----- Original Message -----
> From: "Lukáš Doktor" <[email protected]>
> To: [email protected], "Cleber Rosa" <[email protected]>,
> [email protected]
> Sent: Friday, July 20, 2012 8:45:32 PM
> Subject: [LTP] Broken kernel/mem/ksm01 test
>
> Hi guys,
>
> I'm testing LTP-20120614 on Fedora 17 and it always stuck on ksm01
> test.
I guess ksm service(user space) is on, which will set
/sys/kernel/mm/ksm/run to 0, then full_scans will stop to count,
this lead to the process(ksm01) stay in the following 'while()' all the time.
while (new_num < old_num * 3) {
sleep(1);
read_file(PATH_KSM "full_scans", buf);
new_num = SAFE_STRTOL(cleanup, buf, 0, LONG_MAX);
}
that's why the testing stuck on ksm01.
so you need to stop ksm service:
# systemctl stop ksm.service
after the ksm.service is stopped, I'm sure ksm01 can finish its job at least.
also the ksm0* cases have some error[1], the latest version has fixed them.
I suggest you use git version, which includes the fix(commit 60c41a5465cc5)
[1] http://sourceforge.net/mailarchive/message.php?msg_id=29088640
>
> I went through sources and the problem is I have KSM already enabled
> so
> the full_scans is a huge number. The function _group_check waits till
> KSM does 3 * full_scans which in my case never ends (well it might
> finish in a couple of years).
>
> To me it doesn't even make sense to wait 3 * full_scans as in the
> first
> check it waits 1-2 seconds, in second check it waits few seconds and
> it
> keeps growing further you goes.
>
> Would you please take look on this issue? I'd really appreciate it.
>
> Kind regards,
> Lukáš Doktor
>
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--
Thanks,
Zhouping
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