Re: [PATCH 0/4] nvme-pci: support device coredump

2019-05-04 Thread Akinobu Mita
2019年5月4日(土) 18:40 Minwoo Im : > > Hi Akinobu, > > On 5/4/19 1:20 PM, Akinobu Mita wrote: > > 2019年5月3日(金) 21:20 Christoph Hellwig : > >> > >> On Fri, May 03, 2019 at 06:12:32AM -0600, Keith Busch wrote: > >>> Could you actually explain how the rest is useful? I personally have > >>> never

Re: [PATCH 0/4] nvme-pci: support device coredump

2019-05-04 Thread Minwoo Im
Hi Akinobu, On 5/4/19 1:20 PM, Akinobu Mita wrote: 2019年5月3日(金) 21:20 Christoph Hellwig : On Fri, May 03, 2019 at 06:12:32AM -0600, Keith Busch wrote: Could you actually explain how the rest is useful? I personally have never encountered an issue where knowing these values would have helped:

Re: [PATCH 0/4] nvme-pci: support device coredump

2019-05-03 Thread Akinobu Mita
2019年5月3日(金) 21:20 Christoph Hellwig : > > On Fri, May 03, 2019 at 06:12:32AM -0600, Keith Busch wrote: > > Could you actually explain how the rest is useful? I personally have > > never encountered an issue where knowing these values would have helped: > > every device timeout always needed

Re: [PATCH 0/4] nvme-pci: support device coredump

2019-05-03 Thread Christoph Hellwig
On Fri, May 03, 2019 at 06:12:32AM -0600, Keith Busch wrote: > Could you actually explain how the rest is useful? I personally have > never encountered an issue where knowing these values would have helped: > every device timeout always needed device specific internal firmware > logs in my

Re: [PATCH 0/4] nvme-pci: support device coredump

2019-05-03 Thread Keith Busch
On Fri, May 03, 2019 at 12:38:08PM +0900, Akinobu Mita wrote: > 2019年5月2日(木) 22:03 Keith Busch : > > On Thu, May 02, 2019 at 05:59:17PM +0900, Akinobu Mita wrote: > > > This enables to capture snapshot of controller information via device > > > coredump machanism, and it helps diagnose and debug

Re: [PATCH 0/4] nvme-pci: support device coredump

2019-05-02 Thread Akinobu Mita
2019年5月2日(木) 22:03 Keith Busch : > > On Thu, May 02, 2019 at 05:59:17PM +0900, Akinobu Mita wrote: > > This enables to capture snapshot of controller information via device > > coredump machanism, and it helps diagnose and debug issues. > > > > The nvme device coredump is triggered before

Re: [PATCH 0/4] nvme-pci: support device coredump

2019-05-02 Thread Keith Busch
On Thu, May 02, 2019 at 05:59:17PM +0900, Akinobu Mita wrote: > This enables to capture snapshot of controller information via device > coredump machanism, and it helps diagnose and debug issues. > > The nvme device coredump is triggered before resetting the controller > caused by I/O timeout,

[PATCH 0/4] nvme-pci: support device coredump

2019-05-02 Thread Akinobu Mita
This enables to capture snapshot of controller information via device coredump machanism, and it helps diagnose and debug issues. The nvme device coredump is triggered before resetting the controller caused by I/O timeout, and creates the following coredump files. - regs: NVMe controller