kernel/linux.git/tools/testing/selftests/rcutorture, branch linux-7.0.y

scftorture: Update due to x86 not supporting none/voluntary preemption

2026-03-05T21:11:10+00:00

As of v7.0-rc1, architectures that support preemption, including x86 and arm64, no longer support CONFIG_PREEMPT_NONE or CONFIG_PREEMPT_VOLUNTARY. Attempting to build kernels with these two Kconfig options results in .config errors. This commit therefore switches such scftorture scenarios to CONFIG_PREEMPT_LAZY. Signed-off-by: Paul E. McKenney Signed-off-by: Boqun Feng Link: https://patch.msgid.link/20260303235903.1967409-4-paulmck@kernel.org

refscale: Update due to x86 not supporting none/voluntary preemption

2026-03-05T21:11:07+00:00

As of v7.0-rc1, architectures that support preemption, including x86 and arm64, no longer support CONFIG_PREEMPT_NONE or CONFIG_PREEMPT_VOLUNTARY. Attempting to build kernels with these two Kconfig options results in .config errors. This commit therefore switches such refscale scenarios to CONFIG_PREEMPT_LAZY. Signed-off-by: Paul E. McKenney Signed-off-by: Boqun Feng Link: https://patch.msgid.link/20260303235903.1967409-3-paulmck@kernel.org

rcuscale: Update due to x86 not supporting none/voluntary preemption

2026-03-05T21:11:03+00:00

As of v7.0-rc1, architectures that support preemption, including x86 and arm64, no longer support CONFIG_PREEMPT_NONE or CONFIG_PREEMPT_VOLUNTARY. Attempting to build kernels with these two Kconfig options results in .config errors. This commit therefore switches such rcuscale scenarios to CONFIG_PREEMPT_LAZY. Signed-off-by: Paul E. McKenney Signed-off-by: Boqun Feng Link: https://patch.msgid.link/20260303235903.1967409-2-paulmck@kernel.org

rcutorture: Update due to x86 not supporting none/voluntary preemption

2026-03-05T21:07:38+00:00

As of v7.0-rc1, architectures that support preemption, including x86 and arm64, no longer support CONFIG_PREEMPT_NONE or CONFIG_PREEMPT_VOLUNTARY. Attempting to build kernels with these two Kconfig options results in .config errors. This commit therefore switches such rcutorture scenarios to CONFIG_PREEMPT_LAZY. Signed-off-by: Paul E. McKenney Reviewed-by: Joel Fernandes Signed-off-by: Boqun Feng Link: https://patch.msgid.link/bfe89f6c-3b63-40c6-aa6d-5f523e3e9a31@paulmck-laptop

Merge branch 'rcu-torture.20260104a' into rcu-next

2026-01-04T10:53:06+00:00

* rcu-torture.20260104a: rcutorture: Add --kill-previous option to terminate previous kvm.sh runs rcutorture: Prevent concurrent kvm.sh runs on same source tree torture: Include commit discription in testid.txt torture: Make config2csv.sh properly handle comments in .boot files torture: Make kvm-series.sh give run numbers and totals torture: Make kvm-series.sh give build numbers and totals torture: Parallelize kvm-series.sh guest-OS execution rcutorture: Add context checks to rcu_torture_timer()

rcutorture: Add --kill-previous option to terminate previous kvm.sh runs

2026-01-04T10:51:14+00:00

When kvm.sh is killed, its child processes (make, gcc, qemu, etc.) may continue running. This prevents new kvm.sh instances from starting even though the parent is gone. Add a --kill-previous option that uses fuser(1) to terminate all processes holding the flock file before attempting to acquire it. This provides a clean way to recover from stale/zombie kvm.sh runs which sometimes may have lots of qemu and compiler processes still disturbing. Signed-off-by: Joel Fernandes Tested-by: Paul E. McKenney Signed-off-by: Boqun Feng

rcutorture: Prevent concurrent kvm.sh runs on same source tree

2026-01-04T10:50:59+00:00

Add flock-based locking to kvm.sh to prevent multiple instances from running concurrently on the same source tree. This prevents build failures caused by one instance's "make clean" deleting generated files while another instance is building causing build failures. The lock file is placed in the rcutorture directory and added to .gitignore. Signed-off-by: Joel Fernandes Tested-by: Paul E. McKenney Signed-off-by: Boqun Feng

torture: Include commit discription in testid.txt

2026-01-01T08:44:37+00:00

Currently, the testid.txt file in the top-level directory of the rcutorture results contains the output of "git rev-parse HEAD", which just gives the full SHA-1 of the current commit. This is followed by the output of "git status", which is further followed by the output of "git diff". This works, but is less than helpful to human readers scanning a list of commits. This commit therefore instead uses "git show --oneline --no-patch HEAD", which provides a short SHA-1, but also the names of any branches and the commit's title. Signed-off-by: Paul E. McKenney Signed-off-by: Boqun Feng

torture: Make config2csv.sh properly handle comments in .boot files

2026-01-01T08:44:36+00:00

As in strip the "#" and everything after it and *then* tokenize. Signed-off-by: Paul E. McKenney Signed-off-by: Boqun Feng

torture: Make kvm-series.sh give run numbers and totals

2026-01-01T08:44:36+00:00

The kvm-series.sh script can easily be convinced to run on the order of 1,000 guest OSes, so some sort of progress indicator would be helpful. This commit therefore updates the "Starting" output lines to read as in the following example, adding the ("3 of 4"): Starting TREE02/1.7e0ad1b49057 using 8 CPUs (4 of 4) Sat Nov 8 10:51:06 PM PST 2025 Signed-off-by: Paul E. McKenney Signed-off-by: Boqun Feng