After booting a Virtual-Box-64Bit-Gentoo vm the system (dmesg) complains about: ... [ 9.601416] systemd-tmpfile (3313) used greatest stack depth: 13296 bytes left [ 9.804132] vboxvideo: loading out-of-tree module taints kernel. [ 9.804706] vboxvideo: Unknown symbol ttm_bo_mmap (err 0) [ 9.805277] vboxvideo: Unknown symbol ttm_bo_global_release (err 0) [ 9.805891] vboxvideo: Unknown symbol ttm_bo_manager_func (err 0) [ 9.806518] vboxvideo: Unknown symbol ttm_bo_global_init (err 0) [ 9.807091] vboxvideo: Unknown symbol ttm_bo_device_release (err 0) [ 9.807673] vboxvideo: Unknown symbol ttm_bo_kunmap (err 0) [ 9.808245] vboxvideo: Unknown symbol ttm_bo_del_sub_from_lru (err 0) [ 9.808668] vboxvideo: Unknown symbol ttm_bo_device_init (err 0) [ 9.809002] vboxvideo: Unknown symbol ttm_bo_init_mm (err 0) [ 9.809375] vboxvideo: Unknown symbol ttm_bo_dma_acc_size (err 0) [ 9.809742] vboxvideo: Unknown symbol ttm_tt_init (err 0) [ 9.810080] vboxvideo: Unknown symbol ttm_bo_kmap (err 0) [ 9.810432] vboxvideo: Unknown symbol ttm_bo_add_to_lru (err 0) [ 9.810802] vboxvideo: Unknown symbol ttm_bo_unref (err 0) [ 9.811143] vboxvideo: Unknown symbol ttm_mem_global_release (err 0) [ 9.811491] vboxvideo: Unknown symbol ttm_mem_global_init (err 0) [ 9.811863] vboxvideo: Unknown symbol ttm_bo_init (err 0) [ 9.812950] vboxvideo: Unknown symbol ttm_bo_validate (err 0) [ 9.813340] vboxvideo: Unknown symbol ttm_tt_fini (err 0) [ 9.813774] vboxvideo: Unknown symbol ttm_bo_eviction_valuable (err 0) [ 9.919904] e1000 0000:00:03.0 enp0s3: renamed from eth0 [ 9.994171] vgdrvHeartbeatInit: Setting up heartbeat to trigger every 2000 milliseconds [ 9.994775] input: Unspecified device as /devices/pci0000:00/0000:00:04.0/input/input7 [ 9.995655] vboxguest: misc device minor 57, IRQ 20, I/O port d020, MMIO at 00000000f0400000 (size 0x400000) [ 9.996201] vboxguest: Successfully loaded version 5.2.14 (interface 0x00010004) [ 10.297890] IPv6: ADDRCONF(NETDEV_UP): enp0s3: link is not ready [ 10.299720] e1000: enp0s3 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX [ 10.300957] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s3: link becomes ready [ 11.321603] vboxsf: Successfully loaded version 5.2.14 (interface 0x00010004) [ 12.702965] vboxvideo: Unknown symbol ttm_bo_mmap (err 0) [ 12.703404] vboxvideo: Unknown symbol ttm_bo_global_release (err 0) [ 12.703772] vboxvideo: Unknown symbol ttm_bo_manager_func (err 0) [ 12.704355] vboxvideo: Unknown symbol ttm_bo_global_init (err 0) [ 12.704718] vboxvideo: Unknown symbol ttm_bo_device_release (err 0) [ 12.705206] vboxvideo: Unknown symbol ttm_bo_kunmap (err 0) [ 12.705551] vboxvideo: Unknown symbol ttm_bo_del_sub_from_lru (err 0) [ 12.705905] vboxvideo: Unknown symbol ttm_bo_device_init (err 0) [ 12.706377] vboxvideo: Unknown symbol ttm_bo_init_mm (err 0) [ 12.706722] vboxvideo: Unknown symbol ttm_bo_dma_acc_size (err 0) [ 12.707169] vboxvideo: Unknown symbol ttm_tt_init (err 0) [ 12.707506] vboxvideo: Unknown symbol ttm_bo_kmap (err 0) [ 12.707829] vboxvideo: Unknown symbol ttm_bo_add_to_lru (err 0) [ 12.708283] vboxvideo: Unknown symbol ttm_bo_unref (err 0) [ 12.708632] vboxvideo: Unknown symbol ttm_mem_global_release (err 0) [ 12.708962] vboxvideo: Unknown symbol ttm_mem_global_init (err 0) [ 