f85a7fc271
Problem: The rcub tasks are allowed to run on isolated CPUs. This is a two-fold problem. The first is that these rcub tasks steal precious yielded CPU time away from kworker tasks that need to run on the isolated cpu. The second is that they interfere with nohz_full behavior. Solution: This is already solved for us upstream, so we simply backport the patch here. It affines the rcub tasks away from any nohz_full cpus. Note that even though this issue only pertains to our rt kernel, we also apply the patch to the std kernel for completeness. Verification: - Boot rt kernel without this patch applied, and check the affinity of the rcub tasks. They are set to run on any cpu, even the nohz_full ones. - Boot rt kernel with this patch included, and now see that the nohz_full cpus are excluded from rcub affinity. Closes-Bug: 1992201 Signed-off-by: Jim Somerville <jim.somerville@windriver.com> Change-Id: I53cbfeddcd7c89b17bd7465134c02311caa7914f
32 lines
1.7 KiB
Plaintext
32 lines
1.7 KiB
Plaintext
0001-Notification-of-death-of-arbitrary-processes.patch
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0002-PCI-Add-ACS-quirk-for-Intel-Fortville-NICs.patch
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0003-affine-compute-kernel-threads.patch
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0004-Affine-irqs-and-workqueues-with-kthread_cpus.patch
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0005-Make-kernel-start-eth-devices-at-offset.patch
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0006-intel-iommu-allow-ignoring-Ethernet-device-RMRR-with.patch
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0007-turn-off-write-same-in-smartqpi-driver.patch
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0008-Allow-dmar-quirks-for-broken-bioses.patch
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0009-tpm-ignore-burstcount-to-improve-tpm_tis-send-perfor.patch
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0010-bpf-cgroups-Fix-cgroup-v2-fallback-on-v1-v2-mixed-mo.patch
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0011-scsi-smartpqi-Enable-sas_address-sysfs-for-SATA-dev.patch
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0012-workqueue-Affine-rescuer-threads-and-unbound-wqs.patch
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0015-Revert-scsi-sd-Inline-sd_probe_part2.patch
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0016-Revert-commit-f049cf1a7b.patch
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0017-genirq-Export-affinity-setter-for-modules.patch
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0018-genirq-Provide-new-interfaces-for-affinity-hints.patch
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0019-ixgbe-Use-irq_update_affinity_hint.patch
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0020-Add-auxiliary-bus-support.patch
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0021-driver-core-auxiliary-bus-move-slab.h-from-include-f.patch
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0022-driver-core-auxiliary-bus-make-remove-function-retur.patch
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0023-driver-core-auxiliary-bus-minor-coding-style-tweaks.patch
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0024-driver-core-auxiliary-bus-Fix-auxiliary-bus-shutdown.patch
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0025-driver-core-auxiliary-bus-Fix-calling-stage-for-auxi.patch
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0026-driver-core-auxiliary-bus-Remove-unneeded-module-bit.patch
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0027-driver-core-auxiliary-bus-Fix-memory-leak-when-drive.patch
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0028-driver-core-auxiliary-bus-Enable-by-default.patch
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0029-Enable-CONFIG_PAGE_POOL-by-default.patch
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0030-x86-Enumerate-AVX512-FP16-CPUID-feature-flag.patch
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0031-KVM-x86-Expose-AVX512_FP16-for-supported-CPUID.patch
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0032-tools-headers-cpufeatures-Sync-with-the-kernel-sourc.patch
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0033-rcu-Avoid-running-boost-kthreads-on-isolated-CPUs.patch
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