[Kernel-packages] [Bug 1706247] Re: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV
** Changed in: linux (Ubuntu Artful) Status: Incomplete => In Progress ** Changed in: linux (Ubuntu Zesty) Status: Incomplete => In Progress ** Changed in: linux (Ubuntu Xenial) Status: Incomplete => In Progress ** Changed in: linux (Ubuntu) Status: Incomplete => In Progress -- 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/1706247 Title: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV Status in The Ubuntu-power-systems project: Incomplete Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: In Progress Status in linux source package in Zesty: In Progress Status in linux source package in Artful: In Progress Bug description: 16G Huge Pages are not supported on PowerNV (bare metal) installations. Ubuntu 16.04.2 still allows 16G huge pages to be turned on. Contact Information = Mike Hollinger (mchol...@us.ibm.com) ---uname output--- Linux aprilmin4 4.4.0-83-generic #106-Ubuntu SMP Mon Jun 26 17:53:54 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = 8335-GTB ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1. Add the following to the kernel boot args (either via editing the petitboot boot option manually, or updating /boot/grub/grub.cfg: default_hugepagesz=16G hugepagesz=16G hugepages=4 2. Boot Linux 3. Observe that the kernel believes 16G huge pages are available: ubuntu@aprilmin7:~$ cat /proc/meminfo | grep -i huge AnonHugePages:475136 kB HugePages_Total: 0 HugePages_Free:0 HugePages_Rsvd:0 HugePages_Surp:0 Hugepagesize: 16777216 kB ubuntu@aprilmin7:~$ ls /sys/devices/system/node/node0/hugepages hugepages-1024kB hugepages-16384kB hugepages-16777216kB Stack trace output: no Oops output: no System Dump Info: The system is not configured to capture a system dump. *Additional Instructions for Mike Hollinger (mchol...@us.ibm.com): -Post a private note with access information to the machine that the bug is occuring on. -Attach sysctl -a output output to the bug. This may be recreated on any bare metal POWER8 server with Ubuntu 16.04.2; I haven't checked other versions of Ubuntu. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1706247/+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 1706247] Re: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV
** Changed in: ubuntu-power-systems Status: In Progress => Incomplete -- 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/1706247 Title: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV Status in The Ubuntu-power-systems project: Incomplete Status in linux package in Ubuntu: Incomplete Status in linux source package in Xenial: Incomplete Status in linux source package in Zesty: Incomplete Status in linux source package in Artful: Incomplete Bug description: 16G Huge Pages are not supported on PowerNV (bare metal) installations. Ubuntu 16.04.2 still allows 16G huge pages to be turned on. Contact Information = Mike Hollinger (mchol...@us.ibm.com) ---uname output--- Linux aprilmin4 4.4.0-83-generic #106-Ubuntu SMP Mon Jun 26 17:53:54 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = 8335-GTB ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1. Add the following to the kernel boot args (either via editing the petitboot boot option manually, or updating /boot/grub/grub.cfg: default_hugepagesz=16G hugepagesz=16G hugepages=4 2. Boot Linux 3. Observe that the kernel believes 16G huge pages are available: ubuntu@aprilmin7:~$ cat /proc/meminfo | grep -i huge AnonHugePages:475136 kB HugePages_Total: 0 HugePages_Free:0 HugePages_Rsvd:0 HugePages_Surp:0 Hugepagesize: 16777216 kB ubuntu@aprilmin7:~$ ls /sys/devices/system/node/node0/hugepages hugepages-1024kB hugepages-16384kB hugepages-16777216kB Stack trace output: no Oops output: no System Dump Info: The system is not configured to capture a system dump. *Additional Instructions for Mike Hollinger (mchol...@us.ibm.com): -Post a private note with access information to the machine that the bug is occuring on. -Attach sysctl -a output output to the bug. This may be recreated on any bare metal POWER8 server with Ubuntu 16.04.2; I haven't checked other versions of Ubuntu. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1706247/+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 1706247] Re: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV
** Changed in: linux (Ubuntu) Status: In Progress => Incomplete ** Changed in: linux (Ubuntu Xenial) Status: In Progress => Incomplete ** Changed in: linux (Ubuntu Zesty) Status: In Progress => Incomplete ** Changed in: linux (Ubuntu Artful) Status: In Progress => Incomplete -- 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/1706247 Title: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV Status in The Ubuntu-power-systems project: In Progress Status in linux package in Ubuntu: Incomplete Status in linux source package in Xenial: Incomplete Status in linux source package in Zesty: Incomplete Status in linux source package in Artful: Incomplete Bug description: 16G Huge Pages are not supported on PowerNV (bare metal) installations. Ubuntu 16.04.2 still allows 16G huge pages to be turned on. Contact Information = Mike Hollinger (mchol...@us.ibm.com) ---uname output--- Linux aprilmin4 4.4.0-83-generic #106-Ubuntu SMP Mon Jun 26 17:53:54 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = 8335-GTB ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1. Add the following to the kernel boot args (either via editing the petitboot boot option manually, or updating /boot/grub/grub.cfg: default_hugepagesz=16G hugepagesz=16G hugepages=4 2. Boot Linux 3. Observe that the kernel believes 16G huge pages are available: ubuntu@aprilmin7:~$ cat /proc/meminfo | grep -i huge AnonHugePages:475136 kB HugePages_Total: 0 HugePages_Free:0 HugePages_Rsvd:0 HugePages_Surp:0 Hugepagesize: 16777216 kB ubuntu@aprilmin7:~$ ls /sys/devices/system/node/node0/hugepages hugepages-1024kB hugepages-16384kB hugepages-16777216kB Stack trace output: no Oops output: no System Dump Info: The system is not configured to capture a system dump. *Additional Instructions for Mike Hollinger (mchol...@us.ibm.com): -Post a private note with access information to the machine that the bug is occuring on. -Attach sysctl -a output output to the bug. This may be recreated on any bare metal POWER8 server with Ubuntu 16.04.2; I haven't checked other versions of Ubuntu. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1706247/+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 1706247] Re: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV
I built an Artful test kernel(17.10) with the following three commits: 4ae279c2 powerpc/mm/hugetlb: Allow runtime allocation of 16G. 79cc38de powerpc/mm/hugetlb: Add support for reserving gigantic huge pages via kernel command line e24a1307 mm/hugetlb: Allow arch to override and call the weak function Commits e1073d1e7 and 40692eb5 were not needed since there are already in Artful/4.13. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1706247/artful Can you test this kernel and see if it resolves this bug? I will work on building Zesty and Xenial test kernels next. They required those two extra commits and they need some back porting. -- 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/1706247 Title: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV Status in The Ubuntu-power-systems project: In Progress Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: In Progress Status in linux source package in Zesty: In Progress Status in linux source package in Artful: In Progress Bug description: 16G Huge Pages are not supported on PowerNV (bare metal) installations. Ubuntu 16.04.2 still allows 16G huge pages to be turned on. Contact Information = Mike Hollinger (mchol...@us.ibm.com) ---uname output--- Linux aprilmin4 4.4.0-83-generic #106-Ubuntu SMP Mon Jun 26 17:53:54 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = 8335-GTB ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1. Add the following to the kernel boot args (either via editing the petitboot boot option manually, or updating /boot/grub/grub.cfg: default_hugepagesz=16G hugepagesz=16G hugepages=4 2. Boot Linux 3. Observe that the kernel believes 16G huge pages are available: ubuntu@aprilmin7:~$ cat /proc/meminfo | grep -i huge AnonHugePages:475136 kB HugePages_Total: 0 HugePages_Free:0 HugePages_Rsvd:0 HugePages_Surp:0 Hugepagesize: 16777216 kB ubuntu@aprilmin7:~$ ls /sys/devices/system/node/node0/hugepages hugepages-1024kB hugepages-16384kB hugepages-16777216kB Stack trace output: no Oops output: no System Dump Info: The system is not configured to capture a system dump. *Additional Instructions for Mike Hollinger (mchol...@us.ibm.com): -Post a private note with access information to the machine that the bug is occuring on. -Attach sysctl -a output output to the bug. This may be recreated on any bare metal POWER8 server with Ubuntu 16.04.2; I haven't checked other versions of Ubuntu. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1706247/+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 1706247] Re: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV
** Changed in: ubuntu-power-systems Status: Triaged => In Progress -- 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/1706247 Title: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV Status in The Ubuntu-power-systems project: In Progress Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: In Progress Status in linux source package in Zesty: In Progress Status in linux source package in Artful: In Progress Bug description: 16G Huge Pages are not supported on PowerNV (bare metal) installations. Ubuntu 16.04.2 still allows 16G huge pages to be turned on. Contact Information = Mike Hollinger (mchol...@us.ibm.com) ---uname output--- Linux aprilmin4 4.4.0-83-generic #106-Ubuntu SMP Mon Jun 26 17:53:54 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = 8335-GTB ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1. Add the following to the kernel boot args (either via editing the petitboot boot option manually, or updating /boot/grub/grub.cfg: default_hugepagesz=16G hugepagesz=16G hugepages=4 2. Boot Linux 3. Observe that the kernel believes 16G huge pages are available: ubuntu@aprilmin7:~$ cat /proc/meminfo | grep -i huge AnonHugePages:475136 kB HugePages_Total: 0 HugePages_Free:0 HugePages_Rsvd:0 HugePages_Surp:0 Hugepagesize: 16777216 kB ubuntu@aprilmin7:~$ ls /sys/devices/system/node/node0/hugepages hugepages-1024kB hugepages-16384kB hugepages-16777216kB Stack trace output: no Oops output: no System Dump Info: The system is not configured to capture a system dump. *Additional Instructions for Mike Hollinger (mchol...@us.ibm.com): -Post a private note with access information to the machine that the bug is occuring on. -Attach sysctl -a output output to the bug. This may be recreated on any bare metal POWER8 server with Ubuntu 16.04.2; I haven't checked other versions of Ubuntu. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1706247/+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 1706247] Re: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV
I built X, Z and A test kernels with commit 4ae279c2c96ab38a78b954d218790a8f6db714e5. The test kernels can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1706247/ Can you test these kernels and see if they resolve this bug? ** Changed in: linux (Ubuntu) Status: Triaged => In Progress ** Changed in: linux (Ubuntu) Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) => Joseph Salisbury (jsalisbury) ** Also affects: linux (Ubuntu Xenial) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Artful) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Zesty) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Xenial) Status: New => In Progress ** Changed in: linux (Ubuntu Zesty) Status: New => In Progress ** Changed in: linux (Ubuntu Artful) Status: New => In Progress ** Changed in: linux (Ubuntu Xenial) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Zesty) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Artful) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Xenial) Assignee: (unassigned) => Joseph Salisbury (jsalisbury) ** Changed in: linux (Ubuntu Zesty) Assignee: (unassigned) => Joseph Salisbury (jsalisbury) ** Changed in: linux (Ubuntu Artful) Assignee: (unassigned) => Joseph Salisbury (jsalisbury) -- 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/1706247 Title: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV Status in The Ubuntu-power-systems project: Triaged Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: In Progress Status in linux source package in Zesty: In Progress Status in linux source package in Artful: In Progress Bug description: 16G Huge Pages are not supported on PowerNV (bare metal) installations. Ubuntu 16.04.2 still allows 16G huge pages to be turned on. Contact Information = Mike Hollinger (mchol...