On Tue, 11 Nov 2003 12:33:18 +0300
"Andrey Borzenkov" <[EMAIL PROTECTED]> wrote:
> I tried allmodconfig which resulted in ~1.2MB bzImage - same as
> 2.4.22-1mdk in your case. You have to add ELF support to it (as it is
> also module in this case) which apparently gives you bare minimum. It
> is likely that some features can be turned off, because allmodconfig
> actually tries to enable everything, either as "m" or as "y" (except
> CPU types support).
>
> Note that I am not even sure if it boots. I had at least one report
> about allmodconfig+devfs that could not mount IDE root but it may be
> due to other problems. Although modular IDE is "officially" not
> working (cf. post-halloween).
So, what should we do ? Built all IDE chipsets in ?
> Brave hearts can experiment with configuration starting from
> allmodconfig to see how much can be removed and how mauch has to be
> added for it to boot at all :)
I've made a diff between our current config file and the allmodules
config files to show what built-ins could be avoided, see the result at
the end of my mail (it's not that long ...)
As you said, ELF should be kept built-in.
Should we modularize IDE, SCSI and AGP support ?
Strangely enough, initrd support can be compiled if ramdisk is disabled
or compiled as module, is it a bug ?
NFS can be compiled as module too.
Should we keep basic networking built-in ? (CONFIG_PACKET for example)
Thanks for the advice Andrey.
Regards.
---
$ diff -u kernel-config-2.6-{,allmod-}i586smp | egrep -A 3"^-.*=y"
-CONFIG_M586=y
+# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
--
-CONFIG_X86_F00F_BUG=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
--
-CONFIG_X86_ALIGNMENT_16=y
+CONFIG_X86_GOOD_APIC=y
CONFIG_X86_INTEL_USERCOPY=y
-# CONFIG_HPET_TIMER is not set
--
-CONFIG_EDD=y
-# CONFIG_NOHIGHMEM is not set
-CONFIG_HIGHMEM4G=y
+CONFIG_EDD=m
+CONFIG_NOHIGHMEM=y
+# CONFIG_HIGHMEM4G is not set
--
-CONFIG_HIGHMEM=y
-CONFIG_HIGHPTE=y
-# CONFIG_MATH_EMULATION is not set
+CONFIG_MATH_EMULATION=y
CONFIG_MTRR=y
--
-CONFIG_ACPI_AC=y
-CONFIG_ACPI_BATTERY=y
-CONFIG_ACPI_BUTTON=y
+CONFIG_ACPI_AC=m
+CONFIG_ACPI_BATTERY=m
+CONFIG_ACPI_BUTTON=m
--
-CONFIG_APM=y
+CONFIG_APM=m
CONFIG_APM_IGNORE_USER_SUSPEND=y
CONFIG_APM_DO_ENABLE=y
--
-CONFIG_CPU_FREQ_TABLE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=m
+CONFIG_CPU_FREQ_24_API=y
+CONFIG_CPU_FREQ_TABLE=m
--
-CONFIG_BINFMT_ELF=y
+CONFIG_BINFMT_ELF=m
CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
--
-CONFIG_PARPORT=y
-CONFIG_PARPORT_PC=y
-CONFIG_PARPORT_PC_CML1=y
+CONFIG_PARPORT=m
+CONFIG_PARPORT_PC=m
+CONFIG_PARPORT_PC_CML1=m
--
-CONFIG_BLK_DEV_FD=y
+CONFIG_BLK_DEV_FD=m
+CONFIG_BLK_DEV_PS2=m
CONFIG_BLK_DEV_XD=m
--
-CONFIG_PARIDE_PARPORT=y
+CONFIG_PARIDE_PARPORT=m
#
--
-CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM=m
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_INITRD=y
--
-CONFIG_IDE=y
-CONFIG_BLK_DEV_IDE=y
+CONFIG_IDE=m
+CONFIG_BLK_DEV_IDE=m
--
-CONFIG_BLK_DEV_IDEDISK=y
+CONFIG_BLK_DEV_HD_IDE=y
+CONFIG_BLK_DEV_IDEDISK=m
CONFIG_IDEDISK_MULTI_MODE=y
--
-CONFIG_SCSI=y
+CONFIG_SCSI=m
CONFIG_SCSI_PROC_FS=y
--
-CONFIG_BLK_DEV_MD=y
+CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
--
-CONFIG_PACKET=y
+CONFIG_PACKET=m
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK_DEV=m
-CONFIG_UNIX=y
+CONFIG_UNIX=m
CONFIG_NET_KEY=m
CONFIG_INET=y
--
-CONFIG_ATM=y
-CONFIG_ATM_CLIP=y
-# CONFIG_ATM_CLIP_NO_ICMP is not set
+CONFIG_ATM=m
+CONFIG_ATM_CLIP=m
--
-CONFIG_INPUT_MOUSEDEV=y
+CONFIG_INPUT_MOUSEDEV=m
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
--
-CONFIG_SERIO=y
-CONFIG_SERIO_I8042=y
+CONFIG_SERIO=m
+CONFIG_SERIO_I8042=m
CONFIG_SERIO_SERPORT=m
--
-CONFIG_KEYBOARD_ATKBD=y
+CONFIG_KEYBOARD_ATKBD=m
CONFIG_KEYBOARD_SUNKBD=m
CONFIG_KEYBOARD_XTKBD=m
--
-CONFIG_MOUSE_PS2=y
+CONFIG_MOUSE_PS2=m
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_SERIAL=m
--
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250=m
CONFIG_SERIAL_8250_CS=m
CONFIG_SERIAL_8250_ACPI=y
--
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_SERIAL_CORE=m
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
--
-CONFIG_AGP=y
-CONFIG_AGP_ALI=y
+CONFIG_AGP=m
+CONFIG_AGP_ALI=m
CONFIG_AGP_ATI=m
-CONFIG_AGP_AMD=y
+CONFIG_AGP_AMD=m
CONFIG_AGP_AMD64=m
-CONFIG_AGP_INTEL=y
+CONFIG_AGP_INTEL=m
CONFIG_AGP_NVIDIA=m
-CONFIG_AGP_SIS=y
-CONFIG_AGP_SWORKS=y
-CONFIG_AGP_VIA=y
+CONFIG_AGP_SIS=m
+CONFIG_AGP_SWORKS=m
+CONFIG_AGP_VIA=m
--
-CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS=m
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
--
-CONFIG_FS_MBCACHE=y
+CONFIG_JBD_DEBUG=y
+CONFIG_FS_MBCACHE=m
CONFIG_REISERFS_FS=m
--
-CONFIG_QFMT_V2=y
+CONFIG_QFMT_V2=m
CONFIG_QUOTACTL=y
CONFIG_AUTOFS_FS=m
--
-CONFIG_NFS_FS=y
+CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
CONFIG_NFS_V4=y
--
-CONFIG_NFSD=y
+CONFIG_NFSD=m
CONFIG_NFSD_V3=y
CONFIG_NFSD_V4=y
--
-CONFIG_LOCKD=y
+CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
-CONFIG_EXPORTFS=y
-CONFIG_SUNRPC=y
+CONFIG_EXPORTFS=m
+CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
--
Olivier Blin
