[Bug 1847590] Re: Check for CPU Measurement sampling

2019-12-06 Thread Frank Heimes
** Changed in: ubuntu-z-systems
   Status: Fix Committed => Fix Released

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Title:
  Check for CPU Measurement sampling

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[Bug 1847590] Re: Check for CPU Measurement sampling

2019-12-06 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 5.3.0-24.26

---
linux (5.3.0-24.26) eoan; urgency=medium

  * eoan/linux: 5.3.0-24.26 -proposed tracker (LP: #1852232)

  * Eoan update: 5.3.9 upstream stable release (LP: #1851550)
- io_uring: fix up O_NONBLOCK handling for sockets
- dm snapshot: introduce account_start_copy() and account_end_copy()
- dm snapshot: rework COW throttling to fix deadlock
- Btrfs: fix inode cache block reserve leak on failure to allocate data 
space
- btrfs: qgroup: Always free PREALLOC META reserve in
  btrfs_delalloc_release_extents()
- iio: adc: meson_saradc: Fix memory allocation order
- iio: fix center temperature of bmc150-accel-core
- libsubcmd: Make _FORTIFY_SOURCE defines dependent on the feature
- perf tests: Avoid raising SEGV using an obvious NULL dereference
- perf map: Fix overlapped map handling
- perf script brstackinsn: Fix recovery from LBR/binary mismatch
- perf jevents: Fix period for Intel fixed counters
- perf tools: Propagate get_cpuid() error
- perf annotate: Propagate perf_env__arch() error
- perf annotate: Fix the signedness of failure returns
- perf annotate: Propagate the symbol__annotate() error return
- perf annotate: Fix arch specific ->init() failure errors
- perf annotate: Return appropriate error code for allocation failures
- perf annotate: Don't return -1 for error when doing BPF disassembly
- staging: rtl8188eu: fix null dereference when kzalloc fails
- RDMA/siw: Fix serialization issue in write_space()
- RDMA/hfi1: Prevent memory leak in sdma_init
- RDMA/iw_cxgb4: fix SRQ access from dump_qp()
- RDMA/iwcm: Fix a lock inversion issue
- HID: hyperv: Use in-place iterator API in the channel callback
- kselftest: exclude failed TARGETS from runlist
- selftests/kselftest/runner.sh: Add 45 second timeout per test
- nfs: Fix nfsi->nrequests count error on nfs_inode_remove_request
- arm64: cpufeature: Effectively expose FRINT capability to userspace
- arm64: Fix incorrect irqflag restore for priority masking for compat
- arm64: ftrace: Ensure synchronisation in PLT setup for Neoverse-N1 
#1542419
- tty: serial: owl: Fix the link time qualifier of 'owl_uart_exit()'
- tty: serial: rda: Fix the link time qualifier of 'rda_uart_exit()'
- serial/sifive: select SERIAL_EARLYCON
- tty: n_hdlc: fix build on SPARC
- misc: fastrpc: prevent memory leak in fastrpc_dma_buf_attach
- RDMA/core: Fix an error handling path in 'res_get_common_doit()'
- RDMA/cm: Fix memory leak in cm_add/remove_one
- RDMA/nldev: Reshuffle the code to avoid need to rebind QP in error path
- RDMA/mlx5: Do not allow rereg of a ODP MR
- RDMA/mlx5: Order num_pending_prefetch properly with synchronize_srcu
- RDMA/mlx5: Add missing synchronize_srcu() for MW cases
- gpio: max77620: Use correct unit for debounce times
- fs: cifs: mute -Wunused-const-variable message
- arm64: vdso32: Fix broken compat vDSO build warnings
- arm64: vdso32: Detect binutils support for dmb ishld
- serial: mctrl_gpio: Check for NULL pointer
- serial: 8250_omap: Fix gpio check for auto RTS/CTS
- arm64: Default to building compat vDSO with clang when CONFIG_CC_IS_CLANG
- arm64: vdso32: Don't use KBUILD_CPPFLAGS unconditionally
- efi/cper: Fix endianness of PCIe class code
- efi/x86: Do not clean dummy variable in kexec path
- MIPS: include: Mark __cmpxchg as __always_inline
- riscv: avoid kernel hangs when trapped in BUG()
- riscv: avoid sending a SIGTRAP to a user thread trapped in WARN()
- riscv: Correct the handling of unexpected ebreak in do_trap_break()
- x86/xen: Return from panic notifier
- ocfs2: clear zero in unaligned direct IO
- fs: ocfs2: fix possible null-pointer dereferences in
  ocfs2_xa_prepare_entry()
- fs: ocfs2: fix a possible null-pointer dereference in
  ocfs2_write_end_nolock()
- fs: ocfs2: fix a possible null-pointer dereference in
  ocfs2_info_scan_inode_alloc()
- btrfs: silence maybe-uninitialized warning in clone_range
- arm64: armv8_deprecated: Checking return value for memory allocation
- sched/fair: Scale bandwidth quota and period without losing quota/period
  ratio precision
- sched/vtime: Fix guest/system mis-accounting on task switch
- perf/core: Rework memory accounting in perf_mmap()
- perf/core: Fix corner case in perf_rotate_context()
- perf/x86/amd: Change/fix NMI latency mitigation to use a timestamp
- drm/amdgpu: fix memory leak
- iio: imu: adis16400: release allocated memory on failure
- iio: imu: adis16400: fix memory leak
- iio: imu: st_lsm6dsx: fix waitime for st_lsm6dsx i2c controller
- MIPS: include: Mark __xchg as __always_inline
- MIPS: fw: sni: Fix out of bounds init of o32 stack
- s390/cio: fix virtio-ccw DMA without PV
- virt: vbox: fix memory 

