[Kernel-packages] [Bug 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- xenial' to 'verification-done-xenial'. If the problem still exists, change the tag 'verification-needed-xenial' to 'verification-failed- xenial'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-xenial -- 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/1829972 Title: Require improved hypervisor detection patch in Ubuntu 18.04 Status in Ubuntu on IBM z Systems: Fix Released Status in linux package in Ubuntu: Fix Released Status in linux source package in Bionic: Fix Released Bug description: == Justification == The s390x early machine detection code check will set all the uknown hypervisors to z/VM, this will cause crash for any non KVM, z/VM system. == Fixes == 03aa047e (s390/early: improve machine detection) Patch can be cherry-picked into Bionic kernel. Instead of setting all the other hypervisors to z/VM, it will only set MACHINE_FLAG_VM if it matches the case. == Tests == A test kernel could be found here: https://people.canonical.com/~phlin/kernel/lp-1829972-s390x-early/ Boot tested on a s390x KVM node and verified by IBM as well. == Regression Potential == Low, this just improves the detection logic and the changes are specific to s390x. == Original Bug Report == This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1829972/+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 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
Changing "linux (Ubuntu)" to Fix Released, since the patch got upstream accepted with kernel 5.0 and in between kernel 5.2 landed in Eoan's release pocket. Hence the entire ticket is Fix Released. ** Changed in: linux (Ubuntu) Status: Fix Committed => Fix Released ** Changed in: ubuntu-z-systems Status: Fix Committed => Fix Released -- 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/1829972 Title: Require improved hypervisor detection patch in Ubuntu 18.04 Status in Ubuntu on IBM z Systems: Fix Released Status in linux package in Ubuntu: Fix Released Status in linux source package in Bionic: Fix Released Bug description: == Justification == The s390x early machine detection code check will set all the uknown hypervisors to z/VM, this will cause crash for any non KVM, z/VM system. == Fixes == 03aa047e (s390/early: improve machine detection) Patch can be cherry-picked into Bionic kernel. Instead of setting all the other hypervisors to z/VM, it will only set MACHINE_FLAG_VM if it matches the case. == Tests == A test kernel could be found here: https://people.canonical.com/~phlin/kernel/lp-1829972-s390x-early/ Boot tested on a s390x KVM node and verified by IBM as well. == Regression Potential == Low, this just improves the detection logic and the changes are specific to s390x. == Original Bug Report == This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1829972/+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 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
This bug was fixed in the package linux - 4.15.0-55.60 --- linux (4.15.0-55.60) bionic; urgency=medium * linux: 4.15.0-55.60 -proposed tracker (LP: #1834954) * Request backport of ceph commits into bionic (LP: #1834235) - ceph: use atomic_t for ceph_inode_info::i_shared_gen - ceph: define argument structure for handle_cap_grant - ceph: flush pending works before shutdown super - ceph: send cap releases more aggressively - ceph: single workqueue for inode related works - ceph: avoid dereferencing invalid pointer during cached readdir - ceph: quota: add initial infrastructure to support cephfs quotas - ceph: quota: support for ceph.quota.max_files - ceph: quota: don't allow cross-quota renames - ceph: fix root quota realm check - ceph: quota: support for ceph.quota.max_bytes - ceph: quota: update MDS when max_bytes is approaching - ceph: quota: add counter for snaprealms with quota - ceph: avoid iput_final() while holding mutex or in dispatch thread * QCA9377 isn't being recognized sometimes (LP: #1757218) - SAUCE: USB: Disable USB2 LPM at shutdown * hns: fix ICMP6 neighbor solicitation messages discard problem (LP: #1833140) - net: hns: fix ICMP6 neighbor solicitation messages discard problem - net: hns: fix unsigned comparison to less than zero * Fix occasional boot time crash in hns driver (LP: #1833138) - net: hns: Fix probabilistic memory overwrite when HNS driver initialized * use-after-free in hns_nic_net_xmit_hw (LP: #1833136) - net: hns: fix KASAN: use-after-free in hns_nic_net_xmit_hw() * hns: attempt to restart autoneg when disabled should report error (LP: #1833147) - net: hns: Restart autoneg need return failed when autoneg off * systemd 237-3ubuntu10.14 ADT test failure on Bionic ppc64el (test-seccomp) (LP: #1821625) - powerpc: sys_pkey_alloc() and sys_pkey_free() system calls - powerpc: sys_pkey_mprotect() system call * [UBUNTU] pkey: Indicate old mkvp only if old and curr. mkvp are different (LP: #1832625) - pkey: Indicate old mkvp only if old and current mkvp are different * [UBUNTU] kernel: Fix gcm-aes-s390 wrong scatter-gather list processing (LP: #1832623) - s390/crypto: fix gcm-aes-s390 selftest failures * System crashes on hot adding a core with drmgr command (4.15.0-48-generic) (LP: #1833716) - powerpc/numa: improve control of topology updates - powerpc/numa: document topology_updates_enabled, disable by default * Kernel modules generated incorrectly when system is localized to a