Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I found so far | KernelTrap

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I found so far

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From: Ingo Molnar

Subject: Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I found so far

Date: Sunday, December 30, 2007 - 7:53 am

* Mike Galbraith <efault@gmx.de> wrote:

quoted text> > Is this after resume ? If yes, then something (probably BIOS) is 
> > fiddling with the TSC of one CPU when the resume happens.
> 
> My P4 box has the same "problem", which is remedied by..

quoted text> -	start = get_cycles_sync();
> +	start = last_tsc = get_cycles_sync();

this is slightly racy - your second patch that initializes things 
properly is the right solution IMO. I'm wondering, if others are seeing 
this too, should we make this a v2.6.24 item? It's a bit late for that i 
think - although it shouldnt hurt.

	Ingo
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Messages in current thread:

[BUG] 2.6.21-rc1,2,3 regressions on my system that I found ..., Maxim Levitsky, (Fri Mar 16, 3:30 am)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Len Brown, (Fri Mar 16, 4:19 pm)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Thomas Gleixner, (Fri Mar 16, 4:39 pm)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Thomas Gleixner, (Fri Mar 16, 4:44 pm)

[PATCH] i386: trust the PM-Timer calibration of the local ..., Thomas Gleixner, (Fri Mar 16, 5:04 pm)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Len Brown, (Fri Mar 16, 6:32 pm)

Re: [PATCH] i386: trust the PM-Timer calibration of the lo ..., Ingo Molnar, (Sat Mar 17, 12:22 am)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Thomas Gleixner, (Sat Mar 17, 2:56 am)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Arjan van de Ven, (Sat Mar 17, 3:32 am)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Thomas Gleixner, (Sat Mar 17, 4:05 am)

Re: [PATCH] i386: trust the PM-Timer calibration of the lo ..., Andi Kleen, (Sat Mar 17, 6:24 am)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Andi Kleen, (Sat Mar 17, 6:26 am)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Thomas Gleixner, (Sat Mar 17, 9:52 am)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Maxim, (Sat Mar 17, 3:45 pm)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Maxim, (Sat Mar 17, 4:00 pm)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Maxim, (Sat Mar 17, 4:01 pm)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Thomas Gleixner, (Sat Mar 17, 4:32 pm)

Re: [PATCH] i386: trust the PM-Timer calibration of the lo ..., Andrew Morton, (Sun Mar 18, 1:12 am)

Re: [PATCH] i386: trust the PM-Timer calibration of the lo ..., Thomas Gleixner, (Sun Mar 18, 1:45 am)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Greg KH, (Mon Mar 19, 9:27 pm)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Lee Revell, (Mon Mar 19, 10:04 pm)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Eric St-Laurent, (Mon Mar 19, 10:36 pm)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Thomas Gleixner, (Mon Mar 19, 11:30 pm)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Arjan van de Ven, (Tue Mar 20, 2:14 am)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Arjan van de Ven, (Tue Mar 20, 2:15 am)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Andi Kleen, (Tue Mar 20, 4:36 am)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Oliver Neukum, (Tue Mar 20, 4:41 am)

sysfs ugly timer interface (was Re: [BUG] 2.6.21-rc1,2,3 r ..., Pavel Machek, (Tue Mar 20, 4:54 am)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Andy Lutomirski, (Tue Mar 20, 11:04 am)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Eric St-Laurent, (Tue Mar 20, 3:58 pm)

Re: sysfs ugly timer interface (was Re: [BUG] 2.6.21-rc1,2 ..., Greg KH, (Thu Mar 22, 8:28 am)

Re: sysfs ugly timer interface (was Re: [BUG] 2.6.21-rc1,2 ..., Thomas Gleixner, (Thu Mar 22, 8:41 am)

Re: sysfs q [was: sysfs ugly timer interface], Jan Engelhardt, (Thu Mar 22, 6:24 pm)

Re: sysfs q [was: sysfs ugly timer interface], Greg KH, (Thu Mar 22, 9:48 pm)

Re: sysfs q [was: sysfs ugly timer interface], Jan Engelhardt, (Thu Mar 22, 11:05 pm)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Mike Galbraith, (Sun Dec 30, 12:50 am)

Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I f ..., Ingo Molnar, (Sun Dec 30, 7:53 am)