[Bug 1847590] Re: Check for CPU Measurement sampling

2019-11-12 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 5.3.0-22.24

---
linux (5.3.0-22.24) eoan; urgency=medium

  * [REGRESSION]  md/raid0: cannot assemble multi-zone RAID0 with default_layout
setting (LP: #1849682)
- Revert "md/raid0: avoid RAID0 data corruption due to layout confusion."

  * refcount underflow and type confusion in shiftfs (LP: #1850867) // 
CVE-2019-15793
- SAUCE: shiftfs: Correct id translation for lower fs operations
- SAUCE: shiftfs: prevent type confusion
- SAUCE: shiftfs: Fix refcount underflow in btrfs ioctl handling

  * CVE-2018-12207
- kvm: x86, powerpc: do not allow clearing largepages debugfs entry
- SAUCE: KVM: vmx, svm: always run with EFER.NXE=1 when shadow paging is
  active
- SAUCE: x86: Add ITLB_MULTIHIT bug infrastructure
- SAUCE: kvm: mmu: ITLB_MULTIHIT mitigation
- SAUCE: kvm: Add helper function for creating VM worker threads
- SAUCE: kvm: x86: mmu: Recovery of shattered NX large pages
- SAUCE: cpu/speculation: Uninline and export CPU mitigations helpers
- SAUCE: kvm: x86: mmu: Apply global mitigations knob to ITLB_MULTIHIT

  * CVE-2019-11135
- x86/msr: Add the IA32_TSX_CTRL MSR
- x86/cpu: Add a helper function x86_read_arch_cap_msr()
- x86/cpu: Add a "tsx=" cmdline option with TSX disabled by default
- x86/speculation/taa: Add mitigation for TSX Async Abort
- x86/speculation/taa: Add sysfs reporting for TSX Async Abort
- kvm/x86: Export MDS_NO=0 to guests when TSX is enabled
- x86/tsx: Add "auto" option to the tsx= cmdline parameter
- x86/speculation/taa: Add documentation for TSX Async Abort
- x86/tsx: Add config options to set tsx=on|off|auto
- [Config] Disable TSX by default when possible

  * CVE-2019-0154
- SAUCE: drm/i915: Lower RM timeout to avoid DSI hard hangs
- SAUCE: drm/i915/gen8+: Add RC6 CTX corruption WA