12.709446] vboxvideo: Unknown symbol ttm_bo_init (err 0) [ 12.709760] vboxvideo: Unknown symbol ttm_bo_validate (err 0) [ 12.710154] vboxvideo: Unknown symbol ttm_tt_fini (err 0) [ 12.710462] vboxvideo: Unknown symbol ttm_bo_eviction_valuable (err 0) [ 18.006084] ldconfig (3424) used greatest stack depth: 13200 bytes left [ 18.169362] VBoxService 5.2.14 r123301 (verbosity: 0) linux.amd64 (Jun 29 2018 12:37:51) release log 00:00:00.000662 main Log opened 2018-07-07T10:28:16.657124000Z [ 18.170505] 00:00:00.001870 main OS Product: Linux [ 18.171319] 00:00:00.002671 main OS Release: 4.17.3-gentoo [ 18.172069] 00:00:00.003423 main OS Version: #1 SMP Sun Jul 1 19:16:05 CEST 2018 [ 18.172885] 00:00:00.004235 main Executable: /opt/VBoxGuestAdditions-5.2.14/sbin/VBoxService 00:00:00.004238 main Process ID: 3435 00:00:00.004239 main Package type: LINUX_64BITS_GENERIC [ 18.177555] 00:00:00.008922 main 5.2.14 r123301 started. Verbose level = 0 [ 28.181208] 00:00:10.012462 timesync vgsvcTimeSyncWorker: Radical guest time change: -91 643 212 744 000ns (GuestNow=1 530 867 653 455 531 000 ns GuestLast=1 530 959 296 668 275 000 ns fSetTimeLastLoop=true ) If I try to start X11 there are a lot of problems, starting lightdm fails mostly, I have to restart the vm (Machine -> Reset). If I start twm (startx), I get the usual three xterms, maybe I can start firefox, but after some minutes I can not change the focus to an other window. root@localhost:/root(9)# emerge --info =xf86-video-vboxvideo-1.0.0 Portage 2.3.41 (python 3.5.5-final-0, default/linux/amd64/17.0/systemd, gcc-7.3.0, glibc-2.27-r5, 4.17.3-gentoo x86_64) ================================================================= System Settings ================================================================= System uname: Linux-4.17.3-gentoo-x86_64-Intel-R-_Core-TM-_i7-3630QM_CPU_@_2.40GHz-with-gentoo-2.6 KiB Mem: 4040140 total, 3002104 free KiB Swap: 0 total, 0 free Timestamp of repository gentoo: Thu, 05 Jul 2018 20:00:01 +0000 Head commit of repository gentoo: a75968272fa14056564fa2d2d7532c79d47c45e1 sh bash 4.4_p23 ld GNU ld (Gentoo 2.30 p3) 2.30.0 app-shells/bash: 4.4_p23::gentoo dev-java/java-config: 2.2.0-r4::gentoo dev-lang/perl: 5.26.2::gentoo dev-lang/python: 2.7.15::gentoo, 3.5.5-r1::gentoo dev-util/cmake: 3.11.4::gentoo dev-util/pkgconfig: 0.29.2::gentoo sys-apps/baselayout: 2.6::gentoo sys-apps/sandbox: 2.13::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69-r4::gentoo sys-devel/automake: 1.11.6-r3::gentoo, 1.16.1-r1::gentoo sys-devel/binutils: 2.30-r3::gentoo sys-devel/gcc: 7.3.0-r3::gentoo sys-devel/gcc-config: 1.9.1::gentoo sys-devel/libtool: 2.4.6-r5::gentoo sys-devel/make: 4.2.1-r3::gentoo sys-kernel/linux-headers: 4.17::gentoo (virtual/os-headers) sys-libs/glibc: 2.27-r5::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 sync-rsync-extra-opts: sync-rsync-verify-max-age: 24 sync-rsync-verify-jobs: 1 sync-rsync-verify-metamanifest: no ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-O2 -pipe" DISTDIR="/usr/portage/distfiles" ENV_UNSET="DBUS_SESSION_BUS_ADDRESS DISPLAY PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync multilib-strict news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" USE="X acl alsa amd64 apache2 berkdb bzip2 cairo cdda cddb cli client