Messages in this thread | | | Date | Thu, 27 Dec 2018 16:01:36 -0500 | From | Sasha Levin <> | Subject | Re: 4.19.5 and later has tons of false messages "BUG: non-zero pgtables_bytes on freeing mm: -16384" |
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On Thu, Dec 27, 2018 at 10:28:56AM +0100, Christian Borntraeger wrote: > > >On 27.12.2018 10:13, Christian Borntraeger wrote: >> Martin, >> >> 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 >> commit 4136161d676a93fc8df6bdb80d720c15522d6c24 >> Author: Martin Schwidefsky <schwidefsky@de.ibm.com> >> 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? >> >> Christian >> > >It seems that adding > >commit 6d212db11947ae5464e4717536ed9faf61c01e86 ("mm: add mm_pxd_folded checks to pgtable_bytes accounting functions") >fixes the issue.
I've queued 6d212db11947 for 4.19 for now, thank you.
-- Thanks, Sasha
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