New: Unstable clocksource reported
http://bugzilla.kernel.org/show_bug.cgi?id=8634
Summary: Unstable clocksource reported
Product: Power Management
Version: 2.5
KernelVersion: 2.6.21.5
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: cpufreq
AssignedTo: [email protected]
ReportedBy: [email protected]
Most recent kernel where this bug did not occur: Not known
Distribution: Debian Sid
Hardware Environment: AMD Athlon64 San Diego 4000+
Software Environment: Tickless Timer Support (64bit CPU, but 32bit system) Problem Description:
Every time if I activate the 'ondemand' powersave gorvener, dmesg reports following:
Time: acpi_pm clocksource has been installed.
Clocksource tsc unstable (delta = -245560788 ns)
This thing needs at booting up ~ 2-10 seconds, which is a lot of time, so I think this is a bug.
My kernel config with all my inbuilded powersave features etc. is in attached.
Steps to reproduce:
Just do a "/bin/echo 'ondemand' > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor".
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[Bug 8634] Unstable clocksource reported
http://bugzilla.kernel.org/show_bug.cgi?id=8634
------- Comment #1 from [email protected] 2007-06-15 13:40 ------- Created an attachment (id=11762)
--> (http://bugzilla.kernel.org/attachment.cgi?id=11762&action=view)
My Kernel config
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[Bug 8634] Unstable clocksource reported
In reply to [email protected]http://bugzilla.kernel.org/show_bug.cgi?id=8634
[email protected] changed:
What |Removed |Added
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CC| |[email protected]
------- Comment #2 from [email protected] 2007-06-16 00:08 ------- Some additional infos:
the-me:~# cat /sys/devices/system/clocksource/clocksource0/available_clocksource acpi_pm pit jiffies tsc
the-me:~# cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 55 model name : AMD Athlon(tm) 64 Processor 4000+ stepping : 2 cpu MHz : 1000.000 cache size : 1024 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 pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm ts fid vid ttp bogomips : 2011.84 clflush size : 64
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[Bug 8634] Unstable clocksource reported
In reply to [email protected]http://bugzilla.kernel.org/show_bug.cgi?id=8634
[email protected] changed:
What |Removed |Added
----------------------------------------------------------------------------
CC|[email protected] |[email protected], | |[email protected], | |[email protected] AssignedTo|[email protected] |[email protected] Component|cpufreq |Other Product|Power Management |Timers
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