crypt cups cxx dbus dri eds ffmpeg firefox fortran gdbm gimp git gnome gnome-keyring gpm gstreamer gtk gtk3 iconv icu introspection ipv6 jadetex jpeg jpeg2k latex ldap libtirpc modules mozilla multilib ncurses nfs nls nptl ogg opengl openmp pam pcre png policykit preview-latex pulseaudio python raw readline seccomp sqlite ssl sudo systemd tcpd test tex theora udev udisks unicode vala xattr xetex xorg zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="alias auth_basic authz_groupfile dav dav_fs authn_file auth_digest" CALLIGRA_FEATURES="karbon plan sheets stage words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="libinput keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-6 php7-0" POSTGRES_TARGETS="postgres9_5 postgres10" PYTHON_SINGLE_TARGET="python3_5" PYTHON_TARGETS="python2_7 python3_5" RUBY_TARGETS="ruby23" USERLAND="GNU" VIDEO_CARDS="virtualbox" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS ================================================================= Package Settings ================================================================= x11-drivers/xf86-video-vboxvideo-1.0.0::gentoo was built with the following: USE="" ABI_X86="(64)" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,lazy" root@localhost:/root(14)# zgrep KMS /proc/config.gz CONFIG_DRM_KMS_HELPER=y CONFIG_DRM_KMS_FB_HELPER=y See also: https://forums.gentoo.org/viewtopic-t-1064008-start-0.html .
Later 'dmesg' shows: [ 28.181208] 00:00:10.012462 timesync vgsvcTimeSyncWorker: Radical guest time change: -91 643 212 744 000ns (GuestNow=1 530 867 653 455 531 000 ns GuestLast=1 530 959 296 668 275 000 ns fSetTimeLastLoop=true ) [ 37.512107] Xorg (3615) used greatest stack depth: 13144 bytes left [ 199.652506] emerge (7321) used greatest stack depth: 12912 bytes left [48698.002951] kworker/dying (8903) used greatest stack depth: 12736 bytes left [253233.155602] kworker/dying (23440) used greatest stack depth: 12704 bytes left [258458.555252] INFO: rcu_sched detected stalls on CPUs/tasks: [258458.555267] 1-...!: (1 GPs behind) idle=262/1/4611686018427387904 softirq=2229910/2229911 fqs=0 [258458.555270] (detected by 0, t=22390 jiffies, g=1002152, c=1002151, q=24) [258458.555278] Sending NMI from CPU 0 to CPUs 1: [258459.511473] NMI backtrace for cpu 1 [258459.511478] CPU: 1 PID: 15 Comm: ksoftirqd/1 Tainted: G O 4.17.3-gentoo #1 [258459.511479] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [258459.511485] RIP: 0010:call_function_single_interrupt+0x0/0x20 [258459.511486] RSP: 0000:ffffa5a9406abd48 EFLAGS: 00000097 [258459.511487] RAX: 000000003745008c RBX: ffff95e5b745008c RCX: 00000000fffffffe [258459.511488] RDX: 000000000000d020 RSI: ffffffffc00ec700 RDI: 000000000000008c [258459.511488] RBP: ffff95e6966b2610 R08: ffffa5a9406abe08 R09: ffff95e69fd19c20 [258459.511489] R10: ffffa5a9406abe08 R11: 0000000000000000 R12: ffff95e6966b26d0 [258459.511489] R13: 000000000001f8b7 R14: 0000000077359400 R15: 00000000000007d0 [258459.511491] FS: 0000000000000000(0000) GS:ffff95e69fd00000(0000) knlGS:0000000000000000 [258459.511491] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [258459.511492] CR2: 00007f8063d4e000 CR3: 000000006840a006 CR4: 00000000000606e0 [258459.511495] Call Trace: [258459.511517] RIP: 0010:VbglR0GRPerform+0x32/0x50 [vboxguest] [258459.511517] RSP: 0000:ffffa5a9406abd78 EFLAGS: 00000297 [258459.511522] ? VbglR0GRPerform+0x1a/0x50 [vboxguest] [258459.511525] VBoxGuest_RTTimerCreateEx+0x5d3/0x950 [vboxguest] [258459.511529] ? VBoxGuest_RTTimerCreateEx+0x3e0/0x950 [vboxguest] [258459.511531] ? sort_range+0x20/0x20 [258459.511537] call_timer_fn+0x26/0x120 [258459.511546] run_timer_softirq+0x3df/0x430 [258459.511549] ? __switch_to+0xa2/0x440 [258459.511550] ? sort_range+0x20/0x20 [258459.511552] __do_softirq+0xd9/0x2af [258459.511554] ? sort_range+0x20/0x20 [258459.511556] run_ksoftirqd+0x1f/0x30 [258459.511562] smpboot_thread_fn+0xea/0x160 [258459.511564] kthread+0x10e/0x130 [258459.511566] ? kthread_create_worker_on_cpu+0x70/0x70 [258459.511568] ret_from_fork+0x35/0x40 [258459.511569] Code: 90 66 2e 0f 1f 84 00 00 00 00 00 68 05 ff ff ff e8 a6 f2 ff ff e8 01 04 00 00 e9 6b f3 ff ff 66 90 66 2e 0f 1f 84 00 00 00 00 00 <68> 04 ff ff ff e8 86 f2 ff ff e8 41 06 00 00 e9 4b f3 ff ff 66 [258459.512478] rcu_sched kthread starved for 22390 jiffies! g1002152 c1002151 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0 [258459.512480] RCU grace-period kthread stack dump: [258459.512482] rcu_sched R running task 14840 9 2 0x80000000 [258459.512487] Call Trace: [258459.512492] ? __schedule+0x24c/0x700 [258459.512495] schedule+0x23/0x70 [258459.512497] schedule_timeout+0x174/0x370 [258459.512500] ? __next_timer_interrupt+0xc0/0xc0 [258459.512502] rcu_gp_kthread+0x5ae/0xd40 [258459.512505] ? __schedule+0x254/0x700 [258459.512507] ? call_rcu_sched+0x10/0x10 [258459.512509] kthread+0x10e/0x130 [258459.512511] ? kthread_create_worker_on_cpu+0x70/0x70 [258459.512513] ret_from_fork+0x35/0x40 [258459.517708] ohci-pci 0000:00:06.0: frame counter not updating; disabled [258459.517713] ohci-pci 0000:00:06.0: HC died; cleaning up [258470.052674] usb 2-1: USB disconnect, device number 2 [258491.494925] INFO: rcu_sched detected stalls on CPUs/tasks: [258491.494934] 1-...!: (1 ticks this GP) idle=26a/1/4611686018427387904 softirq=2229922/2229922 fqs=2 [258491.494935] (detected by 0, t=21220 jiffies, g=1002155, c=1002154, q=356) [258491.494939] Sending NMI from CPU 0 to CPUs 1: [258491.494994] NMI backtrace for cpu 1 [258491.494999] CPU: 1 PID: 3443 Comm: vminfo Tainted: G O 4.17.3-gentoo #1 [258491.495000] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [258491.495007] RIP: 0010:interrupt_entry+0xa2/0xc0 [258491.495008] RSP: 0018:ffffa5a94093fb10 EFLAGS: 00000056 [258491.495010] RAX: 0000000037450284 RBX: 0000000000000000 RCX: 0000000000000000 [258491.495021] RDX: 0000000000000000 RSI: ffffffff9220157a RDI: ffffa5a94093fb18 [258491.495023] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [258491.495025] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [258491.495028] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [258491.495032] FS: 00007ff4480af700(0000) GS:ffff95e69fd00000(0000) knlGS:0000000000000000 [258491.495035] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [258491.495038] CR2: 00007ff82aa887a8 CR3: 00000001146cc003 CR4: 00000000000606e0 [258491.495047] Call Trace: [258491.495064] RIP: 0010:VbglR0GRPerform+0x32/0x50 [vboxguest] [258491.495065] RSP: 0018:ffffa5a94093fbc8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [258491.495068] RAX: 