Re: [Patch 0/2] Exclude hwpoison page from vmcore dump

2012-11-01 Thread Eric W. Biederman
Mitsuhiro Tanino writes: > Hi Vivek, > > (2012/10/31 23:14), Vivek Goyal wrote: >> If hwpoision functionality is not available in hardware, then respective >> bit will not be even set in struct page and it will be saved by default. >> So it should not matter whether hardware has hwpoision functio

Re: [Patch 0/2] Exclude hwpoison page from vmcore dump

2012-11-01 Thread Mitsuhiro Tanino
Hi Vivek, (2012/10/31 23:14), Vivek Goyal wrote: > If hwpoision functionality is not available in hardware, then respective > bit will not be even set in struct page and it will be saved by default. > So it should not matter whether hardware has hwpoision functionality > or not. Thanks, I underst

Re: [Patch 0/2] Exclude hwpoison page from vmcore dump

2012-10-31 Thread Vivek Goyal
On Wed, Oct 31, 2012 at 10:51:55PM +0900, Mitsuhiro Tanino wrote: > Hi Vivek, > > (2012/10/30 23:37), Vivek Goyal wrote: > > Why to introduce this option "-p"? Until and unless there are serious > > side effects, this should be default functionality. Isn't it? Who would > > like to touch/save pois

Re: [Patch 0/2] Exclude hwpoison page from vmcore dump

2012-10-31 Thread Mitsuhiro Tanino
Hi Vivek, (2012/10/30 23:37), Vivek Goyal wrote: > Why to introduce this option "-p"? Until and unless there are serious > side effects, this should be default functionality. Isn't it? Who would > like to touch/save poisoned pages and run into MCE? Thank you for your review of my patch. In my un

Re: [Patch 0/2] Exclude hwpoison page from vmcore dump

2012-10-30 Thread Vivek Goyal
On Tue, Oct 30, 2012 at 11:06:43PM +0900, Mitsuhiro Tanino wrote: [..] > These patches introduce a new "-p" option into "makedumpfile" to > exclude hwpoison page from vmcore. Why to introduce this option "-p"? Until and unless there are serious side effects, this should be default functionality.

[Patch 0/2] Exclude hwpoison page from vmcore dump

2012-10-30 Thread Mitsuhiro Tanino
Hi All, Please find a set of patches that introduce a new "-p" option into "makedumpfile" to exclude hwpoison page from vmcore dump. Details as described below. Problem --- Recently, according to increase large memory systems, possibility of failures which come from memory crash are also incr