#990216 Xorg crash during testing vnc performance, which contains two x11vnc connections and replay a .h264 video again an again

Package:
xserver-xorg-core
Source:
xorg-server
Description:
Xorg X server - core server
Submitter:
Date:
2021-06-23 07:18:04 UTC
Severity:
normal
#990216#5
Date:
2021-06-23 07:14:13 UTC
From:
To:
root@LOS00187dcf711c:/usr/bin# dpkg --status xserver-xorg-core
Package: xserver-xorg-core
Status: install ok installed
Priority: optional
Section: x11
Installed-Size: 3374
Maintainer: Debian X Strike Force debian-x@lists.debian.org<mailto:debian-x@lists.debian.org>
Architecture: arm64
Source: xorg-server
Version: 2:1.20.4-1
Replaces: xserver-xorg (<< 1:7.7+10~), xserver-xorg-video-modesetting
Provides: xorg-input-abi-24, xorg-video-abi-24, xserver-xorg-video-modesetting
Depends: xserver-common (>= 2:1.20.4-1), keyboard-configuration, udev (>= 149), libegl1-mesa | libegl1, libaudit1 (>= 1:2.2.1), libbsd0 (>= 0.2.0), libc6 (>= 2.17), libdbus-1-3 (>= 1.9.14), libdrm2 (>= 2.4.66), libepoxy0 (>= 1.3), libgbm1 (>= 12.0.0~0), libgcrypt20 (>= 1.7.0), libgl1-mesa-glx | libgl1, libpciaccess0 (>= 0.12.902), libpixman-1-0 (>= 0.30.0), librga2, libselinux1 (>= 2.0.82), libsystemd0, libudev1 (>= 183), libunwind8, libxau6, libxdmcp6, libxfont2 (>= 1:2.0.1), libxshmfence1
Recommends: libgl1-mesa-dri (>= 7.10.2-4), libpam-systemd
Suggests: xfonts-100dpi | xfonts-75dpi, xfonts-scalable
Breaks: libgl1-mesa-dri (<< 18.0.5), systemd (<< 226-4~), xserver-xorg (<< 1:7.7+10~)
Conflicts: xserver-xorg-input-evtouch, xserver-xorg-video-modesetting
Description: Xorg X server - core server
 The Xorg X server is an X server for several architectures and operating
 systems, which is derived from the XFree86 4.x series of X servers.

The Xorg server supports most modern graphics hardware from most vendors,
and supersedes all XFree86 X servers.
More information about X.Org can be found at: URL:https://www.x.org
 This package is built from the X.org xserver module.
Homepage: https://www.x.org/


Scenario:
when I have two x11vnc connections from windows 10 to Debian( with xrdp and x11vnc ):
in the mean while:
I play a video with a script:
#!/bin/bash
while true;
do
mpv 200frames_count.h264 -geometry 300x300+1124+700
done;

and Xorg will somehow crash after several hours of testing, and I have catch core dump with gdb, and put it in attachment.

I am using Debian GNU/Linux 10 (buster), kernel 4.19.161 on Rockchip RK3399 arm board

ldd ¨Cversion
ldd (Debian GLIBC 2.28-10) 2.28
ldd `which ls` | grep libc.so.6
libc.so.6 => /lib/aarch64-linux-gnu/libc.so.6 (0x0000007fa63be000)