Messages in this thread | | | Date | Wed, 11 Jan 2006 16:09:37 -0800 | From | Paul Jackson <> | Subject | Re: [PATCH] ia64: change defconfig to NR_CPUS==1024 |
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When I tried to build a 2.6.15-mm2 kernel with NR_CPUS 1024, and turned on some of the LOCK DEBUG options:
1160c1160 < # CONFIG_DEBUG_SLAB is not set --- > CONFIG_DEBUG_SLAB=y 1163,1164c1163,1164 < # CONFIG_DEBUG_SPINLOCK is not set < # CONFIG_DEBUG_SPINLOCK_SLEEP is not set --- > CONFIG_DEBUG_SPINLOCK=y > CONFIG_DEBUG_SPINLOCK_SLEEP=y
then the build failed:
LD .tmp_vmlinux1 arch/ia64/kernel/built-in.o(.init.text+0x68b2): In function `topology_init': arch/ia64/kernel/ivt.S:1465: undefined reference to `__you_cannot_kmalloc_that_much' make: *** [.tmp_vmlinux1] Error 1
Backing off to 512 CPUs built ok.
There are a couple of kmalloc() calls in topology_init(). I didn't try to figure out which one blew up, nor did I try to investigate further.
-- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson <pj@sgi.com> 1.925.600.0401 - 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/
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