From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1ZtBvc-0006xG-RV for user-mode-linux-devel@lists.sourceforge.net; Mon, 02 Nov 2015 10:01:28 +0000 Received: from a.ns.miles-group.at ([95.130.255.143] helo=radon.swed.at) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.76) id 1ZtBvb-0007Zm-GU for user-mode-linux-devel@lists.sourceforge.net; Mon, 02 Nov 2015 10:01:28 +0000 References: <1445416947-824802-1-git-send-email-aivanov@brocade.com> <562D236E.7020108@kot-begemot.co.uk> <562DFC90.9030308@nod.at> <5631BB4E.4010301@kot-begemot.co.uk> <1446304232.3238.8.camel@m3y3r.de> <5634DAA4.70308@nod.at> <1446304594.3238.11.camel@m3y3r.de> <5634DC7B.3010707@nod.at> <56371B6D.3080506@kot-begemot.co.uk> <563720BA.20107@nod.at> <563721BB.10003@kot-begemot.co.uk> <56372439.2070509@nod.at> <5637257A.8000200@kot-begemot.co.uk> <563728E2.5090901@nod.at> <563732B7.7050008@kot-begemot.co.uk> From: Richard Weinberger Message-ID: <5637346F.6060004@nod.at> Date: Mon, 2 Nov 2015 11:01:19 +0100 MIME-Version: 1.0 In-Reply-To: <563732B7.7050008@kot-begemot.co.uk> List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net Subject: Re: [uml-devel] [PATCH v3] um: Switch clocksource to hrtimers To: Anton Ivanov , Thomas Meyer Cc: "user-mode-linux-devel@lists.sourceforge.net" Am 02.11.2015 um 10:53 schrieb Anton Ivanov: > [snip] > >>>> I'm pretty sure that you don't see the issue as your Jessy userspace uses nanosleep periodically. >>> There are quite a few things running so this may indeed be the case. >>> >>> What do you use for userspace (so I can try to reproduce this and debug it)? >> Debian Squeeze amd64 with almost nothing running. >> >> PID TTY STAT TIME COMMAND >> 2 ? S 0:00 [kthreadd] >> 3 ? S 0:00 \_ [ksoftirqd/0] >> 4 ? S 0:00 \_ [kworker/0:0] >> 5 ? S< 0:00 \_ [kworker/0:0H] >> 6 ? S 0:00 \_ [kworker/u2:0] >> 7 ? S 0:00 \_ [kdevtmpfs] >> 8 ? S< 0:00 \_ [netns] >> 9 ? S< 0:00 \_ [writeback] >> 10 ? S 0:00 \_ [kworker/u2:1] >> 11 ? S< 0:00 \_ [crypto] >> 12 ? S 0:00 \_ [kworker/0:1] >> 13 ? S< 0:00 \_ [bioset] >> 14 ? S< 0:00 \_ [kblockd] >> 15 ? S 0:00 \_ [kswapd0] >> 68 ? S 0:00 \_ [fsnotify_mark] >> 221 ? S< 0:00 \_ [bioset] >> 229 ? S< 0:00 \_ [deferwq] >> 231 ? S 0:00 \_ [jbd2/ubda-8] >> 232 ? S< 0:00 \_ [ext4-rsv-conver] >> 233 ? S< 0:00 \_ [kworker/0:1H] >> 1 ? Ss 0:00 init [2] >> 271 ? S> 297 ? S< 0:00 \_ udevd --daemon >> 298 ? S< 0:00 \_ udevd --daemon >> 549 ? Sl 0:00 /usr/sbin/rsyslogd -c4 >> 580 ? Ss 0:00 /usr/sbin/cron >> 595 ? Ss 0:00 /usr/bin/dbus-daemon --system >> 609 ? Ss 0:00 /usr/sbin/sshd >> 628 tty0 Ss 0:00 /bin/login -- >> 631 tty0 S 0:00 \_ -bash >> 636 tty0 R+ 0:00 \_ ps fax >> 629 tty1 Ss+ 0:00 /sbin/getty 38400 tty1 linux >> 630 ttyS0 Ss+ 0:00 /sbin/getty 115200 ttyS0 linux > > I cannot reproduce that by dropping jessie into single user mode so I am going to build a squeeze image and re-test with that. I can also reproduce using init=/bin/bash. Thanks, //richard ------------------------------------------------------------------------------ _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel