[Kernel-packages] [Bug 1828495] Re: [KVM][CLX] CPUID_7_0_EDX_ARCH_CAPABILITIES is not enabled in VM.
List of commits needed to enable ARCH_CAPABILITIES:
Kernel:
commit 2bdb76c015df7125783d8394d6339d181cb5bc30
Author: Xiaoyao Li
Date: Fri Mar 8 15:57:20 2019 +0800
kvm/x86: Move MSR_IA32_ARCH_CAPABILITIES to array emulated_msrs
QEMU:
commit 014018e19b3c54dd1bf5072bc912ceffea40abe8
Author: Eduardo Habkost
Date: Fri Jan 25 20:06:06 2019 -0200
i386: Make arch_capabilities migratable
commit 485b1d256bcb0874bcde0223727c159b6837e6f8
Author: Eduardo Habkost
Date: Fri Jan 25 20:06:05 2019 -0200
i386: kvm: Disable arch_capabilities if MSR can't be set
commit b0a1980384fc265d91de7e09aa5fe531a69e6288
Author: Tao Xu
Date: Thu Dec 27 10:43:03 2018 +0800
i386: Update stepping of Cascadelake-Server
commit aec5e9c3a94cf8b7920f59bef69a6f426092c4a0
Author: Bandan Das
Date: Sun Nov 25 23:17:28 2018 -0500
kvm: Use KVM_GET_MSR_INDEX_LIST for MSR_IA32_ARCH_CAPABILITIES support
commit 07585923485952bf4cb7da563c9f91fecc85d09c
Author: Robert Hoo
Date: Mon Oct 15 12:47:24 2018 +0800
x86: Data structure changes to support MSR based features
commit f57bceb6ab5163ddd6c41ff4344ab8cf28a9c63d
Author: Robert Hoo
Date: Mon Oct 15 12:47:23 2018 +0800
kvm: Add support to KVM_GET_MSR_FEATURE_INDEX_LIST and KVM_GET_MSRS system
ioctl
commit d86f963694df27f11b3681ffd225c9362de1b634
Author: Robert Hoo
Date: Mon Oct 15 12:47:25 2018 +0800
x86: define a new MSR based feature word – FEATURE_WORDS_ARCH_CAPABILITIES
commit c7a88b52f62b30c04158eeb07f73e3f72221b6a8
Author: Tao Xu
Date: Wed Sep 19 11:11:22 2018 +0800
i386: Add new model of Cascadelake-Server
commit 3fc7c73139d2d38ae80c3b0bc963b1ac1555924c
Author: Robert Hoo
Date: Thu Jul 5 17:09:55 2018 +0800
i386: Add CPUID bit and feature words for IA32_ARCH_CAPABILITIES MSR
commit 8a11c62da9146dd89aee98947e6bd831e65a970d
Author: Robert Hoo
Date: Thu Jul 5 17:09:58 2018 +0800
i386: Add new CPU model Icelake-{Server,Client}
commit 8c80c99fcceabd0708a5a83f08577e778c9419f5
Author: Robert Hoo
Date: Thu Jul 5 17:09:54 2018 +0800
i386: Add new MSR indices for IA32_PRED_CMD and IA32_ARCH_CAPABILITIES
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https://bugs.launchpad.net/bugs/1828495
Title:
[KVM][CLX] CPUID_7_0_EDX_ARCH_CAPABILITIES is not enabled in VM.
Status in intel:
New
Status in linux package in Ubuntu:
Incomplete
Bug description:
This is a bug.
Test Environment:
Repro Steps:
1. Boot up guest using: -cpu Cascadelake-Server
[root@clx-2s2 yexin]# qemu-system-x86_64 -accel kvm -drive
if=virtio,id=hd,file=/home/x/x,format=qcow2 -m 4096 -smp 4 -cpu
Cascadelake-Server -serial stdio
char device redirected to /dev/pts/3 (label serial0)
qemu-system-x86_64: warning: host doesn't support requested feature:
CPUID.07H:ECX [bit 4]
qemu-system-x86_64: warning: host doesn't support requested feature:
CPUID.07H:ECX [bit 4]
qemu-system-x86_64: warning: host doesn't support requested feature:
CPUID.07H:ECX [bit 4]
qemu-system-x86_64: warning: host doesn't support requested feature:
CPUID.07H:ECX [bit 4]
2. To check CPU ID related to features[FEAT_7_0_EDX]
：CPUID_7_0_EDX_ARCH_CAPABILITIES
Expected Result: Both host and guest's CPUID.07H EDX bit 29 should be
1.
Actual Result:
Host's cpuid: 0x0007 0x00: eax=0x ebx=0xd39b
ecx=0x0818 edx=0xbc00 (EDX bit 29=1)
Guest's cpuid : 0x0007 0x00: eax=0x ebx=0xd19f0fb9
ecx=0x0818 edx=0x8400 (EDX bit 29=0)
Commit:2bdb76c015df7125783d8394d6339d181cb5bc30
Target Kerned: 5.1
Target Release: 19.10
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[Kernel-packages] [Bug 1828495] Re: [KVM][CLX] CPUID_7_0_EDX_ARCH_CAPABILITIES is not enabled in VM.
Rafael - Is this completed for Bionic releases? Thank you -- 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/1828495 Title: [KVM][CLX] CPUID_7_0_EDX_ARCH_CAPABILITIES is not enabled in VM. Status in intel: New Status in linux package in Ubuntu: Confirmed Status in qemu package in Ubuntu: Confirmed Status in linux source package in Bionic: New Status in qemu source package in Bionic: Confirmed Status in linux source package in Cosmic: New Status in qemu source package in Cosmic: Confirmed Status in linux source package in Disco: New Status in qemu source package in Disco: Confirmed Status in linux source package in Eoan: Confirmed Status in qemu source package in Eoan: Confirmed Bug description: This is a bug. Test Environment: Repro Steps: 1. Boot up guest using: -cpu Cascadelake-Server [root@clx-2s2 yexin]# qemu-system-x86_64 -accel kvm -drive if=virtio,id=hd,file=/home/x/x,format=qcow2 -m 4096 -smp 4 -cpu Cascadelake-Server -serial stdio char device redirected to /dev/pts/3 (label serial0) qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.07H:ECX [bit 4] qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.07H:ECX [bit 4] qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.07H:ECX [bit 4] qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.07H:ECX [bit 4] 2. To check CPU ID related to features[FEAT_7_0_EDX] ：CPUID_7_0_EDX_ARCH_CAPABILITIES Expected Result: Both host and guest's CPUID.07H EDX bit 29 should be 1. Actual Result: Host's cpuid: 0x0007 0x00: eax=0x ebx=0xd39b ecx=0x0818 edx=0xbc00 (EDX bit 29=1) Guest's cpuid : 0x0007 0x00: eax=0x ebx=0xd19f0fb9 ecx=0x0818 edx=0x8400 (EDX bit 29=0) Commit:2bdb76c015df7125783d8394d6339d181cb5bc30 Target Kerned: 5.1 Target Release: 19.10 To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1828495/+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 1885030] Re: [Intel] Add Error Disconnect Recover support
@ Brad please see response from Intel on your follow up on questions: (a) affect Nvidia's use of DPC / EDR, depending upon how their firmware is negotiating the control with the operating system, and Response: As per spec, platforms should rely on _OSC to negotiate PCIe capabilities ownership. So for new platforms NVDIA should start using_OSC instead of HEST table. (b) affect our existing installed base platforms that currently end up negotiating one way, but end up with a different result under this patch. E.g., the platform advertises "firmware first" in the ACPI HEST, but not via _OSC. I think it is more likely that server class systems will already do this correctly, and that embedded / "IoT" type devices are more likely to see an impact from this change. Response: For existing platforms, since they don't align with spec, recommendation is using pci quirks to create exception for their use cases. This is platform generic enhancement and can be tested on Intel platforms. There was a question also on Diagnostics: EDR related error messages: 1. "Failed to install notify handler" 2. "Firmware failed to locate DPC port" (Issue with 0x0D _DSM) 3. "This device doesn't support DPC" 4. "Invalid DPC trigger" EDR success messages: 1. "EDR event received" ( for receiving successful EDR event) 2. "device recovery successful" ( for successful recovery) -- 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/1885030 Title: [Intel] Add Error Disconnect Recover support Status in intel: Won't Fix Status in linux package in