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SubjectRe: [PATCH 0/7] [RFC] Sizing zones and holes in an architecture independent manner V3
On Tue, 18 Apr 2006, Jack Steiner wrote:

> On Tue, Apr 18, 2006 at 02:00:15PM +0100, Mel Gorman wrote:
>> This is V3 of the patchset to size zones and memory holes in an
> ...
>
>
>
> FYI, I applied the patches to a recent kernel & booted on a large
> SGI system.

Very cool, thanks for testing. I'm glad to see the assumptions related to
the size of node_map held up for a large machine.

> No problem aside from what I assume is a very large number
> of debug messages.
>

The debug messages are all in patch 7/7 and will be dropped before I try
and push this to -mm. The patch was included here in case a machine failed
to boot so I could figure out what went wrong.

>
> ------
> Linux version 2.6.17-tony (steiner@attica) (gcc version 4.1.0 (SUSE Linux)) #5 SMP PREEMPT Tue Apr 18 14:01:54 CDT 2006
> EFI v1.10 by INTEL: SALsystab=0x6002c51df0 ACPI 2.0=0x6002c51ee0
> Number of logical nodes in system = 512
> Number of memory chunks in system = 512
> SAL 2.9: SGI SN2 version 1.10
> SAL Platform features: ITC_Drift
> SAL: AP wakeup using external interrupt vector 0x12
> No logical to physical processor mapping available
> ACPI: Local APIC address c0000000fee00000
> ACPI: Error parsing MADT - no IOSAPIC entries
> register_intr: No IOSAPIC for GSI 52
> 512 CPUs available, 512 CPUs total
> MCA related initialization done
> SGI SAL version 1.10
> add_active_range(0, 25168900, 25235456): New
> add_active_range(0, 25236375, 25419776): New
> add_active_range(0, 27262976, 27516927): New
> add_active_range(0, 29360128, 29614080): New
> add_active_range(1, 92277760, 92528640): New
> ...
> add_active_range(511, 34322242024, 34322242047): New
> add_active_range(511, 34322243072, 34322243417): New
> add_active_range(511, 34322243432, 34322243460): New
> add_active_range(511, 34322243488, 34322243500): New
> Virtual mem_map starts at 0xa0007e407d270000
> free_area_init_nodes(68719476736, 68719476736, 34322243584, 34322243584)
> free_area_init_nodes(): find_min_pfn = 25168900
> Dumping sorted node map
> entry 0: 0 25168900 -> 25235456
> entry 1: 0 25236375 -> 25419776
> entry 2: 0 27262976 -> 27516927
> entry 3: 0 29360128 -> 29614080
> entry 4: 1 92277760 -> 92528640
> entry 5: 1 94371840 -> 94625792
> entry 6: 1 96468992 -> 96722944
> ...
> entry 1536: 511 34321989632 -> 34322242001
> entry 1537: 511 34322242016 -> 34322242022
> entry 1538: 511 34322242024 -> 34322242047
> entry 1539: 511 34322243072 -> 34322243417
> entry 1540: 511 34322243432 -> 34322243460
> entry 1541: 511 34322243488 -> 34322243500
> __absent_pages_in_range(0, 25168900, 68719476736) = 3687320
> __absent_pages_in_range(0, 68719476736, 68719476736) = 0
> __absent_pages_in_range(0, 68719476736, 34322243584) = 0
> __absent_pages_in_range(0, 34322243584, 34322243584) = 0
> __absent_pages_in_range(0, 25168900, 68719476736) = 3687320
> ...
> __absent_pages_in_range(511, 34322243584, 34322243584) = 0
> __absent_pages_in_range(511, 25168900, 68719476736) = 3687485
> __absent_pages_in_range(511, 68719476736, 68719476736) = 0
> __absent_pages_in_range(511, 68719476736, 34322243584) = 0
> __absent_pages_in_range(511, 34322243584, 34322243584) = 0
> Built 512 zonelists
> Kernel command line: BOOT_IMAGE=net0:jfs/tonys ro hashdist=1 dhash_entries=2097152 ihash_entries=2097152 rhash_entries=2097152 thash_entries=2097152 console=ttySG0,38400n8 kdb=on noprobe root=/dev/sda5
> PID hash table entries: 4096 (order: 12, 32768 bytes)
> Console: colour dummy device 80x25
> Memory: 4639378784k/4655642784k available (7021k code, 16279040k reserved, 4361k data, 736k init)
> (essentially the same numbers as with a kernel w/o the patches)
> McKinley Errata 9 workaround not needed; disabling it
>

--
Mel Gorman
Part-time Phd Student Linux Technology Center
University of Limerick IBM Dublin Software Lab
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