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Wang Shuaiwei b17211b512 scsi: ufs: core: Fix SError in ufshcd_rtc_work() during UFS suspend [ Upstream commit `b0bd84c392` ] In __ufshcd_wl_suspend(), cancel_delayed_work_sync() is called to cancel the UFS RTC work, but it is placed after ufshcd_vops_suspend(hba, pm_op, POST_CHANGE). This creates a race condition where ufshcd_rtc_work() can still be running while ufshcd_vops_suspend() is executing. When UFSHCD_CAP_CLK_GATING is not supported, the condition !hba->clk_gating.active_reqs is always true, causing ufshcd_update_rtc() to be executed. Since ufshcd_vops_suspend() typically performs clock gating operations, executing ufshcd_update_rtc() at that moment triggers an SError. The kernel panic trace is as follows: Kernel panic - not syncing: Asynchronous SError Interrupt Call trace: dump_backtrace+0xec/0x128 show_stack+0x18/0x28 dump_stack_lvl+0x40/0xa0 dump_stack+0x18/0x24 panic+0x148/0x374 nmi_panic+0x3c/0x8c arm64_serror_panic+0x64/0x8c do_serror+0xc4/0xc8 el1h_64_error_handler+0x34/0x4c el1h_64_error+0x68/0x6c el1_interrupt+0x20/0x58 el1h_64_irq_handler+0x18/0x24 el1h_64_irq+0x68/0x6c ktime_get+0xc4/0x12c ufshcd_mcq_sq_stop+0x4c/0xec ufshcd_mcq_sq_cleanup+0x64/0x1dc ufshcd_clear_cmd+0x38/0x134 ufshcd_issue_dev_cmd+0x298/0x4d0 ufshcd_exec_dev_cmd+0x1a4/0x1c4 ufshcd_query_attr+0xbc/0x19c ufshcd_rtc_work+0x10c/0x1c8 process_scheduled_works+0x1c4/0x45c worker_thread+0x32c/0x3e8 kthread+0x120/0x1d8 ret_from_fork+0x10/0x20 Fix this by moving cancel_delayed_work_sync() before the call to ufshcd_vops_suspend(hba, pm_op, PRE_CHANGE), ensuring the UFS RTC work is fully completed or cancelled at that point. Cc: Bean Huo <beanhuo@iokpp.de> Fixes: `6bf999e0eb` ("scsi: ufs: core: Add UFS RTC support") Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Wang Shuaiwei <wangshuaiwei1@xiaomi.com> Link: https://patch.msgid.link/20260307035128.3419687-1-wangshuaiwei1@xiaomi.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2026-03-19 16:08:31 +01:00
arch	powerpc, perf: Check that current->mm is alive before getting user callchain	2026-03-19 16:08:31 +01:00
block	block: use trylock to avoid lockdep circular dependency in sysfs	2026-03-12 07:09:59 -04:00
certs	sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3	2024-09-20 19:52:48 +03:00
crypto	crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec	2026-01-30 10:32:12 +01:00
Documentation	KVM: x86: Introduce KVM_X86_QUIRK_VMCS12_ALLOW_FREEZE_IN_SMM	2026-03-19 16:08:24 +01:00
drivers	scsi: ufs: core: Fix SError in ufshcd_rtc_work() during UFS suspend	2026-03-19 16:08:31 +01:00
fs	ceph: fix memory leaks in ceph_mdsc_build_path()	2026-03-19 16:08:30 +01:00
include	mmc: core: Avoid bitfield RMW for claim/retune flags	2026-03-19 16:08:29 +01:00
init	printk changes for 6.18	2025-10-04 11:13:11 -07:00
io_uring	io_uring/zcrx: fix user_ref race between scrub and refill paths	2026-03-04 07:21:33 -05:00
ipc	ipc: don't audit capability check in ipc_permissions()	2026-02-26 14:59:19 -08:00
kernel	time/jiffies: Mark jiffies_64_to_clock_t() notrace	2026-03-19 16:08:31 +01:00
lib	debugobject: Make it work with deferred page initialization - again	2026-03-12 07:09:08 -04:00
LICENSES	LICENSES: Replace the obsolete address of the FSF in the GFDL-1.2	2025-07-24 11:15:39 +02:00
mm	mm/kfence: disable KFENCE upon KASAN HW tags enablement	2026-03-19 16:08:29 +01:00
net	libceph: admit message frames only in CEPH_CON_S_OPEN state	2026-03-19 16:08:30 +01:00
rust	rust: str: make NullTerminatedFormatter public	2026-03-19 16:08:24 +01:00
samples	samples/ftrace: Adjust LoongArch register restore order in direct calls	2026-01-08 10:17:11 +01:00
scripts	kbuild: rpm-pkg: Disable automatic requires for manual debuginfo package	2026-03-04 07:21:32 -05:00
security	apparmor: fix race between freeing data and fs accessing it	2026-03-13 17:23:30 +01:00
sound	ALSA: usb-audio: Improve Focusrite sample rate filtering	2026-03-19 16:08:31 +01:00
tools	perf synthetic-events: Fix stale build ID in module MMAP2 records	2026-03-19 16:08:20 +01:00
usr	gen_init_cpio: Ignore fsync() returning EINVAL on pipes	2025-10-07 09:53:05 -07:00
virt	KVM: Don't clobber irqfd routing type when deassigning irqfd	2026-02-11 13:41:44 +01:00
.clang-format	memblock: drop for_each_free_mem_pfn_range_in_zone_from()	2025-09-14 08:49:03 +03:00
.clippy.toml	rust: clean Rust 1.88.0's warning about `clippy::disallowed_macros` configuration	2025-05-07 00:11:47 +02:00
.cocciconfig	scripts: add Linux .cocciconfig for coccinelle	2016-07-22 12:13:39 +02:00
.editorconfig	.editorconfig: remove trim_trailing_whitespace option	2024-06-13 16:47:52 +02:00
.get_maintainer.ignore	MAINTAINERS: remove Alyssa Rosenzweig	2025-09-18 21:17:31 +02:00
.gitattributes	.gitattributes: set diff driver for Rust source code files	2023-05-31 17:48:25 +02:00
.gitignore	.gitignore: ignore compile_commands.json globally	2025-08-12 15:53:55 -07:00
.mailmap	8 hotfixes. 4 are cc:stable, 7 are against mm/.	2025-11-26 12:38:05 -08:00
.pylintrc	tools: docs: parse-headers.py: move it from sphinx dir	2025-08-29 15:54:42 -06:00
.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: mark ISDN subsystem as orphan	2025-10-27 17:49:45 -07:00
Kbuild	sched: Make migrate_{en,dis}able() inline	2025-09-25 09:57:16 +02:00
Kconfig	io_uring: Rename KConfig to Kconfig	2025-02-19 14:53:27 -07:00
MAINTAINERS	soc: fixes for 6.18, part 4	2025-11-28 09:57:31 -08:00
Makefile	rust: kbuild: allow `unused_features`	2026-03-19 16:08:24 +01:00
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.