Kexec Archive on lore.kernel.org
 help / color / mirror / Atom feed
From: WANG Chao <chaowang@redhat.com>
To: horms@verge.net.au, dyoung@redhat.com, linn@hp.com,
	vgoyal@redhat.com, hpa@zytor.com, trenn@suse.de
Cc: kexec@lists.infradead.org
Subject: [PATCH v7 5/9] x86, cleanup: increase CRASH_MAX_MEMMAP_NR up to 1024
Date: Tue, 22 Apr 2014 10:56:43 +0800	[thread overview]
Message-ID: <1398135407-30142-6-git-send-email-chaowang@redhat.com> (raw)
In-Reply-To: <1398135407-30142-1-git-send-email-chaowang@redhat.com>

CRASH_MAX_MEMMAP_NR is used as the upper boundary of memmap_p.
Originally memmap_p was used to store RANGE_RAM only. But now we changed
it to store all the types of memory ranges for 2nd kernel, which
includes RANGE_RAM, RANGE_ACPI, RANGE_ACPI_NVS (and RANGE_RESERVED in
the future).

Currently CRASH_MAX_MEMMAP_NR is defined (KEXEC_MAX_SEGMENTS + 2), which
is not enough for memmap_p. It must be increased to a much higher value.

I think 1024 is good enough for storing all memory ranges for 2nd
kernel. So this patch increases CRASH_MAX_MEMMAP_NR to 1024.

Signed-off-by: WANG Chao <chaowang@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Tested-by: Linn Crosetto <linn@hp.com>
---
 kexec/arch/i386/crashdump-x86.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kexec/arch/i386/crashdump-x86.h b/kexec/arch/i386/crashdump-x86.h
index b61cf0a..ddee19f 100644
--- a/kexec/arch/i386/crashdump-x86.h
+++ b/kexec/arch/i386/crashdump-x86.h
@@ -20,7 +20,7 @@ int load_crashdump_segments(struct kexec_info *info, char *mod_cmdline,
 /* Kernel text size */
 #define X86_64_KERNEL_TEXT_SIZE  (512UL*1024*1024)
 
-#define CRASH_MAX_MEMMAP_NR	(KEXEC_MAX_SEGMENTS + 1)
+#define CRASH_MAX_MEMMAP_NR	1024
 #define CRASH_MAX_MEMORY_RANGES	(MAX_MEMORY_RANGES + 2)
 
 /* Backup Region, First 640K of System RAM. */
-- 
1.9.0


_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

  parent reply	other threads:[~2014-04-22  2:57 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-22  2:56 [PATCH v7 0/9] kexec-tools, x86: E820 memmap pass for kdump WANG Chao
2014-04-22  2:56 ` [PATCH v7 1/9] x86, cleanup: add extra arguments to add_memmap() and delete_memmap() WANG Chao
2014-04-22  2:56 ` [PATCH v7 2/9] x86, cleanup: add_memmap() only do alignment check on RANGE_RAM WANG Chao
2014-04-22  2:56 ` [PATCH v7 3/9] x86, cleanup: add other types of memory range for 2nd kernel boot to memmap_p WANG Chao
2014-04-22  2:56 ` [PATCH v7 4/9] x86, cleanup: use dbgprint_mem_range for memory range debugging WANG Chao
2014-04-22  2:56 ` WANG Chao [this message]
2014-04-22  2:56 ` [PATCH v7 6/9] x86, cleanup: Store crash memory ranges kexec_info WANG Chao
2014-04-22  2:56 ` [PATCH v7 7/9] x86, cleanup: kexec memory range .end to be inclusive WANG Chao
2014-04-22  2:56 ` [PATCH v7 8/9] x86: add --pass-memmap-cmdline option WANG Chao
2014-04-22  2:56 ` [PATCH v7 9/9] x86: Pass memory range via E820 for kdump WANG Chao
2014-04-22  4:37 ` [PATCH v7 0/9] kexec-tools, x86: E820 memmap pass " WANG Chao
2014-04-23  0:14   ` Simon Horman
2014-04-23  3:31     ` WANG Chao
2014-05-07 14:45 ` Vivek Goyal
2014-05-08 11:31   ` WANG Chao

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1398135407-30142-6-git-send-email-chaowang@redhat.com \
    --to=chaowang@redhat.com \
    --cc=dyoung@redhat.com \
    --cc=horms@verge.net.au \
    --cc=hpa@zytor.com \
    --cc=kexec@lists.infradead.org \
    --cc=linn@hp.com \
    --cc=trenn@suse.de \
    --cc=vgoyal@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox