[Kernel-packages] [Bug 1563970] Re: Clock issues on AMD Opteron(tm) Processor 6320
*** This bug is a duplicate of bug 1564949 *** https://bugs.launchpad.net/bugs/1564949 ** This bug has been marked a duplicate of bug 1564949 Severe latency/skew on AMD Opetron processor -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1563970 Title: Clock issues on AMD Opteron(tm) Processor 6320 Status in linux package in Ubuntu: Incomplete Bug description: In doing certification testing on an HP DL385p Gen8 server with an AMD Opteron(tm) Processor 6320 CPU, we've run into some clock issues, as illustrated by the following: $ for x in `seq 0 9`; do start=`date +"%s"`; sleep 60; stop=`date +"%s"`; echo "$stop - $start"|bc; done 65 62 60 60 60 61 60 60 60 61 This should produce a string of "60" values, and does on most systems; however, on the DL385p Gen8, the output shown above is quite irregular. (The test we use in the certification suite is more specialized and is not this exact test; the above is simply an easy- to-reproduce bash variant.) The system in question is "phelps" in OIL. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-15-generic 4.4.0-15.31 ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6 Uname: Linux 4.4.0-15-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Mar 29 14:43 seq crw-rw+ 1 root audio 116, 33 Mar 29 14:43 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20-0ubuntu3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: [Errno 2] No such file or directory: 'fuser' Date: Wed Mar 30 12:13:22 2016 HibernationDevice: RESUME=UUID=b6a44b05-ebe0-4d1c-a525-69d4748960f8 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: HP ProLiant DL385p Gen8 PciMultimedia: ProcEnviron: TERM=screen PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-15-generic root=UUID=96485ede-c1a8-407d-9960-f4cfa725ea89 ro rootdelay=60 RelatedPackageVersions: linux-restricted-modules-4.4.0-15-generic N/A linux-backports-modules-4.4.0-15-generic N/A linux-firmware1.157 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/06/2014 dmi.bios.vendor: HP dmi.bios.version: A28 dmi.chassis.type: 23 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrA28:bd02/06/2014:svnHP:pnProLiantDL385pGen8:pvr:cvnHP:ct23:cvr: dmi.product.name: ProLiant DL385p Gen8 dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1563970/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1563970] Re: Clock issues on AMD Opteron(tm) Processor 6320
Tried mainline too: ubuntu@oil-phelps:~$ ./clocktest Testing for clock jitter on 8 cpus PASSED: largest jitter seen was 0.000385 Testing clock direction for 5 minutes... FAILED: Iteration 0 delta: 3.654284 FAILED: Iteration 1 delta: 1.010557 FAILED: Iteration 2 delta: 0.734235 FAILED: Iteration 3 delta: 0.200061 FAILED: Iteration 4 delta: 0.229663 clock direction test: sleeptime 60 sec per iteration, failed iterations: 5 I wonder, however, if this is not signs of a failing CPU? cpuinfo says this is an Opteron 6320. I tried it on another system with an Opteron 6172 and it worked fine: ubuntu@bysen:~$ ./clocktest Testing for clock jitter on 24 cpus PASSED: largest jitter seen was 0.001858 Testing clock direction for 5 minutes... PASSED: Iteration 0 delta: 0.000109 PASSED: Iteration 1 delta: 0.000101 PASSED: Iteration 2 delta: 0.000100 PASSED: Iteration 3 delta: 0.000103 PASSED: Iteration 4 delta: 0.000101 clock direction test: sleeptime 60 sec per iteration, failed iterations: 0 Given that its limited to one system and regardless of kernel, I'm betting it's an actual hardware issue. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1563970 Title: Clock issues on AMD Opteron(tm) Processor 6320 Status in linux package in Ubuntu: Incomplete Bug description: In doing certification testing on an HP DL385p Gen8 server with an AMD Opteron(tm) Processor 6320 CPU, we've run into some clock issues, as illustrated by the following: $ for x in `seq 0 9`; do start=`date +"%s"`; sleep 60; stop=`date +"%s"`; echo "$stop - $start"|bc; done 65 62 60 60 60 61 60 60 60 61 This should produce a string of "60" values, and does on most systems; however, on the DL385p Gen8, the output shown above is quite irregular. (The test we use in the certification suite is more specialized and is not this exact test; the above is simply an easy- to-reproduce bash variant.) The system in question is "phelps" in OIL. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-15-generic 4.4.0-15.31 ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6 Uname: Linux 4.4.0-15-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Mar 29 14:43 seq crw-rw+ 1 root audio 116, 33 Mar 29 14:43 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20-0ubuntu3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: [Errno 2] No such file or directory: 'fuser' Date: Wed Mar 30 12:13:22 2016 HibernationDevice: RESUME=UUID=b6a44b05-ebe0-4d1c-a525-69d4748960f8 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: HP ProLiant DL385p Gen8 PciMultimedia: ProcEnviron: TERM=screen PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-15-generic root=UUID=96485ede-c1a8-407d-9960-f4cfa725ea89 ro rootdelay=60 RelatedPackageVersions: linux-restricted-modules-4.4.0-15-generic N/A linux-backports-modules-4.4.0-15-generic N/A linux-firmware1.157 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/06/2014 dmi.bios.vendor: HP dmi.bios.version: A28 dmi.chassis.type: 23 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrA28:bd02/06/2014:svnHP:pnProLiantDL385pGen8:pvr:cvnHP:ct23:cvr: dmi.product.name: ProLiant DL385p Gen8 dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1563970/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1563970] Re: Clock issues on AMD Opteron(tm) Processor 6320
