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| author | Guenter Roeck <[email protected]> | 2018-03-01 22:40:52 +0000 |
|---|---|---|
| committer | Martin Schwidefsky <[email protected]> | 2018-03-02 11:48:40 +0000 |
| commit | 61e18270f604c744ed9f8f1b740022516f9726f8 (patch) | |
| tree | d9bb7e2c84e8bb877a51d015ddbd606b2652f9af /lib/netdev-notifier-error-inject.c | |
| parent | s390: do not bypass BPENTER for interrupt system calls (diff) | |
| download | kernel-61e18270f604c744ed9f8f1b740022516f9726f8.tar.gz kernel-61e18270f604c744ed9f8f1b740022516f9726f8.zip | |
s390: Fix runtime warning about negative pgtables_bytes
When running s390 images with 'compat' processes, the following
BUG is seen repeatedly.
BUG: non-zero pgtables_bytes on freeing mm: -16384
Bisect points to commit b4e98d9ac775 ("mm: account pud page tables").
Analysis shows that init_new_context() is called with
mm->context.asce_limit set to _REGION3_SIZE. In this situation,
pgtables_bytes remains set to 0 and is not increased. The message is
displayed when the affected process dies and mm_dec_nr_puds() is called.
Cc: Kirill A. Shutemov <[email protected]>
Cc: Heiko Carstens <[email protected]>
Fixes: b4e98d9ac775 ("mm: account pud page tables")
Signed-off-by: Guenter Roeck <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
Diffstat (limited to 'lib/netdev-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions