Hello, I am using a Core 2 Duo E6750 CPU on an intel DG33FB mother board with 4GB Ram, running Debian Lenny.
Since the box has 4 GB ram I compiled a big mem kernel, but the machine is very slow while running big mem kernel. It takes about 37 minutes to compile the intel e1000 driver (e1000-7.6.5.tar.gz) from intel site. But it's performing normally when using a non big mem kernel. The diff of the .config between working and non working is as follows. --- config-nobigmem 2007-10-24 12:51:42.000000000 +0530 +++ config-bigmem 2007-10-24 12:48:56.000000000 +0530 @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit # Linux kernel version: 2.6.23.1 -# Wed Oct 24 12:50:21 2007 +# Tue Oct 23 18:08:30 2007 # CONFIG_X86_32=y CONFIG_GENERIC_TIME=y @@ -189,10 +189,11 @@ CONFIG_DELL_RBU=m CONFIG_DCDBAS=m CONFIG_DMIID=y -CONFIG_NOHIGHMEM=y +# CONFIG_NOHIGHMEM is not set # CONFIG_HIGHMEM4G is not set -# CONFIG_HIGHMEM64G is not set +CONFIG_HIGHMEM64G=y CONFIG_PAGE_OFFSET=0xC0000000 +CONFIG_HIGHMEM=y CONFIG_X86_PAE=y CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_SPARSEMEM_ENABLE=y @@ -211,6 +212,7 @@ CONFIG_BOUNCE=y CONFIG_NR_QUICK=1 CONFIG_VIRT_TO_BUS=y +# CONFIG_HIGHPTE is not set # CONFIG_MATH_EMULATION is not set CONFIG_MTRR=y CONFIG_EFI=y @@ -223,11 +225,13 @@ # CONFIG_HZ_1000 is not set CONFIG_HZ=250 CONFIG_KEXEC=y +# CONFIG_CRASH_DUMP is not set CONFIG_PHYSICAL_START=0x100000 # CONFIG_RELOCATABLE is not set CONFIG_PHYSICAL_ALIGN=0x100000 CONFIG_HOTPLUG_CPU=y CONFIG_COMPAT_VDSO=y +CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y # # Power management options (ACPI, APM) @@ -1283,6 +1287,7 @@ CONFIG_I2O=m CONFIG_I2O_LCT_NOTIFY_ON_CHANGES=y CONFIG_I2O_EXT_ADAPTEC=y +CONFIG_I2O_EXT_ADAPTEC_DMA64=y CONFIG_I2O_CONFIG=m CONFIG_I2O_CONFIG_OLD_IOCTL=y CONFIG_I2O_BUS=m @@ -3323,6 +3328,7 @@ # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set +# CONFIG_DEBUG_HIGHMEM is not set CONFIG_DEBUG_BUGVERBOSE=y # CONFIG_DEBUG_INFO is not set # CONFIG_DEBUG_VM is not set I was having this same issue with debian kernel also (2.6.22-2-686), ie stock kernel will work, but big mem is slow. Which is why I tried latest kernel. I am posting the full .config at http://pastebin.ca/747758 dmesg while booting big mem kernel is at http://pastebin.ca/747766 raj - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
