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kmod-nvidia problems
by Rob Kampen 11 Dec '16

11 Dec '16

Hi List, I use the kmod-nvidia package on my CentOS workstations. Always this has "just worked". Doing a yum update this morning I now get this: 09:15:28 : ERROR: Package: kmod-nvidia-367.57-2.el7.elrepo.x86_64 (elrepo) Requires: kernel(drm_atomic_helper_plane_reset) = 0xabd4c98d Installed: kernel-3.10.0-327.28.2.el7.x86_64 (@updates) kernel(drm_atomic_helper_plane_reset) = 0xb23805db Installed: kernel-3.10.0-327.28.3.el7.x86_64 (@updates) kernel(drm_atomic_helper_plane_reset) = 0xb23805db Installed: kernel-3.10.0-327.36.1.el7.x86_64 (@updates) kernel(drm_atomic_helper_plane_reset) = 0xb23805db Installed: kernel-3.10.0-327.36.2.el7.x86_64 (@updates) kernel(drm_atomic_helper_plane_reset) = 0xb23805db Installed: kernel-3.10.0-327.36.3.el7.x86_64 (@updates) kernel(drm_atomic_helper_plane_reset) = 0xb23805db Available: kernel-3.10.0-327.el7.x86_64 (base) kernel(drm_atomic_helper_plane_reset) = 0xb23805db Available: kernel-3.10.0-327.3.1.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb23805db Available: kernel-3.10.0-327.4.4.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb23805db Available: kernel-3.10.0-327.4.5.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb23805db Available: kernel-3.10.0-327.10.1.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb23805db Available: kernel-3.10.0-327.13.1.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb23805db Available: kernel-3.10.0-327.18.2.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb23805db Available: kernel-3.10.0-327.22.2.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb23805db Available: kernel-debug-3.10.0-327.el7.x86_64 (base) kernel(drm_atomic_helper_plane_reset) = 0xb92b713d Available: kernel-debug-3.10.0-327.3.1.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb92b713d Available: kernel-debug-3.10.0-327.4.4.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb92b713d Available: kernel-debug-3.10.0-327.4.5.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb92b713d Available: kernel-debug-3.10.0-327.10.1.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb92b713d Available: kernel-debug-3.10.0-327.13.1.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb92b713d Available: kernel-debug-3.10.0-327.18.2.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb92b713d Available: kernel-debug-3.10.0-327.22.2.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb92b713d Available: kernel-debug-3.10.0-327.28.2.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb92b713d Available: kernel-debug-3.10.0-327.28.3.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb92b713d Available: kernel-debug-3.10.0-327.36.1.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb92b713d Available: kernel-debug-3.10.0-327.36.2.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb92b713d Available: kernel-debug-3.10.0-327.36.3.el7.x86_64 (updates) kernel(drm_atomic_helper_plane_reset) = 0xb92b713d Anyone else get this? any pointers? TIA Rob

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Has deleted user, why I can still get info of it
by truename 10 Dec '16

10 Dec '16

I del user 'u1': # userdel u1 But: # groups u1 u1 : g1 Is 'u1' delete? Thansk

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trouble installing centos 6.8
by Emma M Birath 09 Dec '16

09 Dec '16

Dear all, I'm having trouble installing Centos 6.8, in a VM using VirtualBox, and hoping that someone on this distribution can help. I'm running VirtualBox Version 5.1.4 r110228 (Qt5.5.1). I downloaded .iso files for Centos 6.8: - CentOS-6.8-x86_64-bin-DVD1.iso - CentOS-6.8-x86_64-bin-DVD2.iso I proceeded to set up a new VM, selecting Linux / RedHat 64 bit. I selected the DVD1 iso file above as "IDE Primary Master" and the DVD2 as "IDE Secondary Master". I then clicked "Start", expecting to be able to install the operating system. Instead of gives me a bunch of output I don't understand, and then it just hangs. I've attached a screen-shot. I tried to re-download the iso files, from a different mirror. Same issue. Any ideas? Thank you Emma

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bash on ubuntu (centos) on windows
by Jerry Geis 08 Dec '16

08 Dec '16

HI All - I was searching for "bash on centos on windows" as opposed to "bash on ubuntu on windows". Will there be or is there a centos on windows version? Thanks, Jerry

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You have not permission to view content of this location
by truename 08 Dec '16

