OK, I have made some progress on this:
The busid reported by libdrm on the arm64 system is "0007:a1:00.0"
The busid reported by libdrm on a amd64 system is "pci:0000:00:02.0"
The "pci:" prefix is missing on arm64. I think this leads to the
segfault on arm64 as X tests for the prefix.
This little C program below extracts the information and demonstrates
the difference.
I will follow up why this is happening.
Regards,
Daniel
#include <xf86drm.h>
#include <unistd.h>
#include "stdio.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
int main() {
char *path="/dev/dri/card0";
drmSetVersion sv;
char *buf;
int fd;
int err = 0;
fd = open(path, O_RDWR, O_CLOEXEC);
sv.drm_di_major = 1;
sv.drm_di_minor = 4;
sv.drm_dd_major = -1; /* Don't care */
sv.drm_dd_minor = -1; /* Don't care */
err = drmSetInterfaceVersion(fd, &sv);
buf = drmGetBusid(fd);
printf("busid: '%s'\n", buf);
drmFreeBusid(buf);
close(fd);
return (err == 0);
}
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1691991
Title:
Xorg Segmentation fault on Hisilicon D05 board (arm64)
Status in xorg package in Ubuntu:
New
Bug description:
ubuntu@ubuntu:~$ sudo /usr/lib/xorg/Xorg
[sudo] password for ubuntu:
X.Org X Server 1.18.4
Release Date: 2016-07-19
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.4.0-45-generic aarch64 Ubuntu
Current Operating System: Linux ubuntu 4.10.0-20.22-generic
#22+pearl.2-Ubuntu SMP Thu Apr 27 20:23:08 UTC 2017 aarch64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.10.0-20.22-generic
root=UUID=eee681c5-04ce-4cd0-a004-cae6717961ce ro debug
earlycon=pl011,mmio,0x602B0000 console=tty0
Build Date: 02 November 2016 10:05:28PM
xorg-server 2:1.18.4-0ubuntu0.2 (For technical support please see
http://www.ubuntu.com/support)
Current version of pixman: 0.33.6
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Fri May 19 18:10:13 2017
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
pci id for fd 10: 19e5:1711, driver (null)
EGL_MESA_drm_image required.
(EE)
(EE) Backtrace:
(EE) 0: /usr/lib/xorg/Xorg (xorg_backtrace+0x58) [0xaaaad7f1cc48]
(EE)
(EE) Segmentation fault at address 0xa0
(EE)
Fatal server error:
(EE) Caught signal 11 (Segmentation fault). Server aborting
(EE)
(EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
(EE) Please also check the log file at "/var/log/Xorg.0.log" for additional
information.
(EE)
(EE) Server terminated with error (1). Closing log file.
Aborted (core dumped)
ubuntu@ubuntu:~$
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