Re: [PATCH V2] mm: check pfn_valid first in zero_resv_unavail

2017-12-07 Thread Dave Young
On 12/05/17 at 10:46am, Michal Hocko wrote: > On Fri 01-12-17 17:50:48, Dave Young wrote: > > With latest kernel I get below bug while testing kdump: > > [0.00] BUG: unable to handle kernel paging request at > > ea00034b1040 > > [0.00] IP: zero_resv_unavail+0xbd/0x126 > > [

Re: [PATCH V2] mm: check pfn_valid first in zero_resv_unavail

2017-12-05 Thread Michal Hocko
On Fri 01-12-17 17:50:48, Dave Young wrote: > With latest kernel I get below bug while testing kdump: > [0.00] BUG: unable to handle kernel paging request at ea00034b1040 > [0.00] IP: zero_resv_unavail+0xbd/0x126 > [0.00] PGD 37b98067 P4D 37b98067 PUD 37b97067 PMD 0 > [

[PATCH V2] mm: check pfn_valid first in zero_resv_unavail

2017-12-01 Thread Dave Young
With latest kernel I get below bug while testing kdump: [0.00] BUG: unable to handle kernel paging request at ea00034b1040 [0.00] IP: zero_resv_unavail+0xbd/0x126 [0.00] PGD 37b98067 P4D 37b98067 PUD 37b97067 PMD 0 [0.00] Oops: 0002 [#1] SMP [0.00] Modul