mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
synced 2025-04-19 20:58:31 +09:00
2158599a4b
Add a hung_task detector mutex blocking test sample code. This module will create a dummy file on the debugfs. That file will cause the read process to sleep for enough long time (256 seconds) while holding a mutex. As a result, the second process will wait on the mutex for a prolonged duration and be detected by the hung_task detector. Usage is; > cd /sys/kernel/debug/hung_task > cat mutex & cat mutex and wait for hung_task message. [akpm@linux-foundation.org: make `hung_task_dir' static] Closes: https://lore.kernel.org/oe-kbuild-all/202503180827.4StpuFrD-lkp@intel.com/ Link: https://lkml.kernel.org/r/174046696281.2194069.4567490148001547311.stgit@mhiramat.tok.corp.google.com Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Cc: Anna Schumaker <anna.schumaker@oracle.com> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Joel Granados <joel.granados@kernel.org> Cc: Kent Overstreet <kent.overstreet@linux.dev> Cc: Lance Yang <ioworker0@gmail.com> Cc: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Tomasz Figa <tfiga@chromium.org> Cc: Waiman Long <longman@redhat.com> Cc: Will Deacon <will@kernel.org> Cc: Yongliang Gao <leonylgao@tencent.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
46 lines
1.9 KiB
Makefile
46 lines
1.9 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# Makefile for Linux samples code
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subdir-$(CONFIG_SAMPLE_AUXDISPLAY) += auxdisplay
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subdir-$(CONFIG_SAMPLE_ANDROID_BINDERFS) += binderfs
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subdir-$(CONFIG_SAMPLE_CHECK_EXEC) += check-exec
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subdir-$(CONFIG_SAMPLE_CGROUP) += cgroup
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obj-$(CONFIG_SAMPLE_CONFIGFS) += configfs/
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obj-$(CONFIG_SAMPLE_CONNECTOR) += connector/
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obj-$(CONFIG_SAMPLE_FANOTIFY_ERROR) += fanotify/
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subdir-$(CONFIG_SAMPLE_HIDRAW) += hidraw
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obj-$(CONFIG_SAMPLE_HW_BREAKPOINT) += hw_breakpoint/
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obj-$(CONFIG_SAMPLE_KDB) += kdb/
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obj-$(CONFIG_SAMPLE_KFIFO) += kfifo/
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obj-$(CONFIG_SAMPLE_KOBJECT) += kobject/
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obj-$(CONFIG_SAMPLE_KPROBES) += kprobes/
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subdir-$(CONFIG_SAMPLE_LANDLOCK) += landlock
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obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch/
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subdir-$(CONFIG_SAMPLE_PIDFD) += pidfd
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obj-$(CONFIG_SAMPLE_QMI_CLIENT) += qmi/
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obj-$(CONFIG_SAMPLE_RPMSG_CLIENT) += rpmsg/
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subdir-$(CONFIG_SAMPLE_SECCOMP) += seccomp
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subdir-$(CONFIG_SAMPLE_TIMER) += timers
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obj-$(CONFIG_SAMPLE_TRACE_EVENTS) += trace_events/
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obj-$(CONFIG_SAMPLE_TRACE_CUSTOM_EVENTS) += trace_events/
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obj-$(CONFIG_SAMPLE_TRACE_PRINTK) += trace_printk/
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obj-$(CONFIG_SAMPLE_FTRACE_DIRECT) += ftrace/
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obj-$(CONFIG_SAMPLE_FTRACE_DIRECT_MULTI) += ftrace/
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obj-$(CONFIG_SAMPLE_FTRACE_OPS) += ftrace/
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obj-$(CONFIG_SAMPLE_TRACE_ARRAY) += ftrace/
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subdir-$(CONFIG_SAMPLE_UHID) += uhid
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obj-$(CONFIG_VIDEO_PCI_SKELETON) += v4l/
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obj-y += vfio-mdev/
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subdir-$(CONFIG_SAMPLE_VFS) += vfs
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obj-$(CONFIG_SAMPLE_INTEL_MEI) += mei/
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obj-$(CONFIG_SAMPLE_TPS6594_PFSM) += pfsm/
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subdir-$(CONFIG_SAMPLE_WATCHDOG) += watchdog
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subdir-$(CONFIG_SAMPLE_WATCH_QUEUE) += watch_queue
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obj-$(CONFIG_SAMPLE_KMEMLEAK) += kmemleak/
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obj-$(CONFIG_SAMPLE_CORESIGHT_SYSCFG) += coresight/
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obj-$(CONFIG_SAMPLE_FPROBE) += fprobe/
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obj-$(CONFIG_SAMPLES_RUST) += rust/
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obj-$(CONFIG_SAMPLE_DAMON_WSSE) += damon/
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obj-$(CONFIG_SAMPLE_DAMON_PRCL) += damon/
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obj-$(CONFIG_SAMPLE_HUNG_TASK) += hung_task/
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