Discuss November 2016

discuss@lists.centos.org

125 participants
96 discussions

CentOS 6.8 and samba
by isdtor 23 May '17

23 May '17

Other than the original 6.8 release version 3.6.23-33, samba has not been functioning correctly for me under 6.8. The symptoms are that about 6-7 days after starting the server, users start complaining that they can no longer open documents on their share. Upon inspection, I find several, sometimes nearly a dozen smb processes owned by a single user, on top of those run under root. Stopping the service does not stop these processes. They are only killable with SIGKILL, and after that, a service restart does not result in a functioning service, i.e. connections are refused, which can be verified easily with smbclient. The only cure is a server reboot. And it is not the same user id every time it happens. Useful logs of any type are not available. I have tested -35 and -36, both show the same behaviour. This is a production server and I have no time for tinkering; downgrading to -33 and blocking samba updates is the only workaround for now.

6 12

howto install yumex
by geo.inbox.ignored 07 Apr '17

07 Apr '17

greetings. trying to install yumex, but obviously have forgotten what i did previously to install packages. sudo yum install yumex* errors out with; No package yumex* available. please inform my chemo brain what is correct. tia. -- peace out. CentOS GNU/Linux 7.1511 tc,hago. g . =+= Tired of having your microsoft os hacked? Change to Linux os, used by microsoft hackers. =+= in a world with out fences, who needs gates. =+=

7 16

How to enable the svm cpu flag inside a vm?
by Leonard den Ottolander 03 Apr '17

03 Apr '17

Hello, I'm trying to get the Android Emulator to run inside a kvm vm on CentOS-6. Apparently the latest Android Emulators cannot run without hardware acceleration so I am trying to get the vm to see the svm cpu flag. Host: $ grep model\ name /proc/cpuinfo | sort -u model name : AMD Phenom(tm) II X4 965 Processor $ grep svm /proc/cpuinfo | sort -u flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt npt lbrv svm_lock nrip_save $ cat /sys/module/kvm_amd/parameters/nested 1 I have tried copying the cpu options (Opteron_G3) in the host cpu configuration and setting the svm flag to either "model", "required" or "force" to no avail: $ ps waux | grep qemu qemu 7962 7.2 21.9 3722092 2680668 ? Rl 13:23 6:36 /usr/libexec/qemu-kvm -name C7-Android -S -M rhel6.6.0 -cpu Opteron_G3,+invtsc,+wdt,+skinit,+ibs,+osvw,+3dnowprefetch,+cr8legacy, +extapic,+cmp_legacy,+3dnow,+3dnowext,+pdpe1gb,+fxsr_opt,+mmxext,+ht, +vme -enable-kvm -m 3072 -realtime mlock=off -smp <snip> So the question is: How do I enable the svm flag in the guest? Regards, Leonard. -- mount -t life -o ro /dev/dna /genetic/research

4 7

I want to connect to a l2tp server from centos.
by Eliezer Croitoru 22 Mar '17

22 Mar '17

I have a server currently connecting to a pptp remote server. This server(lns\lac) has the option for pptp connections and l2tp connections. The l2tp connections are not using ipsec encryption at all. I have seen couple guides\tutorials on the internet: - https://raymii.org/s/tutorials/IPSEC_L2TP_vpn_on_CentOS_-_Red_Hat_Enterpris… - https://wiki.archlinux.org/index.php/L2TP/IPsec_VPN_client_setup But all the guides that I have found are using ipsec with "secret". On ubuntu there is a gui applet that helps setting these kind of connections up but I am working with a CentOS server and not Ubuntu desktop. If someone used l2tp the same way I want to use on CentOS 7 please give me some advice. If you have a guide which might help me I will be more then happy to see this one. Thanks, Eliezer

4 8

An 'orrible question: Outlook 365 under wine on CentOS?
by m.roth＠5-cent.us 21 Mar '17

21 Mar '17

Either CentOS 6 or 7 - anyone know if it's possible? Upper Management has decided on a policy that IMAP is going to go away in the near future, and they want everyone on Lookout, sorry, Outlook 365. mark, VMNH* * Very Much Not Happy

