On 11/17/24 9:42 PM, John Hubbard wrote:
On 11/17/24 1:47 PM, gregkh@xxxxxxxxxxxxxxxxxxx wrote:
This is a note to let you know that I've just added the patch titled
mm/gup: avoid an unnecessary allocation call for FOLL_LONGTERM cases
to the 6.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mm-gup-avoid-an-unnecessary-allocation-call-for-foll_longterm-cases.patch
and it can be found in the queue-6.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
Hi,
During some related testing today, I experienced a kernel crash, and git
bisect points directly to the upstream commit corresponding to this
patch.
Specifically, when booting on x86 with "numa=fake=2 movablecore=4G" on
Linux 6.12, and running this, I get the crash shown below:
...
I've posted a fix-to-the-fix[1], and depending on how that fares in review,
we might end up putting both (this one here, and [1]) in stable, after all.
Let's see how it goes.
[1] https://lore.kernel.org/20241119044923.194853-1-jhubbard@xxxxxxxxxx
thanks,
--
John Hubbard
