Le 28/10/2020 à 12:11, Christopher Lameter a écrit :
On Tue, 27 Oct 2020, Laurent Dufour wrote:
The issue is that object is not NULL while page is NULL which is odd but
may happen if the cache flush happened after loading object but before
loading page. Thus checking for the page pointer is
On Tue, 27 Oct 2020, Laurent Dufour wrote:
> The issue is that object is not NULL while page is NULL which is odd but
> may happen if the cache flush happened after loading object but before
> loading page. Thus checking for the page pointer is required too.
Ok then lets revert commit
While doing memory hot-unplug operation on a PowerPC VM running 1024 CPUs
with 11TB of ram, I hit the following panic:
BUG: Kernel NULL pointer dereference on read at 0x0007
Faulting instruction address: 0xc0456048
Oops: Kernel access of bad area, sig: 11 [#2]
LE PAGE_SIZE=64K
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