Re: git-block patches broken on 2.6.23-mm1 ia64 SN

From: Jens Axboe
Date: Sat Oct 13 2007 - 03:18:35 EST


On Sat, Oct 13 2007, Paul Jackson wrote:
> [Try again, with a Subject this time ...]
>
> The git-block patches in 2.6.23-mm1 freeze my ia64 SN Altix hard on boot.
> Not good (tm).
>
> Something broke between the git-block patch of Sept 26 in 2.6.23-rc8-mm2
> and the git-block patches of Oct 10-11 in 2.6.23-mm1 on my ia64 SN Altix
> system using sn2_defconfig.
>
> Bisecting 2.6.23-mm1 narrows the problem down to the git-block patches:
>
> git-block.patch
> git-block-fixup-1.patch
> git-block-fixup.patch
> git-block-fixup-fix.patch
> git-block-borkages.patch
> git-block-s390-fix.patch
>
> I can boot 2.6.23-rc8-mm2 fine, but I freeze early in boot
> on 2.6.23-mm1, after the following prints on the console:
>
> McKinley Errata 9 workaround not needed; disabling it
> SLUB: Genslabs=26, HWalign=128, Order=0-2, MinObjects=8, CPUs=8, Nodes=1024
> Dentry cache hash table entries: 1048576 (order: 9, 8388608 bytes)
> Inode-cache hash table entries: 524288 (order: 8, 4194304 bytes)
> Mount-cache hash table entries: 1024
> ACPI: Core revision 20070126
> Boot processor id 0x0/0x0
> Brought up 8 CPUs
> Total of 8 processors activated (15564.80 BogoMIPS).
>
> The next output that I -would- have expected, based on successful boots
> without these patches, but never get, is:
>
> net_namespace: 120 bytes
> DMI not present or invalid.
> xor: measuring software checksum speed
> ia64 : 2692.000 MB/sec
> xor: using function: ia64 (2692.000 MB/sec)
> NET: Registered protocol family 16
> ACPI DSDT OEM Rev 0x20101

Can you try with init call debugging, perhaps that'll show where it
stalls? Sounds a bit odd that the block changes would cause a failure so
early in the boot, it hasn't done anything yet. But it could be some
error in the init functions.

--
Jens Axboe

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