This bug was fixed in the package linux - 4.11.0-10.15
---------------
linux (4.11.0-10.15) artful; urgency=low
* linux: 4.11.0-10.15 -proposed tracker (LP: #1701271)
* Artful update to v4.11.8 stable release (LP: #1701269)
- clk: sunxi-ng: a31: Correct lcd1-ch1 clock register offset
- clk: sunxi-ng: v3s: Fix usb otg device reset bit
- clk: sunxi-ng: sun5i: Fix ahb_bist_clk definition
- xen/blkback: fix disconnect while I/Os in flight
- xen-blkback: don't leak stack data via response ring
- ALSA: firewire-lib: Fix stall of process context at packet error
- ALSA: pcm: Don't treat NULL chmap as a fatal error
- ALSA: hda - Add Coffelake PCI ID
- ALSA: hda - Apply quirks to Broxton-T, too
- fs/exec.c: account for argv/envp pointers
- powerpc/perf: Fix oops when kthread execs user process
- autofs: sanity check status reported with AUTOFS_DEV_IOCTL_FAIL
- fs/dax.c: fix inefficiency in dax_writeback_mapping_range()
- lib/cmdline.c: fix get_options() overflow while parsing ranges
- perf/x86/intel: Add 1G DTLB load/store miss support for SKL
- perf probe: Fix probe definition for inlined functions
- KVM: x86: fix singlestepping over syscall
- KVM: MIPS: Fix maybe-uninitialized build failure
- KVM: s390: gaccess: fix real-space designation asce handling for gmap
shadows
- KVM: PPC: Book3S HV: Cope with host using large decrementer mode
- KVM: PPC: Book3S HV: Preserve userspace HTM state properly
- KVM: PPC: Book3S HV: Ignore timebase offset on POWER9 DD1
- KVM: PPC: Book3S HV: Context-switch EBB registers properly
- KVM: PPC: Book3S HV: Restore critical SPRs to host values on guest exit
- KVM: PPC: Book3S HV: Save/restore host values of debug registers
- CIFS: Improve readdir verbosity
- CIFS: Fix some return values in case of error in 'crypt_message'
- cxgb4: notify uP to route ctrlq compl to rdma rspq
- HID: Add quirk for Dell PIXART OEM mouse
- random: silence compiler warnings and fix race
- signal: Only reschedule timers on signals timers have sent
- powerpc/kprobes: Pause function_graph tracing during jprobes handling
- powerpc/64s: Handle data breakpoints in Radix mode
- Input: i8042 - add Fujitsu Lifebook AH544 to notimeout list
- brcmfmac: add parameter to pass error code in firmware callback
- brcmfmac: use firmware callback upon failure to load
- brcmfmac: unbind all devices upon failure in firmware callback
- time: Fix clock->read(clock) race around clocksource changes
- time: Fix CLOCK_MONOTONIC_RAW sub-nanosecond accounting
- arm64/vdso: Fix nsec handling for CLOCK_MONOTONIC_RAW
- target: Fix kref->refcount underflow in transport_cmd_finish_abort
- iscsi-target: Fix delayed logout processing greater than
SECONDS_FOR_LOGOUT_COMP
- iscsi-target: Reject immediate data underflow larger than SCSI transfer
length
- drm/radeon: add a PX quirk for another K53TK variant
- drm/radeon: add a quirk for Toshiba Satellite L20-183
- drm/amdgpu/atom: fix ps allocation size for EnableDispPowerGating
- drm/amdgpu: adjust default display clock
- drm/amdgpu: add Polaris12 DID
- ACPI / scan: Apply default enumeration to devices with ACPI drivers
- ACPI / scan: Fix enumeration for special SPI and I2C devices
- rxrpc: Fix several cases where a padded len isn't checked in ticket decode
- drm: Fix GETCONNECTOR regression
- usb: gadget: f_fs: avoid out of bounds access on comp_desc
- spi: double time out tolerance
- net: phy: fix marvell phy status reading
- brcmfmac: fix uninitialized warning in brcmf_usb_probe_phase2()
- Linux 4.11.8
* powerpc: Invalidate ERAT on powersave wakeup for POWER9 (LP: #1700521)
- SAUCE: powerpc: Invalidate ERAT on powersave wakeup for POWER9
* Miscellaneous Ubuntu changes
- d-i: Move qcom-emac from arm64 to shared nic-modules
-- Seth Forshee <seth.fors...@canonical.com> Thu, 29 Jun 2017 08:46:53
-0500
** Changed in: linux (Ubuntu Artful)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1698844
Title:
Fix /proc/cpuinfo revision for POWER9 DD2
Status in The Ubuntu-power-systems project:
Fix Committed
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Zesty:
Fix Committed
Status in linux source package in Artful:
Fix Released
Bug description:
== Comment: #0 - Breno Leitao <bren...@br.ibm.com> - 2017-06-19 09:44:36 ==
The P9 PVR bits 12-15 don't indicate a revision but instead different
chip configurations. From BookIV we have:
Bits Configuration
0 : Scale out 12 cores
1 : Scale out 24 cores
2 : Scale up 12 cores
3 : Scale up 24 cores
DD1 doesn't use this but DD2 does. Linux will mostly use the "Scale
out 24 core" configuration (ie. SMT4 not SMT8) which results in a PVR
of 0x004e1200. The reported revision in /proc/cpuinfo is hence
reported incorrectly as "18.0".
This patch fixes this to mask off only the relevant bits for the major
revision (ie. bits 8-11) for POWER9.
Please cherry pick: https://patchwork.ozlabs.org/patch/776052/
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-power-systems/+bug/1698844/+subscriptions
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