  * CVE-2019-0155
- SAUCE: drm/i915: Rename gen7 cmdparser tables
- SAUCE: drm/i915: Disable Secure Batches for gen6+
- SAUCE: drm/i915: Remove Master tables from cmdparser
- SAUCE: drm/i915: Add support for mandatory cmdparsing
- SAUCE: drm/i915: Support ro ppgtt mapped cmdparser shadow buffers
- SAUCE: drm/i915: Allow parsing of unsized batches
- SAUCE: drm/i915: Add gen9 BCS cmdparsing
- SAUCE: drm/i915/cmdparser: Use explicit goto for error paths
- SAUCE: drm/i915/cmdparser: Add support for backward jumps
- SAUCE: drm/i915/cmdparser: Ignore Length operands during command matching

linux (5.3.0-21.22) eoan; urgency=medium

  * eoan/linux: 5.3.0-21.22 -proposed tracker (LP: #1850486)

  * Fix signing of staging modules in eoan (LP: #1850234)
- [Packaging] Leave unsigned modules unsigned after adding .gnu_debuglink

linux (5.3.0-20.21) eoan; urgency=medium

  * eoan/linux: 5.3.0-20.21 -proposed tracker (LP: #1849064)

  * eoan: alsa/sof: Enable SOF_HDA link and codec (LP: #1848490)
- [Config] Enable SOF_HDA link and codec

  * Eoan update: 5.3.7 upstream stable release (LP: #1848750)
- panic: ensure preemption is disabled during panic()
- [Config] updateconfigs for USB_RIO500
- USB: rio500: Remove Rio 500 kernel driver
- USB: yurex: Don't retry on unexpected errors
- USB: yurex: fix NULL-derefs on disconnect
- USB: usb-skeleton: fix runtime PM after driver unbind
- USB: usb-skeleton: fix NULL-deref on disconnect
- xhci: Fix false warning message about wrong bounce buffer write length
- xhci: Prevent device initiated U1/U2 link pm if exit latency is too long
- xhci: Check all endpoints for LPM timeout
- xhci: Fix USB 3.1 capability detection on early xHCI 1.1 spec based hosts
- usb: xhci: wait for CNR controller not ready bit in xhci resume
- xhci: Prevent deadlock when xhci adapter breaks during init
- xhci: Fix NULL pointer dereference in xhci_clear_tt_buffer_complete()
- USB: adutux: fix use-after-free on disconnect
- USB: adutux: fix NULL-derefs on disconnect
- USB: adutux: fix use-after-free on release
- USB: iowarrior: fix use-after-free on disconnect
- USB: iowarrior: fix use-after-free on release
- USB: iowarrior: fix use-after-free after driver unbind
- USB: usblp: fix runtime PM after driver unbind
- USB: chaoskey: fix use-after-free on release
- USB: ldusb: fix NULL-derefs on driver unbind
- serial: uartlite: fix exit path null pointer
- serial: uartps: Fix uartps_major handling
- USB: serial: keyspan: fix NULL-derefs on open() and write()
- USB: serial: ftdi_sio: add device IDs for Sienna and Echelon PL-20
- USB: serial: option: add Telit FN980 compositions
- USB: serial: option: add support for Cinterion CLS8 devices
- USB: serial: fix runtime PM after driver unbind
- USB: usblcd: fix I/O after disconnect
- USB: microtek: fix info-leak at probe
- USB: dummy-hcd: fix power budget for SuperSpeed mode
- usb: renesas_usbhs: gadget: Do not discard queues in

[Bug 1847590] Re: Check for CPU Measurement sampling

2019-11-12 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 4.15.0-69.78

---
linux (4.15.0-69.78) bionic; urgency=medium

  * KVM NULL pointer deref (LP: #1851205)
- KVM: nVMX: handle page fault in vmread fix

  * CVE-2018-12207
- KVM: MMU: drop vcpu param in gpte_access
- kvm: Convert kvm_lock to a mutex
- kvm: x86: Do not release the page inside mmu_set_spte()
- KVM: x86: make FNAME(fetch) and __direct_map more similar
- KVM: x86: remove now unneeded hugepage gfn adjustment
- KVM: x86: change kvm_mmu_page_get_gfn BUG_ON to WARN_ON
- KVM: x86: add tracepoints around __direct_map and FNAME(fetch)
- kvm: x86, powerpc: do not allow clearing largepages debugfs entry
- SAUCE: KVM: vmx, svm: always run with EFER.NXE=1 when shadow paging is
  active
- SAUCE: x86: Add ITLB_MULTIHIT bug infrastructure
- SAUCE: kvm: mmu: ITLB_MULTIHIT mitigation
- SAUCE: kvm: Add helper function for creating VM worker threads
- SAUCE: kvm: x86: mmu: Recovery of shattered NX large pages
- SAUCE: cpu/speculation: Uninline and export CPU mitigations helpers
- SAUCE: kvm: x86: mmu: Apply global mitigations knob to ITLB_MULTIHIT