Ubuntu: Incomplete Status in linux source package in Focal: Incomplete Status in linux source package in Groovy: Incomplete Bug description: As per the following PCIe spec ECNs, implement EDR support in Linux kernel and upstream it. https://members.pcisig.com/wg/PCI-SIG/document/14076 https://members.pcisig.com/wg/PCI-SIG/document/12888 Patchset (Merged 5.7 mainline): 894020fdd88c PCI/AER: Rationalize error status register clearing ac1c8e35a326 PCI/DPC: Add Error Disconnect Recover (EDR) support aea47413e7ce PCI/DPC: Expose dpc_process_error(), dpc_reset_link() for use by EDR 20e15e673b05 PCI/AER: Add pci_aer_raw_clear_status() to unconditionally clear Error Status 27005618178e PCI/DPC: Cache DPC capabilities in pci_init_capabilities() e8e5ff2aeec1 PCI/ERR: Return status of pcie_do_recovery() b6cf1a42f916 PCI/ERR: Remove service dependency in pcie_do_recovery() be06c1b42eea PCI/DPC: Move DPC data into struct pci_dev 6d2c89441571 PCI/ERR: Update error status after reset_link() b5dfbeacf748 PCI/ERR: Combine pci_channel_io_frozen cases To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1885030/+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 1844559] Re: [GLK-R]enable CPUID
No New code was needed to add the CPUID Part of ./arch/x86/include/asm/intel-family.h You should have received GLK-R CPU from Intel. Please test and let us know if you see any issues. -- 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/1844559 Title: [GLK-R]enable CPUID Status in intel: New Status in linux package in Ubuntu: Incomplete Bug description: Description CPUID for GLK-R is configured as 0x706A8 in platform BIOS Target Release: 20.04 Target Kernel: TBD To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1844559/+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 1843794] Re: CML CPUIDs
Commit-ID: 8d7c6ac3b2371eb1cbc9925a88f4d10efff374de Target 5.4 rc release -- 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/1843794 Title: CML CPUIDs Status in intel: New Status in linux package in Ubuntu: Incomplete Bug description: Description Please upstream CPUID for all CML SKUs. CML-U/CML-S/CML-Y/CML-H Target Release: 20.04 Target Kernel: TBD To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1843794/+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 1843777] Re: [CML-U62] Need enable intel_pmc_core driver patch for Comet lake- U 6+2
Patch merged in 5.5: 5406327d43edd9a17 -- 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/1843777 Title: [CML-U62] Need enable intel_pmc_core driver patch for Comet lake- U 6+2 Status in intel: New Status in linux package in Ubuntu: Incomplete Bug description: Description Cometlake -U 6+2 is using a different CPU Model number: DEC 166, HEX: A6 We need the intel_pmc_core driver patch to support CML-U6+2 [ 13.053877] calling pmc_core_init+0x0/0x5f @ 1 [ 13.053878] initcall pmc_core_init+0x0/0x5f returned -19 after 0 usecs root@p-cml02~ # cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 166 model name : Intel(R) Core(TM) i7-10710U CPU @ 1.10GHz stepping : 0 microcode : 0xb0 cpu MHz : 2301.349 cache size : 12288 KB physical id : 0 siblings : 12 core id : 0 cpu cores : 6 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 22 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single ssbd ibrs ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp md_clear flush_l1d arch_capabilities bugs : spectre_v1 spectre_v2 spec_store_bypass bogomips : 3200.00 clflush size : 64 cache_alignment : 64 address sizes : 39 bits physical, 48 bits virtual Target Kernel: 5.5 Target Release: 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1843777/+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 1855954] Re: [TGL] VMD support in TGL
