linux-stable

mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-22 17:01:14 +00:00

No description

Find a file

Zqiang bddc92f6e8 rcutorture: Make stall-tasks directly exit when rcutorture tests end [ Upstream commit `431315a563` ] When the rcutorture tests start to exit, the rcu_torture_cleanup() is invoked to stop kthreads and release resources, if the stall-task kthreads exist, cpu-stall has started and the rcutorture.stall_cpu is set to a larger value, the rcu_torture_cleanup() will be blocked for a long time and the hung-task may occur, this commit therefore add kthread_should_stop() to the loop of cpu-stall operation, when rcutorture tests ends, no need to wait for cpu-stall to end, exit directly. Use the following command to test: insmod rcutorture.ko torture_type=srcu fwd_progress=0 stat_interval=4 stall_cpu_block=1 stall_cpu=200 stall_cpu_holdoff=10 read_exit_burst=0 object_debug=1 rmmod rcutorture [15361.918610] INFO: task rmmod:878 blocked for more than 122 seconds. [15361.918613] Tainted: G W 6.8.0-rc2-yoctodev-standard+ #25 [15361.918615] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [15361.918616] task:rmmod state:D stack:0 pid:878 tgid:878 ppid:773 flags:0x00004002 [15361.918621] Call Trace: [15361.918623] <TASK> [15361.918626] __schedule+0xc0d/0x28f0 [15361.918631] ? __pfx___schedule+0x10/0x10 [15361.918635] ? rcu_is_watching+0x19/0xb0 [15361.918638] ? schedule+0x1f6/0x290 [15361.918642] ? __pfx_lock_release+0x10/0x10 [15361.918645] ? schedule+0xc9/0x290 [15361.918648] ? schedule+0xc9/0x290 [15361.918653] ? trace_preempt_off+0x54/0x100 [15361.918657] ? schedule+0xc9/0x290 [15361.918661] schedule+0xd0/0x290 [15361.918665] schedule_timeout+0x56d/0x7d0 [15361.918669] ? debug_smp_processor_id+0x1b/0x30 [15361.918672] ? rcu_is_watching+0x19/0xb0 [15361.918676] ? __pfx_schedule_timeout+0x10/0x10 [15361.918679] ? debug_smp_processor_id+0x1b/0x30 [15361.918683] ? rcu_is_watching+0x19/0xb0 [15361.918686] ? wait_for_completion+0x179/0x4c0 [15361.918690] ? __pfx_lock_release+0x10/0x10 [15361.918693] ? __kasan_check_write+0x18/0x20 [15361.918696] ? wait_for_completion+0x9d/0x4c0 [15361.918700] ? _raw_spin_unlock_irq+0x36/0x50 [15361.918703] ? wait_for_completion+0x179/0x4c0 [15361.918707] ? _raw_spin_unlock_irq+0x36/0x50 [15361.918710] ? wait_for_completion+0x179/0x4c0 [15361.918714] ? trace_preempt_on+0x54/0x100 [15361.918718] ? wait_for_completion+0x179/0x4c0 [15361.918723] wait_for_completion+0x181/0x4c0 [15361.918728] ? __pfx_wait_for_completion+0x10/0x10 [15361.918738] kthread_stop+0x152/0x470 [15361.918742] _torture_stop_kthread+0x44/0xc0 [torture 7af7f9cbba28271a10503b653f9e05d518fbc8c3] [15361.918752] rcu_torture_cleanup+0x2ac/0xe90 [rcutorture f2cb1f556ee7956270927183c4c2c7749a336529] [15361.918766] ? __pfx_rcu_torture_cleanup+0x10/0x10 [rcutorture f2cb1f556ee7956270927183c4c2c7749a336529] [15361.918777] ? __kasan_check_write+0x18/0x20 [15361.918781] ? __mutex_unlock_slowpath+0x17c/0x670 [15361.918789] ? __might_fault+0xcd/0x180 [15361.918793] ? find_module_all+0x104/0x1d0 [15361.918799] __x64_sys_delete_module+0x2a4/0x3f0 [15361.918803] ? __pfx___x64_sys_delete_module+0x10/0x10 [15361.918807] ? syscall_exit_to_user_mode+0x149/0x280 Signed-off-by: Zqiang <qiang.zhang1211@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-06-27 13:52:12 +02:00