  * CVE-2019-11135
- KVM: x86: use Intel speculation bugs and features as derived in generic 
x86
  code
- x86/msr: Add the IA32_TSX_CTRL MSR
- x86/cpu: Add a helper function x86_read_arch_cap_msr()
- x86/cpu: Add a "tsx=" cmdline option with TSX disabled by default
- x86/speculation/taa: Add mitigation for TSX Async Abort
- x86/speculation/taa: Add sysfs reporting for TSX Async Abort
- kvm/x86: Export MDS_NO=0 to guests when TSX is enabled
- x86/tsx: Add "auto" option to the tsx= cmdline parameter
- x86/speculation/taa: Add documentation for TSX Async Abort
- x86/tsx: Add config options to set tsx=on|off|auto
- SAUCE: x86/speculation/taa: Call tsx_init()
- SAUCE: x86/cpu: Include cpu header from bugs.c
- [Config] Disable TSX by default when possible

  * CVE-2019-0154
- SAUCE: drm/i915: Lower RM timeout to avoid DSI hard hangs
- SAUCE: drm/i915/gen8+: Add RC6 CTX corruption WA

  * CVE-2019-0155
- drm/i915/gtt: Add read only pages to gen8_pte_encode
- drm/i915/gtt: Read-only pages for insert_entries on bdw+
- drm/i915/gtt: Disable read-only support under GVT
- drm/i915: Prevent writing into a read-only object via a GGTT mmap
- drm/i915/cmdparser: Check reg_table_count before derefencing.
- drm/i915/cmdparser: Do not check past the cmd length.
- drm/i915: Silence smatch for cmdparser
- drm/i915: Move engine->needs_cmd_parser to engine->flags
- SAUCE: drm/i915: Rename gen7 cmdparser tables
- SAUCE: drm/i915: Disable Secure Batches for gen6+
- SAUCE: drm/i915: Remove Master tables from cmdparser
- SAUCE: drm/i915: Add support for mandatory cmdparsing
- SAUCE: drm/i915: Support ro ppgtt mapped cmdparser shadow buffers
- SAUCE: drm/i915: Allow parsing of unsized batches
- SAUCE: drm/i915: Add gen9 BCS cmdparsing
- SAUCE: drm/i915/cmdparser: Use explicit goto for error paths
- SAUCE: drm/i915/cmdparser: Add support for backward jumps
- SAUCE: drm/i915/cmdparser: Ignore Length operands during command matching

linux (4.15.0-68.77) bionic; urgency=medium

  * bionic/linux: 4.15.0-68.77 -proposed tracker (LP: #1849855)

  * [REGRESSION]  md/raid0: cannot assemble multi-zone RAID0 with default_layout
setting (LP: #1849682)
- Revert "md/raid0: avoid RAID0 data corruption due to layout confusion."

linux (4.15.0-67.76) bionic; urgency=medium

  * bionic/linux: 4.15.0-67.76 -proposed tracker (LP: #1849035)

  * Unexpected CFS throttling  (LP: #1832151)
- sched/fair: Add lsub_positive() and use it consistently
- sched/fair: Fix low cpu usage with high throttling by removing expiration 
of
  cpu-local slices
- sched/fair: Fix -Wunused-but-set-variable warnings

  * [CML] New device IDs for CML-U (LP: #1843774)
- i2c: i801: Add support for Intel Comet Lake
- spi: pxa2xx: Add support for Intel Comet Lake

  * CVE-2019-17666
- SAUCE: rtlwifi: rtl8822b: Fix potential overflow on P2P code
- SAUCE: rtlwifi: Fix potential overflow on P2P code

