Bug 25132

Summary:	longhaul : failed to set requested frequency
Product:	Power Management	Reporter:	Mathieu Ruellan (mathieu.ruellan)
Component:	cpufreq	Assignee:	Rafael J. Wysocki (rjw)
Status:	CLOSED INSUFFICIENT_DATA
Severity:	normal	CC:	alan, rafalbilski, rui.zhang
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.32	Subsystem:
Regression:	No	Bisected commit-id:

Description Mathieu Ruellan 2010-12-18 14:52:32 UTC

After a few day (but can be a short time), powernowd or the ondemand governor doesn't work anymore. The cpu frequency can't be changed. I can unload the longhaul module but, after modprobe longhaul fail (not found on my system).
I have to reboot.

/var/log/message:

Dec 18 05:01:09 www -- MARK --
Dec 18 05:21:09 www -- MARK --
Dec 18 05:41:09 www -- MARK --
Dec 18 06:01:09 www -- MARK --
Dec 18 06:02:05 www kernel: [379334.212264] longhaul: Failed to set requested frequency!
Dec 18 06:02:05 www kernel: [379334.212302] longhaul: Enabling "Ignore Revision ID" option.
Dec 18 06:02:06 www kernel: [379334.424201] longhaul: Failed to set requested frequency!
Dec 18 06:02:06 www kernel: [379334.684090] longhaul: Failed to set requested frequency!
Dec 18 06:03:00 www kernel: [379389.008089] longhaul: Failed to set requested frequency!


www:~# lspci
00:00.0 Host bridge: VIA Technologies, Inc. CN333/CN400/PM880 Host Bridge
00:00.1 Host bridge: VIA Technologies, Inc. CN333/CN400/PM880 Host Bridge
00:00.2 Host bridge: VIA Technologies, Inc. CN333/CN400/PM880 CPU Host Bridge
00:00.3 Host bridge: VIA Technologies, Inc. CN333/CN400/PM880 Host Bridge
00:00.4 Host bridge: VIA Technologies, Inc. CN333/CN400/PM880 Host Bridge
00:00.7 Host bridge: VIA Technologies, Inc. CN333/CN400/PM880 Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8237/VX700 PCI Bridge
00:0d.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 8d)
00:0f.0 RAID bus controller: VIA Technologies, Inc. VIA VT6420 SATA RAID Controller (rev 80)
00:0f.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge [KT600/K8T800/K8T890 South]
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 78)
01:00.0 VGA compatible controller: VIA Technologies, Inc. CN400/PM800/PM880/PN800/PN880 [S3 UniChrome Pro] (rev 02)

kernel options:

GRUB_CMDLINE_LINUX="noapic nolapic clocksource=acpi_pm"


www:~# more /proc/cpuinfo 
processor	: 0
vendor_id	: CentaurHauls
cpu family	: 6
model		: 9
model name	: VIA Nehemiah
stepping	: 10
cpu MHz		: 532.000
cache size	: 64 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr cx8 sep mtrr pge cmov pat mmx fxsr sse up rng rng_en ace ace_en
bogomips	: 1066.67
clflush size	: 32
cache_alignment	: 32
address sizes	: 32 bits physical, 32 bits virtual
power management:

Contact me if you need more details.

Best regards,

Mathieu Ruellan

Comment 1 Zhang Rui 2012-01-18 02:29:03 UTC

It's great that kernel bugzilla is back.

can you please verify if the problem still exists in the latest upstream
kernel?

Comment 2 Zhang Rui 2012-05-24 07:51:03 UTC

bug closed as there is no response from the bug reporter.
please feel free to reopen it if the problem still exists in the latest upstream kernel.