non- English language (LP: #1828084) - scripts: override locale from environment when running recordmcount.pl * [UBUNTU] kernel: Fix wrong dispatching for control domain CPRBs (LP: #1832624) - s390/zcrypt: Fix wrong dispatching for control domain CPRBs * CVE-2019-11815 - net: rds: force to destroy connection if t_sock is NULL in rds_tcp_kill_sock(). * Sound device not detected after resume from hibernate (LP: #1826868) - drm/i915: Force 2*96 MHz cdclk on glk/cnl when audio power is enabled - drm/i915: Save the old CDCLK atomic state - drm/i915: Remove redundant store of logical CDCLK state - drm/i915: Skip modeset for cdclk changes if possible * Handle overflow in proc_get_long of sysctl (LP: #1833935) - sysctl: handle overflow in proc_get_long * Dell XPS 13 (9370) defaults to s2idle sleep/suspend instead of deep, NVMe drains lots of power under s2idle (LP: #1808957) - Revert "UBUNTU: SAUCE: pci/nvme: prevent WDC PC SN720 NVMe from entering D3 and being disabled" - Revert "UBUNTU: SAUCE: nvme: add quirk to not call disable function when suspending" - Revert "UBUNTU: SAUCE: pci: prevent Intel NVMe SSDPEKKF from entering D3" - Revert "SAUCE: nvme: add quirk to not call disable function when suspending" - Revert "SAUCE: pci: prevent sk hynix nvme from entering D3" - PCI: PM: Avoid possible suspend-to-idle issue - PCI: PM: Skip devices in D0 for suspend-to-idle - nvme-pci: Sync queues on reset - nvme: Export get and set features - nvme-pci: Use host managed power state for suspend * linux v4.15 ftbfs on a newer host kernel (e.g. hwe) (LP: #1823429) - selinux: use kernel linux/socket.h for genheaders and mdp * 32-bit x86 kernel 4.15.0-50 crash in vmalloc_sync_all (LP: #1830433) - x86/mm/pat: Disable preemption around __flush_tlb_all() - x86/mm: Drop usage of __flush_tlb_all() in kernel_physical_mapping_init() - x86/mm: Disable ioremap free page handling on x86-PAE - ioremap: Update pgtable free interfaces with addr - x86/mm: Add TLB purge to free pmd/pte page interfaces - x86/init: fix build with CONFIG_SWAP=n - x86/mm: provide pmdp_establish() helper - x86/mm: Use WRITE_ONCE() when setting PTEs * hinic: fix oops due to race in set_rx_mode (LP: #1832048) - hinic: fix a bug in set
[Kernel-packages] [Bug 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
--- Comment From ch...@us.ibm.com 2019-06-20 14:54 EDT--- IBM z/OS Container Extensions appliance built on SSC 3.x with the proposed kernel successfully identified the zOS hypervisor: Linux version 4.15.0-53-generic (buildd@bos02-s390x-001) (gcc ver ntu 7.3.0-16ubuntu3)) #57-Ubuntu SMP Thu Jun 13 09:33:16 UTC 2019 -53.57-generic 4.15.18) setup.5ae0ad: Linux is running as a guest in 64-bit mode This fix is verified. ** Tags removed: verification-needed-bionic ** Tags added: verification-done-bionic -- 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/1829972 Title: Require improved hypervisor detection patch in Ubuntu 18.04 Status in Ubuntu on IBM z Systems: Fix Committed Status in linux package in Ubuntu: Fix Committed Status in linux source package in Bionic: Fix Committed Bug description: == Justification == The s390x early machine detection code check will set all the uknown hypervisors to z/VM, this will cause crash for any non KVM, z/VM system. == Fixes == 03aa047e (s390/early: improve machine detection) Patch can be cherry-picked into Bionic kernel. Instead of setting all the other hypervisors to z/VM, it will only set MACHINE_FLAG_VM if it matches the case. == Tests == A test kernel could be found here: https://people.canonical.com/~phlin/kernel/lp-1829972-s390x-early/ Boot tested on a s390x KVM node and verified by IBM as well. == Regression Potential == Low, this just improves the detection logic and the changes are specific to s390x. == Original Bug Report == This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1829972/+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 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed- bionic'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-bionic -- 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/1829972 Title: Require improved hypervisor detection patch in Ubuntu 18.04 Status in Ubuntu on IBM z Systems: Fix Committed Status in linux package in Ubuntu: Fix Committed Status in linux source package in Bionic: Fix Committed Bug description: == Justification == The s390x early machine detection code check will set all the uknown hypervisors to z/VM, this will cause crash for any non KVM, z/VM system. == Fixes == 03aa047e (s390/early: improve machine detection) Patch can be cherry-picked into Bionic kernel. Instead of setting all the other hypervisors to z/VM, it will only set MACHINE_FLAG_VM if it matches the case. == Tests == A test kernel could be found here: https://people.canonical.com/~phlin/kernel/lp-1829972-s390x-early/ Boot tested on a s390x KVM node and verified by IBM as well. == Regression Potential == Low, this just improves the detection logic and the changes are specific to s390x. == Original Bug Report == This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1829972/+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 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