  * md raid0/linear doesn't show error state if an array member is removed and
allows successful writes (LP: #1847773)
- md raid0/linear: Mark array as 'broken' and fail BIOs if a member is gone

  * Change Config Option CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE for s390x from yes
to no (LP: #1848492)
- [Config] Change Config Option CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE for 
s390x
  from yes to no

  * [Packaging] Support building Flattened Image Tree (FIT) kernels
(LP: #1847969)
- [Packaging] add rules to build FIT image
- [Packaging] force creation of headers directory

  * bcache: Performance degradation when querying priority_stats (LP: #1840043)
- bcache: add cond_resched() in __bch_cache_cmp()

  * Add installer support fo

[Bug 1847590] Re: Check for CPU Measurement sampling

2019-11-12 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 5.0.0-35.38

---
linux (5.0.0-35.38) disco; urgency=medium

  * [REGRESSION]  md/raid0: cannot assemble multi-zone RAID0 with default_layout
setting (LP: #1849682)
- SAUCE: Fix revert "md/raid0: avoid RAID0 data corruption due to layout
  confusion."

  * refcount underflow and type confusion in shiftfs (LP: #1850867) // 
CVE-2019-15793
- SAUCE: shiftfs: Correct id translation for lower fs operations
- SAUCE: shiftfs: prevent type confusion
- SAUCE: shiftfs: Fix refcount underflow in btrfs ioctl handling

  * CVE-2018-12207
- kvm: Convert kvm_lock to a mutex
- kvm: x86: Do not release the page inside mmu_set_spte()
- KVM: x86: make FNAME(fetch) and __direct_map more similar
- KVM: x86: remove now unneeded hugepage gfn adjustment
- KVM: x86: change kvm_mmu_page_get_gfn BUG_ON to WARN_ON
- KVM: x86: add tracepoints around __direct_map and FNAME(fetch)
- kvm: x86, powerpc: do not allow clearing largepages debugfs entry
- SAUCE: KVM: vmx, svm: always run with EFER.NXE=1 when shadow paging is
  active
- SAUCE: x86: Add ITLB_MULTIHIT bug infrastructure
- SAUCE: kvm: mmu: ITLB_MULTIHIT mitigation
- SAUCE: kvm: Add helper function for creating VM worker threads
- SAUCE: kvm: x86: mmu: Recovery of shattered NX large pages
- SAUCE: cpu/speculation: Uninline and export CPU mitigations helpers
- SAUCE: kvm: x86: mmu: Apply global mitigations knob to ITLB_MULTIHIT

  * CVE-2019-11135
- KVM: x86: use Intel speculation bugs and features as derived in generic 
x86
  code
- x86/msr: Add the IA32_TSX_CTRL MSR
- x86/cpu: Add a helper function x86_read_arch_cap_msr()
- x86/cpu: Add a "tsx=" cmdline option with TSX disabled by default
- x86/speculation/taa: Add mitigation for TSX Async Abort
- x86/speculation/taa: Add sysfs reporting for TSX Async Abort
- kvm/x86: Export MDS_NO=0 to guests when TSX is enabled
- x86/tsx: Add "auto" option to the tsx= cmdline parameter
- x86/speculation/taa: Add documentation for TSX Async Abort
- x86/tsx: Add config options to set tsx=on|off|auto
- SAUCE: x86/speculation/taa: Call tsx_init()
- [Config] Disable TSX by default when possible

  * CVE-2019-0154
- SAUCE: drm/i915: Lower RM timeout to avoid DSI hard hangs
- SAUCE: drm/i915/gen8+: Add RC6 CTX corruption WA

  * CVE-2019-0155
- SAUCE: drm/i915: Rename gen7 cmdparser tables
- SAUCE: drm/i915: Disable Secure Batches for gen6+
- SAUCE: drm/i915: Remove Master tables from cmdparser
- SAUCE: drm/i915: Add support for mandatory cmdparsing
- SAUCE: drm/i915: Support ro ppgtt mapped cmdparser shadow buffers
- SAUCE: drm/i915: Allow parsing of unsized batches
- SAUCE: drm/i915: Add gen9 BCS cmdparsing
- SAUCE: drm/i915/cmdparser: Use explicit goto for error paths
- SAUCE: drm/i915/cmdparser: Add support for backward jumps
- SAUCE: drm/i915/cmdparser: Ignore Length operands during command matching

linux (5.0.0-34.36) disco; urgency=medium

  * disco/linux:  -proposed tracker (LP: #1850574)

