Kernel 2.6.24 and UVesaFB

Question

I have recently installed fbsplash from the AUR, and would like to use uvesafb, now included in the vanilla kernel. Now I am wondering why I can't get any higher than 640x480. When I try and put in a line with something else, it is just ignored. DonGiovanni has told me that it has been compiled in as a module and that it may be related to the problem. I don't want to compile my own kernel because it takes much too long. Anyone know how to fix this?

Answer 1

Hello, the problem for me is this: I have kernel26 (2.6.24.1-2) from Core (installed with pacman -S), and i have installed v86d from aur. So my framebuffer works only if i modprobe uvesafb manually after boot, in tty1, for example if i load it in gnome-terminal, it go in Segmentation Fault.
But the problem is that i would put uvesafb in the Initramfs, so i have changed few config's files.
This is my files config:
/lib/initcpio/hooks/uvesafb
run_hook ()
/sbin/modprobe uvesafb
/lib/initcpio/hooks/v86d
run_hook ()
/sbin/v86d
/lib/initcpio/install/v86d
install() {
MODULES=" $(checked_modules "video/uvesafb") "
SCRIPT="v86d"
MODULES=$(echo ${MODULES}) #trim whitespace
if [ -n "${MODULES}" ]; then
MODULES="${MODULES}"
fi
add_dir "/dev"
add_dir "/root"
add_dir "/sbin"
add_device "/dev/console" c 5 1
add_device "/dev/tty1" c 4 1
add_device "/dev/zero" c 1 5
add_device "/dev/mem" c 1 1
add_binary "/sbin/v86d" "/sbin/v86d"
help() {
echo "This hook sets up v86d, the userspace helper for uvesafb."
# vim: set ft=sh ts=4 sw=4 expandtab:
/lib/initcpio/install/uvesafb
# vim: set ft=sh:
install ()
MODULES="uvesafb"
SCRIPT="uvesafb"
help ()
cat<<HELPEOF
This hook loads uvesafb
HELPEOF
/etc/mkinitcpio.conf
# vim:set ft=sh
# MODULES
# The following modules are loaded before any boot hooks are
# run. Advanced users may wish to specify all system modules
# in this array. For instance:
# MODULES="piix ide_disk reiserfs"
MODULES="ata_generic ata_piix piix ide_disk ext3"
# BINARIES
# This setting includes, into the CPIO image, and additional
# binaries a given user may wish. This is run first, so may
# be used to override the actual binaries used in a given hook.
# (Existing files are NOT overwritten is already added)
# BINARIES are dependancy parsed, so you may safely ignore libraries
BINARIES="/sbin/modprobe /sbin/v86d"
# FILES
# This setting is similar to BINARIES above, however, files are added
# as-is and are not parsed in anyway. This is useful for config files.
# Some users may wish to include modprobe.conf for custom module options,
# like so:
# FILES="/etc/modprobe.conf"
FILES="/etc/modprobe.conf"
# HOOKS
# This is the most important setting in this file. The HOOKS control the
# modules and scripts added to the image, and what happens at boot time.
# Order is important, and it is recommended that you do not change the
# order in which HOOKS are added. Run 'mkinitcpio -H <hook name>' for
# help on a given hook.
# 'base' is _required_ unless you know precisely what you are doing.
# 'udev' is _required_ in order to automatically load modules
# 'modload' may be used in place of 'udev', but is not recommended
# 'filesystems' is _required_ unless you specify your fs modules in MODULES
# Examples:
# This setup specifies all modules in the MODULES setting above.
# No raid, lvm2, or encrypted root is needed.
# HOOKS="base"
# This setup will autodetect all modules for your system and should
# work as a sane default
# HOOKS="base udev autodetect ide scsi sata filesystems"
# This setup will generate a 'full' image which supports most systems.
# No autodetection is done.
# HOOKS="base udev ide scsi sata usb filesystems"
# This setup assembles an ide raid array with an encrypted root FS.
# Note: See 'mkinitcpio -H raid' for more information on raid devices.
# HOOKS="base udev ide raid encrypt filesystems"
# This setup loads an lvm2 volume group on a usb device.
# HOOKS="base udev usb lvm2 filesystems"
HOOKS="base udev autodetect v86d uvesafb dsdt ide pata scsi sata usbinput keymap filesystems"
I have already tried to put uvesafb in MODULES, but the result is the same.
