linux-kernel - Re: 2.6.18-rt6 and compile fail with rt7 on x86

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Date:	Mon, 23 Oct 2006 21:33:15 +0100
From:	Sergio Monteiro Basto <sergio@...giomb.no-ip.org>
To:	john stultz <johnstul@...ibm.com>
Cc:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	"Paul E. McKenney" <paulmck@...ibm.com>,
	Dipankar Sarma <dipankar@...ibm.com>,
	Arjan van de Ven <arjan@...radead.org>,
	Mike Galbraith <efault@....de>,
	Daniel Walker <dwalker@...sta.com>,
	Manish Lachwani <mlachwani@...sta.com>, bastien.dugue@...l.net,
	Lee Revell <rlrevell@...-job.com>
Subject: Re: 2.6.18-rt6 and compile fail with rt7 on x86_64

On Thu, 2006-10-19 at 17:59 -0700, john stultz wrote:
> On Fri, 2006-10-20 at 01:23 +0100, Sergio Monteiro Basto wrote:
> > I just test rt6 it in my problematic VIA Board with one PENTIUM D (DUAL)
> > 
> > 1. don't apply cleaning to 2.16.18.1 (on sparc arch )
> > 2. I usual boot with notsc (because without it give me many lost time
> > tickets)
> >     I try 2.16.18.1-rt6 without notsc and freeze on boot. 
> >     I try with notsc and says 
> >         Time: acpi_pm clocksource has been installed.
> >         Looks stable and don't show any lost timer ticket on dmesg.
> 
> Out of curiosity, does 2.6.18.1 require notsc (or booting w/
> clocksource=acpi_pm) to be stable? Or is it just -rt6 that has this
> problem?
> 

yes, 2.6.18.1 require notsc to work properly , but without notsc boots
normally but with  many lost timer ticks 
    time.c: Lost 300 timer tick(s)! rip mwait_idle+0x3f/0x54)
    psmouse.c: Wheel Mouse at isa0060/serio1/input0 lost
synchronization, throwing 2 bytes away.
    time.c: Lost 300 timer tick(s)! rip mwait_idle+0x3f/0x54)

booting with clocksource=acpi_pm , don't find/use   acpi_pm
cat /sys/devices/system/clocksource/clocksource0/available_clocksource
jiffies

> > But I want also work with Nvidia dri which is a close drive from NVIDIA.
> > I install that drive and I enable DRI, After a few minutes I got a
> > spontaneous reboot.
> > I will keep testing without nvidia close source.
> > 
> > And I like to know if this rt6 patch make this new clocksource (acpi_pm)
> > or just found it and use it ? 
> 
> -rt6 includes a patch from Thomas Gleixner that disables the TSC if
> dynticks are enabled in your config.

I will try that 

Thanks, 
> 
> thanks
> -john
> 

compiles fails with rt7 
+ KernelImage=arch/x86_64/boot/bzImage
+ make -s ARCH=x86_64 oldconfig
+ make -s ARCH=x86_64 -j2 bzImage
  CHK     include/linux/version.h
  UPD     include/linux/version.h
  CHK     include/linux/utsrelease.h
  SYMLINK include/asm -> include/asm-x86_64
  UPD     include/linux/utsrelease.h
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
kernel/rtmutex.c:938:48: error: macro "rt_release_bkl" passed 2
arguments, but takes just 1
kernel/rtmutex.c: In function 'rt_mutex_slowlock':
kernel/rtmutex.c:938: error: 'rt_release_bkl' undeclared (first use in
this function)
kernel/rtmutex.c:938: error: (Each undeclared identifier is reported
only once
kernel/rtmutex.c:938: error: for each function it appears in.)
make[1]: *** [kernel/rtmutex.o] Error 1
make: *** [kernel] Error 2


thanks 
-- 
Sérgio M.B.

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