14 22

Avago (LSI) SAS-3 controller, poor performance on CentOS 7
by Gordon Messmer 18 Jan '17

18 Jan '17

I have a handful of new systems where I've seen unexpectedly low disk performance on an Avago SAS controller, when using CentOS 7. It looked like a regression, so I installed CentOS 6 on one of them and reloaded CentOS 7 on the other. Immediately after install, a difference is apparent in the RAID rebuild speed. The CentOS 6 system is initializing its software RAID5 array at somewhere around 120MB/s, while the CentOS 7 system is rebuilding at around 55MB/s. It took a while to get an older system installed, and I wasn't able to boot CentOS 6 under UEFI, to that's one difference between the systems. I also set the elevator on CentOS 7 to cfq, to match the CentOS 6 system. That didn't have any apparent effect. Other than that, the kernel reports "MSI-X vectors supported: 96" on C6, but "MSI-X vectors supported: 8" on C7. I don't know if that's a difference that would affect performance. Does anyone have experience with these controllers? Any pointers while I continue tracking this down? Output from lspci follows, as well as dmesg output regarding the MPT controller and the RAID array status on C6 and C7. 01:00.0 Serial Attached SCSI controller: LSI Logic / Symbios Logic SAS3008 PCI-Express Fusion-MPT SAS-3 (rev 02) Subsystem: LSI Logic / Symbios Logic Device 30e0 Physical Slot: 1 Flags: bus master, fast devsel, latency 0, IRQ 24 I/O ports at e000 [size=256] Memory at fb240000 (64-bit, non-prefetchable) [size=64K] Memory at fb200000 (64-bit, non-prefetchable) [size=256K] Expansion ROM at fb100000 [disabled] [size=1M] Capabilities: [50] Power Management version 3 Capabilities: [68] Express Endpoint, MSI 00 Capabilities: [d0] Vital Product Data Capabilities: [a8] MSI: Enable- Count=1/1 Maskable+ 64bit+ Capabilities: [c0] MSI-X: Enable+ Count=96 Masked- Capabilities: [100] Advanced Error Reporting Capabilities: [1e0] #19 Capabilities: [1c0] Power Budgeting <?> Capabilities: [190] #16 Capabilities: [148] Alternative Routing-ID Interpretation (ARI) Kernel driver in use: mpt3sas CentOS 6: # dmesg | grep -i mpt mpt3sas version 09.102.00.00-rh loaded mpt3sas 0000:01:00.0: PCI INT A -> GSI 26 (level, low) -> IRQ 26 mpt3sas 0000:01:00.0: setting latency timer to 64 mpt3sas_cm0: 64 BIT PCI BUS DMA ADDRESSING SUPPORTED, total mem (32772632 kB) mpt3sas_cm0: MSI-X vectors supported: 96, no of cores: 12, max_msix_vectors: -1 mpt3sas 0000:01:00.0: irq 60 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 61 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 62 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 63 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 64 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 65 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 66 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 67 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 68 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 69 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 70 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 71 for MSI/MSI-X mpt3sas0-msix0: PCI-MSI-X enabled: IRQ 60 mpt3sas0-msix1: PCI-MSI-X enabled: IRQ 61 mpt3sas0-msix2: PCI-MSI-X enabled: IRQ 62 mpt3sas0-msix3: PCI-MSI-X enabled: IRQ 63 mpt3sas0-msix4: PCI-MSI-X enabled: IRQ 64 mpt3sas0-msix5: PCI-MSI-X enabled: IRQ 65 mpt3sas0-msix6: PCI-MSI-X enabled: IRQ 66 mpt3sas0-msix7: PCI-MSI-X enabled: IRQ 67 