[PATCH 1/2] makedumpfile: Add description of pages lost by ENOSPACE in IMPLEMENTATION

Zhou Wenjian zhouwj-fnst at cn.fujitsu.com
Thu Jun 25 01:22:55 PDT 2015


Currently, there is no obvious description in IMPLEMENTATION for
distinguishing the lost pages resulted by ENOSPACE errors or others.
So, it is added.

Signed-off-by: Zhou Wenjian <zhouwj-fnst at cn.fujitsu.com>
---
 IMPLEMENTATION |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/IMPLEMENTATION b/IMPLEMENTATION
index 72df5d5..70a3f7c 100644
--- a/IMPLEMENTATION
+++ b/IMPLEMENTATION
@@ -240,6 +240,8 @@
     The page header and page data are written in pairs. When writing page data
     (pfn N+1), if ENOSPACE error happens, the page headers after N won't be
     written either.
+    When reading page from incomplete core, only the page lost by ENOSPACE errors
+    has 0 in its corresponding page descriptor's member offset.
 
     If there is no page data dumped into the DUMPFILE, the DUMPFILE can't be
     analysed by crash.
-- 
1.7.1




More information about the kexec mailing list