I need help to solve this, i follow many instructions on instaling RHEL 8 on Oracle\VirtualBox, but nothing solved it. I even disabled Server with a GUI instalation. Im very noew at VirtualBox and Linux managing. Still I have big experience with systems.
It happens without any reason at any given moment. Sometimes the system resolve himself and I could get this journalctl output of the problem:
RHEL 8 journalctl:
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May 21 14:18:46 rhel-serverxbr kernel: rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
May 21 14:18:46 rhel-serverxbr kernel: (detected by 0, t=556708 jiffies, g=47497, q=219)
May 21 14:18:46 rhel-serverxbr kernel: rcu: All QSes seen, last rcu_sched kthread activity 556708 (4296124962-4295568254), jiffies_till_next_fq>
May 21 14:18:46 rhel-serverxbr kernel: rcu: rcu_sched kthread starved for 556708 jiffies! g47497 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
May 21 14:18:46 rhel-serverxbr kernel: rcu: Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
May 21 14:18:46 rhel-serverxbr kernel: rcu: RCU grace-period kthread stack dump:
May 21 14:18:46 rhel-serverxbr kernel: task:rcu_sched state:R running task stack: 0 pid: 12 ppid: 2 flags:0x80004000
May 21 14:18:46 rhel-serverxbr kernel: Call Trace:
May 21 14:18:46 rhel-serverxbr kernel: __schedule+0x2d1/0x830
May 21 14:18:46 rhel-serverxbr kernel: schedule+0x35/0xa0
May 21 14:18:46 rhel-serverxbr kernel: schedule_timeout+0x197/0x300
May 21 14:18:46 rhel-serverxbr kernel: ? __next_timer_interrupt+0xf0/0xf0
May 21 14:18:46 rhel-serverxbr kernel: ? __prepare_to_swait+0x4b/0x70
May 21 14:18:46 rhel-serverxbr kernel: rcu_gp_kthread+0x4e5/0xab0
May 21 14:18:46 rhel-serverxbr kernel: ? rcu_accelerate_cbs_unlocked+0x80/0x80
May 21 14:18:46 rhel-serverxbr kernel: kthread+0x10a/0x120
May 21 14:18:46 rhel-serverxbr kernel: ? set_kthread_struct+0x40/0x40
May 21 14:18:46 rhel-serverxbr kernel: ret_from_fork+0x35/0x40
May 21 14:18:46 rhel-serverxbr kernel: rcu: Stack dump where RCU GP kthread last ran:
May 21 14:18:46 rhel-serverxbr kernel: NMI backtrace for cpu 0
May 21 14:18:46 rhel-serverxbr kernel: CPU: 0 PID: 1210 Comm: gmain Not tainted 4.18.0-372.9.1.el8.x86_64 #1
May 21 14:18:46 rhel-serverxbr kernel: Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
May 21 14:18:46 rhel-serverxbr kernel: Call Trace:
May 21 14:18:46 rhel-serverxbr kernel: <IRQ>
May 21 14:18:46 rhel-serverxbr kernel: dump_stack+0x41/0x60
May 21 14:18:46 rhel-serverxbr kernel: nmi_cpu_backtrace.cold.8+0x13/0x4f
May 21 14:18:46 rhel-serverxbr kernel: ? lapic_can_unplug_cpu.cold.30+0x37/0x37
May 21 14:18:46 rhel-serverxbr kernel: nmi_trigger_cpumask_backtrace+0xde/0xe0
May 21 14:18:46 rhel-serverxbr kernel: rcu_check_gp_kthread_starvation+0x106/0x113
May 21 14:18:46 rhel-serverxbr kernel: rcu_sched_clock_irq.cold.99+0x2c1/0x39d
May 21 14:18:46 rhel-serverxbr kernel: ? tick_sched_do_timer+0x50/0x50