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/pci/controller/vmd.c?id=ec11e5c213cc20cac5e8310728b06793448b9f6d https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/pci/controller/vmd.c?id=08bcdd22ecdb01dd60d9284a55f8220a8a40150e -- 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/1855954 Title: [TGL] VMD support in TGL Status in intel: New Status in linux package in Ubuntu: Incomplete Bug description: Description: VMD support in Tiger Lake Platform Target Kernel: TBD Target Release: 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1855954/+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 1853219] Re: [CML-H] Add intel_thermal_pch driver support Comet Lake -H
Code merged in Kernel 5.6: 35709c4ee772 -- 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/1853219 Title: [CML-H] Add intel_thermal_pch driver support Comet Lake -H Status in intel: New Status in linux package in Ubuntu: Incomplete Bug description: Description Add intel_thermal_pch driver support Comet Lake -H Target Release: 20.04 Target Kernel: 5.5 To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1853219/+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 1856981] Re: [Soundwire] updates since 5.4 for 20.04
Update for Canonical: Soundwire 30% patches were merged in upstream branch, 30% patches are submitted but not merge yet, remaining patch still are working in progress. Developers expect next set of patches merge is Kernel 5.7. -- 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/1856981 Title: [Soundwire] updates since 5.4 for 20.04 Status in intel: New Status in linux package in Ubuntu: Confirmed Status in linux source package in Focal: Confirmed Bug description: Description: Soundwire commit list since v5.4 which used by Ubuntu 20.04. Target Kernel: 5.5/5.6 Target Release: 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1856981/+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 1685723] Re: [Feature] GLK/CNL:eMMC 5.1 support
That is correct. This feature capability first introduced in Geminilake (GLK). Same code capability is used in Coffelake and Cannonlake SKUs. -- 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/1685723 Title: [Feature] GLK/CNL:eMMC 5.1 support Status in intel: New Status in linux package in Ubuntu: Triaged Status in linux source package in Bionic: Triaged Bug description: CNL will have eMMC5.1 capable host controller that includes new features: 1) Command queue support – making the data transfers highly efficient by offloading the software overhead into the controller. 2) eMMC 5.1 further improves the reliability of operation by utilizing an “enhanced strobe” at the PHY layer. The eMMC5.1 is backward compatible with the existing eMMC 4.51 and eMMC 5.0 Devices. Target Kernel:4.16 Target Release: 18.04 Target Platform: GLK/CNL To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1685723/+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 1713619] Re: [Feature] RDT: Disable most RDT features on Skylake server
Pre-requisite changes: 5707b46a4206 x86/intel_rdt: Remove redundant ternary operator on return -> tip 24247aeeabe9 x86/intel_rdt/cqm: Improve limbo list processing -> tip bbc4615e0b7d x86/intel_rdt/mbm: Fix MBM overflow handler during CPU hotplug -> tip a9110b552d44 x86/intel_rdt: Modify the intel_pqr_state for better performance -> tip eda61c265f36 x86/intel_rdt/cqm: Clear the default RMID during hotcpu -> tip 0dd2d7494cd8 x86/intel_rdt: Show bitmask of shareable resource with other executing units -> tip e33026831bdb x86/intel_rdt/mbm: Handle counter overflow -> tip a4de1dfdd726 x86/intel_rdt/mbm: Add mbm counter initialization -> tip 9f52425ba303 x86/intel_rdt/mbm: Basic counting of MBM events (total and local) -> tip 895c663ecef1 x86/intel_rdt/cqm: Add CPU hotplug support -> tip 748b6b881ccd x86/intel_rdt/cqm: Add sched_in support -> tip 4be6c078428b x86/intel_rdt: Introduce rdt_enable_key for scheduling -> tip 4af4a88e0c92 x86/intel_rdt/cqm: Add mount,umount support -> tip f3cbeacaa06e