From: Nageswara R Sastry <rnsastry@linux.vnet.ibm.com>
To: ltp-list@lists.sourceforge.net
Subject: [LTP] [Patch 3/4] KSM test case fixes - mmap10
Date: Mon, 05 Sep 2011 15:47:17 +0530 [thread overview]
Message-ID: <4E64A1AD.3040104@linux.vnet.ibm.com> (raw)
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If the option for (-s) is selected then checking whether ksm related
directory exists in sysfs or not.
mmap10_2:
Before patch:
...
mmap10 0 TINFO : add to KSM regions.
mmap10 0 TINFO : use /dev/zero.
mmap10 0 TINFO : start tests.
mmap10 1 TBROK : madvise: errno=EINVAL(22): Invalid argument
mmap10 2 TBROK : Remaining cases broken
...
After patch:
...
mmap10 1 TCONF : KSM configuration is not enabled
mmap10 2 TCONF : Remaining cases not appropriate for configuration
...
mmap10_3, mmap10_4, mmap10_5:
Before patch:
...
mmap10 0 TINFO : add to KSM regions.
mmap10 0 TINFO : use anonymous pages.
mmap10 0 TINFO : start tests.
mmap10 1 TBROK : madvise: errno=EINVAL(22): Invalid argument
mmap10 2 TBROK : Remaining cases broken
...
After patch:
...
mmap10 1 TCONF : KSM configuration is not enabled
mmap10 2 TCONF : Remaining cases not appropriate for configuration
...
Signed-off-by: Nageswara R Sastry <rnsastry@linux.vnet.ibm.com>
--
Regards
R.Nageswara Sastry
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--- ltp.orig/testcases/kernel/syscalls/mmap/mmap10.c 2011-09-05 08:42:12.000000000 +0200
+++ ltp/testcases/kernel/syscalls/mmap/mmap10.c 2011-09-05 08:46:53.000000000 +0200
@@ -94,6 +94,11 @@ int main(int argc, char *argv[])
if (opt_ksm)
{
+ char *fname = "/sys/kernel/mm/ksm/";
+
+ if( access( fname, F_OK ) == -1 ) {
+ tst_brkm(TCONF, NULL, "KSM configuration is not enabled");
+ }
#ifdef HAVE_MADV_MERGEABLE
tst_resm(TINFO, "add to KSM regions.");
#else
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