File 0033-x86-Support-large-number-of-memory-ranges.... of Package kexec-tools

Overview Repositories Revisions Requests Users Attributes Meta

File 0033-x86-Support-large-number-of-memory-ranges.patch of Package kexec-tools (Revision 995f3400ff22b965c46d34cbf25ceed5)

Currently displaying revision 995f3400ff22b965c46d34cbf25ceed5 , Show latest

From 4a6d67d9e938a7accf128aff23f8ad4bda67f729 Mon Sep 17 00:00:00 2001
From: Xunlei Pang <xlpang@redhat.com>
Date: Thu, 23 Mar 2017 19:16:59 +0800
Subject: [PATCH 33/45] x86: Support large number of memory ranges

We got a problem on one SGI 64TB machine, the current kexec-tools
failed to work due to the insufficient ranges(MAX_MEMORY_RANGES)
allowed which is defined as 1024(less than the ranges on the machine).
The kcore header is insufficient due to the same reason as well.

To solve this, this patch simply doubles "MAX_MEMORY_RANGES" and
"KCORE_ELF_HEADERS_SIZE".

Signed-off-by: Xunlei Pang <xlpang@redhat.com>
Tested-by: Frank Ramsay <frank.ramsay@hpe.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
 kexec/arch/i386/kexec-x86.h | 2 +-
 kexec/crashdump.h           | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kexec/arch/i386/kexec-x86.h b/kexec/arch/i386/kexec-x86.h
index 33df3524f4e2..51855f8db762 100644
--- a/kexec/arch/i386/kexec-x86.h
+++ b/kexec/arch/i386/kexec-x86.h
@@ -1,7 +1,7 @@
 #ifndef KEXEC_X86_H
 #define KEXEC_X86_H
 
-#define MAX_MEMORY_RANGES 1024
+#define MAX_MEMORY_RANGES 2048
 
 enum coretype {
 	CORE_TYPE_UNDEF = 0,
diff --git a/kexec/crashdump.h b/kexec/crashdump.h
index 86e1ef2523ca..18bd691c33e2 100644
--- a/kexec/crashdump.h
+++ b/kexec/crashdump.h
@@ -7,8 +7,8 @@ extern int get_xen_vmcoreinfo(uint64_t *addr, uint64_t *len);
 
 /* Need to find a better way to determine per cpu notes section size. */
 #define MAX_NOTE_BYTES		1024
-/* Expecting ELF headers to fit in 32K. Increase it if you need more. */
-#define KCORE_ELF_HEADERS_SIZE  32768
+/* Expecting ELF headers to fit in 64K. Increase it if you need more. */
+#define KCORE_ELF_HEADERS_SIZE  65536
 /* The address of the ELF header is passed to the secondary kernel
  * using the kernel command line option memmap=nnn.
  * The smallest unit the kernel accepts is in kilobytes,
-- 
2.13.0

Places

File 0033-x86-Support-large-number-of-memory-ranges.patch of Package kexec-tools (Revision 995f3400ff22b965c46d34cbf25ceed5)

Places