0000000037450284 RBX: ffff95e5b7450284 RCX: 00000000fffffffe [258491.495070] RDX: 000000000000d020 RSI: ffffffffc00bc811 RDI: 0000000000000284 [258491.495071] RBP: 0000000000000002 R08: ffffd91800000000 R09: 0000000000000400 [258491.495073] R10: ffff95e70a83afff R11: 000000000000008c R12: 0000000000000040 [258491.495074] R13: 0000000000000000 R14: ffff95e5b7450284 R15: ffffffffc00b9350 [258491.495081] ? apic_timer_interrupt+0xa/0x20 [258491.495087] ? VGDrvNativeISRMousePollEvent+0x1860/0x1ab0 [vboxguest] [258491.495096] ? VbglR0HGCMInternalCall+0x6d1/0xda0 [vboxguest] [258491.495103] ? VbglR0GRPerform+0x1a/0x50 [vboxguest] [258491.495109] VbglR0HGCMInternalCall+0x543/0xda0 [vboxguest] [258491.495115] ? VGDrvNativeISRMousePollEvent+0x1860/0x1ab0 [vboxguest] [258491.495119] ? _cond_resched+0x10/0x40 [258491.495143] ? devinet_ioctl+0x11e/0x690 [258491.495147] ? inet_ioctl+0x17d/0x1a0 [258491.495151] ? __rtnl_unlock+0x20/0x40 [258491.495157] ? __slab_free+0x146/0x300 [258491.495162] ? dev_get_by_name_rcu+0x64/0x80 [258491.495168] VGDrvNativeISRMousePollEvent+0x1426/0x1ab0 [vboxguest] [258491.495174] VGDrvCommonIoCtl+0x3ac/0x1610 [vboxguest] [258491.495180] VBoxGuestIDC+0x76e/0x960 [vboxguest] [258491.495194] do_vfs_ioctl+0x9f/0x610 [258491.495216] ? dput.part.24+0xca/0x110 [258491.495220] ksys_ioctl+0x6b/0x80 [258491.495224] __x64_sys_ioctl+0x11/0x20 [258491.495229] do_syscall_64+0x49/0x100 [258491.495240] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [258491.495243] RIP: 0033:0x7ff44748a177 [258491.495245] RSP: 002b:00007ff4480aebd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [258491.495248] RAX: ffffffffffffffda RBX: 00007ff4480aec20 RCX: 00007ff44748a177 [258491.495249] RDX: 00007ff4480aec20 RSI: 00000000c0685607 RDI: 0000000000000003 [258491.495251] RBP: 00007ff4480aebe0 R08: 000000000000c000 R09: 00007ff4480aed00 [258491.495252] R10: 00000000fffffffe R11: 0000000000000246 R12: 00007ff438008210 [258491.495254] R13: 00007ff4480aed10 R14: 0000000000000400 R15: 0000000000000000 [258491.495256] Code: 54 45 31 e4 41 55 45 31 ed 41 56 45 31 f6 41 57 45 31 ff 56 f6 84 24 90 00 00 00 03 74 00 48 8d 7c 24 08 65 ff 04 25 d4 4c 01 00 <75> 12 65 48 89 3c 25 f8 3f 00 00 65 48 8b 24 25 d8 4c 01 00 57 [258817.378085] INFO: rcu_sched self-detected stall on CPU [258817.378105] INFO: rcu_sched detected stalls on CPUs/tasks: [258817.378113] 0-...!: (1 ticks this GP) idle=a3a/0/1 softirq=2098428/2098428 fqs=0 [258817.378115] (t=26234 jiffies g=1009591 c=1009590 q=22) [258817.378121] 0-...!: (1 ticks this GP) idle=a3a/0/1 softirq=2098428/2098428 fqs=0 [258817.378122] (detected by 1, t=26234 jiffies, g=1009591, c=1009590, q=22) [258817.378126] rcu_sched kthread starved for 26234 jiffies! g1009591 c1009590 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x402 ->cpu=1 [258817.378127] RCU grace-period kthread stack dump: [258817.378129] rcu_sched I [258817.378133] Sending NMI from CPU 1 to CPUs 0: [258817.378134] 14840 9 2 0x80000000 [258817.378136] Call Trace: [258817.378146] ? __schedule+0x24c/0x700 [258817.378159] schedule+0x23/0x70 [258817.378161] schedule_timeout+0x174/0x370 [258817.378298] ? __next_timer_interrupt+0xc0/0xc0 [258817.378300] rcu_gp_kthread+0x5ae/0xd40 [258817.378303] ? __schedule+0x254/0x700 [258817.378305] ? call_rcu_sched+0x10/0x10 [258817.378307] kthread+0x10e/0x130 [258817.378310] ? kthread_create_worker_on_cpu+0x70/0x70 [258817.378312] ret_from_fork+0x35/0x40 [258817.379168] NMI backtrace for cpu 0 [258817.379169] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 4.17.3-gentoo #1 [258817.379169] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [258817.379170] RIP: 0010:kallsyms_lookup+0x80/0xf0 [258817.379170] RSP: 0018:ffff95e69fc03a68 EFLAGS: 00000097 [258817.379171] RAX: 00000000000000c7 RBX: ffff95e69fc03ae9 RCX: 0000000000000007 [258817.379172] RDX: 0000000000000012 RSI: ffff95e69fc03aa8 RDI: ffffffff92761c85 [258817.379172] RBP: ffff95e69fc03a98 R08: 00000000000000c0 R09: ffffffff918cab00 [258817.379173] R10: ffffffff918cab00 R11: ffffffff927238e0 R12: ffffffff918cabbf [258817.379173] R13: ffff95e69fc03aa8 R14: ffff95e69fc03aa0 R15: ffffffff927ed602 [258817.379174] FS: 0000000000000000(0000) GS:ffff95e69fc00000(0000) knlGS:0000000000000000 [258817.379174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [258817.379175] CR2: 00000000028d2168 CR3: 000000006840a001 CR4: 00000000000606f0 [258817.379175] Call Trace: [258817.379176] <IRQ> [258817.379176] ? __next_timer_interrupt+0xc0/0xc0 [258817.379176] __sprint_symbol+0x42/0x100 [258817.379177] symbol_string+0x87/0x90 [258817.379177] ? vsnprintf+0xf2/0x4b0 [258817.379178] ? sprintf+0x51/0x70 [258817.379178] pointer+0x26c/0x3c0 [258817.379178] ? vt_console_print+0x244/0x420 [258817.379179] ? msg_print_text+0x75/0xf0 [258817.379179] vsnprintf+0x253/0x4b0 [258817.379180] vscnprintf+0x9/0x30 [258817.379180] vprintk_emit+0x75/0x3a0 [258817.379181] ? __next_timer_interrupt+0xc0/0xc0 [258817.379181] printk+0x4d/0x69 [258817.379181] ? __module_text_address+0x8/0x50 [258817.379182] ? __next_timer_interrupt+0xc0/0xc0 [258817.379182] ? schedule_timeout+0x11/0x370 [258817.379183] show_trace_log_lvl+0x2fd/0x360 [258817.379183] ? rcu_gp_kthread+0x5ae/0xd40 [258817.379184] sched_show_task+0x109/0x140 [258817.379184] rcu_check_gp_kthread_starvation+0xb5/0xc5 [258817.379184] rcu_check_callbacks+0x617/0x870 [258817.379185] ? tick_sched_do_timer+0x50/0x50 [258817.379185] update_process_times+0x23/0x50 [258817.379186] tick_sched_handle+0x2f/0x40 [258817.379186] tick_sched_timer+0x32/0x70 [258817.379187] __hrtimer_run_queues+0x103/0x280 [258817.379187] hrtimer_interrupt+0xe0/0x240 [258817.379188] ? kvm_clock_get_cycles+0x1a/0x20 [258817.379188] smp_apic_timer_interrupt+0x5d/0x120 [258817.379188] apic_timer_interrupt+0xf/0x20 [258817.379189] </IRQ> [258817.379189] RIP: 0010:native_safe_halt+0x2/0x10 [258817.379190] RSP: 0018:ffffffff92a03e90 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [258817.379191] RAX: ffffffff921f8620 RBX: 0000000000000000 RCX: ffffffff92a49c40 [258817.379191] RDX: ffffffff92a486f8 RSI: 0000000000000000 RDI: 0000eb5f20759fc0 [258817.379192] RBP: 0000000000000000 R08: 000119d0017879be R09: ffff95e69fc05068 [258817.379192] R10: ffffffff92a03df0 R11: 0000000000000000 R12: 0000000000000000 [258817.379193] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [258817.379193] ? __sched_text_end+0x4/0x4 [258817.379194] default_idle+0x15/0xd0 [258817.379194] do_idle+0x1b3/0x250 [258817.379194] cpu_startup_entry+0x6a/0x70 [258817.379195] start_kernel+0x497/0x4b7 [258817.379195] secondary_startup_64+0xa5/0xb0 [258817.379196] Code: e7 4c 89 ee e8 f2 f8 ff ff 48 89 c2 48 c1 ea 08 48 8b 3c d5 b8 8a 7e 92 31 d2 48 81 c7 f8 2f 75 92 25 ff 00 00 00 74 13 0f b6 0f <83> c2 01 48 8d 7c 0f 01 48 63 ca 48 39 c1 72 ed 48 81 ef f8 2f [258817.379219] rcu_sched kthread starved for 26234 jiffies! g1009591 c1009590 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x200 ->cpu=1 [258817.379267] RCU grace-period kthread stack dump: [258817.379269] rcu_sched R14840 9 2 0x80000000 [258817.379274] Call Trace: [258817.379280] ? __schedule+0x24c/0x700 [258817.379284] schedule+0x23/0x70 [258817.379287] schedule_timeout+0x174/0x370 [258817.379290] ? __next_timer_interrupt+0xc0/0xc0 [258817.379293] rcu_gp_kthread+0x5ae/0xd40 [258817.379297] ? __schedule+0x254/0x700 [258817.379299] ? call_rcu_sched+0x10/0x10 [258817.379303] kthread+0x10e/0x130 [258817.379306] ? kthread_create_worker_on_cpu+0x70/0x70 [258817.379309] ret_from_fork+0x35/0x40 [258817.523018] NMI backtrace for cpu 0 [258817.523028] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 4.17.3-gentoo #1 [258817.523030] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [258817.523032] Call Trace: [258817.523036] <IRQ> [258817.523044] dump_stack+0x5c/0x7b [258817.523049] nmi_cpu_backtrace+0xbf/0xd0 [258817.523054] ? lapic_can_unplug_cpu+0xa0/0xa0 [258817.523058] nmi_trigger_cpumask_backtrace+0x82/0xc0 [258817.523062] rcu_dump_cpu_stacks+0x90/0xbe [258817.523066] rcu_check_callbacks+0x61f/0x870 [258817.523070] ? tick_sched_do_timer+0x50/0x50 [258817.523074] update_process_times+0x23/0x50 [258817.523077] tick_sched_handle+0x2f/0x40 [258817.523081] tick_sched_timer+0x32/0x70 [258817.523084] __hrtimer_run_queues+0x103/0x280 [258818.036268] hrtimer_interrupt+0xe0/0x240 [258818.036272] ? kvm_clock_get_cycles+0x1a/0x20 [258818.036276] smp_apic_timer_interrupt+0x5d/0x120 [258818.036279] apic_timer_interrupt+0xf/0x20 [258818.036281] </IRQ> [258818.036283] RIP: 0010:native_safe_halt+0x2/0x10 [258818.036285] RSP: 0018:ffffffff92a03e90 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [258818.036287] RAX: ffffffff921f8620 RBX: 0000000000000000 RCX: ffffffff92a49c40 [258818.036288] RDX: ffffffff92a486f8 RSI: 0000000000000000 RDI: 0000eb5f20759fc0 [258818.036289] RBP: 0000000000000000 R08: 000119d0017879be R09: ffff95e69fc05068 [258818.036291] R10: ffffffff92a03df0 R11: 0000000000000000 R12: 0000000000000000 [258818.036292] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [258818.036294] ? __sched_text_end+0x4/0x4 [258818.036296] default_idle+0x15/0xd0 [258818.036300] do_idle+0x1b3/0x250 [258818.036302] cpu_startup_entry+0x6a/0x70 [258818.036305] start_kernel+0x497/0x4b7 [258818.036308] secondary_startup_64+0xa5/0xb0
Same problems here with an openrc setup and gentoo-sources-4.18.14 The related dmesg output is: [ 4.685326] vboxvideo: loading out-of-tree module taints kernel. [ 4.685384] vboxvideo: Unknown symbol gen_pool_free (err 0) [ 4.685397] vboxvideo: Unknown symbol gen_pool_create (err 0) [ 4.685464] vboxvideo: Unknown symbol gen_pool_dma_alloc (err 0) [ 4.685467] vboxvideo: Unknown symbol gen_pool_destroy (err 0) [ 4.685513] vboxvideo: Unknown symbol gen_pool_add_virt (err 0) [ 4.685533] vboxvideo: Unknown symbol gen_pool_virt_to_phys (err 0)
