GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-03-16 04:04:06 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

efi: disable mirror feature during crashkernel

Browse source 
commit 7ea6ec4c25294e8bc8788148ef854df92ee8dc5e upstream.

If the system has no mirrored memory or uses crashkernel.high while
kernelcore=mirror is enabled on the command line then during crashkernel,
there will be limited mirrored memory and this usually leads to OOM.

To solve this problem, disable the mirror feature during crashkernel.

Link: https://lkml.kernel.org/r/20240109041536.3903042-1-mawupeng1@huawei.com
Signed-off-by: Ma Wupeng <mawupeng1@huawei.com>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ma Wupeng 2024-01-09 12:15:36 +08:00 • committed by Greg Kroah-Hartman
parent ce51369287
commit 6c4c57669d
1 changed files with 6 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
mm/mm_init.c
View file

@ -26,6 +26,7 @@
#include <linux/pgtable.h>
#include <linux/swap.h>
#include <linux/cma.h>
#include <linux/crash_dump.h>
#include "internal.h"
#include "slab.h"
#include "shuffle.h"
@ -381,6 +382,11 @@ static void __init find_zone_movable_pfns_for_nodes(void)
goto out;
}
if (is_kdump_kernel()) {
pr_warn("The system is under kdump, ignore kernelcore=mirror.\n");
goto out;
}
for_each_mem_region(r) {
if (memblock_is_mirror(r))
continue;