[arch-general] Xorg broken after last update

[clemens fischer]

On Sat-2009/08/01-23:58 Lu?s Moreira wrote:

> The last update broke my Xorg, the screen just goesn black and hangs
> there, CTRL+ALT+F1 (etc) doesn't do anything.
>
> I'm using X86_64, *without* [testing].
>
> The updated packages were
>
> kernel26
> nvidia
> xorg-server
> (and some others, less important)
>
> If I change the driver in xorg.conf from nvidia to vesa X works again.

I'm running i686.  The nVIDIA GeForce 6100/nFORCE 430 chipset (AMD64)
exhibits segfaults in xorg-server-1.6.3-1 X(1):

  Backtrace:
  0: /usr/bin/X(xorg_backtrace+0x3b) [0x813177b]
  1: /usr/bin/X(xf86SigHandler+0x9e) [0x80caf6e]
  2: [0xb7f79400]
  3: /usr/lib/libdbus-1.so.3 [0xb7e884c9]
  4: /usr/bin/X [0x80ab683]
  5: /usr/bin/X(WakeupHandler+0x52) [0x8090b42]
  6: /usr/bin/X(WaitForSomething+0x1a2) [0x812f2b2]
  7: /usr/bin/X(Dispatch+0x80) [0x808c530]
  8: /usr/bin/X(main+0x395) [0x8072065]
  9: /lib/libc.so.6(__libc_start_main+0xe6) [0xb7b45a36]
  10: /usr/bin/X [0x8071511]

  Fatal server error:
  Caught signal 11.  Server aborting

This error occurs often, but today another one showed up:

  Backtrace:
  0: /usr/bin/X(xorg_backtrace+0x3b) [0x813177b]
  1: /usr/bin/X(xf86SigHandler+0x9e) [0x80caf6e]
  2: [0xb7f96400]
  3: /usr/lib/libdbus-1.so.3 [0xb7ea54c9]
  4: /usr/bin/X [0x80ab683]
  5: /usr/bin/X(WakeupHandler+0x52) [0x8090b42]
  6: /usr/bin/X(WaitForSomething+0x1a2) [0x812f2b2]
  7: /usr/bin/X(Dispatch+0x80) [0x808c530]
  8: /usr/bin/X(main+0x395) [0x8072065]
  9: /lib/libc.so.6(__libc_start_main+0xe6) [0xb7b62a36]
  10: /usr/bin/X [0x8071511]

  Fatal server error:
  Caught signal 4.  Server aborting

Signal 4 is an illegal instruction.  The log also contained, for the
sigsegv case:

  XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0"
        after 27 requests (26 known processed) with 0 events remaining.
  XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0"
        after 103 requests (103 known processed) with 0 events remaining.
  XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0"
        after 508 requests (508 known processed) with 0 events remaining.
  urxvt: X connection to ':0.0' broken, unable to recover, exiting.
  xinit:  connection to X server lost.

In my case, the error appeared after various intervals of normal
operation, but I think I could provoke it by opening more windows.  As
several components went into the last upgrade, I couldn't tell which one
caused the problem.  The X11-related packages were:


  [2009-08-02 16:04] upgraded hal-info (0.20090414-1 -> 0.20090716-1)
  [2009-08-02 16:04] upgraded inputproto (1.5.0-1 -> 1.5.1-1)
  [2009-08-02 16:05] upgraded kernel26 (2.6.30.2-1 -> 2.6.30.4-1)
  [2009-08-02 16:05] upgraded xcb-proto (1.4-1 -> 1.5-1)
  [2009-08-02 16:05] upgraded libxcb (1.2-1 -> 1.4-1)
  [2009-08-02 16:05] upgraded libx11 (1.2.1-1 -> 1.2.2-1)
  [2009-08-02 16:05] upgraded pciutils (3.1.2-1 -> 3.1.3-1)
  [2009-08-02 16:05] upgraded xcb-util (0.3.4-2 -> 0.3.5-1)
  [2009-08-02 16:05] upgraded xf86-input-evdev (2.2.2-1 -> 2.2.3-1)
  [2009-08-02 16:05] upgraded xorg-server (1.6.2-1 -> 1.6.3-1)

I don't run a customary desktop, just screen(1) in urxvt(1) on Xorg(7),
all applications being ncurses driven.  Doing:

  pacman -U /var/cache/pacman/pkg/xorg-server-1.6.2-1-i686.pkg.tar.gz

fixed it.  BTW:  except for one instance where neither mouse nor
keyboard worked, I was dropped back to the console and didn't loose any
work, because I could resurrect everything with "screen -R".  It is even
possible to experiment within X11, detach that screen and resume it in
the console, switching back and forth between X11-grafix and console.
A wonderful thing, this screen(1) program!

One last thing should be mentioned, though:  a few days ago, with
"xorg-server-1.6.2-1" running, Xorg froze on me, indicating that the
problem might not be caused by the hal-debug-patch mentioned in the
forum.  The more so because I don't have hald(8) running at all, and my
/etc/X11/xorg.conf contains:

  Section "ServerFlags"
      ...
      Option "AutoAddDevices" "False" # stop HAL
      Option "AutoEnableDevices" "false" # stop HAL
  EndSection

The DBUS daemon is up, if that is of interest.


clemens