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From: "Jike Song" <albcamus@gmail.com>
To: Chr <chunkeey@web.de>
Cc: "Linux Kernel" <linux-kernel@vger.kernel.org>,
	venkatesh.pallipadi@intel.com, "Ingo Molnar" <mingo@elte.hu>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	len.brown@intel.com
Subject: Re: endless loop in native_flush_tlb_others in smp_64.c
Date: Tue, 11 Mar 2008 17:55:40 +0800	[thread overview]
Message-ID: <df9815e70803110255s1c8323a8xf05b132ecc406bd0@mail.gmail.com> (raw)
In-Reply-To: <200803102316.54457.chunkeey@web.de>

CC added

On Tue, Mar 11, 2008 at 6:16 AM, Chr <chunkeey@web.de> wrote:
> Hi,
Hi Chr,
>
>  ever since I moved to 2.6.25-rcY (Y should be between 2 and 5!).
>  I've seen several, but really hard-to-catch instant freezes on my
>  AMD64 Athlon X2 4200+ system...

Here I guess 2.6.24 is fine for you?

>
>  Most of them happend in X.org so at first I thought it had something to do
>  with the NVIDIA module... BUT, one time it froze "a way before" the module
>  could get loaded (and desynced my raid.......).
>
>  ---
>  SYSRQ-P revealed that the CPU were looping inside:
>
>  smp_64.c native_flush_tlb_others:
>  assembler code:
>  < 1ee:   f3 90                   pause
>  < 1f0:   f6 45 00 03             testb  $0x3,0x0(%rbp)
>  < 1f4:   75 f8                   jne    1ee <native_flush_tlb_others+0x5f>
>
>  also known as: (in C)
>
>  while (!cpus_empty(f->flush_cpumask))
>         cpu_relax();
>
>  So... has anyone a good idea what's happening here exactly? Or is there
>  already another topic or even a patch available?
>
>  Regards,
>         Chr.
>  --

Would you please attach your config file?  Do you have CONFIG_CPU_IDLE set?

Regards,

  reply	other threads:[~2008-03-11  9:55 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-10 22:16 Chr
2008-03-11  9:55 ` Jike Song [this message]
2008-03-11 10:30   ` Chr
2008-03-11 14:01     ` Pallipadi, Venkatesh
2008-03-11 21:43       ` Chr
2008-03-11 11:09   ` Thomas Gleixner

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