December 2012 - Arch-general - lists.archlinux.org

Re: [arch-general] NFS close-to-open
by bjschuma＠gmail.com 18 Dec '12

18 Dec '12

On Wed, Dec 12, 2012 at 9:34 AM, Paul Gideon Dann <pdgiddie(a)gmail.com>wrote: > On Wednesday 12 Dec 2012 08:58:52 you wrote: > > On 12/12/2012 05:35 AM, Paul Gideon Dann wrote: > > > On Tuesday 11 Dec 2012 12:08:46 you wrote: > > >> After more poking-about: filp_close() in the VFS calls > nfs_file_flush(), > > >> which writes the file back to the server. The struct file we're > given is > > >> freed up shortly after calling flush, so this looks like the last > chance > > >> we > > >> get to write changes (and I don't think we should change that). > > > > > > Hmm, so is this maybe an implementation limitation? I would expect > > > "nocto" to prevent that flushing, since that seems to be the main > purpose > > > of "nocto". But maybe it would have been too much work to buffer the > > > flushes, and so every file gets flushed on close anyway? > > > > > > Paul > > > > Something like that, yeah. "nocto" just applies to the attribute cache, > and > > does not change the flushing behavior. > > That's a pity. In that case, it seems the man page is a little > misleading, as > it at least implies (in the "Data and Metadata Coherence" section) that > "nocto" will disable the flushing. Also, at least some other > implementations > definitely do disable the flushing[1][2]. > > Do you know if this is a feature that can be requested? Since writes are > buffered already (unless mounted "sync"), I can't imagine it could be too > difficult to suppress the flush and let the file be written when the next > buffer is sent? But then I guess it would have been implemented already > if it > were that easy. > I double checked with Trond and he agrees that we shouldn't defer the flush because that would cause us to hold the file open for longer than we really should (and it would make NFS sillyrenames more difficult, too). - Bryan > > Paul > > [1]: http://docs.oracle.com/cd/E19082-01/819-2240/mount-nfs-1m/index.html > [2]: http://www.solarisinternals.com/wiki/index.php/File_Systems >

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[arch-general] need advices for the perfect web toolbox
by arnaud gaboury 17 Dec '12

17 Dec '12

Dear list, currently following the Sun certified web component developer course, I want to set up a http web server @ home to practice. I plan to virtualize a Arch server on my Arch box. I know we can talk about pro/con for hours, but I am interested in knowing your advices about the following apps: -http server : Apache or Nginx (curious to test the later) -container for my servlets : Tomcat ? -secure ftp server : ??? maybe a mail server: ??? I guess ssh will be the best way to talk to the server. Maybe other stuffs I forgot? What is the most common and simple way to secure the whole stuff without loosing too much responsiveness? Thank you for your advices. Regards.

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[arch-general] Mounting /var early in systemd
by Paul Gideon Dann 17 Dec '12

17 Dec '12

Hello all, I'm migrating a diskless cluster from initscripts to systemd. The problem I have is that the nodes each need to mount their own separate /var (identified by hostname) from the NFS server when they boot. With initscripts, I used a sysinit_end hook to do the job, which worked pretty well. However, with systemd I've really hit a brick wall. I can't get the unit to start early enough, because systemd creates so many sockets (in /var) so early, and there's no target that is ordered before the socket units are started. This means that the early sockets get masked when the "real" /var is mounted, and things break. I think the only solution with systemd is to explicitly specify each socket in "Before=" for my unit, which is likely to break if anything changes in future. It might also be possible to create a generator that automates this, but that's still pretty ugly. Right now, I'm thinking the only sensible solution is to forget doing it with systemd and push the mounting of /var up into initcpio, but that's admitting defeat. Any ideas? Paul

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[arch-general] evdev and touchscreen
by Δημήτρης Ζέρβας 17 Dec '12

17 Dec '12

I have the Samsung Galaxy Note 10.1 and I set up a chroot environment with Arch. I run Xorg server successfully, the S-Pen (digital pen) works out of the box with evdev driver, however I can't get the touchscreen to work. It's on /dev/input/event1 and I've tried: mtrack, multitouch, synaptics and it just don't work. no errors at all. I tried evdev and when I touch the screen it throws this [1] and dies. I also tried xf86-input-evdev-multitouch-git but it throws the same errors as the regular evdev I run e17, but I think that it's not a problem. my xorg.conf [2] [1]: http://pastebin.com/aGAWwDmh [2]: http://pastebin.com/TCeT9qr7

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Re: [arch-general] [arch-dev-public] syslinux 5.00 in [testing]
by Matthew Gyurgyik 16 Dec '12

