Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2013-03-04 Thread Takao Indoh
(2013/03/05 7:00), Don Dutile wrote: On 03/03/2013 07:56 PM, 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 wi

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2013-03-04 Thread Don Dutile
On 03/03/2013 07:56 PM, 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

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2013-03-03 Thread Takao Indoh
(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 >>> res

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2013-01-29 Thread Takao Indoh
(2013/01/29 10:14), Thomas Renninger wrote: > 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 provi

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2013-01-28 Thread Thomas Renninger
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 wi

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2013-01-23 Thread Takao Indoh
(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 (ke

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2013-01-22 Thread Thomas Renninger
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 wor

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2013-01-20 Thread Takao Indoh
(2013/01/08 4:09), Thomas Renninger wrote: On Friday, December 21, 2012 08:19:05 AM Yinghai Lu wrote: On Fri, Nov 30, 2012 at 7:49 AM, MUNEDA Takahiro wrote: On Tue, 27 Nov 2012 09:42:20 +0900 (JST), Takao Indoh wrote: These patches reset PCIe devices at boot time to address DMA problem on

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2013-01-08 Thread Takao Indoh
Hi Thomas, (2013/01/09 11:32), Thomas Renninger wrote: On Tuesday, January 08, 2013 09:27:55 AM Yinghai Lu wrote: On Tue, Jan 8, 2013 at 8:50 AM, Thomas Renninger wrote: megaraid_sas can you check if your initrd for kdump kernel has that driver and module that it depends on like scsi sas tr

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2013-01-08 Thread Thomas Renninger
On Tuesday, January 08, 2013 09:27:55 AM Yinghai Lu wrote: > On Tue, Jan 8, 2013 at 8:50 AM, Thomas Renninger wrote: > > megaraid_sas > > can you check if your initrd for kdump kernel has that driver and > module that it depends on like > scsi sas transport etc ? Removing the 5 patches and the d

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2013-01-08 Thread Yinghai Lu
On Tue, Jan 8, 2013 at 8:50 AM, Thomas Renninger wrote: > megaraid_sas can you check if your initrd for kdump kernel has that driver and module that it depends on like scsi sas transport etc ? Thanks Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2013-01-07 Thread Yinghai Lu
On Mon, Jan 7, 2013 at 4:42 PM, Thomas Renninger wrote: > memmap=256M$3584M may need to change to: memmap=256M\$\$3584M Thanks Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http:/

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2013-01-07 Thread Thomas Renninger
On Monday, January 07, 2013 12:16:42 PM Yinghai Lu wrote: > On Mon, Jan 7, 2013 at 11:09 AM, Thomas Renninger wrote: > > e820: BIOS-provided physical RAM map: > > BIOS-e820: [mem 0x0100-0x0009bfff] usable > > BIOS-e820: [mem 0x0010-0xbd2e] usable > > BIO

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2013-01-07 Thread Yinghai Lu
On Mon, Jan 7, 2013 at 11:09 AM, Thomas Renninger wrote: > e820: BIOS-provided physical RAM map: > BIOS-e820: [mem 0x0100-0x0009bfff] usable > BIOS-e820: [mem 0x0010-0xbd2e] usable > BIOS-e820: [mem 0xbd2f-0xbd31bfff] reserved > BIOS-

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2012-12-21 Thread Yinghai Lu
On Fri, Nov 30, 2012 at 7:49 AM, MUNEDA Takahiro wrote: > On Tue, 27 Nov 2012 09:42:20 +0900 (JST), > Takao Indoh wrote: > >> These patches reset PCIe devices at boot time to address DMA problem on >> kdump with iommu. When "reset_devices" is specified, a hot reset is >> triggered on each PCIe ro

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2012-12-21 Thread Takao Indoh
Hi, (2012/12/21 18:59), oliver yang wrote: Hi Takao, Because I want to config the kdump in our lab, I have some questions about the backgroud of your patch. 1. Will you patch only work while IOMMU is enabled? No. It always works when "reset_devices" is specified as boot parameter. 2. Lo

Re: [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2012-11-30 Thread MUNEDA Takahiro
On Tue, 27 Nov 2012 09:42:20 +0900 (JST), Takao Indoh wrote: > These patches reset PCIe devices at boot time to address DMA problem on > kdump with iommu. When "reset_devices" is specified, a hot reset is > triggered on each PCIe root port and downstream port to reset its > downstream endpoint. >

[PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu

2012-11-26 Thread Takao Indoh
These patches reset PCIe devices at boot time to address DMA problem on kdump with iommu. When "reset_devices" is specified, a hot reset is triggered on each PCIe root port and downstream port to reset its downstream endpoint. Background: A kdump problem about DMA has been discussed for a long tim