Re: [systemd-devel] xorg uses 100% CPU after upgrading to 226
Hi On Mon, Sep 28, 2015 at 4:56 AM, Jin Liu wrote: [...] > I tried to start X the usual way - as root, via sddm display manager. It > works fine. Seems the problem only happens when X is running as normal user. > Any directions to investigate? TBH, it sounds like an Xorg problem. Sure, it might be triggered by a slightly different DBus behavior on the systemd side, but that doesn't necessarily mean it's a bug in systemd. I have no idea why your Xserver loops, I don't know the codebase very well. It looks like your xserver never dispatches the DBus FD, but I cannot tell you why. David ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
Re: [systemd-devel] xorg uses 100% CPU after upgrading to 226
On Wed, Sep 23, 2015 at 2:57 PM Jin Liu wrote:
> According to strace -p, xorg is spinning on a select(), which always
> return the same fd #6, which seems related to the system dbus:
>
>
> $ pgrep Xorg
> 614
> $ strace -p 614
> Process 614 attached
> select(256, [1 3 5 6 8 10 19 23 25 29 36 37 38 39 40 41], NULL, NULL,
> {214, 537000}) = 1 (in [6], left {214, 536993})
> select(256, [1 3 5 6 8 10 19 23 25 29 36 37 38 39 40 41], NULL, NULL,
> {214, 537000}) = 1 (in [6], left {214, 536995})
> select(256, [1 3 5 6 8 10 19 23 25 29 36 37 38 39 40 41], NULL, NULL,
> {214, 537000}) = 1 (in [6], left {214, 536995})
> select(256, [1 3 5 6 8 10 19 23 25 29 36 37 38 39 40 41], NULL, NULL,
> {214, 537000}) = 1 (in [6], left {214, 536995})
> select(256, [1 3 5 6 8 10 19 23 25 29 36 37 38 39 40 41], NULL, NULL,
> {214, 537000}) = 1 (in [6], left {214, 536996})
> select(256, [1 3 5 6 8 10 19 23 25 29 36 37 38 39 40 41], NULL, NULL,
> {214, 536000}) = 1 (in [6], left {214, 535996})
> select(256, [1 3 5 6 8 10 19 23 25 29 36 37 38 39 40 41], NULL, NULL,
> {214, 536000}) = 1 (in [6], left {214, 535996})
> ^C
> $ gdb -p 614
> GNU gdb (GDB) 7.10
> Copyright (C) 2015 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <
> http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law. Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "x86_64-unknown-linux-gnu".
> Type "show configuration" for configuration details.
> For bug reporting instructions, please see:
>
Re: [systemd-devel] xorg uses 100% CPU after upgrading to 226
According to strace -p, xorg is spinning on a select(), which always return
the same fd #6, which seems related to the system dbus:
$ pgrep Xorg
614
$ strace -p 614
Process 614 attached
select(256, [1 3 5 6 8 10 19 23 25 29 36 37 38 39 40 41], NULL, NULL, {214,
537000}) = 1 (in [6], left {214, 536993})
select(256, [1 3 5 6 8 10 19 23 25 29 36 37 38 39 40 41], NULL, NULL, {214,
537000}) = 1 (in [6], left {214, 536995})
select(256, [1 3 5 6 8 10 19 23 25 29 36 37 38 39 40 41], NULL, NULL, {214,
537000}) = 1 (in [6], left {214, 536995})
select(256, [1 3 5 6 8 10 19 23 25 29 36 37 38 39 40 41], NULL, NULL, {214,
537000}) = 1 (in [6], left {214, 536995})
select(256, [1 3 5 6 8 10 19 23 25 29 36 37 38 39 40 41], NULL, NULL, {214,
537000}) = 1 (in [6], left {214, 536996})
select(256, [1 3 5 6 8 10 19 23 25 29 36 37 38 39 40 41], NULL, NULL, {214,
536000}) = 1 (in [6], left {214, 535996})
select(256, [1 3 5 6 8 10 19 23 25 29 36 37 38 39 40 41], NULL, NULL, {214,
536000}) = 1 (in [6], left {214, 535996})
^C
$ gdb -p 614
GNU gdb (GDB) 7.10
Copyright (C) 2015 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-unknown-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
Re: [systemd-devel] xorg uses 100% CPU after upgrading to 226
Hi On Tue, Sep 22, 2015 at 9:23 PM, Jin Liu wrote: > After upgrading to 226, the Xorg process keeps using 100% CPU. Also, the > "xrandr --dpi 168" command in my .xinitrc no longer works. > > My startx.service and .xinitrc: > > $ systemctl cat startx.service > # /etc/systemd/system/startx.service > [Unit] > Description=Direct X login > After=systemd-user-sessions.service > Conflicts=getty@tty1.service > > [Service] > User=jin > TTYPath=/dev/tty1 > PAMName=login > Environment=DISPLAY=:0 > ExecStart=/usr/bin/bash --login -c "cd; (/usr/lib/xorg-server/Xorg -nolisten > tcp vt1 &); source .xinitrc" > > [Install] > WantedBy=graphical.target > $ cat .xinitrc > #!/bin/sh > # > # ~/.xinitrc > # > # Executed by startx (run your window manager from here) > > export DESKTOP_SESSION="plasma" > > if [ -d /etc/X11/xinit/xinitrc.d ]; then > for f in /etc/X11/xinit/xinitrc.d/*; do >[ -x "$f" ] && . "$f" > done > unset f > fi > > xrandr --dpi 168 > > exec /usr/bin/startkde > > $ > > BTW, if I move the "xrandr --dpi 168" line into /usr/bin/startkde, it works > again (only DPI setting. Xorg still uses 100% CPU). > > What change in version 226 could cause the above problem, and how should I > change the above files to fix it? Thanks. Please run "strace -p " on the offending process or "perf top". Then try to figure out which function is spinning. Thanks David ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
[systemd-devel] xorg uses 100% CPU after upgrading to 226
After upgrading to 226, the Xorg process keeps using 100% CPU. Also, the "xrandr --dpi 168" command in my .xinitrc no longer works. My startx.service and .xinitrc: $ systemctl cat startx.service # /etc/systemd/system/startx.service [Unit] Description=Direct X login After=systemd-user-sessions.service Conflicts=getty@tty1.service [Service] User=jin TTYPath=/dev/tty1 PAMName=login Environment=DISPLAY=:0 ExecStart=/usr/bin/bash --login -c "cd; (/usr/lib/xorg-server/Xorg -nolisten tcp vt1 &); source .xinitrc" [Install] WantedBy=graphical.target $ cat .xinitrc #!/bin/sh # # ~/.xinitrc # # Executed by startx (run your window manager from here) export DESKTOP_SESSION="plasma" if [ -d /etc/X11/xinit/xinitrc.d ]; then for f in /etc/X11/xinit/xinitrc.d/*; do [ -x "$f" ] && . "$f" done unset f fi xrandr --dpi 168 exec /usr/bin/startkde $ BTW, if I move the "xrandr --dpi 168" line into /usr/bin/startkde, it works again (only DPI setting. Xorg still uses 100% CPU). What change in version 226 could cause the above problem, and how should I change the above files to fix it? Thanks. Regards, Jin Liu ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