/etc/modprobe.conf
options uvesafb mode=1024x768-32
BUT when i run kernel dmesg report me this error:
uvesafb: (C) 1988-2005, ATI Technologies Inc. M26-P01.00, M26-P01.00, 01.00, OEM: ATI ATOMBIOS(C) 1988-2005, ATI Technologies Inc. M26-P01.00, VBE v3.0
uvesafb: protected mode interface info at c000:af46
uvesafb: pmi: set display start = c00cafd4, set palette = c00cb014
uvesafb: VBIOS/hardware supports DDC2 transfers
uvesafb: monitor limits: vf = 60 Hz, hf = 49 kHz, clk = 68 MHz
BUG: unable to handle kernel NULL pointer dereference at virtual address 00000018
printing eip: c025ae53 *pde = 00000000
Oops: 0000 [#1] PREEMPT SMP
Modules linked in: uvesafb cn sr_mod cdrom sd_mod generic pata_acpi ehci_hcd uhci_hcd usbcore ext3 jbd mbcache ide_disk piix ide_core ata_piix ata_generic libata
Pid: 1178, comm: modprobe Not tainted (2.6.24-ARCH #1)
EIP: 0060:[<c025ae53>] EFLAGS: 00010246 CPU: 0
EIP is at fb_try_mode+0x3/0x90
EAX: f7f7f008 EBX: f7f7f008 ECX: 00000010 EDX: f7f7f000
ESI: 00000001 EDI: 00000000 EBP: 00000008 ESP: f744fbe0
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process modprobe (pid: 1178, ti=f744e000 task=f7f9e000 task.ti=f744e000)
Stack: f7411285 c025b918 00000008 00000000 00200200 f7411285 f7f7f000 f7f7f008
00000001 00000001 00000000 00000400 00000300 00000020 000003e8 00000001
00000000 00000000 00000000 00000246 22222222 22222222 22222222 f7fa6a80
Call Trace:
[<c025b918>] fb_find_mode+0x578/0x650
[<f88708d0>] uvesafb_exec+0x130/0x260 [uvesafb]
[<c01808eb>] __kmalloc+0x2b/0x110
[<f88718d2>] uvesafb_probe+0x772/0x1010 [uvesafb]
[<c01252bb>] kunmap_atomic+0x8b/0xd0
[<c012526d>] kunmap_atomic+0x3d/0xd0
[<c0164d47>] get_page_from_freelist+0x297/0x460
[<c0240c0c>] idr_get_empty_slot+0xec/0x280
[<c0240e1b>] ida_get_new_above+0x7b/0x180
[<c01c70f0>] sysfs_ilookup_test+0x0/0x10
[<c01c7784>] sysfs_addrm_finish+0x14/0x1e0
[<c01c7494>] sysfs_add_one+0x44/0xe0
[<c01c756f>] sysfs_addrm_start+0x3f/0xb0
[<c01c82fd>] sysfs_create_link+0x8d/0x120
[<c02ab21c>] platform_drv_probe+0xc/0x10
[<c02a9cd8>] driver_probe_device+0x88/0x190
[<c036a6df>] klist_next+0x5f/0xc0
[<c02a8f84>] bus_for_each_drv+0x44/0x70
[<c02a9e9d>] device_attach+0x7d/0x90
[<c02a9de0>] __device_attach+0x0/0x10
[<c02a8ef5>] bus_attach_device+0x45/0x90
[<c02a7fb8>] device_add+0x428/0x510
[<c02ab5b9>] platform_device_add+0xf9/0x150
[<f887242f>] uvesafb_init+0x5f/0xb0 [uvesafb]
[<c0152236>] sys_init_module+0x126/0x19d0
[<c024294f>] prio_tree_insert+0x1f/0x240
[<c01054e2>] sysenter_past_esp+0x6b/0xa1
[<c0360000>] rpc_pipe_release+0x110/0x140
=======================
Code: 8d 42 d0 3c 09 76 04 89 d8 5b c3 0f be d2 83 c1 01 8d 04 9b 8d 5c 42 d0 eb e3 8d b4 26 00 00 00 00 8d bc 27 00 00 00 00 53 89 c3 <8b> 41 08 89 03 8b 41 0c 89 43 04 8b 41 08 89 43 08 8b 41 0c 83
EIP: [<c025ae53>] fb_try_mode+0x3/0x90 SS:ESP 0068:f744fbe0
---[ end trace f8ce83033d91e116 ]---
So i have tried to recompile klibc, i take it from ABS, modify the PKGBUILD and i have makepkg it, and install it, recompiled the mkinitcpio -p kernel26, But when i restart the kernel, the kernel go in panic with this error:
::Loading Initramfs
-/init: 44: replace: not found
-/init: 44: replace: not found
export: 44: bad variable name
....kernel panic!
