Bug 211993 - Atomisp module makes the kernel appear to be a debug version
Summary: Atomisp module makes the kernel appear to be a debug version
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: Staging (show other bugs)
Hardware: Intel Linux
: P1 normal
Assignee: drivers_staging@kernel-bugs.osdl.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-02-28 08:59 UTC by Maurizio Ferreira
Modified: 2022-04-09 19:09 UTC (History)
3 users (show)

See Also:
Kernel Version: 5.11.1-arch1-1
Subsystem:
Regression: No
Bisected commit-id:

Attachments
output of dmesg command (62.55 KB, text/plain)
2021-02-28 08:59 UTC, Maurizio Ferreira 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Maurizio Ferreira 2021-02-28 08:59:25 UTC 
Created attachment 295527 [details]
output of dmesg command

The module makes the kernel appear to be a debug version, (while it is not)
since it emits the following message :

>[    6.149299] **********************************************************
>[    6.149302] **   NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE   **
>[    6.149304] **                                                      **
>[    6.149306] ** trace_printk() being used. Allocating extra memory.  **
>[    6.149307] **                                                      **
>[    6.149309] ** This means that this is a DEBUG kernel and it is     **
>[    6.149310] ** unsafe for production use.                           **
>[    6.149311] **                                                      **
>[    6.149313] ** If you see this message and you are not debugging    **
>[    6.149314] ** the kernel, report this immediately to your vendor!  **
>[    6.149316] **                                                      **
>[    6.149317] **   NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE   **
>[    6.149319] **********************************************************>

Moreover it does not honor the module parameter dbg_func since setting it to 0
has no effect.

Behaviour encountered on ArchLinux, kernel version 5.11.1-arch1-1, running on Asus T100Ha
Comment 1 Zhihao Wang 2021-05-29 10:55:39 UTC 
I have the same problem, kernel 5.10.x debian official kernel source, running on Hp Elitepad 1000 g2.
Comment 2 Zhihao Wang 2021-05-29 15:46:30 UTC 
Recently I tried the Ubuntu kernel and didn't find this problem. Maybe it is not a bug?
Comment 3 Zhihao Wang 2021-06-11 13:25:53 UTC 
I found something new.
If I switch the ACPI version to the lower, this message appeared.
Comment 4 Q. Chen 2022-03-26 01:21:12 UTC 
Same issue in the dmesg.

My laptop is vbook v1 with atom x5 z8300 soc.

running 5.16.16-arch1-1 kernel.

web research tells this warning message in dmesg is because "atomisp" module.

but if add "modprobe.blacklist=atomisp,atomisp_ov2680,atomisp_gmin_platform" in grub kernel command line, it will effect the s0ix sleep state. blacklist these modules will cause cpu cannot get into s0ix sleep mode.
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