** Changed in: linux (Ubuntu) Status: New => Fix Committed -- 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/1829972 Title: Require improved hypervisor detection patch in Ubuntu 18.04 Status in Ubuntu on IBM z Systems: Fix Committed Status in linux package in Ubuntu: Fix Committed Status in linux source package in Bionic: Fix Committed Bug description: == Justification == The s390x early machine detection code check will set all the uknown hypervisors to z/VM, this will cause crash for any non KVM, z/VM system. == Fixes == 03aa047e (s390/early: improve machine detection) Patch can be cherry-picked into Bionic kernel. Instead of setting all the other hypervisors to z/VM, it will only set MACHINE_FLAG_VM if it matches the case. == Tests == A test kernel could be found here: https://people.canonical.com/~phlin/kernel/lp-1829972-s390x-early/ Boot tested on a s390x KVM node and verified by IBM as well. == Regression Potential == Low, this just improves the detection logic and the changes are specific to s390x. == Original Bug Report == This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1829972/+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 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
** Changed in: ubuntu-z-systems Status: In Progress => Fix Committed -- 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/1829972 Title: Require improved hypervisor detection patch in Ubuntu 18.04 Status in Ubuntu on IBM z Systems: Fix Committed Status in linux package in Ubuntu: New Status in linux source package in Bionic: Fix Committed Bug description: == Justification == The s390x early machine detection code check will set all the uknown hypervisors to z/VM, this will cause crash for any non KVM, z/VM system. == Fixes == 03aa047e (s390/early: improve machine detection) Patch can be cherry-picked into Bionic kernel. Instead of setting all the other hypervisors to z/VM, it will only set MACHINE_FLAG_VM if it matches the case. == Tests == A test kernel could be found here: https://people.canonical.com/~phlin/kernel/lp-1829972-s390x-early/ Boot tested on a s390x KVM node and verified by IBM as well. == Regression Potential == Low, this just improves the detection logic and the changes are specific to s390x. == Original Bug Report == This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1829972/+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 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
** Changed in: linux (Ubuntu Bionic) Status: In Progress => Fix Committed -- 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/1829972 Title: Require improved hypervisor detection patch in Ubuntu 18.04 Status in Ubuntu on IBM z Systems: In Progress Status in linux package in Ubuntu: New Status in linux source package in Bionic: Fix Committed Bug description: == Justification == The s390x early machine detection code check will set all the uknown hypervisors to z/VM, this will cause crash for any non KVM, z/VM system. == Fixes == 03aa047e (s390/early: improve machine detection) Patch can be cherry-picked into Bionic kernel. Instead of setting all the other hypervisors to z/VM, it will only set MACHINE_FLAG_VM if it matches the case. == Tests == A test kernel could be found here: https://people.canonical.com/~phlin/kernel/lp-1829972-s390x-early/ Boot tested on a s390x KVM node and verified by IBM as well. == Regression Potential == Low, this just improves the detection logic and the changes are specific to s390x. == Original Bug Report == This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1829972/+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 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
** Changed in: ubuntu-z-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/1829972 Title: Require improved hypervisor detection patch in Ubuntu 18.04 Status in Ubuntu on IBM z Systems: In Progress Status in linux package in Ubuntu: New Status in linux source package in Bionic: In Progress Bug description: == Justification == The s390x early machine detection code check will set all the uknown hypervisors to z/VM, this will cause crash for any non KVM, z/VM system. == Fixes == 03aa047e (s390/early: improve machine detection) Patch can be cherry-picked into Bionic kernel. Instead of setting all the other hypervisors to z/VM, it will only set MACHINE_FLAG_VM if it matches the case. == Tests == A test kernel could be found here: https://people.canonical.com/~phlin/kernel/lp-1829972-s390x-early/ Boot tested on a s390x KVM node and verified by IBM as well. == Regression Potential == Low, this just improves the detection logic and the changes are specific to s390x. == Original Bug Report == This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1829972/+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 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
** Description changed: + == Justification == + The s390x early machine detection code check will set all the uknown + hypervisors to z/VM, this will cause crash for any non KVM, z/VM + system. + + == Fixes == + 03aa047e (s390/early: improve machine detection) + Patch can be cherry-picked into Bionic kernel. + + Instead of setting all the other hypervisors to z/VM, it will only set + MACHINE_FLAG_VM if it matches the case. + + == Tests == + A test kernel could be found here: + https://people.canonical.com/~phlin/kernel/lp-1829972-s390x-early/ + + Boot tested on a s390x KVM node and verified by IBM as well. + + == Regression Potential == + Low, this just improves the detection logic and the changes are + specific to