From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from cantor2.suse.de ([195.135.220.15] helo=mx2.suse.de) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1Tzzn5-0006Yu-LJ for kexec@lists.infradead.org; Tue, 29 Jan 2013 01:15:12 +0000 From: Thomas Renninger Subject: Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu Date: Tue, 29 Jan 2013 02:14:54 +0100 Message-ID: <3404772.bJenOLl2bH@hammer82.arch.suse.de> In-Reply-To: <51007EF2.3090208@jp.fujitsu.com> References: <20121127004144.3604.61708.sendpatchset@tindoh.g01.fujitsu.local> <1508535.gXZDAVy6sT@hammer82.arch.suse.de> <51007EF2.3090208@jp.fujitsu.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-bounces@lists.infradead.org Errors-To: kexec-bounces+dwmw2=twosheds.infradead.org@lists.infradead.org To: Takao Indoh Cc: muneda.takahiro@jp.fujitsu.com, tokunaga.keiich@jp.fujitsu.com, linux-pci@vger.kernel.org, x86@kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, hbabu@us.ibm.com, andi@firstfloor.org, ddutile@redhat.com, ishii.hironobu@jp.fujitsu.com, hpa@zytor.com, bhelgaas@google.com, tglx@linutronix.de, yinghai@kernel.org, mingo@redhat.com, vgoyal@redhat.com, khalid@gonehiking.org On Thursday, January 24, 2013 09:23:14 AM Takao Indoh wrote: > (2013/01/23 9:47), Thomas Renninger wrote: > > On Monday, January 21, 2013 10:11:04 AM Takao Indoh wrote: > >> (2013/01/08 4:09), Thomas Renninger wrote: > > ... > > > >>> I tried the provided patches first on 2.6.32, then I verfied with > >>> 3.8-rc2 > >>> and in both cases the disk is not detected anymore in > >>> reset_devices (kexec'ed/kdump) case (but things work fine without these > >>> patches). > >> > >> So the problem that the disk is not detected was caused by exactmap > >> problem you guys are discussing? Or still not detected even if exactmap > >> problem is fixed? > > > > This problem is related to the 5 PCI resetting patches. > > Dumping worked with a 2.6.32 and a 3.8-rc2 kernel, adding the PCI > > resetting > > patches broke both. I first tried 2.6.32 and verified with 3.8-rc2 to make > > sure I didn't mess up the backport adjustings of the patches to 2.6.32. > If you have a chance please try again the patches with the latest > firmware. Not sure I can update the firmware as this is a reference platform used exactly like this in production. I also cannot see how this could help. Thomas _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec