Qian Cai writes:
> On Mon, Jul 20, 2020 at 03:32:59AM +, Huang, Ying wrote:
>> Thanks! Can you try the dbg patch attached? That will print more debugging
>> information when abnormal PTE pointer is detected.
>
> Here with both of your patches applied,
>
> [ 183.627876][ T3959] ra_info:
On Mon, Jul 20, 2020 at 03:32:59AM +, Huang, Ying wrote:
> Thanks! Can you try the dbg patch attached? That will print more debugging
> information when abnormal PTE pointer is detected.
Here with both of your patches applied,
[ 183.627876][ T3959] ra_info: 8, 3, 4, aabe3209
[
; Minchan Kim; Hugh Dickins; Andrew Morton
Subject: Re: linux-next: not-present page at swap_vma_readahead()
On Mon, Jul 20, 2020 at 12:37:30AM +, Huang, Ying wrote:
> Hi,
>
> Sorry for late reply. I found a problem in the swap readahead code. Can you
> help to check whethe
On Mon, Jul 20, 2020 at 12:37:30AM +, Huang, Ying wrote:
> Hi,
>
> Sorry for late reply. I found a problem in the swap readahead code. Can you
> help to check whether it can fix this?
Unfortunately, I can still reproduce it easily after applied the patch.
# git clone
; Minchan Kim; Hugh Dickins; Andrew Morton
Subject: Re: linux-next: not-present page at swap_vma_readahead()
On Wed, Apr 15, 2020 at 10:01:53AM +0800, Huang, Ying wrote:
> Qian Cai writes:
>
> >> On Apr 14, 2020, at 10:32 AM, Qian Cai wrote:
> >>
> >&
On Wed, Apr 15, 2020 at 10:01:53AM +0800, Huang, Ying wrote:
> Qian Cai writes:
>
> >> On Apr 14, 2020, at 10:32 AM, Qian Cai wrote:
> >>
> >> Fuzzers are unhappy. Thoughts?
> >
> > This is rather to reproduce. All the traces so far are from
> > copy_from_user() to trigger a page fault,
> >
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