Re: [RFC PATCH v2 4/4] powerpc: Try to insert the hptes repeatedly in kernel_map_linear_page()

2013-04-15 Thread Li Zhong
On Mon, 2013-04-15 at 16:36 +1000, Michael Ellerman wrote: > On Fri, Apr 12, 2013 at 10:17:00AM +0800, Li Zhong wrote: > > This patch tries to fix following issue when CONFIG_DEBUG_PAGEALLOC > > is enabled: > > Please include a better changelog. OK, I'll use the following as a template, thank you

Re: [RFC PATCH v2 4/4] powerpc: Try to insert the hptes repeatedly in kernel_map_linear_page()

2013-04-14 Thread Michael Ellerman
On Fri, Apr 12, 2013 at 10:17:00AM +0800, Li Zhong wrote: > This patch tries to fix following issue when CONFIG_DEBUG_PAGEALLOC > is enabled: Please include a better changelog. This patch does fix (I hope?) the following oops, caused by xxx. Reproducible by doing yyy. cheers > > [ 543.075675]

[RFC PATCH v2 4/4] powerpc: Try to insert the hptes repeatedly in kernel_map_linear_page()

2013-04-11 Thread Li Zhong
This patch tries to fix following issue when CONFIG_DEBUG_PAGEALLOC is enabled: [ 543.075675] [ cut here ] [ 543.075701] kernel BUG at arch/powerpc/mm/hash_utils_64.c:1239! [ 543.075714] Oops: Exception in kernel mode, sig: 5 [#1] [ 543.075722] PREEMPT SMP NR_CPUS=16 DE