Re: Page fault on vmalloc'ed memory

2010-05-06 Thread Li Yang
On Fri, May 7, 2010 at 1:38 PM, Paul Mackerras wrote: > On Thu, May 06, 2010 at 12:28:44PM +0800, Li Yang wrote: > >> The root cause of this oops might not be related with the vmalloc'ed >> area processing in Instruction Storage Interrupt.  But x86 does have >> the code for processing it while we

Re: Page fault on vmalloc'ed memory

2010-05-06 Thread Paul Mackerras
On Thu, May 06, 2010 at 12:28:44PM +0800, Li Yang wrote: > The root cause of this oops might not be related with the vmalloc'ed > area processing in Instruction Storage Interrupt. But x86 does have > the code for processing it while we don't. Is it because we have > nothing to do with the vmallo

Re: Page fault on vmalloc'ed memory

2010-05-05 Thread Li Yang
On Wed, May 5, 2010 at 7:51 PM, Timur Tabi wrote: > On Wed, May 5, 2010 at 12:19 AM, Li Yang-R58472 wrote: >> I got a weird page fault oops on vmalloc'ed area.  Digging into the powerpc >> do_page_fault(), I found there is no handling of address in kernel space >> unlike the x86 counter part.  

Re: Page fault on vmalloc'ed memory

2010-05-05 Thread Timur Tabi
On Wed, May 5, 2010 at 12:19 AM, Li Yang-R58472 wrote: > I got a weird page fault oops on vmalloc'ed area.  Digging into the powerpc > do_page_fault(), I found there is no handling of address in kernel space > unlike the x86 counter part.  Does any one know how we deal with the > vmalloc'ed are

Page fault on vmalloc'ed memory

2010-05-04 Thread Li Yang-R58472
Hi all, I got a weird page fault oops on vmalloc'ed area. Digging into the powerpc do_page_fault(), I found there is no handling of address in kernel space unlike the x86 counter part. Does any one know how we deal with the vmalloc'ed area on powerpc? Thanks a lot. - Leo ___