Re: [RFC][PATCH] Reset PCIe devices to address DMA problem on kdump with iommu

2012-08-05 Thread Takao Indoh
Hi Vivek, (2012/08/03 20:46), Vivek Goyal wrote: On Fri, Aug 03, 2012 at 08:24:31PM +0900, Takao Indoh wrote: Hi all, This patch adds kernel parameter reset_pcie_devices which resets PCIe devices at boot time to address DMA problem on kdump with iommu. When this parameter is specified

Re: [RFC][PATCH] Reset PCIe devices to address DMA problem on kdump with iommu

2012-08-05 Thread Takao Indoh
Hi Don, (2012/08/06 13:09), Don Dutile wrote: On 08/03/2012 07:24 AM, Takao Indoh wrote: Hi all, This patch adds kernel parameter reset_pcie_devices which resets PCIe devices at boot time to address DMA problem on kdump with iommu. When this parameter is specified, a hot reset is triggered

[RFC][PATCH] Reset PCIe devices to address DMA problem on kdump with iommu

2012-08-03 Thread Takao Indoh
tor blacks out when the link between the port and VGA controller was reset. So this patch does not reset the port whose child endpoint is VGA device. Any comments would be appreciated. Signed-off-by: Takao Indoh --- Documentation/kernel-parameters.txt |4 + drivers/pci/quirks.c

[RFC][PATCH] Reset PCIe devices to address DMA problem on kdump with iommu

2012-08-03 Thread Takao Indoh
out when the link between the port and VGA controller was reset. So this patch does not reset the port whose child endpoint is VGA device. Any comments would be appreciated. Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com --- Documentation/kernel-parameters.txt |4 + drivers/pci/quirks.c

Re: [PATCH] x86: revert "x86: Fix S4 regression"

2012-07-24 Thread Takao Indoh
(2012/07/25 0:55), Cong Wang wrote: On Mon, 2012-07-23 at 20:22 +0900, Takao Indoh wrote: (2012/07/23 19:00), Dave Young wrote: On 07/17/2012 11:15 AM, Takao Indoh wrote: Hi Cong, When I tested kdump with 3.5.0-rc6 kernel, I found a problem of kdump kernel's panic in find_early_table_space

Re: [PATCH] x86: revert x86: Fix S4 regression

2012-07-24 Thread Takao Indoh
(2012/07/25 0:55), Cong Wang wrote: On Mon, 2012-07-23 at 20:22 +0900, Takao Indoh wrote: (2012/07/23 19:00), Dave Young wrote: On 07/17/2012 11:15 AM, Takao Indoh wrote: Hi Cong, When I tested kdump with 3.5.0-rc6 kernel, I found a problem of kdump kernel's panic in find_early_table_space

Re: [PATCH] x86: revert "x86: Fix S4 regression"

2012-07-23 Thread Takao Indoh
(2012/07/23 19:00), Dave Young wrote: > On 07/17/2012 11:15 AM, Takao Indoh wrote: > >> Hi Cong, >> >> When I tested kdump with 3.5.0-rc6 kernel, I found a problem of kdump >> kernel's panic in find_early_table_space(). >> >> init_memory_mapping: [

Re: [PATCH] x86: revert x86: Fix S4 regression

2012-07-23 Thread Takao Indoh
(2012/07/23 19:00), Dave Young wrote: On 07/17/2012 11:15 AM, Takao Indoh wrote: Hi Cong, When I tested kdump with 3.5.0-rc6 kernel, I found a problem of kdump kernel's panic in find_early_table_space(). init_memory_mapping: [mem 0x-0x36ffafff] Kernel panic - not syncing: Cannot

Re: [PATCH] x86: revert "x86: Fix S4 regression"

2012-07-16 Thread Takao Indoh
area is available and it is not sufficient for pgtable (it seems that about 1.8MB area is needed for pgtable). This problem is fixed by your revert patch. I hope this patch gets merged. Thanks, Takao Indoh (2012/06/12 14:21), Cong Wang wrote: > From: Cong Wang > > This reverts the

Re: [PATCH] x86: revert x86: Fix S4 regression

2012-07-16 Thread Takao Indoh
gets merged. Thanks, Takao Indoh (2012/06/12 14:21), Cong Wang wrote: From: Cong Wang xiyou.wangc...@gmail.com This reverts the following commit: commit 8548c84da2f47e71bbbe300f55edb768492575f7 Author: Takashi Iwai ti...@suse.de Date: Sun Oct 23 23:19:12 2011 +0200

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