On Mon, 2019-08-05 at 15:28 +0200, Vlastimil Babka wrote:
> On 8/2/19 8:46 AM, Prakhya, Sai Praneeth wrote:
> > > > > > +static const char * const resident_page_types[NR_MM_COUNTERS] = {
> > > > > > + "MM_FILEPAGES",
> > > > > > + "MM_ANONPAGES",
> > > > > > + "MM_SWAPENTS",
> > > > > > +
On 8/2/19 8:46 AM, Prakhya, Sai Praneeth wrote:
> +static const char * const resident_page_types[NR_MM_COUNTERS] = {
> + "MM_FILEPAGES",
> + "MM_ANONPAGES",
> + "MM_SWAPENTS",
> + "MM_SHMEMPAGES",
> +};
But please let's not put this in a header file. We're asking
> >
> > Cc: Ingo Molnar
> > Cc: Peter Zijlstra
> > Cc: Andrew Morton
> > Suggested-by/Acked-by: Dave Hansen
>
> Though I am not sure, should the above be two separate lines instead ?
Sure! Will split them in V2.
>
> > Signed-off-by: Sai Praneeth Prakhya
> > ---
> >
> > > > +static const char * const resident_page_types[NR_MM_COUNTERS] = {
> > > > + "MM_FILEPAGES",
> > > > + "MM_ANONPAGES",
> > > > + "MM_SWAPENTS",
> > > > + "MM_SHMEMPAGES",
> > > > +};
> > >
> > > But please let's not put this in a header file. We're asking the
> > >
On 07/31/2019 03:48 AM, Sai Praneeth Prakhya wrote:
> When a user process exits, the kernel cleans up the mm_struct of the user
> process and during cleanup, check_mm() checks the page tables of the user
> process for corruption (E.g: unexpected page flags set/cleared). For
> corrupted page
On Wed, 31 Jul 2019 15:36:49 -0700 Sai Praneeth Prakhya
wrote:
> > > +static const char * const resident_page_types[NR_MM_COUNTERS] = {
> > > + "MM_FILEPAGES",
> > > + "MM_ANONPAGES",
> > > + "MM_SWAPENTS",
> > > + "MM_SHMEMPAGES",
> > > +};
> >
> > But please let's not put this in a header
> > With patch:
> > ---
> > [ 69.815453] mm/pgtable-generic.c:29: bad p4d
> > 84653642(80025ca37467)
> > [ 69.815872] BUG: Bad rss-counter state mm:014a6c03
> > type:MM_FILEPAGES val:2
> > [ 69.815962] BUG: Bad rss-counter state mm:014a6c03
> >
On Tue, 30 Jul 2019 15:18:20 -0700 Sai Praneeth Prakhya
wrote:
> When a user process exits, the kernel cleans up the mm_struct of the user
> process and during cleanup, check_mm() checks the page tables of the user
> process for corruption (E.g: unexpected page flags set/cleared). For
>
When a user process exits, the kernel cleans up the mm_struct of the user
process and during cleanup, check_mm() checks the page tables of the user
process for corruption (E.g: unexpected page flags set/cleared). For
corrupted page tables, the error message printed by check_mm() isn't very
clear
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