x86/intel_rdt/cqm: Add rmdir support -> tip f9049547f7e7 x86/intel_rdt: Separate the ctrl bits from rmdir -> tip d89b7379015f x86/intel_rdt/cqm: Add mon_data -> tip 90c403e83101 x86/intel_rdt: Prepare for RDT monitor data support -> tip a9fcf8627dc0 x86/intel_rdt/cqm: Add cpus file support -> tip b09d981b3f34 x86/intel_rdt: Prepare to add RDT monitor cpus file support -> tip d6aaba615a48 x86/intel_rdt/cqm: Add tasks file support -> tip 0734ded1abee x86/intel_rdt: Change closid type from int to u32 -> tip c7d9aac61311 x86/intel_rdt/cqm: Add mkdir support for RDT monitoring -> tip 65b4f403057e x86/intel_rdt: Prepare for RDT monitoring mkdir support -> tip d4ab33201029 x86/intel_rdt/cqm: Add info files for RDT monitoring -> tip 5dc1d5c6bac2 x86/intel_rdt: Simplify info and base file lists -> tip edf6fa1c4a95 x86/intel_rdt/cqm: Add RMID (Resource monitoring ID) management -> tip 6a445edce657 x86/intel_rdt/cqm: Add RDT monitoring initialization -> tip dd131853f3fb x86/intel_rdt: Make rdt_resources_all more readable -> tip 1b5c0b758317 x86/intel_rdt: Cleanup namespace to support RDT monitoring -> tip cb2200e967c6 x86/intel_rdt: Mark rdt_root and closid_alloc as static -> tip 0583020456ce x86/intel_rdt: Change file names to accommodate RDT monitor code -> tip f01d7d51f577 x86/intel_rdt: Introduce a common compile option for RDT -> tip 1640ae9471ae x86/intel_rdt/cqm: Documentation for resctrl based RDT Monitoring -> tip c39a0e2c8850 x86/perf/cqm: Wipe out perf based cqm -> tip -- 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/1713619 Title: [Feature] RDT: Disable most RDT features on Skylake server Status in intel: New Status in linux package in Ubuntu: Incomplete Status in linux source package in Artful: Incomplete Bug description: Description: There are serious errata in CMT, MBM and CAT sub-features of resource director technology. Disable these features by default on Skylake but provide a boot time argument to re-enable them for users who understand the errata and can use them for specific workloads. Commit IDs:(4.14) 0576113a387e0c8a5d9e24b4cd62605d1c9c0db8 1d9807fc64c131a83a96917f2b2da1c9b00cf127 d56593eb5eda8f593db92927059697bbf89bc4b3 Target Release : 17.10 Target Kernel: 4.14 (Need backporting into 17.10 from 4.14 to 4.13) To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1713619/+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 1712249] Re: [Bug] Crystal Ridge: Fix device-dax sysfs duplicate name warning / failure
This bug was found by Red Hat and fixed/code upstreamed by Jeff Moyer
from Red Hat. This is being added to Canonical for Ubuntu to pick up.
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Title:
[Bug] Crystal Ridge: Fix device-dax sysfs duplicate name warning /
failure
Status in intel:
New
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Artful:
In Progress
Bug description:
Fix warnings of the form...
WARNING: CPU: 10 PID: 4983 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x62/0x80
sysfs: cannot create duplicate filename '/class/dax/dax12.0'
Call Trace:
dump_stack+0x63/0x86
__warn+0xcb/0xf0
warn_slowpath_fmt+0x5a/0x80
? kernfs_path_from_node+0x4f/0x60
sysfs_warn_dup+0x62/0x80
sysfs_do_create_link_sd.isra.2+0x97/0xb0
sysfs_create_link+0x25/0x40
device_add+0x266/0x630
devm_create_dax_dev+0x2cf/0x340 [dax]
dax_pmem_probe+0x1f5/0x26e [dax_pmem]
nvdimm_bus_probe+0x71/0x120
...by reusing the namespace id for the device-dax instance name.
Now that we have decided that there will never by more than one
device-dax instance per libnvdimm-namespace parent device [1], we can
directly reuse the namepace ids. There are some possible follow-on
cleanups, but those are saved for a later patch to simplify the -stable
backport.
[1]: https://lists.01.org/pipermail/linux-nvdimm/2016-December/008266.html
Fixes: 98a29c39dc68 ("libnvdimm, namespace: allow creation of multiple
pmem...")
