From: Timur Tabi <timur@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, torvalds@linux-foundation.org,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Petr Mladek <pmladek@suse.com>,
roman.fietze@magna.com, keescook@chromium.org,
Steven Rostedt <rostedt@goodmis.org>,
John Ogness <john.ogness@linutronix.de>,
linux-mm@kvack.org, Akinobu Mita <akinobu.mita@gmail.com>
Subject: [PATCH 2/2] mm/page_poison: use unhashed address in hexdump for check_poison_mem()
Date: Sat, 16 Jan 2021 16:09:50 -0600 [thread overview]
Message-ID: <20210116220950.47078-3-timur@kernel.org> (raw)
In-Reply-To: <20210116220950.47078-1-timur@kernel.org>
Now that print_hex_dump() is capable of printing unhashed addresses,
use that feature in the code that reports memory errors. Hashed
addresses don't tell you where the corrupted page actually is.
Signed-off-by: Timur Tabi <timur@kernel.org>
---
mm/page_poison.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_poison.c b/mm/page_poison.c
index 65cdf844c8ad..4902f3261ee4 100644
--- a/mm/page_poison.c
+++ b/mm/page_poison.c
@@ -67,7 +67,7 @@ static void check_poison_mem(unsigned char *mem, size_t bytes)
else
pr_err("pagealloc: memory corruption\n");
- print_hex_dump(KERN_ERR, "", DUMP_PREFIX_ADDRESS, 16, 1, start,
+ print_hex_dump(KERN_ERR, "", DUMP_PREFIX_UNHASHED, 16, 1, start,
end - start + 1, 1);
dump_stack();
}
--
2.25.1
next prev parent reply other threads:[~2021-01-16 22:12 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-16 22:09 [PATCH 0/2] introduce DUMP_PREFIX_UNHASHED for hex dumps Timur Tabi
2021-01-16 22:09 ` [PATCH 1/2] [v2] lib/hexdump: introduce DUMP_PREFIX_UNHASHED for unhashed addresses Timur Tabi
2021-01-18 10:03 ` Andy Shevchenko
2021-01-18 15:57 ` Timur Tabi
2021-01-18 17:14 ` Andy Shevchenko
2021-01-18 17:53 ` Timur Tabi
2021-01-16 22:09 ` Timur Tabi [this message]
2021-01-18 18:26 ` [PATCH 0/2] introduce DUMP_PREFIX_UNHASHED for hex dumps Matthew Wilcox
2021-01-18 19:03 ` Timur Tabi
2021-01-19 0:53 ` Sergey Senozhatsky
2021-01-19 1:47 ` Matthew Wilcox
2021-01-19 10:38 ` Sergey Senozhatsky
2021-01-19 19:45 ` Kees Cook
2021-01-26 16:47 ` Vlastimil Babka
2021-01-26 16:59 ` Timur Tabi
2021-01-26 17:14 ` Steven Rostedt
2021-01-26 17:14 ` Vlastimil Babka
2021-01-26 17:30 ` Timur Tabi
2021-01-26 17:39 ` Steven Rostedt
2021-01-26 17:40 ` Steven Rostedt
2021-01-26 19:23 ` John Ogness
2021-01-27 2:11 ` Sergey Senozhatsky
2021-01-27 3:22 ` Timur Tabi
2021-01-27 10:11 ` Petr Mladek
2021-01-27 10:38 ` Vlastimil Babka
2021-01-19 19:45 ` Kees Cook
2021-01-19 19:55 ` Timur Tabi
2021-01-19 20:10 ` Steven Rostedt
2021-01-19 20:49 ` Timur Tabi
2021-01-19 21:15 ` Steven Rostedt
2021-01-19 21:25 ` Timur Tabi
2021-01-20 9:19 ` Petr Mladek
2021-01-20 12:17 ` Matthew Wilcox
2021-01-20 19:39 ` Linus Torvalds
2021-01-19 20:18 ` Randy Dunlap
2021-01-20 20:28 ` Kees Cook
2021-01-19 2:30 ` Timur Tabi
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=20210116220950.47078-3-timur@kernel.org \
--to=timur@kernel.org \
--cc=akinobu.mita@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=john.ogness@linutronix.de \
--cc=keescook@chromium.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=pmladek@suse.com \
--cc=roman.fietze@magna.com \
--cc=rostedt@goodmis.org \
--cc=sergey.senozhatsky@gmail.com \
--cc=torvalds@linux-foundation.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).