arch	riscv: force PAGE_SIZE linear mapping if debug_pagealloc is enabled	2024-06-21 14:40:35 +02:00
block	block: fix request.queuelist usage in flush	2024-06-21 14:40:24 +02:00
certs	This update includes the following changes:	2023-11-02 16:15:30 -10:00
crypto	crypto: ecrdsa - Fix module auto-load on add_key	2024-06-16 13:51:03 +02:00
Documentation	dt-bindings: usb: realtek,rts5411: Add missing "additionalProperties" on child nodes	2024-06-21 14:40:39 +02:00
drivers	crypto: hisilicon/qm - Add the err memory release process to qm uninit	2024-06-27 13:52:11 +02:00
fs	fs/writeback: bail out if there is no more inodes for IO and queued once	2024-06-27 13:52:11 +02:00
include	drm/mst: Fix NULL pointer dereference at drm_dp_add_payload_part2	2024-06-21 14:40:35 +02:00
init	printk: Fix LOG_CPU_MAX_BUF_SHIFT when BASE_SMALL is enabled	2024-06-12 11:39:35 +02:00
io_uring	io_uring/sqpoll: work around a potential audit memory leak	2024-06-27 13:52:11 +02:00
ipc	sysctl changes for v6.9-rc1	2024-03-18 14:59:13 -07:00
kernel	rcutorture: Make stall-tasks directly exit when rcutorture tests end	2024-06-27 13:52:12 +02:00
lib	ubsan: Restore dependency on ARCH_HAS_UBSAN	2024-06-12 11:39:38 +02:00
LICENSES	LICENSES: Add the copyleft-next-0.3.1 license	2022-11-08 15:44:01 +01:00
mm	mm/huge_memory: don't unpoison huge_zero_folio	2024-06-21 14:40:38 +02:00
net	sock_map: avoid race between sock_map_close and sk_psock_put	2024-06-21 14:40:32 +02:00
rust	rust: remove `params` from `module` macro example	2024-04-25 17:34:33 +02:00
samples	samples/landlock: Fix incorrect free in populate_ruleset_net	2024-05-30 09:45:01 +02:00
scripts	locking/atomic: scripts: fix ${atomic}_sub_and_test() kerneldoc	2024-06-21 14:40:31 +02:00
security	ima: Fix use-after-free on a dentry's dname.name	2024-06-21 14:40:38 +02:00
sound	ALSA: seq: Fix incorrect UMP type for system messages	2024-06-16 13:51:15 +02:00
tools	rtla/auto-analysis: Replace \t with spaces	2024-06-21 14:40:36 +02:00
usr	Kbuild updates for v6.8	2024-01-18 17:57:07 -08:00
virt	KVM: Drop unused @may_block param from gfn_to_pfn_cache_invalidate_start()	2024-04-11 12:58:53 -07:00
.clang-format	clang-format: Update with v6.7-rc4's `for_each` macro list	2023-12-08 23:54:38 +01:00
.cocciconfig
.editorconfig	.editorconfig: remove trim_trailing_whitespace option	2024-06-21 14:40:11 +02:00
.get_maintainer.ignore	Add Jeff Kirsher to .get_maintainer.ignore	2024-03-08 11:36:54 +00:00
.gitattributes	.gitattributes: set diff driver for Rust source code files	2023-05-31 17:48:25 +02:00
.gitignore	kbuild: create a list of all built DTB files	2024-02-19 18:20:39 +09:00
.mailmap	18 hotfixes, 7 of which are cc:stable.	2024-05-10 14:16:03 -07:00
.rustfmt.toml	rust: add `.rustfmt.toml`	2022-09-28 09:02:20 +02:00
COPYING	COPYING: state that all contributions really are covered by this file	2020-02-10 13:32:20 -08:00
CREDITS	MAINTAINERS: Drop Gustavo Pimentel as PCI DWC Maintainer	2024-03-27 13:41:02 -05:00
Kbuild	Kbuild updates for v6.1	2022-10-10 12:00:45 -07:00
Kconfig	kbuild: ensure full rebuild when the compiler is updated	2020-05-12 13:28:33 +09:00
MAINTAINERS	cpufreq: amd-pstate: remove global header file	2024-06-21 14:40:00 +02:00
Makefile	Linux 6.9.6	2024-06-21 14:40:40 +02:00
README	README: Fix spelling	2024-03-18 03:36:32 -06:00

README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.