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.6 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc1-wily/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Tags added: kernel-da-key -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1563970 Title: Clock issues on AMD Opteron(tm) Processor 6320 Status in linux package in Ubuntu: Incomplete Bug description: In doing certification testing on an HP DL385p Gen8 server with an AMD Opteron(tm) Processor 6320 CPU, we've run into some clock issues, as illustrated by the following: $ for x in `seq 0 9`; do start=`date +"%s"`; sleep 60; stop=`date +"%s"`; echo "$stop - $start"|bc; done 65 62 60 60 60 61 60 60 60 61 This should produce a string of "60" values, and does on most systems; however, on the DL385p Gen8, the output shown above is quite irregular. (The test we use in the certification suite is more specialized and is not this exact test; the above is simply an easy- to-reproduce bash variant.) The system in question is "phelps" in OIL. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-15-generic 4.4.0-15.31 ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6 Uname: Linux 4.4.0-15-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Mar 29 14:43 seq crw-rw+ 1 root audio 116, 33 Mar 29 14:43 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20-0ubuntu3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: [Errno 2] No such file or directory: 'fuser' Date: Wed Mar 30 12:13:22 2016 HibernationDevice: RESUME=UUID=b6a44b05-ebe0-4d1c-a525-69d4748960f8 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: HP ProLiant DL385p Gen8 PciMultimedia: ProcEnviron: TERM=screen PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-15-generic root=UUID=96485ede-c1a8-407d-9960-f4cfa725ea89 ro rootdelay=60 RelatedPackageVersions: linux-restricted-modules-4.4.0-15-generic N/A linux-backports-modules-4.4.0-15-generic N/A linux-firmware1.157 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/06/2014 dmi.bios.vendor: HP dmi.bios.version: A28 dmi.chassis.type: 23 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrA28:bd02/06/2014:svnHP:pnProLiantDL385pGen8:pvr:cvnHP:ct23:cvr: dmi.product.name: ProLiant DL385p Gen8 dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1563970/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1563970] Re: Clock issues on AMD Opteron(tm) Processor 6320
I've just reproduced the problem with 14.04 GA and a 3.13.0-24-generic kernel: $ for x in `seq 0 9`; do start=`date +"%s"`; sleep 60; stop=`date +"%s"`; echo "$stop - $start"|bc; done 63 60 60 60 61 60 60 60 60 61 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1563970 Title: Clock issues on AMD Opteron(tm) Processor 6320 Status in linux package in Ubuntu: Confirmed Bug description: In doing certification testing on an HP DL385p Gen8 server with an AMD Opteron(tm) Processor 6320 CPU, we've run into some clock issues, as illustrated by the following: $ for x in `seq 0 9`; do start=`date +"%s"`; sleep 60; stop=`date +"%s"`; echo "$stop - $start"|bc; done 65 62 60 60 60 61 60 60 60 61 This should produce a string of "60" values, and does on most systems; however, on the DL385p Gen8, the output shown above is quite irregular. (The test we use in the certification suite is more specialized and is not this exact test; the above is simply an easy- to-reproduce bash variant.) The system in question is "phelps" in OIL. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-15-generic 4.4.0-15.31 ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6 Uname: Linux 4.4.0-15-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Mar 29 14:43 seq crw-rw+ 1 root audio 116, 33 Mar 29 14:43 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20-0ubuntu3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: [Errno 2] No such file or directory: 'fuser' Date: Wed Mar 30 12:13:22 2016 HibernationDevice: RESUME=UUID=b6a44b05-ebe0-4d1c-a525-69d4748960f8 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: HP ProLiant DL385p Gen8 PciMultimedia: ProcEnviron: TERM=screen PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-15-generic root=UUID=96485ede-c1a8-407d-9960-f4cfa725ea89 ro rootdelay=60 RelatedPackageVersions: linux-restricted-modules-4.4.0-15-generic N/A linux-backports-modules-4.4.0-15-generic N/A linux-firmware1.157 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/06/2014 dmi.bios.vendor: HP dmi.bios.version: A28 dmi.chassis.type: 23 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrA28:bd02/06/2014:svnHP:pnProLiantDL385pGen8:pvr:cvnHP:ct23:cvr: dmi.product.name: ProLiant DL385p Gen8 dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1563970/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
