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The warning log is as follows: [ 2548.269614][ T7373] workqueue: WQ_MEM_RECLAIM rk628-monitor-wq:rk628_display_work is flushing !WQ_MEM_RECLAIM events:rk628_hdmirx_delayed_work_audio [ 2548.269661][ T7373] WARNING: CPU: 3 PID: 7373 at kernel/workqueue.c:2652 check_flush_dependency+0x11c/0x124 [ 2548.269696][ T7373] Modules linked in: wlan_mt7663_usb rtl8367vb btmtk_usb_unify [ 2548.269727][ T7373] CPU: 3 PID: 7373 Comm: kworker/u16:4 Not tainted 6.1.75 #3 [ 2548.269741][ T7373] Hardware name: LANGO RK3576 V10 Board (DT) [ 2548.269754][ T7373] Workqueue: rk628-monitor-wq rk628_display_work [ 2548.269768][ T7373] pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 2548.269783][ T7373] pc : check_flush_dependency+0x11c/0x124 [ 2548.269796][ T7373] lr : check_flush_dependency+0x11c/0x124 [ 2548.269808][ T7373] sp : ffffffc0134dbbb0 [ 2548.269816][ T7373] x29: ffffffc0134dbbb0 x28: ffffff80c2a31108 x27: ffffffc008079110 [ 2548.269831][ T7373] x26: ffffffc0134dbc98 x25: ffffff8093d0c9c0 x24: ffffff8092141e80 [ 2548.269847][ T7373] x23: ffffff81f6d88d00 x22: ffffff8092141e80 x21: ffffff807cc366c0 [ 2548.269861][ T7373] x20: ffffff80c0008600 x19: ffffffc008a036ec x18: ffffffc00f3e3050 [ 2548.269876][ T7373] x17: 0000000000000069 x16: ffffffffffffffff x15: 0000000000000004 [ 2548.269891][ T7373] x14: ffffffc009fdd720 x13: 0000000000000a9e x12: 0000000000000003 [ 2548.269906][ T7373] x11: 0000000000000000 x10: 0000000000000027 x9 : 7313130eec8ea700 [ 2548.269920][ T7373] x8 : 7313130eec8ea700 x7 : 7f7f7f7f7f7f7f7f x6 : fefefefeff6e6863 [ 2548.269934][ T7373] x5 : 000000000000001c x4 : 0000000000000018 x3 : 0000000000000000 [ 2548.269948][ T7373] x2 : 0000000000000000 x1 : ffffffc0134db950 x0 : 0000000000000080 [ 2548.269964][ T7373] Call trace: [ 2548.269973][ T7373] check_flush_dependency+0x11c/0x124 [ 2548.269987][ T7373] __flush_work+0xc8/0x2ac [ 2548.270000][ T7373] __cancel_work_timer+0x128/0x1c8 [ 2548.270012][ T7373] cancel_delayed_work_sync+0x14/0x24 [ 2548.270025][ T7373] rk628_hdmirx_disable+0x40/0xc0 [ 2548.270038][ T7373] rk628_display_disable+0x54/0xbc [ 2548.270048][ T7373] rk628_display_work+0x7c/0xd8 [ 2548.270057][ T7373] process_one_work+0x1a8/0x3b8 [ 2548.270071][ T7373] worker_thread+0x25c/0x430 [ 2548.270083][ T7373] kthread+0xec/0x1b8 [ 2548.270101][ T7373] ret_from_fork+0x10/0x20 [ 2548.270116][ T7373] ... Type: Fix Redmine ID: #526169 Associated modifications: N/A Test: N/A Signed-off-by: Zhibin Huang <zhibin.huang@rock-chips.com> Change-Id: I2d3a3be7e4696ccb2773e66d11e25ce49191e952
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 Restructured Text 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.