Currently, I always set HUGETLB_VERBOSE to 99 in order to get all the debug message.
And the understanding now is that by setting it to 1, we will get less detail.
Wouldn't it be more intuitive if we set to 100 to get more detailed if application segfaults ?
----------------------------------------------------
** Chakarat Skawratananond **
Linux Performance Team - Austin Tx
Tel: 512-823-6353 (t/l) 793-6353
| [EMAIL PROTECTED]
Sent by: [EMAIL PROTECTED] 10/16/2006 09:59 AM |
|
docs: Add information on HUGETLB_DEBUG
Signed-off-by: Steve Fox <[EMAIL PROTECTED]>
---
diff --git a/HOWTO b/HOWTO
index 2c0c47a..4a587c3 100644
--- a/HOWTO
+++ b/HOWTO
@@ -319,6 +319,9 @@ libhugetlbfs:
Specify the path to the hugetlbfs mount point
HUGETLB_SHARE
Explained in "Sharing remapped segments"
+ HUGETLB_DEBUG
+ Set to 1 if an application segfaults. Gives very detailed output
+ and runs extra diagnostics.
Sharing remapped segments:
--------------------------
@@ -403,6 +406,10 @@ exception is in cases where the library
happen if something goes wrong in the middle of unmapping and
remapping segments for the text/data/bss feature.
+If an application fails to run, set the environment variable HUGETLB_DEBUG
+to 1. This causes additional diagnostics to be run. This information should
+be included when sending bug reports to the libhugetlbfs team.
+
Trademarks
==========
--
Steve Fox
IBM Linux Technology Center
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