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From: Mitsuhiro Tanino <mitsuhiro.tanino.gm@hitachi.com>
To: Vivek Goyal <vgoyal@redhat.com>,
	kexec@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Subject: [PATCH 2/2 v2] kexec: Export PG_hwpoison flag into vmcoreinfo
Date: Wed, 31 Oct 2012 23:05:05 +0900	[thread overview]
Message-ID: <50913011.2030900@hitachi.com> (raw)
In-Reply-To: <20121030143750.GF2290@redhat.com>

This patch exports a PG_hwpoison into vmcoreinfo when
CONFIG_MEMORY_FAILURE is defined.
"makedumpfile" needs to read information of memory, such as
'mem_section', 'zone', 'pageflags' from vmcore.

We introduce a function into "makedumpfile" to exclude
hwpoison page from vmcore dump.
In order to introduce this function, PG_hwpoison flag have
to export into vmcoreinfo.

Signed-off-by: Mitsuhiro Tanino <mitsuhiro.tanino.gm@hitachi.com>
---
 kernel/kexec.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/kexec.c b/kernel/kexec.c
index 0668d58..0d5d6bc 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1513,6 +1513,9 @@ static int __init crash_save_vmcoreinfo_init(void)
        VMCOREINFO_NUMBER(PG_lru);
        VMCOREINFO_NUMBER(PG_private);
        VMCOREINFO_NUMBER(PG_swapcache);
+#ifdef CONFIG_MEMORY_FAILURE
+       VMCOREINFO_NUMBER(PG_hwpoison);
+#endif

        arch_crash_save_vmcoreinfo();
        update_vmcoreinfo_note();
--
1.7.10.1

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WARNING: multiple messages have this Message-ID (diff)
From: Mitsuhiro Tanino <mitsuhiro.tanino.gm@hitachi.com>
To: Vivek Goyal <vgoyal@redhat.com>,
	kexec@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Subject: [PATCH 2/2 v2] kexec: Export PG_hwpoison flag into vmcoreinfo
Date: Wed, 31 Oct 2012 23:05:05 +0900	[thread overview]
Message-ID: <50913011.2030900@hitachi.com> (raw)
In-Reply-To: <20121030143750.GF2290@redhat.com>

This patch exports a PG_hwpoison into vmcoreinfo when
CONFIG_MEMORY_FAILURE is defined.
"makedumpfile" needs to read information of memory, such as
'mem_section', 'zone', 'pageflags' from vmcore.

We introduce a function into "makedumpfile" to exclude
hwpoison page from vmcore dump.
In order to introduce this function, PG_hwpoison flag have
to export into vmcoreinfo.

Signed-off-by: Mitsuhiro Tanino <mitsuhiro.tanino.gm@hitachi.com>
---
 kernel/kexec.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/kexec.c b/kernel/kexec.c
index 0668d58..0d5d6bc 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1513,6 +1513,9 @@ static int __init crash_save_vmcoreinfo_init(void)
        VMCOREINFO_NUMBER(PG_lru);
        VMCOREINFO_NUMBER(PG_private);
        VMCOREINFO_NUMBER(PG_swapcache);
+#ifdef CONFIG_MEMORY_FAILURE
+       VMCOREINFO_NUMBER(PG_hwpoison);
+#endif

        arch_crash_save_vmcoreinfo();
        update_vmcoreinfo_note();
--
1.7.10.1

  parent reply	other threads:[~2012-10-31 14:05 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-30 14:06 [Patch 0/2] Exclude hwpoison page from vmcore dump Mitsuhiro Tanino
2012-10-30 14:06 ` Mitsuhiro Tanino
2012-10-30 14:37 ` Vivek Goyal
2012-10-30 14:37   ` Vivek Goyal
2012-10-31 13:51   ` Mitsuhiro Tanino
2012-10-31 13:51     ` Mitsuhiro Tanino
2012-10-31 14:14     ` Vivek Goyal
2012-10-31 14:14       ` Vivek Goyal
2012-11-01 10:32       ` Mitsuhiro Tanino
2012-11-01 10:32         ` Mitsuhiro Tanino
2012-11-01 10:40         ` Eric W. Biederman
2012-11-01 10:40           ` Eric W. Biederman
2012-10-31 14:04   ` [PATCH 0/2 v2] " Mitsuhiro Tanino
2012-10-31 14:04     ` Mitsuhiro Tanino
2012-10-31 14:05   ` [PATCH 1/2 v2] makedumpfile: Add a default action to exclude hwpoison page from vmcore Mitsuhiro Tanino
2012-10-31 14:05     ` Mitsuhiro Tanino
2012-11-05  6:04     ` Atsushi Kumagai
2012-11-05  6:04       ` Atsushi Kumagai
2012-10-31 14:05   ` Mitsuhiro Tanino [this message]
2012-10-31 14:05     ` [PATCH 2/2 v2] kexec: Export PG_hwpoison flag into vmcoreinfo Mitsuhiro Tanino
2013-02-08  8:49     ` Atsushi Kumagai
2013-02-08  8:49       ` Atsushi Kumagai
2013-02-12  3:07       ` Mitsuhiro Tanino
2013-02-12  3:07         ` Mitsuhiro Tanino
2013-02-12 10:58         ` Eric W. Biederman
2013-02-12 10:58           ` Eric W. Biederman
2013-02-12 13:29           ` Mitsuhiro Tanino
2013-02-12 13:29             ` Mitsuhiro Tanino
2013-02-15  8:48       ` Mitsuhiro Tanino
2013-02-15  8:48         ` Mitsuhiro Tanino
2013-02-15  9:35         ` Atsushi Kumagai
2013-02-15  9:35           ` Atsushi Kumagai

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