From: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
To: linux-ia64@vger.kernel.org
Subject: [Linux-ia64] PATCH: Fix for 4KB kernel corruption
Date: Fri, 16 Nov 2001 02:05:47 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590698805523@msgid-missing> (raw)
Hi,
4KB page size kernel is broken on Lion with 8GB memory. ia64_boot_param
structure was getting corrupted. Appended patch fixes this problem.
PAGE_ALIGN is required because: rsvd_region[i].end need not be page aligned
and in the next iteration of the for loop this can potentially become
bootmap_start. This can lead to corruption of rsvd_region[i] as
init_bootmem() takes the pfn of bootmap_start and initialises the bootmem.
Thanks,
Suresh
diff -u linux-2.4.14/arch/ia64/kernel/setup.c~
linux-2.4.14/arch/ia64/kernel/setup.c
--- linux-2.4.14/arch/ia64/kernel/setup.c~ Thu Nov 15 16:27:23 2001
+++ linux-2.4.14/arch/ia64/kernel/setup.c Thu Nov 15 16:28:01 2001
@@ -175,7 +175,7 @@
/* nothing more available in this segment */
if (range_end = end) return 0;
- free_start = rsvd_region[i].end;
+ free_start = PAGE_ALIGN(rsvd_region[i].end);
}
return 0;
}
next reply other threads:[~2001-11-16 2:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-16 2:05 Siddha, Suresh B [this message]
2001-11-16 2:05 ` [Linux-ia64] PATCH: Fix for 4KB kernel corruption Siddha, Suresh B
2001-11-16 10:24 ` Philippe Gramoullé
2001-11-16 18:44 ` Siddha, Suresh B
2001-11-19 21:40 ` David Mosberger
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=marc-linux-ia64-105590698805523@msgid-missing \
--to=suresh.b.siddha@intel.com \
--cc=linux-ia64@vger.kernel.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.