On 27.12.2018 10:13, Christian Borntraeger wrote:
Right now you get a message
"BUG: non-zero pgtables_bytes on freeing mm: -16384"
for EVERY process that exits in 4.19.5 and later.
bisect points to
Author: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Date: Mon Oct 15 11:09:16 2018 +0200
s390/mm: fix mis-accounting of pgtable_bytes
[ Upstream commit e12e4044aede97974f2222eb7f0ed726a5179a32 ]
Turns out that this patch requires several dependencies so the autoselection of this
patch was missing that.
Can we either revert this patch or add the dependencies?
It seems that adding
commit 6d212db11947ae5464e4717536ed9faf61c01e86 ("mm: add mm_pxd_folded checks to pgtable_bytes accounting functions")
fixes the issue.