[SOLVED] Kernel upgrade to 4.4.6 hangs without logs.

[C5ace]

Kernel upgrade to 4.4.6 hangs without logs.

Tried to upgrade the kernels of my desktop and notebook fron kernel 4.1.12 upgrade to 4.4.6. Both systems freeze during booting with 4.4.6. No dmsg, No messages logs. Previous kernel upgrades always worked smooth as silk.

Using: OpenRC, eudev, Xfce,

Desktop configration:
Genkernel with /etc/genkernel.conf additional options:
MENUCONFIG="yes"
MAKEOPTS="-j5"
MDADM="yes"
MDADM_CONFIG="/etc/mdadm.conf"
DISKLABEL="yes"
KNAME="genkernel-G_ROOT"

Boot: Grub-static
grub.conf:
title PROXY-64 domdadm LABEL=G_ROOT Gentoo Linux 4.4.6-gentoo
root (hd0,0)
kernel /boot/kernel-genkernel-G_ROOT-x86_64-4.4.6-gentoo net.ifnames=0 root=/dev/ram0 domdadm real_root=LABEL=G_ROOT
initrd /boot/initramfs-genkernel-G_ROOT-x86_64-4.4.6-gentoo

No error reported in genkernel.log
------------------

Notebook configration:
Genkernel with /etc/genkernel.conf additional options:
MENUCONFIG="yes"
MAKEOPTS="-j5"
DISKLABEL="yes"
KNAME="genkernel-HP_ROOT"

Boot: Grub-static
grub.conf:
title PROXY-64 domdadm LABEL=HP_ROOT Gentoo Linux 4.4.6-gentoo
root (hd0,0)
kernel /boot/kernel-genkernel-HP_ROOT-x86_64-4.4.6-gentoo net.ifnames=0 root=/dev/ram0 real_root=LABEL=HP_ROOT
initrd /boot/initramfs-genkernel-HP_ROOT-x86_64-4.4.6-gentoo

No error reported in genkernel.log
-------------------

[C5ace]

[SOLVED]
Cause:
/usr/src/linux-4.4.6-gentoo/include/linux/string.h line 117:
'char *strreplace(char *s, char old, char new);' causes compile failure.
"new" is a C++ keyword.

Fix:
Changing to 'char *strreplace(char *s, char oldstr, char newstr);' and rebuilding the kernel and app-emulation/virtualbox and related fixes the problem.

VirtualBox.
VirtualBbox internal runtime and build compilers and assemblers use the kernel sources.

[slamp]

I confirmed this bug and this solution.

I got it when doing
emerge x11-drivers/xf86-video-virtualbox

Cause:
/usr/src/linux-4.4.6-gentoo/include/linux/string.h line 117:42
'char *strreplace(char *s, char old, char new);' causes compile failure.

I applied the same fix as c5ace
Changing to 'char *strreplace(char *s, char oldstr, char newstr);'

I found a reference also here: https://www.virtualbox.org/pipermail/vbox-dev/2015-August/013368.html

[smalldog]