Re: [RFC PATCH powerpc] try secondary hash before BUG in kernel_map_linear_page()

2013-04-09 Thread Li Zhong
On Wed, 2013-04-10 at 12:21 +1000, Michael Ellerman wrote: > On Mon, Feb 25, 2013 at 05:29:35PM +0800, Li Zhong wrote: > > This patch tries to fix following issue when CONFIG_DEBUG_PAGEALLOC > > is enabled: > > > > [ 543.075675] [ cut here ] > > [ 543.075701] kernel BUG a

Re: [RFC PATCH powerpc] try secondary hash before BUG in kernel_map_linear_page()

2013-04-09 Thread Michael Ellerman
On Mon, Feb 25, 2013 at 05:29:35PM +0800, Li Zhong wrote: > 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: Exceptio

[RFC PATCH powerpc] try secondary hash before BUG in kernel_map_linear_page()

2013-02-25 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