The kernel test automation seems to confirm my findings:
Is this really a bug?
On 22/02/18 16:13, Igor Stoppa wrote:
> While trying to change the code of find_vm_area, I got an automated
> notification that my code was breaking the testing of i386, based on the
> 0-day testing automation from 01.org
> I started investigating the issue and noticed that it seems to be
> reproducible also on top of plain 4.16-rc2, without any of my patches.
> I'm still not 100% sure that I'm doing something sane, but I thought it
> might be good to share the finding.
> The patch contains both a minimal change, to trigger the crash, and a
> snippet of the log of the crash i get.
> Igor Stoppa (1):
> crash vmalloc_to_page()
> mm/vmalloc.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)