Yinghai Lu wrote:
> On Tuesday 05 February 2008 11:10:24 pm Pavel Emelyanov wrote:
>> [snip]
>>
>>>>> What other info from me is required?
>>> boot log please. with the patch and reverting the patch.
>> Here they are (attached).
>> BTW, I found, that the sky2 adapter is broken by this patch as well.
>> To simplify the analysis, here's their diff:
>>
>> --- bad-log 2008-02-06 10:06:40.000000000 +0300
>> +++ good-log 2008-02-06 10:06:40.000000000 +0300
>> @@ -1,4 +1,4 @@
>> -Linux version 2.6.24 ([EMAIL PROTECTED]) (gcc version 4.1.3 20070724
>> (prerelease) (SUSE Linux)) #22 SMP Tue Feb 5 20:09:11 MSK 2008
>> +Linux version 2.6.24 ([EMAIL PROTECTED]) (gcc version 4.1.3 20070724
>> (prerelease) (SUSE Linux)) #23 SMP Wed Feb 6 10:03:53 MSK 2008
>> BIOS-provided physical RAM map:
>> BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
>> BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
>> @@ -19,29 +19,6 @@ Scan SMP from c0000000 for 1024 bytes.
>> Scan SMP from c009fc00 for 1024 bytes.
>> Scan SMP from c00f0000 for 65536 bytes.
>> found SMP MP-table at [c00ff780] 000ff780
>> -***************
>> -**** WARNING: likely BIOS bug
>> -**** MTRRs don't cover all of memory, trimmed 786432 pages
>> -***************
>> -update e820 for mtrr
>> -modified physical RAM map:
>> - modified: 0000000000000000 - 000000000009f800 (usable)
>> - modified: 000000000009f800 - 00000000000a0000 (reserved)
>> - modified: 00000000000e0000 - 0000000000100000 (reserved)
>> - modified: 0000000000100000 - 0000000040000000 (usable)
>> - modified: 0000000040000000 - 00000000bfff0000 (reserved)
>> - modified: 00000000bfff0000 - 00000000bffff000 (ACPI data)
>> - modified: 00000000bffff000 - 00000000c0000000 (ACPI NVS)
>> - modified: 00000000c0000000 - 0000000100000000 (reserved)
>> - modified: 0000000100000000 - 0000000140000000 (usable)
>
> the root cause could be your mtrr last entry for RAM has strange type
>
> please apply the following line to print the mtrr before trimming to current
> linus tree.
OK, here's the dmesg diff:
--- bad-log 2008-02-06 10:01:21.000000000 +0300
+++ bad-log-info 2008-02-06 11:37:51.000000000 +0300
@@ -19,6 +19,14 @@ Scan SMP from c0000000 for 1024 bytes.
Scan SMP from c009fc00 for 1024 bytes.
Scan SMP from c00f0000 for 65536 bytes.
found SMP MP-table at [c00ff780] 000ff780
+i=0 c0000 - 100000 0
+i=1 0 - 100000 6
+i=2 100000 - 140000 6
+i=3 0 - 0 0
+i=4 0 - 0 0
+i=5 0 - 0 0
+i=6 0 - 0 0
+i=7 0 - 0 0
***************
**** WARNING: likely BIOS bug
**** MTRRs don't cover all of memory, trimmed 786432 pages
> Thanks
>
> YH
>
> diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
> index 1e27b69..c0c44e0 100644
> --- a/arch/x86/kernel/cpu/mtrr/main.c
> +++ b/arch/x86/kernel/cpu/mtrr/main.c
> @@ -680,6 +680,7 @@ int __init mtrr_trim_uncached_memory(unsigned long
> end_pfn)
> /* Find highest cached pfn */
> for (i = 0; i < num_var_ranges; i++) {
> mtrr_if->get(i, &base, &size, &type);
> + printk(KERN_INFO "i=%d %lx - %lx %d\n", i, base, base + size,
> type);
> if (type != MTRR_TYPE_WRBACK)
> continue;
> base <<= PAGE_SHIFT;
> --
> To unsubscribe from this list: send the line "unsubscribe netdev" in
> the body of a message to [EMAIL PROTECTED]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
