From a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 Mon Sep 17 00:00:00 2001 From: Breno Leitao Date: Wed, 5 Aug 2026 07:52:36 -0700 Subject: workqueue: skip the node_nr_active update for non-unbound workqueues apply_wqattrs_commit() updates node_nr_active->max unconditionally. wq->node_nr_active[] is only allocated for unbound workqueues, so guard the call before per-cpu workqueues start using this path. No functional change: only unbound workqueues reach apply_wqattrs_*() today. Signed-off-by: Breno Leitao Signed-off-by: Tejun Heo --- arch/um/Kconfig.debug | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 arch/um/Kconfig.debug (limited to 'arch/um/Kconfig.debug') diff --git a/arch/um/Kconfig.debug b/arch/um/Kconfig.debug new file mode 100644 index 000000000..1dfb2959c --- /dev/null +++ b/arch/um/Kconfig.debug @@ -0,0 +1,38 @@ +# SPDX-License-Identifier: GPL-2.0 + +config GPROF + bool "Enable gprof support" + depends on DEBUG_INFO && FRAME_POINTER + help + This allows profiling of a User-Mode Linux kernel with the gprof + utility. + + See for more + details. + + If you're involved in UML kernel development and want to use gprof, + say Y. If you're unsure, say N. + +config GCOV + bool "Enable gcov support" + depends on DEBUG_INFO + depends on !KCOV + depends on !MODULES + help + This option allows developers to retrieve coverage data from a UML + session. + + See for more + details. + + If you're involved in UML kernel development and want to use gcov, + say Y. If you're unsure, say N. + +config EARLY_PRINTK + bool "Early printk" + default y + help + Write kernel log output directly to stdout. + + This is useful for kernel debugging when your machine crashes very + early before the console code is initialized. -- cgit v1.3.1