Messages in this thread Patch in this message | | | Date | Tue, 20 Sep 2005 11:24:45 -0700 | From | Marc Perkel <> | Subject | Re: Lost Ticks |
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Yeah - there's a patch for that here:
http://bugzilla.kernel.org/show_bug.cgi?id=5105
I haven't tried it yet but will later when I go to the data center. You might want to try it and let me know if it actually fixed the problem.
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;
Mizery loves company. I'm glad I'm not the only one with this problem.
Scott Lampert wrote:
> I have the exact same problem on a ASUS A8N-SLI Premium board and > Athlon64 4800+ X2 with every BIOS up to 1008-01. Running with notsc > is the only way to get it to work. > > As an aside BIOS version 1008-003 is available for this board however > this one seems to be WAY worse as the board won't even boot. It gets > panics before the boot messages unless you boot with noapic and after > that it gets checksum errors on the RSDP. I'm afraid to see what the > next official BIOS version does. :/ > -Scott > > Frank van Maarseveen wrote: > >> On Sun, Sep 18, 2005 at 09:23:40PM -0700, Marc Perkel wrote: >> >> >>> Got a dual core Athlon 64 X2 on an Asus board using NVidia chipset >>> and getting lost ticks. The software clock of course is totally >>> messed up. I've scanned google for a solution and see others >>> complaining about bad code in the SMM BIOS. I have the latest bios >>> and whatever they need to fix - isn't. >>> >>> So - what do I do to make it work? >>> >> >> >> See http://bugzilla.kernel.org/show_bug.cgi?id=5105 >> >> On the kernel command-line: >> >> x86_64: try "notsc" >> i386: try "clock=pit" >> >> "nosmp" works but isn't fun. >> >> >> > - > 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/
-- Marc Perkel - marc@perkel.com
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