Bug#280079: gnome-cpufreq-applet: selector doesnt work

[Andreas Leitner]

Package: gnome-cpufreq-applet
Version: 0.3.1-2
Severity: important

The readme tells me, there is now a selector available. When I click on the applet I should be able to select a custom cpu frequency. Here on my machine no such menu appears, but the regular monitoring works just fine.

I then tried to use the cpufreq-selector manually, both as regular user and root; it segfaults.

I am using the userspace governor on a 2.6.5 kernel on a Pentium M. I ran cpufreq-selector via strace and I think it uncovers the problem:

#strace cpufreq-selector -f 10
[...]
access("/sys/devices/system/cpu/cpu0/cpufreq", F_OK) = 0
open("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40001000
read(3, "1700000\n", 4096)              = 8
close(3)                                = 0
munmap(0x40001000, 4096)                = 0
open("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40001000
read(3, "600000\n", 4096)               = 7
close(3)                                = 0
munmap(0x40001000, 4096)                = 0
open("/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies", O_RDONLY) = -1 ENOENT (No such file or directory)
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++


So, it looks like the app is looking for the file scaling_available_frequencies, which does not exist on my host. I have no idea if it should be there ...

The cpufreq kernel options look like this:

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_PROC_INTF is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=m
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=y
# CONFIG_CPU_FREQ_24_API is not set
CONFIG_CPU_FREQ_TABLE=y

#
# CPUFreq processor drivers
#
CONFIG_X86_ACPI_CPUFREQ=m
# CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
# CONFIG_X86_POWERNOW_K6 is not set
# CONFIG_X86_POWERNOW_K7 is not set
# CONFIG_X86_POWERNOW_K8 is not set
# CONFIG_X86_GX_SUSPMOD is not set
CONFIG_X86_SPEEDSTEP_CENTRINO=m
# CONFIG_X86_SPEEDSTEP_ICH is not set
# CONFIG_X86_SPEEDSTEP_SMI is not set
# CONFIG_X86_P4_CLOCKMOD is not set
# CONFIG_X86_LONGRUN is not set
# CONFIG_X86_LONGHAUL is not set


-- System Information:
Debian Release: 3.1
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.5
Locale: LANG=C, LC_CTYPE=C

Versions of packages gnome-cpufreq-applet depends on:
ii  debconf [debconf-2.0]     1.4.30         Debian configuration management sy
ii  gconf2                    2.8.1-1        GNOME configuration database syste
ii  libart-2.0-2              2.3.16-6       Library of functions for 2D graphi
ii  libatk1.0-0               1.8.0-2        The ATK accessibility toolkit
ii  libbonobo2-0              2.8.0-1        Bonobo CORBA interfaces library
ii  libbonoboui2-0            2.8.0-1        The Bonobo UI library
ii  libc6                     2.3.2.ds1-13   GNU C Library: Shared libraries an
ii  libgconf2-4               2.8.1-1        GNOME configuration database syste
ii  libglade2-0               1:2.4.0-1      Library to load .glade files at ru
ii  libglib2.0-0              2.4.7-1        The GLib library of C routines
ii  libgnome2-0               2.8.0-1        The GNOME 2 library - runtime file
ii  libgnomecanvas2-0         2.7.1-1        A powerful object-oriented display
ii  libgnomeui-0              2.8.0-1        The GNOME 2 libraries (User Interf
ii  libgnomevfs2-0            2.8.1-1        The GNOME virtual file-system libr
ii  libgtk2.0-0               2.4.9-1        The GTK+ graphical user interface 
ii  libice6                   4.3.0-3        Inter-Client Exchange library
ii  liborbit2                 1:2.10.0-0.1   libraries for ORBit2 - a CORBA ORB
ii  libpanel-applet2-0        2.8.1-1        Library for GNOME 2 Panel applets
ii  libpango1.0-0             1.6.0-1        Layout and rendering of internatio
ii  libpopt0                  1.7-4          lib for parsing cmdline parameters
ii  libsm6                    4.3.0-3        X Window System Session Management
ii  libxml2                   2.6.11-1       GNOME XML library
ii  xlibs                     4.3.0.dfsg.1-6 X Window System client libraries m
ii  zlib1g                    1:1.2.1.1-5    compression library - runtime

-- debconf information:
* gnome-cpufreq-applet/SUID_bit: true


many thanks in advance,
Andreas