Messages in this thread | | | Date | Fri, 9 May 2008 04:32:26 -0700 (PDT) | From | Martin Knoblauch <> | Subject | Re: 2.6.25.2 - Jiffies/Time jumping back and forth (Regereesion from 2.6.24) |
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------------------------------------------------------ Martin Knoblauch email: k n o b i AT knobisoft DOT de www: http://www.knobisoft.de
----- Original Message ---- > From: Thomas Gleixner <tglx@linutronix.de> > To: Martin Knoblauch <spamtrap@knobisoft.de> > Cc: Gabriel C <nix.or.die@googlemail.com>; Bart Van Assche <bart.vanassche@gmail.com>; linux-kernel@vger.kernel.org; hmh@hmh.eng.br > Sent: Thursday, May 8, 2008 4:13:55 PM > Subject: Re: 2.6.25.2 - Jiffies/Time jumping back and forth (Regereesion from 2.6.24) > > On Thu, 8 May 2008, Martin Knoblauch wrote: > > on two different systems running 2.6.25.2: > > > > ibm x3650(2xDualCore) > > ------------------------------------- > > [root@lpsdm60 ~]# cat > /sys/devices/system/clocksource/clocksource0/available_clocksource > > tsc hpet acpi_pm jiffies > > [root@lpsdm60 ~]# cat > /sys/devices/system/clocksource/clocksource0/current_clocksource > > tsc > > > > HP Proliant DL-380G4 (2xSingleCore) > > ------------------------------------------------------------ > > [root@lpsdm52 ~]# cat > /sys/devices/system/clocksource/clocksource0/available_clocksource > > tsc hpet acpi_pm jiffies > > [root@lpsdm52 ~]# cat > /sys/devices/system/clocksource/clocksource0/current_clocksource > > tsc > > > > and on the DL380G4 running 2.6.24: > > --------------------------------------------------------- > > [root@lpsdm52 ~]# cat > /sys/devices/system/clocksource/clocksource0/available_clocksource > > hpet acpi_pm jiffies tsc > > [root@lpsdm52 ~]# cat > /sys/devices/system/clocksource/clocksource0/current_clocksource > > hpet > > So on 2.6.24 the TSC is declared unstable at some point and 2.6.25 > thinks it works fine. Is this the same kernel config (aside of the 24/25 fuzz) ? > > Thanks, > tglx
Just for documentation, I have opened:
http://bugzilla.kernel.org/show_bug.cgi?id=10656
Cheers Martin
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