s390x. + + + == Original Bug Report == + This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter ** Changed in: linux (Ubuntu Bionic) Assignee: (unassigned) => Po-Hsu Lin (cypressyew) ** Changed in: linux (Ubuntu Bionic) Status: New => 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/1829972 Title: Require improved hypervisor detection patch in Ubuntu 18.04 Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: New Status in linux source package in Bionic: In Progress Bug description: == Justification == The s390x early machine detection code check will set all the uknown hypervisors to z/VM, this will cause crash for any non KVM, z/VM system. == Fixes == 03aa047e (s390/early: improve machine detection) Patch can be cherry-picked into Bionic kernel. Instead of setting all the other hypervisors to z/VM, it will only set MACHINE_FLAG_VM if it matches the case. == Tests == A test kernel could be found here: https://people.canonical.com/~phlin/kernel/lp-1829972-s390x-early/ Boot tested on a s390x KVM node and verified by IBM as well. == Regression Potential == Low, this just improves the detection logic and the changes are specific to s390x. == Original Bug Report == This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1829972/+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 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
** Changed in: ubuntu-z-systems Status: Incomplete => Triaged -- 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/1829972 Title: Require improved hypervisor detection patch in Ubuntu 18.04 Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: New Status in linux source package in Bionic: New Bug description: This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1829972/+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 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
** Changed in: ubuntu-z-systems Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team) -- 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/1829972 Title: Require improved hypervisor detection patch in Ubuntu 18.04 Status in Ubuntu on IBM z Systems: Incomplete Status in linux package in Ubuntu: New Status in linux source package in Bionic: New Bug description: This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1829972/+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 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
Hello, can you help us to verify if this kernel can meet your needs? Thanks ** Changed in: ubuntu-z-systems Status: Triaged => 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/1829972 Title: Require improved hypervisor detection patch in Ubuntu 18.04 Status in Ubuntu on IBM z Systems: Incomplete Status in linux package in Ubuntu: New Status in linux source package in Bionic: New Bug description: This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1829972/+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 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
A test kernel for s390x could be found here: https://people.canonical.com/~phlin/kernel/lp-1829972-s390x-early/ Boot OK on a s390x KVM. ** Also affects: linux (Ubuntu Bionic) Importance: Undecided Status: New ** Tags added: bionic -- 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/1829972 Title: Require improved hypervisor detection patch in Ubuntu 18.04 Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: New Status in linux source package in Bionic: New Bug description: This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1829972/+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 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
--- Comment From heinz-werner_se...@de.ibm.com 2019-05-22 08:57 EDT--- Increased severity to high ** Tags removed: severity-medium ** Tags added: severity-high -- 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/1829972 Title: Require improved hypervisor detection patch in Ubuntu 18.04 Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: New Bug description: This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1829972/+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 1829972] Re: Require improved hypervisor detection patch in Ubuntu 18.04
** Also affects: ubuntu-z-systems Importance: Undecided Status: New ** Changed in: ubuntu-z-systems Importance: Undecided => Medium ** Changed in: ubuntu-z-systems Status: New => Triaged ** Changed in: ubuntu-z-systems Importance: Medium => High -- 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/1829972 Title: Require improved hypervisor detection patch in Ubuntu 18.04 Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: New Bug description: This kernel commit is requested to be included into the bionic's 4.15.0 LTS kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03aa047ef2db4985e444af6ee1c1dd084ad9fb4c s390/early: improve machine detection Right now the early machine detection code check stsi 3.2.2 for "KVM" and set MACHINE_IS_VM if this is different. As the console detection uses diagnose 8 if MACHINE_IS_VM returns true this will crash Linux early for any non z/VM system that sets a different value than KVM. So instead of assuming z/VM, do not set any of MACHINE_IS_LPAR, MACHINE_IS_VM, or MACHINE_IS_KVM. This is required for a dedicated SSC exploiter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1829972/+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
