[Kernel-packages] [Bug 1592813] Re: System freezes if memory is full
I can confirm that the issue persists on kernel upstream too: renato@renato-laptop:~$ uname -a Linux renato-laptop 4.7.0-040700rc3-generic #201606121131 SMP Sun Jun 12 15:34:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed ** Tags added: kernel-bug-exists-upstream -- 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/1592813 Title: System freezes if memory is full Status in linux package in Ubuntu: Confirmed Bug description: If one or more process becames near of using 100% of system ram memory, Ubuntu will completely freeze. It is not possible even to switch to a VT to try to kill one or more procs. First I tought it could be some problem with swap and I tried to disable my swap partition, but didn't make a difference. Before using Ubuntu 14.04 64bit, I was using 8.04 32bits and this problem never happende with it. If the memory was near 100%, new apps would crash when trying to malloc, but the system would still be rock solid allowing me to close running apps to free memory. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-46-generic 3.13.0-46.79 ProcVersionSignature: Ubuntu 3.13.0-46.79-generic 3.13.11-ckt15 Uname: Linux 3.13.0-46-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.14.1-0ubuntu3.21 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: renato 2391 F pulseaudio CurrentDesktop: MATE Date: Wed Jun 15 09:52:27 2016 HibernationDevice: RESUME=UUID=4f544f74-0b59-4895-959b-9a2e60ce4485 InstallationDate: Installed on 2015-03-10 (462 days ago) InstallationMedia: Ubuntu MATE 14.04.1 "Trusty Tahr" - final amd64 (2014) MachineType: ASUSTeK Computer Inc. M51Sn ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-46-generic root=UUID=818b643f-29ae-4599-8039-470975a54543 ro biosdevname=0 quiet splash RelatedPackageVersions: linux-restricted-modules-3.13.0-46-generic N/A linux-backports-modules-3.13.0-46-generic N/A linux-firmware 1.127.22 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/04/2008 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 305 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: M51Sn dmi.board.vendor: ASUSTeK Computer Inc. dmi.board.version: 1.0 dmi.chassis.asset.tag: ATN12345678901234567 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK Computer Inc. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr305:bd05/04/2008:svnASUSTeKComputerInc.:pnM51Sn:pvr1.0:rvnASUSTeKComputerInc.:rnM51Sn:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0: dmi.product.name: M51Sn dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK Computer Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1592813/+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 159356] Re: System freeze on high memory usage
I have the same problem. Currently I'm using Ubuntu 14.04 64bits. I have 4GB of RAM and no swap. If I open too many apps and memory usage goes to 100%, the system completely freezes. Before 14.04, I was using 8.04 32bits and this problem never happend. If all the memory was used, new apps would just crash when trying to malloc but the system will still remain solid stable. My system is: Intel Core 2 Duo, 4GB RAM, nVidia GPU and Ubuntu 14.04.4 LTS Tried already to increase /proc/sys/vm/min_free_kbytes to 270336, but the problem persists. -- 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/159356 Title: System freeze on high memory usage Status in linux package in Ubuntu: Incomplete Bug description: I run a batch matlab job server here at my lab, running Dapper 6.06 (for the LTS). One of the users has submitted a very memory-consuming job, which successfully crashes the server. Upon closer inspection, the crash happens like this: 1. I run matlab with the given file (as an ordinary, unpriveleged user) 2. RAM usage quickly fills up 3. Once the RAM meter hits 100%, the system freezes: All SSH connections freeze up, and while switching VTs directly on the machine works, no new processes run - so one can't log in, or do anything if he is logged in. (Sometimes typing doesn't work at all) Note that the swap - while 7 gigs of it are available - is never used. (The machine has 7 gigs of RAM as well) I've tried the same on my Gutsy 32-bit box, and there was no system freezeup - matlab simply notified that the system was out of memory. However, it did this once memory was 100% in use - and still, swap didn't get used at all! (Though it is mounted correctly and shows up in "top" and "free"). So first thing's first - I'd like to eliminate the crash issue. I suppose I could switch the server to 32-bit, but I think that would be a performance loss, considering that it does a lot of heavy computation. There is no reason, however, that this should happen on a 64-bit machine anyway. Why does it? WORKAROUND: Enabling DMA in the BIOS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/159356/+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 1592813] [NEW] System freezes if memory is full