Cc: Jeff Moyer
Cc:
Reported-by: Dariusz Dokupil
Signed-off-by: Dan Williams
Target Release: 17.10
Target Kernel: 4.13
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[Kernel-packages] [Bug 1842218] Re: [EHL] Enable intel_idle driver
** Tags added: ehl -- 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/1842218 Title: [EHL] Enable intel_idle driver Status in intel: Fix Released Status in linux package in Ubuntu: Incomplete Bug description: Description Need to enable intel_idle for the Elkhart Lake product line in mainline kernel. This allows for finer-grain C-state control (using all supported platform MWAIT hints) than ACPI C-states. The intel_idle driver uses a different approach (MWAIT calls from kernel driver) than Windows (ACPI calls from kernel driver). Target Release: 20.10 Target Kernel: 5.6 To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1842218/+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 1842106] Re: [EHL][OSE] HS-UART implementation
It is unclear if any further implementation is needed for this feature. -- 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/1842106 Title: [EHL][OSE] HS-UART implementation Status in intel: In Progress Status in linux package in Ubuntu: Confirmed Bug description: Description: Elkhart Lake has Offload Services Engine (OSE) that will be BIOS configurable either to have some RTOS take control of its IO blocks or hand them off to running OS. IoTG has asked to support UART. This should be based on Synopsys v4.00a specification. Target Release: 20.10 Target Kernel: TBD To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1842106/+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 2008519] [NEW] cpufreq: intel_pstate: Update Balance performance EPP for Sapphire Rapids
Public bug reported: [Feature Description] Ubuntu uses powersave governor as the default.While the powersave governor has much lower power, the performance is lower than +25% for several workloads compared to performance governor. Report is published: www.Phoronix.com showing difference of 37% The goal here is to keep mean performance delta of powersave governor from performance governor around 10% to 12% by running wide variety of server workloads. For some bursty workload, this delta can be still large, as ramp up of frequency will still lag with powersave governor irrespective of EPP setting. The performance governor always requests maximum frequency. Based on experiments, EPP of 0x00, 0x10, 0x20, the performance delta for powersave governor is around 12%. But the EPP 0x20 has 18% lower average power. Also experiments are done by raising intel_pstate sysfs min_perf_pct as high as 50%. This didn't bring in any additional improvements compared to just changing EPP. Target Kernel: 6.3 Target Release: 22.04 (5.15 kernel) [HW/SW Information] Sapphire Rapids [Business Justification] Performance Improvements Upstream: Merged 6.3 Commit ID: To be added ** Affects: intel Importance: Critical Status: New ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Tags: egs intel-kernel-22.04 ** Also affects: linux (Ubuntu) Importance: Undecided Status: New -- 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/2008519 Title: cpufreq: intel_pstate: Update Balance performance EPP for Sapphire Rapids Status in intel: New Status in linux package in Ubuntu: Incomplete Bug description: [Feature Description] Ubuntu uses powersave governor as the default.While the powersave governor has much lower power, the performance is lower than +25% for several workloads compared to performance governor. Report is published: www.Phoronix.com showing difference of 37% The goal here is to keep mean performance delta of powersave governor from performance governor around 10% to 12% by running wide variety of server workloads. For some bursty workload, this delta can be still large, as ramp up of frequency will still lag with powersave governor irrespective of EPP setting. The performance governor always requests maximum frequency. Based on experiments, EPP of 0x00, 0x10, 0x20, the performance delta for powersave governor is around 12%. But the EPP 0x20 has 18% lower average power. Also experiments are done by raising intel_pstate sysfs min_perf_pct as high as 50%. This didn't bring in any additional improvements compared to just changing EPP. Target Kernel: 6.3 Target Release: 22.04 (5.15 kernel) [HW/SW Information] Sapphire Rapids [Business Justification] Performance Improvements Upstream: Merged 6.3 Commit ID: To be added To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/2008519/+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 2008522] [NEW] Intel_powerclamp use powercap/idle-inject and allow cpumask to inject idle