the PKGBUILD of klibc is this
# $Id: PKGBUILD,v 1.12 2007/10/31 08:25:30 thomas Exp $
# Maintainer: Aaron Griffin <[email protected]>
# Maintainer: Thomas Baechler <[email protected]>
### NOTE: Do not build this package with anything except gcc - using ccache
### forces others to use it as well as it becomes hardcoded in the klibc
### script.
pkgname=klibc
pkgver=1.5
_klibcbranch=Stable #Stable/Testing
_kver=2.6.24
pkgrel=3
pkgdesc="a minimal libc made for early-userspace"
arch=(i686 x86_64)
url="http://www.kernel.org/pub/linux/libs/klibc/"
license=('BSD')
groups=('base')
options=(!ccache)
source=(http://www.kernel.org/pub/linux/libs/klibc/$_klibcbranch/$pkgname-$pkgver.tar.gz
multiple_raid_assembly_fix.patch
klibc-compile-shared-by-default.patch
klibc-module-init-tools.patch)
md5sums=('d55ce89c0656a7d6896ec0b2af07b5dc'
'8d257d50a4554d57b8f461c6a87a2877'
'c263a7c3fd290fcc84a4e230d456d022'
'4d78311ebce63f2fbb711f8518e71839')
build()
cd $startdir/src/$pkgname-$pkgver
#INI_DEBUG causes ipconfig to fail within kinit
sed -i "/#define INI_DEBUG/d" usr/kinit/kinit.h
ln -sf /usr/src/linux-${_kver} linux
# $Id: PKGBUILD,v 1.12 2007/10/31 08:25:30 thomas Exp $
# Maintainer: Aaron Griffin <[email protected]>
# Maintainer: Thomas Baechler <[email protected]>
### NOTE: Do not build this package with anything except gcc - using ccache
### forces others to use it as well as it becomes hardcoded in the klibc
### script.
pkgname=klibc
pkgver=1.5
_klibcbranch=Stable #Stable/Testing
_kver=2.6.24
pkgrel=3
pkgdesc="a minimal libc made for early-userspace"
arch=(i686 x86_64)
url="http://www.kernel.org/pub/linux/libs/klibc/"
license=('BSD')
groups=('base')
options=(!ccache)
source=(http://www.kernel.org/pub/linux/libs/klibc/$_klibcbranch/$pkgname-$pkgver.tar.gz
multiple_raid_assembly_fix.patch
klibc-compile-shared-by-default.patch
klibc-module-init-tools.patch)
md5sums=('d55ce89c0656a7d6896ec0b2af07b5dc'
'8d257d50a4554d57b8f461c6a87a2877'
'c263a7c3fd290fcc84a4e230d456d022'
'4d78311ebce63f2fbb711f8518e71839')
build()
cd $startdir/src/$pkgname-$pkgver
#INI_DEBUG causes ipconfig to fail within kinit
sed -i "/#define INI_DEBUG/d" usr/kinit/kinit.h
ln -sf /usr/src/linux-${_kver} linux
patch -p1 -i ../multiple_raid_assembly_fix.patch || return 1
# make klibc-module-init-tools compile
# don't build insmod
patch -p1 -i ../klibc-module-init-tools.patch || return 1
# compile binaries shared by default
patch -p1 -i ../klibc-compile-shared-by-default.patch
make EXTRA_KLIBCFLAGS='' || return 1
make INSTALLROOT=$startdir/pkg install
#simplify
mv $startdir/pkg/usr/lib/klibc/bin/sh.shared $startdir/pkg/usr/lib/klibc/bin/sh
rm $startdir/pkg/usr/lib/klibc/bin/mknod
rm $startdir/pkg/usr/lib/klibc/bin/kill
patch -p1 -i ../multiple_raid_assembly_fix.patch || return 1
# make klibc-module-init-tools compile
# don't build insmod
patch -p1 -i ../klibc-module-init-tools.patch || return 1
# compile binaries shared by default
patch -p1 -i ../klibc-compile-shared-by-default.patch
make EXTRA_KLIBCFLAGS='' || return 1
make INSTALLROOT=$startdir/pkg install
#simplify
mv $startdir/pkg/usr/lib/klibc/bin/sh.shared $startdir/pkg/usr/lib/klibc/bin/sh
rm $startdir/pkg/usr/lib/klibc/bin/mknod
rm $startdir/pkg/usr/lib/klibc/bin/kill
Thanks you for any your replay!!