On 02/11/15 10:01, Richard Weinberger wrote: > 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<s 0:00 udevd --daemon >>> 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.
I may have to use that. There is a recurring sleep 1 in one of the scripts in udev on sarge which results in enough nanosleeps for this not to show up on an "out-of-the-box" sarge build. A. > > 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