Public bug reported: [Feature Description] Use the powercap/idle-inject framework for intel Power clamp driver. Allow CPU mask and max idle percent as module parameter. This way way driver can be used for LPM mode in MTL. Target Kernel: 6.3 Target Release: 23.10 [HW/SW Information] Meteor Lake [Business Justification] Platform enabling Upstream: Merged 6.3 Commit ID: acbc661032b8,bbfc3349c4e7,c7cd6f04c0df,98e596fc85fe,ebf519710218,966d0ab67350,621084965459,8526eb7fc75a,8e4736358837,c4e927da893b68b99e94a4a2 ** Affects: intel Importance: High Status: Fix Released ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: intel-kernel-23.10 ** Also affects: linux (Ubuntu) Importance: Undecided Status: New -- 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/2008522 Title: Intel_powerclamp use powercap/idle-inject and allow cpumask to inject idle Status in intel: Fix Released Status in linux package in Ubuntu: New Bug description: [Feature Description] Use the powercap/idle-inject framework for intel Power clamp driver. Allow CPU mask and max idle percent as module parameter. This way way driver can be used for LPM mode in MTL. Target Kernel: 6.3 Target Release: 23.10 [HW/SW Information] Meteor Lake [Business Justification] Platform enabling Upstream: Merged 6.3 Commit ID: acbc661032b8,bbfc3349c4e7,c7cd6f04c0df,98e596fc85fe,ebf519710218,966d0ab67350,621084965459,8526eb7fc75a,8e4736358837,c4e927da893b68b99e94a4a2 To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/2008522/+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 2008519] Re: cpufreq: intel_pstate: Update Balance performance EPP for Sapphire Rapids
** Changed in: intel Status: New => 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/2008519 Title: cpufreq: intel_pstate: Update Balance performance EPP for Sapphire Rapids Status in intel: Fix Released Status in linux package in Ubuntu: Incomplete Bug description: [Feature Description] Ubuntu uses powersave governor as the default.While the powersave governor has much lower power, the performance is lower than +25% for several workloads compared to performance governor. Report is published: www.Phoronix.com showing difference of 37% The goal here is to keep mean performance delta of powersave governor from performance governor around 10% to 12% by running wide variety of server workloads. For some bursty workload, this delta can be still large, as ramp up of frequency will still lag with powersave governor irrespective of EPP setting. The performance governor always requests maximum frequency. Based on experiments, EPP of 0x00, 0x10, 0x20, the performance delta for powersave governor is around 12%. But the EPP 0x20 has 18% lower average power. Also experiments are done by raising intel_pstate sysfs min_perf_pct as high as 50%. This didn't bring in any additional improvements compared to just changing EPP. Target Kernel: 6.3 Target Release: 22.04 (5.15 kernel) [HW/SW Information] Sapphire Rapids [Business Justification] Performance Improvements Upstream: Merged 6.3 Commit ID: To be added To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/2008519/+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 2008519] Re: cpufreq: intel_pstate: Update Balance performance EPP for Sapphire Rapids
Commit ID: 60675225ebeecea248035fd3a0efc82ae9038a98 https://git.kernel.org/pub/scm/linux/kernel/git/next/linux- next.git/commit/drivers/cpufreq/intel_pstate.c?h=next-20230303&id=60675225ebeecea248035fd3a0efc82ae9038a98 -- 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/2008519 Title: cpufreq: intel_pstate: Update Balance performance EPP for Sapphire Rapids Status in intel: Fix Released Status in linux package in Ubuntu: Incomplete Bug description: [Feature Description] Ubuntu uses powersave governor as the default.While the powersave governor has much lower power, the performance is lower than +25% for several workloads compared to performance governor. Report is published: www.Phoronix.com showing difference of 37% The goal here is to keep mean performance delta of powersave governor from performance governor around 10% to 12% by running wide variety of server workloads. For some bursty workload, this delta can be still large, as ramp up of frequency will still lag with powersave governor irrespective of EPP setting. The performance governor always requests maximum frequency. Based on experiments, EPP of 0x00, 0x10, 0x20, the performance delta for powersave governor is around 12%. But the EPP 0x20 has 18% lower average power. Also experiments are done by raising intel_pstate sysfs min_perf_pct as high as 50%. This didn't bring in any additional improvements compared to just changing EPP. Target Kernel: 6.3 Target Release: 22.04 (5.15 kernel) [HW/SW Information] Sapphire Rapids [Business Justification] Performance Improvements Upstream: Merged 6.3 Commit ID: To be added To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/2008519/+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 2003267] Re: [EGS] Backport intel_idle support for Eagle Stream Ubuntu 22.04 release
** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: intel Status: New => 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/2003267 Title: [EGS] Backport intel_idle support for Eagle Stream Ubuntu 22.04 release Status in intel: Fix Released Status in linux package in Ubuntu: New Bug description: Description: Enable Intel_idle for eagle stream. Target Kernel: Backport to 5.15 Target Release: 22.04 Commit Ids: 7eac3bd38d18 intel_idle: Fix SPR C6 optimization (Merged in 5.18 kernel) 39c184a6a9a7 intel_idle: Fix the 'preferred_cstates' module parameter (Merged in 5.18 kernel) 03eb65224e57 cpuidle: intel_idle: Drop redundant backslash at line end (Merged in 5.18 kernel) 3a9cf77b60dc intel_idle: add core C6 optimization for SPR (Merged in 5.18 kernel) da0e58c038e6 intel_idle: add 'preferred_cstates' module argument (Merged in 5.18 kernel) 9edf3c0ffef0 intel_idle: add SPR support(Merged in 5.18 kernel) 1548fac47a11 intel_idle: make SPR C1 and C1E be independent (Merged in 6.0 kernel) To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/2003267/+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
