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由 Guenter Roeck 提交于
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 b4e98d9a ("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 <kirill.shutemov@linux.intel.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Fixes: b4e98d9a ("mm: account pud page tables") Signed-off-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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