diff options
| author | Rafael J. Wysocki <rjw@sisk.pl> | 2007-08-15 15:37:37 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-08-22 16:23:26 -0700 |
| commit | 91f9aa522baa31a5af4909667487ba163e849c3d (patch) | |
| tree | d2e6c824b44005c934eaea1a013f41dbbb90f687 /kernel/power | |
| parent | 3443d563dc53875b15d919c4bece391f1ffd4776 (diff) | |
Hibernation: do not try to mark invalid PFNs as nosave
On some systems some PFNs reported by the early initialization code as 'nosave'
may be invalid. =A0If we try to set the corresponding bits in the hibernation
bitmap, BUG_ON() in memory_bm_find_bit() will be triggered and the system
won't be able to boot (cf. https://bugzilla.novell.com/show_bug.cgi?id=296242).
Prevent this from happening by verifying if the 'nosave' PFNs are valid in
mark_nosave_pages().
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'kernel/power')
| -rw-r--r-- | kernel/power/snapshot.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c index a3b7854b8f7..a686590d88c 100644 --- a/kernel/power/snapshot.c +++ b/kernel/power/snapshot.c @@ -709,7 +709,8 @@ static void mark_nosave_pages(struct memory_bitmap *bm) region->end_pfn << PAGE_SHIFT); for (pfn = region->start_pfn; pfn < region->end_pfn; pfn++) - memory_bm_set_bit(bm, pfn); + if (pfn_valid(pfn)) + memory_bm_set_bit(bm, pfn); } } |