08 Dec '16

OS: CentosOS 7 I have installed samba + openldap + smbldap-tools + pam by: yum --enablerepo=extras install -y epel-release yum install -y smbldap-tools yum install -y samba openldap openldap-clients openldap-servers migrationtools yum install -y nss-pam* I know that smbldap-tools is a dead project, but I'm interested in it and would like research on it. I create users and groups by: sudo smbldap-groupadd -a g1 sudo smbldap-groupadd -a g2 sudo smbldap-useradd -a -P -g 1001 u1 sudo smbldap-useradd -a -P -g 1002 u1 groups u1 u1 : g1 groups u2 u2 : g2 I create shared folder: cd / sudo mkdir data sudo chown u1 /data sudo chgrp g1 /data sudo chmod ugo+rwx /data I edit /etc/samba/smb.conf: [data] comment = data path = /data valid users = u1,u2 write list = u1,u2 create mask = 0777 sync always = Yes ; hide dot files = yes ; writeable = no And then: sudo service smb restart When I open file manager and input following in location box: smb://127.0.0.1 The shared folder data is shown, I click the shared folder and input username u1 and password, I get error message: You have not permission to view content of this location The error message is Chinese in my system, I translate it into English. Thanks

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Re: [CentOS] BUG: soft lockup - CPU#0 stuck for 36s! [swapper/0:0]
by KM 08 Dec '16

08 Dec '16

Not sure if this was the last email on this. If not ignore me. However I found a post for new operating systems that says to set the watchdog_thresh value instead of softlockup_thresh. http://askubuntu.com/questions/592412/why-is-there-no-proc-sys-kernel-softl… this is an Ubuntu post, but on my CentOS 7 system this parameter exists, and softlockup_thresh does not. I have set it but I will need to see if I still get the CPU lock up messages on my VM. I hope this helps.KM From: correomm <correomm(a)gmail.com> To: CentOS mailing list <centos(a)centos.org> Sent: Thursday, August 18, 2016 1:50 PM Subject: Re: [CentOS] BUG: soft lockup - CPU#0 stuck for 36s! [swapper/0:0] Yes, I tried it, but does not exists: vmguest # cat /proc/sys/kernel/softlockup_thresh cat: /proc/sys/kernel/softlockup_thresh: No such file or directory On Thu, Aug 18, 2016 at 2:06 PM, Carlos A. Carnero Delgado < carloscarnero(a)gmail.com> wrote: > 2016-08-18 12:39 GMT-04:00 correomm <correomm(a)gmail.com>: > > > This bug is reported only on the VM's with CentOS 7 running on on VMware > > ESXi 5.1. > > The vSphere performance graph shows high CPU consume and disk activity > only > > on VM's with CentOS 7. Sometimes I can not connect remotely with ssh > > (timeout error). > > > > I'm also seeing those errors in several servers, running under 5.5. > Currently investigating if this > <https://kb.vmware.com/selfservice/microsites/search. > do?language=en_US&cmd=displayKC&externalId=1009996> > has anything to do (the resource overcommit bit). > > HTH, > Carlos. > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > https://lists.centos.org/mailman/listinfo/centos > _______________________________________________ CentOS mailing list CentOS(a)centos.org https://lists.centos.org/mailman/listinfo/centos

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Unusual System State
by Chris Olson 07 Dec '16

07 Dec '16

Our smallest network of systems has only four computers connected via Gigabit Ethernet. The oldest and most stable platform is an eight year old Dell E520 running CentOS 6.8. We often try out applications on this Dell/CentOS machine before moving them to other systems on our other networks. Last night, one of our users decided to create a single, 228GB home directory tar archive on an empty, 500GB, external, USB, Ext4 disk drive. This was obviously a poor decision. The extent of the results were not obvious until this morning. All disk activity had stopped and the system appeared to be hibernation. A push on the power button usually brings the system back to life, but in this case, the unlock screen was presented for only three seconds and then the hibernation mode was resumed. Repeated attempts to log on were all thwarted due to this behavior. ssh from other systems wasalso not possible. Holding the power button in order to initiate power down did not work either. The result was the same as a one second press of front panel power button bringing up the unlock screen for only a short time. We eventually removed the power cord for five minutes and then restarted the machine. The system is running normally once again. The corrupted file system on the USB disk has been restored by re-partitioning and building a new Ext4 file system on it. The user no longer gets to use external disks. Examination of log files and the dmesg output did not yield any useful information regarding the unusual state of the system when unlock logon was not possible. Is there somewhere else we should look for evidence of what actually happened and the unusual state of the system. Thanks. [user@computer ~]$ uname -a Linux computer 2.6.32-642.11.1.el6.x86_64 #1 SMP Fri Nov 18 19:25:05 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux [user@computer ~]$

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Re: [CentOS] CentOS 6, firefox, PIV cards
by Denniston, Todd A CIV NAVSURFWARCENDIV Crane, JXVS 07 Dec '16

