Bug 102184

Summary:	Logs flooded with [drm:drm_mode_addfb2 [drm]] messages
Product:	DRI	Reporter:	Meik Neubauer <tech>
Component:	libdrm	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED INVALID	QA Contact:
Severity:	critical
Priority:	medium
Version:	unspecified
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
See Also:	https://bugs.freedesktop.org/show_bug.cgi?id=101998
Whiteboard:
i915 platform:		i915 features:

Description Meik Neubauer 2017-08-12 12:07:20 UTC

Ubuntu 16.04HWE kernel 4.10.0-30
libdrm2 version 2.4.76-1~ubuntu16.04.1
lspci excerpt:
00:02.0 VGA compatible controller: Intel Corporation Device 193d (rev 09)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Amethyst XT [Radeon R9 M295X]



kern.log, syslog and dmesg are flooded with messages like:

[213775.374922] [drm:drm_mode_addfb2 [drm]] [FB:78]
[213775.393105] [drm:drm_mode_addfb2 [drm]] [FB:76]

(always alternating between FB:78 and FB:76)

About 60 such messages per second are issued.
This causes above named log files to grow into Gigabyte range, make them unusable and cause critical disk shortages on the root filesystem.

Please provide a fix or method to stop these messages.

Comment 1 Michel Dänzer 2017-08-14 03:28:49 UTC

This happens because you set drm.debug=0xe on the kernel command line. Just remove that.

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.