![]() | ||||||||||
Messages in this thread |
On Fri, Oct 07, 2005 at 02:31:46PM +0200, Andi Kleen wrote: > On Friday 07 October 2005 14:26, Vladimir B. Savkin wrote: > > On Mon, Sep 19, 2005 at 12:16:43PM -0700, john stultz wrote: > > > Andrew, > > > This patch should resolve the issue seen in bugme bug #5105, where it > > > is assumed that dualcore x86_64 systems have synced TSCs. This is not > > > the case, and alternate timesources should be used instead. > > > > > > For more details, see: > > > http://bugzilla.kernel.org/show_bug.cgi?id=5105 > > > > I too have a box that shows the symptoms from bugzilla entry above. > > The system is Asus A8V Deluxe MB with > > "AMD Athlon(tm) 64 X2 Dual Core Processor 3800+". > > > > The patch below did not fix the problem, while "idle=poll" did. > > Hope this helps, dmesg attached. > > Are you running the latest BIOS? Just upgraded to the lastest BIOS (revision 1014), nothing changed. Only with "idle=poll" timers run normally. > > > > Please consider for inclusion in your tree. > > > > > > thanks > > > -john > > > > > > diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c > > > --- a/arch/x86_64/kernel/time.c > > > +++ b/arch/x86_64/kernel/time.c > > > @@ -959,9 +959,6 @@ static __init int unsynchronized_tsc(voi > > > are handled in the OEM check above. */ > > > if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) > > > return 0; > > > - /* All in a single socket - should be synchronized */ > > > - if (cpus_weight(cpu_core_map[0]) == num_online_cpus()) > > > - return 0; > > > #endif > > > /* Assume multi socket systems are not synchronized */ > > > return num_online_cpus() > 1; > > > > ~ ~ :wq With best regards, Vladimir Savkin. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | |||||||||
| Last update: 2005-10-08 08:15 [W:0.200 / U:0.080 seconds] ©2003-2008 Jasper Spaans | ||||||||||