On Thu, 11 Oct 2018 18:04:12 +0800 Li Wang <liwang@xxxxxxxxxx> wrote: > When running s390 system with LTP/cve-2017-17052.c[1], the following BUG is > came out repeatedly. > I remember this warning start from kernel-4.16.0 and now it still exist in > kernel-4.19-rc7. > Can anyone take a look? > > [ 2678.991496] BUG: non-zero pgtables_bytes on freeing mm: 16384 > [ 2679.001543] BUG: non-zero pgtables_bytes on freeing mm: 16384 > [ 2679.002453] BUG: non-zero pgtables_bytes on freeing mm: 16384 > [ 2679.003256] BUG: non-zero pgtables_bytes on freeing mm: 16384 > [ 2679.013689] BUG: non-zero pgtables_bytes on freeing mm: 16384 > [ 2679.024647] BUG: non-zero pgtables_bytes on freeing mm: 16384 > [ 2679.064408] BUG: non-zero pgtables_bytes on freeing mm: 16384 > [ 2679.133963] BUG: non-zero pgtables_bytes on freeing mm: 16384 > > [1]: > https://github.com/linux-test-project/ltp/blob/master/testcases/cve/cve-2017-17052.c Confirmed, I see this bug with cvs-2017-17052 on my LPAR as well. I'll look into it. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.
