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| author |   David Hildenbrand <david@redhat.com> | 2018-05-25 14:48:11 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2018-05-25 18:12:11 -0700 |
| commit | 3f1959721558a976aaf9c2024d5bc884e6411bf7 (patch) | |
| tree | 9a1b3752806330c513951c0c5a633ec7f7fff690 /mm | |
| parent | kasan: free allocated shadow memory on MEM_CANCEL_ONLINE (diff) | |
| download | linux-dev-3f1959721558a976aaf9c2024d5bc884e6411bf7.tar.xz linux-dev-3f1959721558a976aaf9c2024d5bc884e6411bf7.zip | |
kasan: fix memory hotplug during boot
Using module_init() is wrong. E.g. ACPI adds and onlines memory before
our memory notifier gets registered.
This makes sure that ACPI memory detected during boot up will not result
in a kernel crash.
Easily reproducible with QEMU, just specify a DIMM when starting up.
Link: http://lkml.kernel.org/r/20180522100756.18478-3-david@redhat.com
Fixes: 786a8959912e ("kasan: disable memory hotplug")
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/kasan/kasan.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c index 721e00837f00..f185455b3406 100644 --- a/mm/kasan/kasan.c +++ b/mm/kasan/kasan.c @@ -898,5 +898,5 @@ static int __init kasan_memhotplug_init(void) return 0; } -module_init(kasan_memhotplug_init); +core_initcall(kasan_memhotplug_init); #endif |