Re: SL on Dell Precision M4800 Mobile Workstation
On Tue, Jan 27, 2015 at 12:39 PM, Yasha Karant ykar...@csusb.edu wrote: Can you explain why you are concerned about Nvidia Optimus on SL7? I think you're getting hybrid graphics confused with multi-display. Brandon Vincent
Re: SL on Dell Precision M4800 Mobile Workstation
On Tue, Jan 27, 2015 at 11:17 AM, Brandon Vincent brandon.vinc...@asu.edu wrote: Everything seems to work minus a slight DPI issue I had with the proprietary Nvidia driver which was easily correctable. Only the web cam doesn't seem to work. The web cam issue might be this one: http://bugs.centos.org/view.php?id=7815 which has hopefully been fixed in the latest kernel update. Akemi
Re: SL on Dell Precision M4800 Mobile Workstation
On Tue, Jan 27, 2015 at 1:17 PM, Akemi Yagi amy...@gmail.com wrote: The web cam issue might be this one: http://bugs.centos.org/view.php?id=7815 which has hopefully been fixed in the latest kernel update. It looks like you're right, I was getting the same error message. I switched to a much older kernel and the webcam started working again. Looks like the latest kernel, 2.6.32-504.3.3 is still impacted. Brandon Vincent
Re: gdbm update broke my yp make
With the update that came in this morning from fastbugs, gdbm-1.8.0-37.el6.x86_64, I now get: ... [make -C /var/yp bombs] The corrected -38 package was just released: https://rhn.redhat.com/errata/RHBA-2015-0089.html https://bugzilla.redhat.com/show_bug.cgi?id=1180392 Hope to see it soon... -- Konstantin Olchanski Data Acquisition Systems: The Bytes Must Flow! Email: olchansk-at-triumf-dot-ca Snail mail: 4004 Wesbrook Mall, TRIUMF, Vancouver, B.C., V6T 2A3, Canada
Re: SL on Dell Precision M4800 Mobile Workstation
Not familiar with that model but had very good success with the earlier models of the Dell Precision Mobile Workstation series that ran linux well. On Mon, 26 Jan 2015, Phil Wyett wrote: On Mon, 2015-01-26 at 21:10 -0800, Yasha Karant wrote: I am considering replacing my current HP 8530p with a Dell Precision M4800 Mobile Workstation . I have looked at Linux on Laptops, but this Dell model does not seem to appear. Does anyone have Linux experience with the above Dell model? Note that SL 6 works well on my HP 8530p . Thanks for any information. Yasha Karant Hi, This laptop supports RHEL 6.4 or greater. http://www.dell.com/uk/business/p/precision-m4800-workstation. See the tech specs lower on the page. Regards Phil -- Steven C. Timm, Ph.D (630) 840-8525 t...@fnal.gov http://home.fnal.gov/~timm/ Office: Wilson Hall room 804 Fermilab Scientific Computing Division, Scientific Computing Facilities Quadrant., Experimental Computing Facilities Dept., Project Lead for Virtual Facility Project.
Re: SL on Dell Precision M4800 Mobile Workstation
Can you explain why you are concerned about Nvidia Optimus on SL7? http://www.nvidia.com/download/driverresults.aspx/78469/en-us is the Nvidia CUDA-compatible driver for Linux. I am using this driver on my office workstation (that has a CUDA GPU) under SL 7 and I have no issues -- albeit I am not using it dual display (multiple displays) as I would were I to take the laptop to an external projector (as in a seminar). I have successfully configured my current HP laptop under IA-32 SL 6 to be dual display so that the laptop screen and the projected image are both visible and I can face the audience without needing to work from the projected image. Is this driver not working well with laptops under SL? Otherwise, I will need to get the non-Nvidia package on the M4800 that is in the process of being ordered. Yasha Karant On 01/27/2015 07:50 AM, Karel Lang AFD wrote: Hi, i, for one, would approach any laptop using Nvidia Optimus technology with caution, particularly if i want to run Linux on it. I googled your laptop config and it comes with 'Intel® Core™ i7-4900MQ Processor' meaning Intel® HD Graphics 4600 built in. I just wander, why the laptop sellers stopped to announce Nvidia Optimus technology on their laptops - nowadays noone says a word. Is it because it got a bad rep? In my eyes it indeed does. Bumblebee is working solution on Linux, but not entirely convenient? - you need to switch between VGAs manually as far as i understand the problem. I don't have personal experience with Optimus, as i do not own any newer built laptop (my own is 6yrs old). But after reading many many angry threads on various linux (and even a windows) forums, i'd think twice before buying one.