  * [REGRESSION]  md/raid0: cannot assemble multi-zone RAID0 with default_layout
setting (LP: #1849682)
- Revert "md/raid0: avoid RAID0 data corruption due to layout confusion."

linux (5.0.0-33.35) disco; urgency=medium

  * disco/linux: 5.0.0-33.35 -proposed tracker (LP: #1849003)

  * Disco update: upstream stable patchset 2019-10-18 (LP: #1848817)
- tpm: use tpm_try_get_ops() in tpm-sysfs.c.
- drm/bridge: tc358767: Increase AUX transfer length limit
- drm/panel: simple: fix AUO g185han01 horizontal blanking
- video: ssd1307fb: Start page range at page_offset
- drm/stm: attach gem fence to atomic state
- drm/panel: check failure cases in the probe func
- drm/rockchip: Check for fast link training before enabling psr
- drm/radeon: Fix EEH during kexec
- gpu: drm: radeon: Fix a possible null-pointer dereference in
  radeon_connector_set_property()
- PCI: rpaphp: Avoid a sometimes-uninitialized warning
- ipmi_si: Only schedule continuously in the thread in maintenance mode
- clk: qoriq: Fix -Wunused-const-variable
- clk: sunxi-ng: v3s: add missing clock slices for MMC2 module clocks
- drm/amd/display: fix issue where 252-255 values are clipped
- drm/amd/display: reprogram VM config when system resume
- powerpc/powernv/ioda2: Allocate TCE table levels on demand for default DMA
  window
- clk: actions: Don't reference clk_init_data after registration
- clk: sirf: Don't reference clk_init_data after registration
- clk: sprd: Don't reference clk_init_data after registration
- clk: zx296718: Don't reference clk_init_data after registration
- powerpc/xmon: Check for HV mode when dumping XIVE info from OPAL
- powerpc/rtas: use device model APIs and serialization during LPM
- powerpc/futex: Fix warning: 'oldval' may be used un

[Bug 1847590] Re: Check for CPU Measurement sampling

2019-10-25 Thread Frank Heimes
Completed testing (regression) on disco on z13 LPAR according to test
case above - no issues found - updating tag.


** Attachment added: "regression_test_disco.txt"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1847590/+attachment/5299982/+files/regression_test_disco.txt

** Tags removed: verification-needed-disco
** Tags added: verification-done-disco

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Title:
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[Bug 1847590] Re: Check for CPU Measurement sampling

2019-10-25 Thread Frank Heimes
Completed testing (regression) on eoan on z13 LPAR according to test
case above - no issues found - updating tag.

** Attachment added: "regression_test_eoan.txt"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1847590/+attachment/5299985/+files/regression_test_eoan.txt

** Tags removed: verification-needed-eoan
** Tags added: verification-done-eoan

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Title:
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[Bug 1847590] Re: Check for CPU Measurement sampling

2019-10-25 Thread Frank Heimes
Completed testing (regression) on bionic on z13 LPAR according to test
case above - no issues found - updating tag.

** Attachment added: "regression_test_bionic.txt"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1847590/+attachment/5299983/+files/regression_test_bionic.txt

** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic

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Title:
  Check for CPU Measurement sampling

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[Bug 1847590] Re: Check for CPU Measurement sampling

2019-10-24 Thread Ubuntu Kernel Bot
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-
eoan' to 'verification-done-eoan'. If the problem still exists, change
the tag 'verification-needed-eoan' to 'verification-failed-eoan'.

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-eoan

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Title:
  Check for CPU Measurement sampling

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[Bug 1847590] Re: Check for CPU Measurement sampling

2019-10-22 Thread Ubuntu Kernel Bot
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

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Title:
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[Bug 1847590] Re: Check for CPU Measurement sampling

2019-10-22 Thread Ubuntu Kernel Bot
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-
disco' to 'verification-done-disco'. If the problem still exists, change
the tag 'verification-needed-disco' to 'verification-failed-disco'.

