From: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
To: linux-mm@kvack.org, Mel Gorman <mgorman@techsingularity.net>,
Vlastimil Babka <vbabka@suse.cz>,
Michal Hocko <mhocko@kernel.org>,
Andrew Morton <akpm@linux--foundation.org>,
Michael Ellerman <mpe@ellerman.id.au>,
linuxppc-dev@lists.ozlabs.org
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Subject: [PATCH 2/2] fadump: Disable deferred page struct initialisation
Date: Tue, 2 Aug 2016 18:49:07 +0530 [thread overview]
Message-ID: <1470143947-24443-3-git-send-email-srikar@linux.vnet.ibm.com> (raw)
In-Reply-To: <1470143947-24443-1-git-send-email-srikar@linux.vnet.ibm.com>
Fadump kernel reserves significant number of memory blocks. On a multi-node
machine, with CONFIG_DEFFERRED_STRUCT_PAGE support, fadump kernel fails to
boot. Fix this by disabling deferred page struct initialisation.
Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
---
arch/powerpc/kernel/fadump.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index 3cb3b02a..117faf2 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -318,6 +318,7 @@ int __init fadump_reserve_mem(void)
be64_to_cpu(fdm_active->rmr_region.source_len);
pr_debug("fadumphdr_addr = %p\n",
(void *) fw_dump.fadumphdr_addr);
+ disable_deferred_meminit();
} else {
/* Reserve the memory at the top of memory. */
size = get_fadump_area_size();
--
1.8.5.6
--
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next prev parent reply other threads:[~2016-08-02 13:19 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-02 13:19 [PATCH 0/0] Disable deferred struct page initialisation on Fadump Srikar Dronamraju
2016-08-02 13:19 ` [PATCH 1/2] mm: Allow disabling deferred struct page initialisation Srikar Dronamraju
2016-08-02 18:09 ` Dave Hansen
2016-08-03 6:38 ` Srikar Dronamraju
2016-08-03 18:17 ` Dave Hansen
2016-08-04 5:25 ` Srikar Dronamraju
2016-08-02 13:19 ` Srikar Dronamraju [this message]
2016-08-03 5:20 ` [PATCH 2/2] fadump: Disable deferred page struct initialisation Balbir Singh
2016-08-03 6:07 ` Vlastimil Babka
2016-08-03 11:34 ` Michael Ellerman
2016-08-03 6:35 ` Srikar Dronamraju
2016-08-03 19:40 ` Dave Hansen
2016-08-04 5:10 ` Srikar Dronamraju
2016-08-04 10:28 ` Mel Gorman
2016-08-04 13:54 ` Srikar Dronamraju
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