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| author |   Stanislav Fomichev <sdf@fomichev.me> | 2025-04-02 10:23:05 -0700 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2025-04-09 17:47:06 -0700 |
| commit | 311920774c408ce3366888d3817e7e648e9ccf1c (patch) | |
| tree | 286e7d2585707aca6459141602290cf1c806fd93 /kernel/configs | |
| parent | net: ipvlan: remove __get_unaligned_cpu32 from ipvlan driver (diff) | |
| download | linux-rng-311920774c408ce3366888d3817e7e648e9ccf1c.tar.xz linux-rng-311920774c408ce3366888d3817e7e648e9ccf1c.zip | |
configs/debug: run and debug PREEMPT
Recent change [0] resulted in a "BUG: using __this_cpu_read() in
preemptible" splat [1]. PREEMPT kernels have additional requirements
on what can and can not run with/without preemption enabled.
Expose those constrains in the debug kernels.
0: https://lore.kernel.org/netdev/20250314120048.12569-2-justin.iurman@uliege.be/
1: https://lore.kernel.org/netdev/20250402094458.006ba2a7@kernel.org/T/#mbf72641e9d7d274daee9003ef5edf6833201f1bc
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Simon Horman <horms@kernel.org>
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250402172305.1775226-1-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'kernel/configs')
| -rw-r--r-- | kernel/configs/debug.config | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/configs/debug.config b/kernel/configs/debug.config index 8aafd050b754..e81327d2cd63 100644 --- a/kernel/configs/debug.config +++ b/kernel/configs/debug.config @@ -112,3 +112,8 @@ CONFIG_BRANCH_PROFILE_NONE=y CONFIG_DYNAMIC_FTRACE=y CONFIG_FTRACE=y CONFIG_FUNCTION_TRACER=y +# +# Preemption +# +CONFIG_DEBUG_PREEMPT=y +CONFIG_PREEMPT=y |