Re: CVE-2015-0235 / RHSA-2015:0092
Hi again all, This might be a false alarm. I tried to do more testing on different systems and have been unable to reproduce this... I did a full package check and all was good. Reinstalled the latest updates to glibc and things worked properly this time. If you want extra safety, for this upgrade, make sure you have a copy of the old packages in case you find a problem too... On 28/01/2015 5:30 PM, Steven Haigh wrote: Hi all, Looks like there is something wrong with the new glibc packages pushed to address this. With the following packages installed: glibc-2.12-1.149.el6_6.5 glibc-common-2.12-1.149.el6_6.5 Many segfaults like: sed[749]: segfault at 0 ip 0030004c4800 sp 7fff71c57038 error 6 in libc-2.12.so[300040+18a000] sed[763]: segfault at 0 ip 0030004c4800 sp 7fff78303768 error 6 in libc-2.12.so[300040+18a000] sed[785]: segfault at 0 ip 0030004c4800 sp 7fff1b4d04c8 error 6 in libc-2.12.so[300040+18a000] sed[792]: segfault at 0 ip 0030004c4800 sp 7fffae46a6d8 error 6 in libc-2.12.so[300040+18a000] grep[925]: segfault at 2a0 ip 0030004c2003 sp 7fffbb544dd0 error 6 in libc-2.12.so[300040+18a000] grep[937]: segfault at 2a0 ip 0030004c2003 sp 7fff830c0130 error 6 in libc-2.12.so[300040+18a000] sed[1028]: segfault at 0 ip 0030004c2091 sp (null) error 6 in libc-2.12.so[300040+18a000] sed[1050]: segfault at 0 ip 0030004c4800 sp 7fffbf52de08 error 6 in libc-2.12.so[300040+18a000] sed[1055]: segfault at 0 ip 0030004c4800 sp 7fff15bde3f8 error 6 in libc-2.12.so[300040+18a000] sed[1074]: segfault at 0 ip 0030004c4800 sp 7fff7bc97858 error 6 in libc-2.12.so[300040+18a000] sed[1079]: segfault at 0 ip 0030004c4800 sp 7fff01b59ab8 error 6 in libc-2.12.so[300040+18a000] grep[1180]: segfault at 2e0 ip 0030004c2003 sp 7fff58432e70 error 6 in libc-2.12.so[300040+18a000] egrep[1427]: segfault at 320 ip 0030004c2003 sp 7fffda712ba0 error 6 in libc-2.12.so[300040+18a000] smartd[1478]: segfault at 160 ip 7f3978f56003 sp 7fff0b2501b0 error 6 in libc-2.12.so[7f3978e94000+18a000] xl[1489]: segfault at 0 ip 0030004c2091 sp (null) error 6 in libc-2.12.so[300040+18a000] xl[1491]: segfault at 0 ip 0030004c2091 sp (null) error 6 in libc-2.12.so[300040+18a000] xl[1495]: segfault at 0 ip 0030004c2091 sp (null) error 6 in libc-2.12.so[300040+18a000] xl[1497]: segfault at 0 ip 0030004c2091 sp (null) error 6 in libc-2.12.so[300040+18a000] xl[1501]: segfault at 0 ip 0030004c2091 sp (null) error 6 in libc-2.12.so[300040+18a000] xl[1503]: segfault at 0 ip 0030004c2091 sp (null) error 6 in libc-2.12.so[300040+18a000] xl[1618]: segfault at 0 ip 0030004c2091 sp (null) error 6 in libc-2.12.so[300040+18a000] xl[1619]: segfault at 0 ip 0030004c2091 sp (null) error 6 in libc-2.12.so[300040+18a000] sed[1652]: segfault at 0 ip 0030004c2091 sp (null) error 6 in libc-2.12.so[300040+18a000] sed[1661]: segfault at 0 ip 0030004c2091 sp (null) error 6 in libc-2.12.so[300040+18a000] sed[1671]: segfault at 0 ip 0030004c4800 sp 7fffb757a6b8 error 6 in libc-2.12.so[300040+18a000] sed[1678]: segfault at 0 ip 0030004c4800 sp 71e3db48 error 6 in libc-2.12.so[300040+18a000] sed[1688]: segfault at 0 ip 0030004c4800 sp 7fff550a3b68 error 6 in libc-2.12.so[300040+18a000] sed[1708]: segfault at 0 ip 0030004c4800 sp 7fffe1127118 error 6 in