Re: [LTP] - Kernel - tunable max_map_count test failure - 20140115-46-g2368cd4

[Stanislav Kholmanskikh <stanislav.kholmanskikh@oracle.com>]

On 05/05/2014 10:52 AM, Diwakar Sharma (RBEI/ECF3) wrote:
> Hi,

Hi!

>
> I was getting the max_map_count test failed. It looked to me failing at filter_map function. The platform I'm working on is an i686 architecture running on Virtualbox.
> I added below additional macro condition and it's passing now. I want to understand if not including i686/386 was intentional originally for some reason? Also vdso part I added additionaly.
>
> #elif defined(__i686__) || defined(__i386__)
> static int filter_map(char *line)
> {
>          char buf[BUFSIZ];
>          int ret;
>
>          ret = sscanf(line, "%*p-%*p %*4s %*p %*2d:%*2d %*d %s", buf);
>          if (ret != 1)
>                  return 0;
>
>          return ((strcmp(buf, "[vdso]") == 0) | (strcmp(buf, "[vsyscall]") == 0));
> }
>
>
> On another similar architecture (but the actual h/w board), the same code gives messages like "4096 map entries in total, but expected 4096 entries" and reported FAIL, implying map_count and max_maps is same ( Contrary to map_count==max_maps+1 ). How do we analyze this scenario? Does this mean it is not exceeding by one for sysctl setting? How to verify that.
>

Which kernel version do you use? I want to check this test case in my 
environment.

Thanks.

PS: Also look at this thread 
http://sourceforge.net/p/ltp/mailman/ltp-list/thread/52009D26.4030609%40oracle.com/

>
> Thanks and Regards
> Diwakar Sharma
>
>
>
> ------------------------------------------------------------------------------
> Is your legacy SCM system holding you back? Join Perforce May 7 to find out:
> • 3 signs your SCM is hindering your productivity
> • Requirements for releasing software faster
> • Expert tips and advice for migrating your SCM now
> http://p.sf.net/sfu/perforce
> _______________________________________________
> Ltp-list mailing list
> Ltp-list@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/ltp-list
>

------------------------------------------------------------------------------
Is your legacy SCM system holding you back? Join Perforce May 7 to find out:
• 3 signs your SCM is hindering your productivity
• Requirements for releasing software faster
• Expert tips and advice for migrating your SCM now
http://p.sf.net/sfu/perforce
_______________________________________________
Ltp-list mailing list
Ltp-list@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/ltp-list