Hi folks,
After a long break, I'm trying to update the kernel on my ia64 HP zx2000.
Config file is attached. Two issues with kernel.org 2.6.23:
1) Can't build with NUMA=n and DISCONTIG=y.
Build quickly dies with NODE_DATA being undefined.
I tried to "work around" it with two changes:
a) include <asm/nodedata.h> from asm/mmzone.h. Not the other way around!
No one includes asm/nodedata.h (except processor.h).
Everyone includes linux/mmzone.h (which includes asm/mmzone.h).
That needs to include nodedata.h to provide NODE_DATA.
The few arches I checked define NODE_DATA in their asm/mmzone.h.
b) added defined(CONFIG_NEED_MULTIPLE_NODES) to a few places that
check CONFIG_NUMA so NODE_DATA would get properly defined.
e.g. asm/processor.h for
#if defined(CONFIG_NUMA) || defined(CONFIG_NEED_MULTIPLE_NODES)
struct ia64_node_data *node_data;
#endif
I decided this wasn't meant to be when node_cpuid was not defined.
Forcing CONFIG_NUMA when DISCONTIG was enabled got me alot further:
--- linux-2.6.23/arch/ia64/Kconfig-ORIG 2007-10-09 13:31:38.000000000 -0700
+++ linux-2.6.23/arch/ia64/Kconfig 2007-10-09 22:51:19.000000000 -0700
@@ -101,6 +101,7 @@
config IA64_GENERIC
bool "generic"
select NUMA
+ select NEED_MULTIPLE_NODES
select ACPI_NUMA
select SWIOTLB
help
@@ -358,6 +359,7 @@
depends on !IA64_HP_SIM && !FLATMEM
default y if IA64_SGI_SN2
select ACPI_NUMA if ACPI
+ select NEED_MULTIPLE_NODES
help
Say Y to compile the kernel to support NUMA (Non-Uniform Memory
Access). This option is for configuring high-end multiprocessor
2) But I'm getting this error:
CC [M] drivers/char/ipmi/ipmi_si_intf.o
drivers/char/ipmi/ipmi_si_intf.c:1095: error: __param_hotmod causes a section type conflict
make[3]: *** [drivers/char/ipmi/ipmi_si_intf.o] Error 1
I've no idea what's going on here. config file is attached.
Lastly, I've failed to boot with a 2.6.22-2-mckinley on my zx2000.
But I suspect it's failing because I don't have "noasync" and will
retry with that. (This zx2000 has u320 SCSI card for it's internal disks.)
thanks,
grant
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