libc-2.12.so[300040+18a000] sed[1744]: segfault at 0 ip 0030004c2091 sp (null) error 6 in libc-2.12.so[300040+18a000] sed[1768]: segfault at 0 ip 0030004c4800 sp 7fffee010d28 error 6 in libc-2.12.so[300040+18a000] sed[1775]: segfault at 0 ip 0030004c4800 sp 7fff13814028 error 6 in libc-2.12.so[300040+18a000] Downgrading to 2.12-1.149.el6_6.4 gives me a working system again. On 28/01/2015 11:44 AM, Steven Haigh wrote: As an FYI: A heap-based buffer overflow was found in __nss_hostname_digits_dots(), which is used by the gethostbyname() and gethostbyname2() glibc function call. A remote attacker could use this flaw to execute arbitary code with the permissions of the user running the application. https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2015-0235 https://rhn.redhat.com/errata/RHSA-2015-0092.html -- Steven Haigh Email: net...@crc.id.au Web: http://www.crc.id.au Phone: (03) 9001 6090 - 0412 935 897 signature.asc Description: OpenPGP digital signature
RE: SL on Dell Precision M4800 Mobile Workstation
With Lenovo anyway, there is a BIOS setting to select the graphics card you want to use, with Auto / Optimus the default. Change to PCI / External for the nVidia card or Internal for Intel, and it works fine for SL6.x... -- James Pulver CLASSE Computer Group Cornell University -Original Message- From: owner-scientific-linux-us...@listserv.fnal.gov [mailto:owner-scientific-linux-us...@listserv.fnal.gov] On Behalf Of Karel Lang AFD Sent: Tuesday, January 27, 2015 10:51 AM To: Lamar Owen; SCIENTIFIC-LINUX-USERS@FNAL.GOV Subject: Re: SL on Dell Precision M4800 Mobile Workstation Hi, i, for one, would approach any laptop using Nvidia Optimus technology with caution, particularly if i want to run Linux on it. I googled your laptop config and it comes with 'Intel(r) Core(tm) i7-4900MQ Processor' meaning Intel(r) HD Graphics 4600 built in. I just wander, why the laptop sellers stopped to announce Nvidia Optimus technology on their laptops - nowadays noone says a word. Is it because it got a bad rep? In my eyes it indeed does. Bumblebee is working solution on Linux, but not entirely convenient? - you need to switch between VGAs manually as far as i understand the problem. I don't have personal experience with Optimus, as i do not own any newer built laptop (my own is 6yrs old). But after reading many many angry threads on various linux (and even a windows) forums, i'd think twice before buying one. -- *Karel Lang* *Unix/Linux Administration* l...@afd.cz | +420 731 13 40 40 AUFEER DESIGN, s.r.o. | www.aufeerdesign.cz On 01/27/2015 03:54 PM, Lamar Owen wrote: On 01/27/2015 12:10 AM, Yasha Karant wrote: I am considering replacing my current HP 8530p with a Dell Precision M4800 Mobile Workstation . Dell Precision Mobile Workstations are (and have been for a long while now) available with Red Hat Enterprise Linux preinstalled (as long as you're in the correct portal; I think you need to be in one of the business portals, not the individual one, where they push Inspirons instead of Latitudes and Precisions). If RHEL will work, so will SL (or CentOS, for that matter). My M6500 works very well with CentOS 7 (and it would with SL 7 as well), and my previous M4300 worked very well with CentOS 6 (and would have worked well with SL6).
