 Jul 2013 17:42:07 -0400 > > > > > Vivek Goyal wrote: > > > > > > On Wed, Jul 17, 2013 at 06:00:49PM +0200, Michael Holzheu wrote: > > > > > > > > > > [snip] > > > > > > > > > > > > But this is all additional effort now and would not be necessary if we > > > > > > > integrate this patch series in 3.11. > > > > > > > > > > > > > > Perhaps we should let Andrew decide here. > > > > > > > > > > > > Hi Michael, > > > > > > > > > > > > Given the fact that andrew too prefers a fix to get s390 working at this > > > > > > stage can we modify s390 copy_from_oldmem() to be able to copy to > > > > > > vmalloc() memory area. > > > > > > > > > > > > For mmap(), let us disable it on s390. And rest of the cleanups w.r.t > > > > > > ELF header swap etc, let us now target that for 3.12. > > > > > > > > > > > > Sounds reasonable? > > > > > > > > > > Hi Vivek, > > > > > > > > > > Ok this is not our preferred solution but we can't expect that life is > > > > > always easy ;-) > > > > > > > > > > Our s390 kernel maintainer Martin Schwidefsky agreed to send the following > > > > > two patches upstream for 3.11: > > > > > > > > > > * s390/kdump: Disable mmap for s390 > > > > > * s390/kdump: Allow copy_oldmem_page() copy to virtual memory > > > > > > > > Patches have been added to > > > > git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git features > > > > > > > > They will go upstream with my next pull request. > > > > > > > > > > If everything related to crash dump is going through Andrew, wouldn't > > > it make sense that even these fixes go through him? > > > > > > https://git.kernel.org/cgit/linux/kernel/git/s390/linux.git/commit/?h=features&id=5a74953ff56aa870d6913ef4d81934f5c620c59d > > > > > > https://git.kernel.org/cgit/linux/kernel/git/s390/linux.git/commit/?h=features&id=191a2fa0a8d2bbb64c98f9b1976fcb37ee5eae6b > > > > Most of the architecture specific kdump patches for s390 have gone through me, > > and these two fall into that category. If you insist we can route them over > > Andrew, it just seems easier to me via the s390 tree. > > > > In this case one patch is modifying proc/vmcore.c and that's not arch > specific change only. > > Secondly, in this specific instance, these changes are in the context > of mmap() related changes which just were pushed. I find it easier > if fixes flow through same channel where previous big set of patches > flowed through. > > Hence, I was expecting that Michael will route these fixes through > Andrew. But I am not too particular about it, so go ahead and > push it to Linus. The pull request is on its way. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin. _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec