[Bug 1959529] Re: IBM IDAA customer exposes hipersocket page allocation failure on Ubuntu 20.04 based SSC
** Description changed: == Comment: #0 - D. Gary Chapman - 2022-01-26 12:43:25 == ---Problem Description--- - IBM IDAA customer exposes hypersocket page allocation failure on Ubuntu 20.04 based SSC - + IBM IDAA customer exposes hipersocket page allocation failure on Ubuntu 20.04 based SSC + Contact Information = Gary Chapman (ch...@us.ibm.com) - + ---uname output--- 5.4.0-73-generic #82-Ubuntu - - Machine Type = IBM Z in IDAA SSC-mode lpar - + + Machine Type = IBM Z in IDAA SSC-mode lpar + ---Debugger--- A debugger is not configured -- IBM SSC LEVEL: 4.1.5 IBM IDAA LEVEL: 7.5.6 On a client system we are observing this: Jan 19 16:25:57 data5 kernel: kworker/u760:28: page allocation failure: order:0, mode:0xa20(GFP_ATOMIC), nodemask=(null),cpuset=/,mems_allowed=0 Jan 19 16:25:57 data5 kernel: CPU: 20 PID: 4137988 Comm: kworker/u760:28 Kdump: loaded Tainted: G OE 5.4.0-73-generic #82-Ubuntu Jan 19 16:25:57 data5 kernel: Hardware name: IBM 8561 T01 727 (LPAR) Jan 19 16:25:57 data5 kernel: Workqueue: kcryptd/253:11 kcryptd_crypt [dm_crypt] Jan 19 16:25:57 data5 kernel: Call Trace: Jan 19 16:25:57 data5 kernel: ([<006b6d63e092>] show_stack+0x7a/0xc0) Jan 19 16:25:57 data5 kernel: [<006b6d64588a>] dump_stack+0x8a/0xb8 Jan 19 16:25:57 data5 kernel: [<006b6cfd8262>] warn_alloc+0xe2/0x160 IBM LTC Networking team has identified the upstream commit 714c9108851743bb718fbc1bfb81290f12a53854 as the root cause. - This patch shows up in the Ubuntu kernel source tree: + This patch shows up in the Ubuntu kernel source tree: https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/commit/?id=714c9108851743bb718fbc1bfb81290f12a53854 but has not been ported to Ubuntu 20.04 / kernel 5.4 IDAA on SSC requests backport to focal. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1959529 Title: IBM IDAA customer exposes hipersocket page allocation failure on Ubuntu 20.04 based SSC To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1959529/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1959529] Re: IBM IDAA customer exposes hipersocket page allocation failure on Ubuntu 20.04 based SSC
** Attachment added: "got diff" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1959529/+attachment/5558382/+files/git_diff.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1959529 Title: IBM IDAA customer exposes hipersocket page allocation failure on Ubuntu 20.04 based SSC To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1959529/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1959529] Re: IBM IDAA customer exposes hipersocket page allocation failure on Ubuntu 20.04 based SSC
A simple cherry-pick of commit 714c91088517 does not apply cleanly. Even if the commit itself is relatively small, the code in qeth_core_main.c has obviously changed significantly between kernel 5.7 (where the commit got upstream accepted) and focal's 5.4. Hence it's indeed a backport of commit 714c91088517 to focal's master-next tree needed. (changing the bug to Incomplete for now) ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Changed in: ubuntu-z-systems Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1959529 Title: IBM IDAA customer exposes hipersocket page allocation failure on Ubuntu 20.04 based SSC To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1959529/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1959529] Re: IBM IDAA customer exposes hipersocket page allocation failure on Ubuntu 20.04 based SSC
** Summary changed: - IBM IDAA customer exposes hypersocket page allocation failure on Ubuntu 20.04 based SSC + IBM IDAA customer exposes hipersocket page allocation failure on Ubuntu 20.04 based SSC ** Also affects: ubuntu-z-systems Importance: Undecided Status: New ** Changed in: ubuntu-z-systems Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team) ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Changed in: ubuntu-z-systems Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1959529 Title: IBM IDAA customer exposes hipersocket page allocation failure on Ubuntu 20.04 based SSC To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1959529/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