mpt3sas0-msix8: PCI-MSI-X enabled: IRQ 68 mpt3sas0-msix9: PCI-MSI-X enabled: IRQ 69 mpt3sas0-msix10: PCI-MSI-X enabled: IRQ 70 mpt3sas0-msix11: PCI-MSI-X enabled: IRQ 71 mpt3sas_cm0: iomem(0x00000000fb240000), mapped(0xffffc90013ee0000), size(65536) mpt3sas_cm0: ioport(0x000000000000e000), size(256) mpt3sas_cm0: sending message unit reset !! mpt3sas_cm0: message unit reset: SUCCESS mpt3sas_cm0: Allocated physical memory: size(17971 kB) mpt3sas_cm0: Current Controller Queue Depth(9979),Max Controller Queue Depth(10240) mpt3sas_cm0: Scatter Gather Elements per IO(128) mpt3sas_cm0: LSISAS3008: FWVersion(10.00.00.00), ChipRevision(0x02), BiosVersion(08.25.00.00) mpt3sas_cm0: Protocol=( scsi0 : Fusion MPT SAS Host mpt3sas_cm0: sending port enable !! mpt3sas_cm0: host_add: handle(0x0001), sas_addr(0x500605b00aee5510), phys(8) mpt3sas_cm0: port enable: SUCCESS # cat /proc/mdstat Personalities : [raid6] [raid5] [raid4] [raid1] md0 : active raid1 sda2[0] sdb2[1] 999360 blocks super 1.0 [2/2] [UU] md1 : active raid5 sdf3[6] sde3[4] sdd3[3] sdc3[2] sda3[0] sdb3[1] 19528458240 blocks super 1.2 level 5, 64k chunk, algorithm 2 [6/5] [UUUUU_] [====>................] recovery = 22.1% (864374932/3905691648) finish=417.0min speed=121538K/sec bitmap: 1/30 pages [4KB], 65536KB chunk unused devices: <none> CentOS 7: # dmesg | grep -i mpt mpt3sas version 04.100.00.00 loaded mpt3sas0: 64 BIT PCI BUS DMA ADDRESSING SUPPORTED, total mem (32674176 kB) mpt3sas0: MSI-X vectors supported: 8, no of cores: 12, max_msix_vectors: 8 mpt3sas 0000:01:00.0: irq 45 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 46 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 47 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 49 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 50 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 51 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 52 for MSI/MSI-X mpt3sas 0000:01:00.0: irq 53 for MSI/MSI-X mpt3sas0-msix0: PCI-MSI-X enabled: IRQ 45 mpt3sas0-msix1: PCI-MSI-X enabled: IRQ 46 mpt3sas0-msix2: PCI-MSI-X enabled: IRQ 47 mpt3sas0-msix3: PCI-MSI-X enabled: IRQ 49 mpt3sas0-msix4: PCI-MSI-X enabled: IRQ 50 mpt3sas0-msix5: PCI-MSI-X enabled: IRQ 51 mpt3sas0-msix6: PCI-MSI-X enabled: IRQ 52 mpt3sas0-msix7: PCI-MSI-X enabled: IRQ 53 mpt3sas0: iomem(0x00000000fb240000), mapped(0xffffc90013180000), size(65536) mpt3sas0: ioport(0x000000000000e000), size(256) mpt3sas0: sending message unit reset !! mpt3sas0: message unit reset: SUCCESS mpt3sas0: Allocated physical memory: size(17329 kB) mpt3sas0: Current Controller Queue Depth(9979),Max Controller Queue Depth(10240) mpt3sas0: Scatter Gather Elements per IO(128) mpt3sas0: LSISAS3008: FWVersion(10.00.00.00), ChipRevision(0x02), BiosVersion(08.25.00.00) mpt3sas0: Protocol=( scsi host0: Fusion MPT SAS Host mpt3sas0: sending port enable !! mpt3sas0: host_add: handle(0x0001), sas_addr(0x500605b00aee5ca0), phys(8) mpt3sas0: port enable: SUCCESS # cat /proc/mdstat Personalities : [raid1] [raid6] [raid5] [raid4] md125 : active raid1 sda1[0] sdb1[1] 194496 blocks super 1.0 [2/2] [UU] md126 : active raid5 sdf3[6] sda3[0] sde3[4] sdd3[3] sdc3[2] sdb3[1] 19528458240 blocks super 1.2 level 5, 64k chunk, algorithm 2 [6/5] [UUUUU_] [=========>...........] recovery = 47.6% (1862704880/3905691648) finish=569.6min speed=59772K/sec bitmap: 2/30 pages [8KB], 65536KB chunk md127 : active raid1 sda2[0] sdb2[1] 999360 blocks super 1.0 [2/2] [UU] unused devices: <none>