Re: Hybrid disk drives
On Tue, Jan 27, 2015 at 08:20:36AM -0800, Yasha Karant wrote: There are hybrid disk drives that have a small SSD flash memory along with the regular spinning media, typically to serve as a cache for lower latency. Does anyone have long term experience with these units? Most flash memory is not designed for the long term repeated read/write/erase cycles of a primary disk drive -- how are these holding up? Is the flash configuration totally transparent to the Linux file systems and formatting operations? This type of device is not useful for DAQ applications: - for bulk data storage (4TB and bigger), the SSD cache is not useful, - for OS, everything fits on a normal SSD, - for user home directory, maybe useful, but the standard computer already has 1 SSD (OS) and 2 HDD (raid1 mirrored for bulk data storage), adding 2 more hybrid HDDs just for user home dir makes no sense (would make it 5 devices grand total). Also I notice that all hybrid HDDs listed at newegg.ca have only 8GB of SSD, this is very small, one is better off adding 8GB of RAM - RAM is faster than SSD and the linux kernel data cache is more effective than firmware data cache. (If your OS is Windows or MacOS with brain dead data caching, then sure, hybrid HDD may be a good idea). -- Konstantin Olchanski Data Acquisition Systems: The Bytes Must Flow! Email: olchansk-at-triumf-dot-ca Snail mail: 4004 Wesbrook Mall, TRIUMF, Vancouver, B.C., V6T 2A3, Canada
Re: SL7: Missing texlive-* packages
On 26 January 2015 at 17:42, Chris Schanzle schan...@nist.gov wrote:
On 01/23/2015 07:31 PM, Steve Gaarder wrote:
Here's what I'm working on to provide a full complement of TeX goodies
on SL7:
I installed the latest TeXlive in a network directory accessible to all
my SL7 machines. I am working on creating an RPM that will install
symlinks to all the relevant commands etc, and that RPM's spec file will
have a provides for everything that the upstream Texlive package
provides. In that way I should be able to install RPMs that depend on TeX
(e.g. kile) without triggering an install of the upstream packages. Any
feedback on this?
I'm essentially in your same position. A few of my users I point to my
Fedora box which has 'yum install texlive-scheme-full'.
Where that didn't work well, for two users, I've copied a whole (44
collections out of 45) portable install locally and update it with a cron
job every weekend. I drop to environment files into /etc/profile.d/ so it
appears near the front of their PATH:
== /etc/profile.d/texlive.csh ==
set d=/local/texlive/2014/bin/x86_64-linux
if ( ${path} !~ *$d* ) then
set path = ( $d $path )
endif
== /etc/profile.d/texlive.sh ==
d=/local/texlive/2014/bin/x86_64-linux
[ -d $d ] pathmunge $d
unset d
As I have my own local repo of packages, I'm *this close* to just
packaging up that whole install (3.3 GB, texmf-dist/doc is 1.51 GB) into a
single RPM (must be 4.0GB) and update/install that as needed. I do this
for matlab and a few others, just haven't gotten 'round to it yet.
IMHO, it's insane/wasteful/slows down yum for Fedora to have over 2,700
texlive packages installed. And after a glance of yum logs, they've never
updated just a few packages...
You should engage the texlive maintainers then to see how they can better
meet your needs. The issue was that they heard a lot from people who don't
want 4GB of tex. They want 10 mb of TeX for some documents in other builds
and other things. That tends to be the vocal users of TeX as they see TeX
needing to be installed on a buildroot because some Makefile is making a
ps/pdf/dvi file and pulls in TeX to do so.
smooge .whoowns texlive
zodbot smooge: jnovy
smooge .fasinfo jnovy
zodbot smooge: User: jnovy, Name: Jindrich Novy, email:
novyjindr...@gmail.com, Creation: 2005-04-13, IRC Nick: jnovy, Timezone:
UTC, Locale: en, GPG key ID: F8B64257, Status: active
zodbot smooge: Approved Groups: cla_done fedorabugs packager cla_redhat
cla_fedora @svnsetarch @svnhardlink @gitappstack provenpackager
@gitsoftwarecollections
--
Stephen J Smoogen.
Hybrid disk drives
There are hybrid disk drives that have a small SSD flash memory along with the regular spinning media, typically to serve as a cache for lower latency. Does anyone have long term experience with these units? Most flash memory is not designed for the long term repeated read/write/erase cycles of a primary disk drive -- how are these holding up? Is the flash configuration totally transparent to the Linux file systems and formatting operations? Yasha Karant