16 Dec '12

On 12/08/2012 06:37 AM, Tobias Powalowski wrote: > Hi, > seems syslinux changed some things more than I expected, > could thomas or gerado look at the changes? > http://www.syslinux.org/archives/2012-December/018747.html > I don't have time this afternoon. > > If it keeps broken, I'll remove it this evening from testing repository. > > greetings > tpowa > The default modules that we place into /boot (menu.c32 vesamenu.c32 chain.c32 hdt.c32 reboot.c32 poweroff.com) depend on libutil_com.c32, libcom32.c32, libmenu.c32, libcom32gpl.c32 (new with syslinux 5.0) The syslinux-install_update script will need to be updated to include these extra modules. I will provide a patch in the next day or two, since I'm the original author. Simply adding the new modules to the script should work, but I want to test the following (thus the delay for the patch): 1) upgrade from syslinux4 -> syslinux5 2) new install using syslinux 5 Regards, Matthew Gyurgyik

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[arch-general] How to remember password and workgroup when connecting to Windows 7 share?
by Ardo Gorria 15 Dec '12

15 Dec '12

HI, I am new to Arch Linux but not to Linux as a whole. I'd be grateful for any advice on how to store the password as follows:- I am running an up to date Arch Linux system and have set up XFCE 4.1. As per the wiki I have installed gvfs-smb. I can browse my network from Thunar 1.6.1 and can access windows shares perfectly. When prompted I enter my username, workgroup and password and also click the radio button to 'remember forever' the password. The session is fine and I can copy files back and forward perfectly. However, after a reboot or unmounting the share, I am prompted to re-enter the Domain/Workgroup and also the password. Can anyone point me to how I can get the system to memorise these fields? I have gnome keyring installed, so I'm guessing it could be permissions or something else I haven't thought of. Grateful for any advice. A.

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[arch-general] dbus update - /etc/passwd merge question
by mike cloaked 14 Dec '12

14 Dec '12

Having read the available postings in arch-dev-public as well as those on this subject in the arch forums I am somewhat confused as to how to complete the merge for /etc/passwd /etc/shadow /etc/group and /etc/gshadow for the new entries in the .pacnew files. For example in my old /etc/passwd I have the line: dbus:x:81:81:System message bus:/:/bin/false and in the pacnew file I have: dbus:x:81:81:dbus:/:/sbin/nologin Should I put the line from the .pacnew file into the old file? Also for uidd I have in the original: uuidd:x:999:999::/:/sbin/nologin but in the pacnew file it is: uuidd:x:68:68:uuidd:/:/sbin/nologin Should I change the uid in the original file to 68 - and do the same in the corresponding entries for shadow, group and gshadow? I am an old linux user and usually I can sort things out after an upgrade but this time I am really confused. Any expert advice very much appreciated - thanks. -- mike c

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[arch-general] Getting microphone sound input in google-talkplugin for google-hangouts?
by Mike Cloaked 13 Dec '12

13 Dec '12

I have been trying to get my laptop set up using google hangouts - chrome works fine, and I installed the google-talkplugin from AUR. Sound is coming out from the speakers just fine ((and also on the gmail test sound output) - and the webcam is fine. I can use the jack audio facility to check that I can take sound input from the microphone and play it in the speakers. However I can't seem to get the google video chat to use input sound - and trying a test hangout I get a warning that my microphone is not configured correctly! I use alsa but not pulseaudio though I read in a post on the arch forum that installing pulse made no difference for another user who had sound problems with this also. I can't find any postings or wiki advice on sorting out this particular problem. Does anyone have any experience or tested workaround to get this sound issue resolved? Thanks -- mike c

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[arch-general] harddisk suspending far to often
by G. Schlisio 13 Dec '12

13 Dec '12

hi, after updating my laptop today [0] (no testing enabled) i notice that my harddisk keeps spinning down and up every 10 seconds or so. might this be related to the update or where can i stop this? help very appreciated georg [0] packages updated today: pcre libssh tdb bind lshw soundkonverter sage-mathematics lib32-glib2 lib32-harfbuzz lib32-pango lib32-fontconfig latex-beamer linux-headers linux-docs linux

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[arch-general] mythtv issues with HDTV and MPG ac3 audio
by Tobias Powalowski 13 Dec '12

13 Dec '12

Hi, Since upgrading to 0.26 series, i have serious issues with HD TV and DVB-S mpg conversion. I'm using latest git version of 0.26 from 121209. - HDTV looses audio complete if using high profile for conversion. - DVB-S mpg's are not convertable anymore with cutlists. The mpg's are not working to convert until I remove the ac3 audio stream manually with ffmpeg. With HDTV I don't get a working cutted recording. Do others observe such issues too? Thanks. greetings tpowa -- Tobias Powalowski Archlinux Developer & Package Maintainer (tpowa) http://www.archlinux.org tpowa(a)archlinux.org

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