From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 66561198005 for ; Sun, 24 Feb 2013 11:02:57 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 0FC45E05ED; Sun, 24 Feb 2013 11:02:39 +0000 (UTC) Received: from mail.muc.de (colin.muc.de [193.149.48.1]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id E97C4E002B for ; Sun, 24 Feb 2013 11:02:36 +0000 (UTC) Received: (qmail 18883 invoked by uid 3782); 24 Feb 2013 11:02:34 -0000 Received: from acm.muc.de (pD9556B76.dip.t-dialin.net [217.85.107.118]) by colin.muc.de (tmda-ofmipd) with ESMTP; Sun, 24 Feb 2013 12:02:31 +0100 Received: (qmail 2293 invoked by uid 1000); 24 Feb 2013 11:02:01 -0000 Date: Sun, 24 Feb 2013 11:02:01 +0000 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Kernel 3.7.9: Lots of devices are root root rw-------. Message-ID: <20130224110201.GA2212@acm.acm> References: <20130223171841.GA3178@acm.acm> <5129D2E3.5020206@gmail.com> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5129D2E3.5020206@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Delivery-Agent: TMDA/1.1.12 (Macallan) From: Alan Mackenzie X-Primary-Address: acm@muc.de X-Archives-Salt: b8975dc3-e26c-41f7-802e-4c56ae423aee X-Archives-Hash: 1a7b0d761690fedbfad10eb7fce60a4b On Sun, Feb 24, 2013 at 10:44:19AM +0200, Alan McKinnon wrote: > On 23/02/2013 19:18, Alan Mackenzie wrote: > > Hi, Gentoo! > > Just built the new kernel 3.7.9 last night, and it's one of these > > "nothing works" situations. Sorry, I was exaggerating here. I can work normally as long as I don't try to use a peripheral, such as printer, audio, or scanner. My network connection is working OK. > > It seems the problems are with the device files, whose ownership is set > > to "root root" (rather than, e.g., "root audio") and whose permissions > > are set to crw------- (rather than the expected crw-rw----). > > I'm still running udev-171-r10. This might well make a difference. > > Needless to say, everything works under kernel 3.6.11. It would be nice > > if there were some mistake in my kernel config. > > Could somebody help me get this fixed, please. > udev sets ownership and permissions on devices nodes, not the kernel. > I'd guess your udev setup is incompatible with 3.7.* so let's start with > the usual: > What is your kernel config for the various TMPFS settings in the kernel? > (grep TMPFS in .config) CONFIG_DEVTMPFS=y CONFIG_DEVTMPFS_MOUNT=y CONFIG_TMPFS=y CONFIG_TMPFS_POSIX_ACL=y CONFIG_TMPFS_XATTR=y > What mount options apply to /dev? On my (working) 3.6.11: devtmpfs on /dev type devtmpfs (rw,relatime,size=1988792k,nr_inodes=497198,mode=755) On my (non-working) 3.7.9: devtmpfs on /dev type devtmpfs (rw,relatime,size=1988680k,nr_inodes=497170,mode=755) > Contents of /etc/fstab? (Leading comments have been removed.) #/dev/BOOT /boot ext2 noauto,noatime 1 2 /dev/md6 / ext3 noatime 0 1 /dev/sda2 none swap sw 0 0 /dev/sdb2 none swap sw 0 0 #/dev/mapper/vg-usr /usr ext3 noatime 1 2 /dev/mapper/vg-usrportage /usr/portage ext2 noatime 1 2 /dev/mapper/vg-usrportagedistfiles /usr/portage/distfiles ext2 noatime 1 2 /dev/mapper/vg-usrsrc /usr/src ext3 noatime 1 2 /dev/mapper/vg-home /home ext3 noatime 1 2 /dev/mapper/vg-opt /opt ext3 noatime 1 2 /dev/mapper/vg-var /var ext3 noatime 1 2 /dev/mapper/vg-varspoolmail /var/spool/mail ext3 noatime 1 2 /dev/mapper/vg-varspoolnews /var/spool/news reiserfs noatime 1 2 /dev/mapper/vg-vardbpkg /var/db/pkg ext3 noatime 1 2 /dev/mapper/vg-iso /iso ext2 noatime 1 2 /dev/mapper/vg-old /old ext2 noatime 1 2 /dev/mapper/vg-vg--backup /backup ext2 noatime 1 2 /dev/cdrom /mnt/cdrom auto noauto,ro 0 0 /dev/fd0 /mnt/floppy auto noauto 0 0 # glibc 2.2 and above expects tmpfs to be mounted at /dev/shm for # POSIX shared memory (shm_open, shm_unlink). # (tmpfs is a dynamically expandable/shrinkable ramdisk, and will # use almost no memory if not populated with files) shm /dev/shm tmpfs nodev,nosuid,noexec 0 0 > USE flags that apply to udev? [ebuild R ] sys-fs/udev-171-r10 USE="gudev hwdb introspection keymap rule_generator -action_modeswitch -build -debug -edd (-extras) -floppy (-selinux) {-test}" > -- > Alan McKinnon > alan.mckinnon@gmail.com -- Alan Mackenzie (Nuremberg, Germany).