Gentoo Archives: gentoo-dev

From: "Toralf Förster" <toralf.foerster@×××.de>
To: cgroups@×××××××××××.org
Cc: UML devel <user-mode-linux-devel@×××××××××××××××××.net>, gentoo-dev@l.g.o
Subject: [gentoo-dev] /sys/fs/cgroup/openrc/???/tasks sometimes missing
Date: Tue, 03 Jun 2014 18:08:55
Message-Id: 538E0F27.908@gmx.de
1 If I boot a 32 bit stable Gentoo Linux as a user mode linux guest with current kernels (host is a 32 bit stable Gentoo too), then I do observe sometimes during the boot process error messages from the init system of Gentoo (OpenRC) like the following (for subsystem rngd in this example) :
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3 * Starting haveged ... [ ok ]
4 /lib/rc/sh/rc-cgroup.sh: line 87: /sys/fs/cgroup/openrc/rngd/tasks: No such file or directory
5 * Starting rngd ... [ ok ]
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7 And indeed, that directory is missing. A restart of the appropriate service however creates those entries. The Gentoo bug entry https://bugs.gentoo.org/show_bug.cgi?id=489386 tells me :
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9 "It's known race in cgroups, I'm going to address this issue on one of the following weekends. The problem is that issue is not reproducible on my systems."
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11 but that's all since 5 months. Now I'm wondering if this just happens for an UML guest and who knows how to fix it ?
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13 --
14 Toralf

Replies

Subject Author
Re: [gentoo-dev] /sys/fs/cgroup/openrc/???/tasks sometimes missing Alex Xu <alex_y_xu@×××××.ca>