07 Dec '16

m.roth at 5-cent.us further wrote: ############## m.roth at 5-cent.us wrote: > Hi, folks, > > Up until a few weeks ago, it worked as it has been for years: firefox, > security device is libcoolkey, and pcscd. > > Today, I go to use it (I have done updates sine I last used it), and > try preferences->advanced->certificates, and it hangs. My most recent > try was for over 20 min. If you move something over the window, then > move it away, it's a blank window. Pull out the card, and *some* of the > time, it pops up the window showing no certs, having never asked for a > PIN. The rest of the time, firefox crashes, hard. > > I know the pcscd part works - I used it via a script this morning from > the command line, as does pkcs15-tool from the command line. > > Anyone got any clues? Maybe I should downgrade (if I can) firefox? > Additional info: I tried bringing up firefox with two other profiles. One didn't have coolkey as a security device, but when I tried to add it, it responded with "cannot add module". Yet a third profile, that had both libcoolky and the older onepin, and that popped up a window saying I needed to authenticate, sat there with no way to put a pin in, then, when I pulled the card, it flashed the popup window with my certs. Yes, at this time, I'm looking at issues with firefox. So - has anyone else had this problem? mark ################# Not yet had the issue(s) but I do have some questions: 1) is this with the same physical PIV that you have been using "Up until a few weeks ago", that is did you (or the affected person) get a new PIV recently? 1a) does firefox have the certificate authorities loaded which cover the card in question (make sure to trace back to the root CA, there have been changes)? 2) have you tried just `yum downgrade firefox` and see if it works? 2a) I would be tempted to do something on the order of `rpm -qa --last |head -50` and then for each package seen there do an rpm -q --verify (syntax unsure) on them to be sure all the packages got installed correctly. 3) same as (2) but with recent nss|coolkey|pcscd updates? 4) interrupted updates? i.e., `yum complete-transaction` (sp???) `yum reinstall firefox nss coolkey pcscd` Even when this disclaimer is not here: I am not a contracting officer. I do not have authority to make or modify the terms of any contract.

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ASL enters EPEL7: Hardware accelerated multiphysics simulation platform
by Zeev Pekar 07 Dec '16

07 Dec '16

Dear CentOS community, Due to efforts of Fedora maintainers ASL ( http://asl.org.il/ ) entered EPEL7 ( libASL ) today and now can be easily installed and deployed: https://admin.fedoraproject.org/pkgdb/package/rpms/libASL/ All the best, Zeev About ASL --------- Advanced Simulation Library (ASL) is a free and open source hardware accelerated multiphysics simulation platform (and an extensible general purpose tool for solving Partial Differential Equations). Its computational engine is written in OpenCL and utilizes matrix-free solution techniques which enable extraordinarily high performance, memory efficiency and deployability on a variety of massively parallel architectures, ranging from inexpensive FPGAs, DSPs and GPUs up to heterogeneous clusters and supercomputers. The engine is hidden entirely behind simple C++ classes, so that no OpenCL knowledge is required from application programmers. Mesh-free, immersed boundary approach allows one to move from CAD directly to simulation drastically reducing pre-processing efforts and amount of potential errors. ASL can be used to model various coupled physical and chemical phenomena and employed in a multitude of fields: computational fluid dynamics, virtual sensing, industrial process data validation and reconciliation, image-guided surgery, computer-aided engineering, design space exploration, crystallography, etc..

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Kernel Panic at Boot
by Ken Smith 07 Dec '16

07 Dec '16

Hi All, This is a Centos 6.4 system used as a home server and Myth backend machine. It has just suffered a motherboard failure and I have got a identical replacement. This machine normally runs in run level 3. It has a NVidia graphics card and the NVidia driver installed but I found it crashed the machine as soon as I started X on there. So I never bothered with X and left it in RL3. So as part of the re-commissioning of this machine I decided to remove the NVidia driver and go back to Nouveau. I shouldn't have bothered. Even starting in RL1 it kernel panics at bootup toward the end of the boot process. If I boot it in level 3 all the daemons start and it runs a little bit of script I have in rc.local to enable ACL's and then panics. The panic is something like panic occurred, switching back to text console. general protection fault: 0000 [#2] SMP last sysfs file: /sys/devices/virtual/block/dm-5/dm/name CPU 1 Modules linked in: "........list of modules......." Pid: 147, comm: plymouthd Tainted: G D ------------------- 2.6.32-358.6.2.el6.x86_64 #1 Gigabyte Technology Co., Ltd P43-ES3G/P43-ES3G There's a list of CPU registers and a call trace after that. I have a photo of the screen if that information is useful Any idea how I can trace this. Many thanks Ken -- Ken Smith K-Net Technology 020 8651 5722

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