@us.ibm.com) ---uname output--- Linux aprilmin4 4.4.0-83-generic #106-Ubuntu SMP Mon Jun 26 17:53:54 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = 8335-GTB ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1. Add the following to the kernel boot args (either via editing the petitboot boot option manually, or updating /boot/grub/grub.cfg: default_hugepagesz=16G hugepagesz=16G hugepages=4 2. Boot Linux 3. Observe that the kernel believes 16G huge pages are available: ubuntu@aprilmin7:~$ cat /proc/meminfo | grep -i huge AnonHugePages:475136 kB HugePages_Total: 0 HugePages_Free:0 HugePages_Rsvd:0 HugePages_Surp:0 Hugepagesize: 16777216 kB ubuntu@aprilmin7:~$ ls /sys/devices/system/node/node0/hugepages hugepages-1024kB hugepages-16384kB hugepages-16777216kB Stack trace output: no Oops output: no System Dump Info: The system is not configured to capture a system dump. *Additional Instructions for Mike Hollinger (mchol...@us.ibm.com): -Post a private note with access information to the machine that the bug is occuring on. -Attach sysctl -a output output to the bug. This may be recreated on any bare metal POWER8 server with Ubuntu 16.04.2; I haven't checked other versions of Ubuntu. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1706247/+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 1706247] Re: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV
Do you happen to know if there is a boot or sysctl option that can be used to disable 16G Huge Pages? -- 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/1706247 Title: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV Status in The Ubuntu-power-systems project: Triaged Status in linux package in Ubuntu: Triaged Bug description: 16G Huge Pages are not supported on PowerNV (bare metal) installations. Ubuntu 16.04.2 still allows 16G huge pages to be turned on. Contact Information = Mike Hollinger (mchol...@us.ibm.com) ---uname output--- Linux aprilmin4 4.4.0-83-generic #106-Ubuntu SMP Mon Jun 26 17:53:54 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = 8335-GTB ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1. Add the following to the kernel boot args (either via editing the petitboot boot option manually, or updating /boot/grub/grub.cfg: default_hugepagesz=16G hugepagesz=16G hugepages=4 2. Boot Linux 3. Observe that the kernel believes 16G huge pages are available: ubuntu@aprilmin7:~$ cat /proc/meminfo | grep -i huge AnonHugePages:475136 kB HugePages_Total: 0 HugePages_Free:0 HugePages_Rsvd:0 HugePages_Surp:0 Hugepagesize: 16777216 kB ubuntu@aprilmin7:~$ ls /sys/devices/system/node/node0/hugepages hugepages-1024kB hugepages-16384kB hugepages-16777216kB Stack trace output: no Oops output: no System Dump Info: The system is not configured to capture a system dump. *Additional Instructions for Mike Hollinger (mchol...@us.ibm.com): -Post a private note with access information to the machine that the bug is occuring on. -Attach sysctl -a output output to the bug. This may be recreated on any bare metal POWER8 server with Ubuntu 16.04.2; I haven't checked other versions of Ubuntu. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1706247/+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 1706247] Re: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV
** Tags removed: kernel-key ** 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/1706247 Title: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV Status in The Ubuntu-power-systems project: Triaged Status in linux package in Ubuntu: Triaged Bug description: 16G Huge Pages are not supported on PowerNV (bare metal) installations. Ubuntu 16.04.2 still allows 16G huge pages to be turned on. Contact Information = Mike Hollinger (mchol...@us.ibm.com) ---uname output--- Linux aprilmin4 4.4.0-83-generic #106-Ubuntu SMP Mon Jun 26 17:53:54 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = 8335-GTB ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1. Add the following to the kernel boot args (either via editing the petitboot boot option manually, or updating /boot/grub/grub.cfg: default_hugepagesz=16G hugepagesz=16G hugepages=4 2. Boot Linux 3. Observe that the kernel believes 16G huge pages are available: ubuntu@aprilmin7:~$ cat /proc/meminfo | grep -i huge AnonHugePages:475136 kB HugePages_Total: 0 HugePages_Free:0 HugePages_Rsvd:0 HugePages_Surp:0 Hugepagesize: 16777216 kB ubuntu@aprilmin7:~$ ls /sys/devices/system/node/node0/hugepages hugepages-1024kB hugepages-16384kB hugepages-16777216kB Stack trace output: no Oops output: no System Dump Info: The system is not configured to capture a system dump. *Additional Instructions for Mike Hollinger (mchol...