Comment # 16 on bug 971907 from Egbert Eich

(In reply to Rick Hunnicutt from comment #15)
> (In reply to Larry Finger from comment #13)
> > I just verified that adding "iomem=relaxed" to the kernel command line
> > allows the standard kernel to boot normally. I will give that workaround to
> > the Forum entry listed by the OP.
> > 
> > If I follow your patch, the essential change is that you are clearing the
> > IORESOURCE_BUSY bit. To me, that seems a lot less ugly than forcing the
> > entire system to relax its protection of /dev/mem.
> > 
> > Please Cc me on any discussions with kernel devs. In the meantime, I will
> > add your patch to the VirtualBox build and get the build started. If a
> > better solution becomes available, I can always replace this one.
> 
> KDE still seems to have a problem with the "iomem=relaxed" parameter added.
> My boot log shows:
> 
> Mar 23 08:17:04 linux-54cy audit[1985]: ANOM_ABEND auid=1023 uid=1023
> gid=100 ses=1 pid=1985 comm="klauncher" exe="/usr/bin/kdeinit5" sig=11
> Mar 23 08:17:04 linux-54cy kernel: show_signal_msg: 330 callbacks suppressed
> Mar 23 08:17:04 linux-54cy kernel: klauncher[1985]: segfault at 9610 ip
> 0000000000009610 sp 00007fffcdfda308 error 14 in kdeinit5[400000+d000]
> Mar 23 08:17:04 linux-54cy audit[1987]: ANOM_ABEND auid=1023 uid=1023
> gid=100 ses=1 pid=1987 comm="kded5" exe="/usr/bin/kdeinit5" sig=11
> Mar 23 08:17:04 linux-54cy kernel: kded5[1987]: segfault at 9610 ip
> 0000000000009610 sp 00007fffcdfd9d18 error 14 in kdeinit5[400000+d000]
> Mar 23 08:17:04 linux-54cy audit[1990]: ANOM_ABEND auid=1023 uid=1023
> gid=100 ses=1 pid=1990 comm="kcminit_startup" exe="/usr/bin/kdeinit5" sig=11
> Mar 23 08:17:04 linux-54cy kernel: kcminit_startup[1990]: segfault at 9610
> ip 0000000000009610 sp 00007fffcdfd9d88 error 14 in kdeinit5[400000+d000]
> Mar 23 08:17:06 linux-54cy systemd-coredump[1986]: Process 1985 (klauncher)
> of user 1023 dumped core.
> Mar 23 08:17:08 linux-54cy systemd-coredump[1993]: Process 1987 (kded5) of
> user 1023 dumped core.
> Mar 23 08:17:08 linux-54cy systemd-coredump[1994]: Process 1990
> (kcminit_startup) of user 1023 dumped core.
> Mar 23 08:17:20 linux-54cy audit[1]: SERVICE_STOP pid=1 uid=0
> auid=4294967295 ses=4294967295 msg='unit=systemd-localed comm="systemd"
> exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
> Mar 23 08:18:39 linux-54cy audit[1656]: USER_AUTH pid=1656 uid=0
> auid=4294967295 ses=4294967295 msg='op=PAM:authentication
> grantors=pam_gnome_keyring,pam_unix acct="root" exe="/bin/login" hostname=?
> addr=? terminal=tty1 res=success'
> 
> and the desktop never comes up

Rick, you have a different problem. One of your KDE processes is dying. Please
open another ticket, add above message and set this to the 'KDE' or 'Plasma 5'
component.