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-disco

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Title:
  Check for CPU Measurement sampling

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[Bug 1847590] Re: Check for CPU Measurement sampling

2019-10-17 Thread Frank Heimes
** Changed in: ubuntu-z-systems
   Status: In Progress => Fix Committed

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Title:
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[Bug 1847590] Re: Check for CPU Measurement sampling

2019-10-17 Thread Kleber Sacilotto de Souza
** Changed in: linux (Ubuntu Bionic)
   Status: New => Fix Committed

** Changed in: linux (Ubuntu Disco)
   Status: New => Fix Committed

** Changed in: linux (Ubuntu Eoan)
   Status: In Progress => Fix Committed

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[Bug 1847590] Re: Check for CPU Measurement sampling

2019-10-17 Thread Kleber Sacilotto de Souza
** Also affects: linux (Ubuntu Eoan)
   Importance: Undecided
 Assignee: Skipper Bug Screeners (skipper-screen-team)
   Status: In Progress

** Also affects: linux (Ubuntu Disco)
   Importance: Undecided
   Status: New

** Also affects: linux (Ubuntu Bionic)
   Importance: Undecided
   Status: New

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Title:
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[Bug 1847590] Re: Check for CPU Measurement sampling

2019-10-15 Thread Frank Heimes
Kernel SRU request submitted:
https://lists.ubuntu.com/archives/kernel-team/2019-October/thread.html#104715
changing status to 'In Progress'

** Changed in: linux (Ubuntu)
   Status: New => In Progress

** Changed in: ubuntu-z-systems
   Status: Incomplete => In Progress

** Description changed:

+ SRU Justification:
+ ==
+ 
+ [Impact]
+ 
+ * Check for CPU Measurement sampling to avoid potential loss of sampling
+ data
+ 
+ [Fix]
+ 
+ * 932bfc5aae08f3cb20c1c9f051542f5933710151 932bfc5 "s390/cpumsf: Check
+ for CPU Measurement sampling"
+ 
+ [Test Case]
+ 
+ * Have an LPAR configured with counter and sampling facilities anabled
+ 
+ * Use lscpumf to check the facilities available for your hardware
+ 
+ * Start a benchmark (like mem_alloc) and execute perf top
+ 
+ * Canonical can only do regression testing, functional testing is
+ currently only doable by IBM
+ 
+ [Regression Potential]
+ 
+ * There is as always some regression potential with having new code in
+ and other code changed
+ 
+ * but this particular change is limited to the s390x architecture,
+ 
+ * again to the counter and sampling facilities, that need to be
+ activated by intention
+ 
+ * and is only for compatibility with the latest and newest hw generation
+ only (z15 and L1III)
+ 
+ [Other Info]
+ 
+ * The fix/patch got upstream accepted with v5.4-rc2, hence it needs to
+ be applied to E, D and B
+ 
+ * The patch/commit neraly applied cleanly for me on E, D and B except a
+ little conflict that is easily solveable
+ 
+ * or can even be even automatically be solved by cherry-pick-ing with
+ '-X theirs'
+ 
+ * This is not relevant for Eoan GA, can be added with the help of an SRU
+ cycle to Eoan post-GA
+ 
+ __
+ 
  Description:
  s390/cpumsf: Check for CPU Measurement sampling
  
  s390 IBM z15 introduces a check if the CPU Mesurement Facility
  sampling is temporarily unavailable. If this is the case return -EBUSY
  and abort the setup of CPU Measuement facility sampling.
  
  Business Value:
- With z15 the CPU Measurement sampling facility hardware may be in use when 
the Linux kernel CPU Measurement sampling facility device driver sets up 
sampling. This results in loss of sampling data and has to be avoided. 
+ With z15 the CPU Measurement sampling facility hardware may be in use when 
the Linux kernel CPU Measurement sampling facility device driver sets up 
sampling. This results in loss of sampling data and has to be avoided.
  
  With z15 the CPU Measurement facility sampling hardware indicates being
  in use and the linux device driver can check for this situation and can
  abort any hardware access.
  
- 
  kernel 5.4
  Git Commit: 932bfc5aae08f3cb20c1c9f051542f5933710151

** Information type changed from Private to Public

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Title:
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