diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-10-29 01:29:17 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-10-29 01:29:17 +0200 |
| commit | 8b2ada27dc1045e8191673bf769a1136ce8a0127 (patch) | |
| tree | df2fe577fb2f01c477e7e217cec9fd47c6ce812b /mm/debug.c | |
| parent | 2f1d407adab026b34a105ed27b1d4d7e910c4448 (diff) | |
| parent | 1adb469b9b76276d7e5ea36a20a24c47d6618a0b (diff) | |
Merge branches 'pm-cpufreq-fixes' and 'pm-sleep-fixes'
* pm-cpufreq-fixes:
cpufreq: intel_pstate: Always set max P-state in performance mode
cpufreq: intel_pstate: Set P-state upfront in performance mode
* pm-sleep-fixes:
PM / suspend: Fix missing KERN_CONT for suspend message
Diffstat (limited to 'mm/debug.c')
| -rw-r--r-- | mm/debug.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/mm/debug.c b/mm/debug.c index 8865bfb41b0b..9feb699c5d25 100644 --- a/mm/debug.c +++ b/mm/debug.c @@ -42,9 +42,16 @@ const struct trace_print_flags vmaflag_names[] = { void __dump_page(struct page *page, const char *reason) { + /* + * Avoid VM_BUG_ON() in page_mapcount(). + * page->_mapcount space in struct page is used by sl[aou]b pages to + * encode own info. + */ + int mapcount = PageSlab(page) ? 0 : page_mapcount(page); + pr_emerg("page:%p count:%d mapcount:%d mapping:%p index:%#lx", - page, page_ref_count(page), page_mapcount(page), - page->mapping, page->index); + page, page_ref_count(page), mapcount, + page->mapping, page_to_pgoff(page)); if (PageCompound(page)) pr_cont(" compound_mapcount: %d", compound_mapcount(page)); pr_cont("\n"); |