e2829bbdc2
Resolves: bz1972464
Upstream: Fedora
Conflict: None
commit 646456862df8926ba10dd7330abf3bf0f887e1b6
Author: Kazuhito Hagio <k-hagio-ab@nec.com>
Date: Wed May 26 14:31:26 2021 +0900
[PATCH] Increase SECTION_MAP_LAST_BIT to 5
* Required for kernel 5.12
Kernel commit 1f90a3477df3 ("mm: teach pfn_to_online_page() about
ZONE_DEVICE section collisions") added a section flag
(SECTION_TAINT_ZONE_DEVICE) and causes makedumpfile an error on
some machines like this:
__vtop4_x86_64: Can't get a valid pmd_pte.
readmem: Can't convert a virtual address(ffffe2bdc2000000) to physical address.
readmem: type_addr: 0, addr:ffffe2bdc2000000, size:32768
__exclude_unnecessary_pages: Can't read the buffer of struct page.
create_2nd_bitmap: Can't exclude unnecessary pages.
Increase SECTION_MAP_LAST_BIT to 5 to fix this. The bit had not
been used until the change, so we can just increase the value.
Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
Signed-off-by: Tao Liu <ltao@redhat.com>
43 lines
1.6 KiB
Diff
43 lines
1.6 KiB
Diff
From 646456862df8926ba10dd7330abf3bf0f887e1b6 Mon Sep 17 00:00:00 2001
|
|
From: Kazuhito Hagio <k-hagio-ab@nec.com>
|
|
Date: Wed, 26 May 2021 14:31:26 +0900
|
|
Subject: [PATCH] Increase SECTION_MAP_LAST_BIT to 5
|
|
|
|
* Required for kernel 5.12
|
|
|
|
Kernel commit 1f90a3477df3 ("mm: teach pfn_to_online_page() about
|
|
ZONE_DEVICE section collisions") added a section flag
|
|
(SECTION_TAINT_ZONE_DEVICE) and causes makedumpfile an error on
|
|
some machines like this:
|
|
|
|
__vtop4_x86_64: Can't get a valid pmd_pte.
|
|
readmem: Can't convert a virtual address(ffffe2bdc2000000) to physical address.
|
|
readmem: type_addr: 0, addr:ffffe2bdc2000000, size:32768
|
|
__exclude_unnecessary_pages: Can't read the buffer of struct page.
|
|
create_2nd_bitmap: Can't exclude unnecessary pages.
|
|
|
|
Increase SECTION_MAP_LAST_BIT to 5 to fix this. The bit had not
|
|
been used until the change, so we can just increase the value.
|
|
|
|
Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
|
|
---
|
|
makedumpfile.h | 2 +-
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
|
diff --git a/makedumpfile-1.6.9/makedumpfile.h b/makedumpfile-1.6.9/makedumpfile.h
|
|
index 93aa774..79046f2 100644
|
|
--- a/makedumpfile-1.6.9/makedumpfile.h
|
|
+++ b/makedumpfile-1.6.9/makedumpfile.h
|
|
@@ -195,7 +195,7 @@ isAnon(unsigned long mapping)
|
|
* 2. it has been verified that (1UL<<2) was never set, so it is
|
|
* safe to mask that bit off even in old kernels.
|
|
*/
|
|
-#define SECTION_MAP_LAST_BIT (1UL<<4)
|
|
+#define SECTION_MAP_LAST_BIT (1UL<<5)
|
|
#define SECTION_MAP_MASK (~(SECTION_MAP_LAST_BIT-1))
|
|
#define NR_SECTION_ROOTS() divideup(num_section, SECTIONS_PER_ROOT())
|
|
#define SECTION_NR_TO_PFN(sec) ((sec) << PFN_SECTION_SHIFT())
|
|
--
|
|
2.29.2
|
|
|