@us.ibm.com): -Post a private note with access information to the machine that the bug is occuring on. -Attach sysctl -a output output to the bug. This may be recreated on any bare metal POWER8 server with Ubuntu 16.04.2; I haven't checked other versions of Ubuntu. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1706247/+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 1706247] Re: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV
** Tags removed: kernel-da-key ** Tags added: kernel-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/1706247 Title: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV Status in The Ubuntu-power-systems project: Triaged Status in linux package in Ubuntu: Triaged Bug description: 16G Huge Pages are not supported on PowerNV (bare metal) installations. Ubuntu 16.04.2 still allows 16G huge pages to be turned on. Contact Information = Mike Hollinger (mchol...@us.ibm.com) ---uname output--- Linux aprilmin4 4.4.0-83-generic #106-Ubuntu SMP Mon Jun 26 17:53:54 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = 8335-GTB ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1. Add the following to the kernel boot args (either via editing the petitboot boot option manually, or updating /boot/grub/grub.cfg: default_hugepagesz=16G hugepagesz=16G hugepages=4 2. Boot Linux 3. Observe that the kernel believes 16G huge pages are available: ubuntu@aprilmin7:~$ cat /proc/meminfo | grep -i huge AnonHugePages:475136 kB HugePages_Total: 0 HugePages_Free:0 HugePages_Rsvd:0 HugePages_Surp:0 Hugepagesize: 16777216 kB ubuntu@aprilmin7:~$ ls /sys/devices/system/node/node0/hugepages hugepages-1024kB hugepages-16384kB hugepages-16777216kB Stack trace output: no Oops output: no System Dump Info: The system is not configured to capture a system dump. *Additional Instructions for Mike Hollinger (mchol...@us.ibm.com): -Post a private note with access information to the machine that the bug is occuring on. -Attach sysctl -a output output to the bug. This may be recreated on any bare metal POWER8 server with Ubuntu 16.04.2; I haven't checked other versions of Ubuntu. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1706247/+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 1706247] Re: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV
** Summary changed: - Possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV + It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV ** Tags added: triage-g -- 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/1706247 Title: It should not be possible to turn on 16g huge pages on Ubuntu 16.04.2 PowerNV Status in The Ubuntu-power-systems project: Triaged Status in linux package in Ubuntu: Triaged Bug description: 16G Huge Pages are not supported on PowerNV (bare metal) installations. Ubuntu 16.04.2 still allows 16G huge pages to be turned on. Contact Information = Mike Hollinger (mchol...@us.ibm.com) ---uname output--- Linux aprilmin4 4.4.0-83-generic #106-Ubuntu SMP Mon Jun 26 17:53:54 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = 8335-GTB ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1. Add the following to the kernel boot args (either via editing the petitboot boot option manually, or updating /boot/grub/grub.cfg: default_hugepagesz=16G hugepagesz=16G hugepages=4 2. Boot Linux 3. Observe that the kernel believes 16G huge pages are available: ubuntu@aprilmin7:~$ cat /proc/meminfo | grep -i huge AnonHugePages:475136 kB HugePages_Total: 0 HugePages_Free:0 HugePages_Rsvd:0 HugePages_Surp:0 Hugepagesize: 16777216 kB ubuntu@aprilmin7:~$ ls /sys/devices/system/node/node0/hugepages hugepages-1024kB hugepages-16384kB hugepages-16777216kB Stack trace output: no Oops output: no System Dump Info: The system is not configured to capture a system dump. *Additional Instructions for Mike Hollinger (mchol...@us.ibm.com): -Post a private note with access information to the machine that the bug is occuring on. -Attach sysctl -a output output to the bug. This may be recreated on any bare metal POWER8 server with Ubuntu 16.04.2; I haven't checked other versions of Ubuntu. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1706247/+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