Public bug reported: If one or more process becames near of using 100% of system ram memory, Ubuntu will completely freeze. It is not possible even to switch to a VT to try to kill one or more procs. First I tought it could be some problem with swap and I tried to disable my swap partition, but didn't make a difference. Before using Ubuntu 14.04 64bit, I was using 8.04 32bits and this problem never happende with it. If the memory was near 100%, new apps would crash when trying to malloc, but the system would still be rock solid allowing me to close running apps to free memory. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-46-generic 3.13.0-46.79 ProcVersionSignature: Ubuntu 3.13.0-46.79-generic 3.13.11-ckt15 Uname: Linux 3.13.0-46-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.14.1-0ubuntu3.21 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: renato 2391 F pulseaudio CurrentDesktop: MATE Date: Wed Jun 15 09:52:27 2016 HibernationDevice: RESUME=UUID=4f544f74-0b59-4895-959b-9a2e60ce4485 InstallationDate: Installed on 2015-03-10 (462 days ago) InstallationMedia: Ubuntu MATE 14.04.1 "Trusty Tahr" - final amd64 (2014) MachineType: ASUSTeK Computer Inc. M51Sn ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-46-generic root=UUID=818b643f-29ae-4599-8039-470975a54543 ro biosdevname=0 quiet splash RelatedPackageVersions: linux-restricted-modules-3.13.0-46-generic N/A linux-backports-modules-3.13.0-46-generic N/A linux-firmware 1.127.22 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/04/2008 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 305 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: M51Sn dmi.board.vendor: ASUSTeK Computer Inc. dmi.board.version: 1.0 dmi.chassis.asset.tag: ATN12345678901234567 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK Computer Inc. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr305:bd05/04/2008:svnASUSTeKComputerInc.:pnM51Sn:pvr1.0:rvnASUSTeKComputerInc.:rnM51Sn:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0: dmi.product.name: M51Sn dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK Computer Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: amd64 apport-bug trusty -- 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/1592813 Title: System freezes if memory is full Status in linux package in Ubuntu: Confirmed Bug description: If one or more process becames near of using 100% of system ram memory, Ubuntu will completely freeze. It is not possible even to switch to a VT to try to kill one or more procs. First I tought it could be some problem with swap and I tried to disable my swap partition, but didn't make a difference. Before using Ubuntu 14.04 64bit, I was using 8.04 32bits and this problem never happende with it. If the memory was near 100%, new apps would crash when trying to malloc, but the system would still be rock solid allowing me to close running apps to free memory. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-46-generic 3.13.0-46.79 ProcVersionSignature: Ubuntu 3.13.0-46.79-generic 3.13.11-ckt15 Uname: Linux 3.13.0-46-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.14.1-0ubuntu3.21 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: renato 2391 F pulseaudio CurrentDesktop: MATE Date: Wed Jun 15 09:52:27 2016 HibernationDevice: RESUME=UUID=4f544f74-0b59-4895-959b-9a2e60ce4485 InstallationDate: Installed on 2015-03-10 (462 days ago) InstallationMedia: Ubuntu MATE 14.04.1 "Trusty Tahr" - final amd64 (2014) MachineType: ASUSTeK Computer Inc. M51Sn ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-46-generic root=UUID=818b643f-29ae-4599-8039-470975a54543 ro biosdevname=0 quiet splash RelatedPackageVersions: linux-restricted-modules-3.13.0-46-generic N/A linux-backports-modules-3.13.0-46-generic N/A linux-firmware 1.127.22 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/04/2008 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 305 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: M51Sn dmi.board.vendor: ASUSTeK Computer Inc. dmi.board.version: 1.0 dmi.chassis.asset.tag: ATN12345678901234567 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK Computer Inc. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr305:bd05/04/2008:svnASUSTeKComputerInc.:pnM51Sn:pvr1.0:rvnASUSTeKComputerInc.:rnM51Sn:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0: dmi.product.name: M51Sn