3 5

New laptop recomendation
by Tony Molloy 24 Dec '16

24 Dec '16

Hi, I'm recently retired from my university job. I am looking for a laptop to run CentOS 6/7. My university was a traditional Dell site so I've used Latitude laptops for years, currently E6500/E6510. Anybody got any experience of running CentOS on the newer Dell Latitudes E5000 or E7000. These are not certified according to Redhats' Hardware Guide. Alternatively Precision Workstations would do. These can be supplied with Ubuntu installed so they run Linux. Thanks, Tony -- Linux nogs.tonyshome.ie 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

13 28

SCL devtoolset-3 or 4 without eclipse?
by Robert Arkiletian 05 Dec '16

05 Dec '16

Is there a way to install devtoolset packages without the bloat of eclipse? I just want the new compiler and toolchain, not a big IDE. BTW devtoolset-3 dependencies are broken in yum with C6 yum install devtoolset-3 ... ---> Package devtoolset-3-perftools.x86_64 0:3.1-12.el6 will be installed --> Processing Dependency: devtoolset-3-dyninst for package: devtoolset-3-perftools-3.1-12.el6.x86_64 --> Finished Dependency Resolution Error: Package: 1:devtoolset-3-eclipse-platform-4.4.2-4.bootstrap2.el6.x86_64 (centos-sclo-rh) Requires: devtoolset-3-eclipse-emf-core >= 1:2.10.2-2 Error: Package: devtoolset-3-ide-3.1-12.el6.x86_64 (centos-sclo-rh) Requires: devtoolset-3-eclipse-emf Error: Package: devtoolset-3-ide-3.1-12.el6.x86_64 (centos-sclo-rh) Requires: devtoolset-3-eclipse-emf-sdk Error: Package: devtoolset-3-perftools-3.1-12.el6.x86_64 (centos-sclo-rh) Requires: devtoolset-3-dyninst Error: Package: devtoolset-3-ide-3.1-12.el6.x86_64 (centos-sclo-rh) Requires: devtoolset-3-eclipse-emf-examples Error: Package: 1:devtoolset-3-eclipse-platform-4.4.2-4.bootstrap2.el6.x86_64 (centos-sclo-rh) Requires: devtoolset-3-eclipse-ecf-core >= 3.9.1-2.5 Error: Package: devtoolset-3-ide-3.1-12.el6.x86_64 (centos-sclo-rh) Requires: devtoolset-3-eclipse-emf-core Error: Package: devtoolset-3-eclipse-mylyn-builds-3.14.2-1.bootstrap1.el6.noarch (centos-sclo-rh) Requires: devtoolset-3-eclipse-emf You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest

3 3

Recent updates for CentOS7?
by Robbert Eggermont 01 Dec '16

01 Dec '16

Hi, I noticed there have not been any new updates for CentOS 7 for four weeks now (at least not under http://mirror.centos.org/centos/7/updates/x86_64/). For Centos 6 updates have been released more recently (i.e. the Firefox-45.5.0 update). I was not able to find any information about this "pause". Is this planned, and when will new updates be released? Thanks! -- Robbert Eggermont Intelligent Systems R.Eggermont(a)tudelft.nl Electr.Eng., Mathematics & Comp.Science +31 15 27 83234 Delft University of Technology

5 7

Re: [CentOS] Multi Stream Transport
by Mark Woolfson (Notebook) 30 Nov '16

30 Nov '16

Hello, Can you please help. Which versions of Centos 6 and 7 support Multi Stream Transport (MST) on DisplayPort graphics. Regards, Mark Woolfson MW Consultancy Ltd Leeds LS18 4LY West Yorkshire United Kingdom Tel: +44 113 259 1204 Mob: +44 786 065 2778 Em: julie(a)mwcltd.co.uk (Commercial) Em: mrw(a)mwcltd.co.uk (Technical) Web: www.mwcltd.co.uk

2 1

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Discuss November 2016