Re: [PATCH 2/3] HWPOISON: undo memory error handling for dirty pagecache

2012-08-13 Thread Jun'ichi Nomura
On 08/11/12 08:09, Andi Kleen wrote: > Naoya Horiguchi writes: > >> Current memory error handling on dirty pagecache has a bug that user >> processes who use corrupted pages via read() or write() can't be aware >> of the memory error and result in discarding dirty data silently. >> >> The

Re: [PATCH 2/3] HWPOISON: undo memory error handling for dirty pagecache

2012-08-13 Thread Jun'ichi Nomura
On 08/11/12 08:09, Andi Kleen wrote: Naoya Horiguchi n-horigu...@ah.jp.nec.com writes: Current memory error handling on dirty pagecache has a bug that user processes who use corrupted pages via read() or write() can't be aware of the memory error and result in discarding dirty data silently.

Re: [PATCH 2/3] HWPOISON: undo memory error handling for dirty pagecache

2012-08-10 Thread Naoya Horiguchi
Hi Andi, On Fri, Aug 10, 2012 at 04:09:48PM -0700, Andi Kleen wrote: > Naoya Horiguchi writes: > > > Current memory error handling on dirty pagecache has a bug that user > > processes who use corrupted pages via read() or write() can't be aware > > of the memory error and result in discarding

Re: [PATCH 2/3] HWPOISON: undo memory error handling for dirty pagecache

2012-08-10 Thread Andi Kleen
Naoya Horiguchi writes: > Current memory error handling on dirty pagecache has a bug that user > processes who use corrupted pages via read() or write() can't be aware > of the memory error and result in discarding dirty data silently. > > The following patch is to improve handling/reporting

[PATCH 2/3] HWPOISON: undo memory error handling for dirty pagecache

2012-08-10 Thread Naoya Horiguchi
Current memory error handling on dirty pagecache has a bug that user processes who use corrupted pages via read() or write() can't be aware of the memory error and result in discarding dirty data silently. The following patch is to improve handling/reporting memory errors on this case, but as a

[PATCH 2/3] HWPOISON: undo memory error handling for dirty pagecache

2012-08-10 Thread Naoya Horiguchi
Current memory error handling on dirty pagecache has a bug that user processes who use corrupted pages via read() or write() can't be aware of the memory error and result in discarding dirty data silently. The following patch is to improve handling/reporting memory errors on this case, but as a

Re: [PATCH 2/3] HWPOISON: undo memory error handling for dirty pagecache

2012-08-10 Thread Andi Kleen
Naoya Horiguchi n-horigu...@ah.jp.nec.com writes: Current memory error handling on dirty pagecache has a bug that user processes who use corrupted pages via read() or write() can't be aware of the memory error and result in discarding dirty data silently. The following patch is to improve

Re: [PATCH 2/3] HWPOISON: undo memory error handling for dirty pagecache

2012-08-10 Thread Naoya Horiguchi
Hi Andi, On Fri, Aug 10, 2012 at 04:09:48PM -0700, Andi Kleen wrote: Naoya Horiguchi n-horigu...@ah.jp.nec.com writes: Current memory error handling on dirty pagecache has a bug that user processes who use corrupted pages via read() or write() can't be aware of the memory error and