May 21 14:18:46 rhel-serverxbr kernel: ? tick_sched_do_timer+0x50/0x50
May 21 14:18:46 rhel-serverxbr kernel: update_process_times+0x55/0x80
May 21 14:18:46 rhel-serverxbr kernel: tick_sched_handle+0x22/0x60
May 21 14:18:46 rhel-serverxbr kernel: tick_sched_timer+0x37/0x70
May 21 14:18:46 rhel-serverxbr kernel: __hrtimer_run_queues+0x100/0x280
May 21 14:18:46 rhel-serverxbr kernel: hrtimer_interrupt+0x100/0x220
May 21 14:18:46 rhel-serverxbr kernel: smp_apic_timer_interrupt+0x6a/0x130
May 21 14:18:46 rhel-serverxbr kernel: apic_timer_interrupt+0xf/0x20
May 21 14:18:46 rhel-serverxbr kernel: </IRQ>
May 21 14:18:46 rhel-serverxbr kernel: RIP: 0010:smp_call_function_single+0xce/0xf0
May 21 14:18:46 rhel-serverxbr kernel: Code: 8b 4c 24 38 65 48 33 0c 25 28 00 00 00 75 34 c9 c3 48 89 d1 48 89 f2 48 89 e6 e8 7d fe ff ff 8b 54>
May 21 14:18:46 rhel-serverxbr kernel: RSP: 0000:ffffa87e8125fc80 EFLAGS: 00010202 ORIG_RAX: ffffffffffffff13
May 21 14:18:46 rhel-serverxbr kernel: RAX: 0000000000000000 RBX: ffff9a82c5fea858 RCX: 0000000000000000
May 21 14:18:46 rhel-serverxbr kernel: RDX: 0000000000000001 RSI: 00000000000000fb RDI: 0000000000000206
May 21 14:18:46 rhel-serverxbr kernel: RBP: ffffa87e8125fcc0 R08: 0000000000000001 R09: 000000000005ebe6
May 21 14:18:46 rhel-serverxbr kernel: R10: 0000000000000000 R11: 0000000000000000 R12: ffff9a82c5fea400
May 21 14:18:46 rhel-serverxbr kernel: R13: ffffd04cc0e85840 R14: ffffd04cc0eb96c0 R15: 800000003ae5b867
May 21 14:18:46 rhel-serverxbr kernel: ? flush_tlb_func_common.constprop.9+0x220/0x220
May 21 14:18:46 rhel-serverxbr kernel: flush_tlb_mm_range+0xda/0x110
May 21 14:18:46 rhel-serverxbr kernel: ptep_clear_flush+0x54/0x60
May 21 14:18:46 rhel-serverxbr kernel: wp_page_copy+0x1f6/0x4d0
May 21 14:18:46 rhel-serverxbr kernel: do_wp_page+0xef/0x400
May 21 14:18:46 rhel-serverxbr kernel: __handle_mm_fault+0x7c4/0x7e0
May 21 14:18:46 rhel-serverxbr kernel: ? kernel_wait4+0xb1/0x140
May 21 14:18:46 rhel-serverxbr kernel: handle_mm_fault+0xc1/0x1e0
May 21 14:18:46 rhel-serverxbr kernel: do_user_addr_fault+0x1b5/0x440
May 21 14:18:46 rhel-serverxbr kernel: do_page_fault+0x37/0x130
May 21 14:18:46 rhel-serverxbr kernel: ? page_fault+0x8/0x30
May 21 14:18:46 rhel-serverxbr kernel: page_fault+0x1e/0x30
May 21 14:18:46 rhel-serverxbr kernel: RIP: 0033:0x7f5b57d5dbd9
May 21 14:18:46 rhel-serverxbr kernel: Code: 00 5b e9 7a 6b fd ff 66 2e 0f 1f 84 00 00 00 00 00 48 8b 7f 30 e8 67 71 f8 ff eb d4 0f 1f 44 00 00>
May 21 14:18:46 rhel-serverxbr kernel: RSP: 002b:00007f5b51e859c8 EFLAGS: 00010246
May 21 14:18:46 rhel-serverxbr kernel: RAX: 0000000000000001 RBX: 0000563e94fad560 RCX: 0000000000000002
May 21 14:18:46 rhel-serverxbr kernel: RDX: 0000563e94f89c70 RSI: 000000007fffffff RDI: 0000563e94fad560
May 21 14:18:46 rhel-serverxbr kernel: RBP: 0000000000000002 R08: 0000000000000000 R09: 0000563e9500d8f0
May 21 14:18:46 rhel-serverxbr kernel: R10: 0000563e9500b300 R11: 0000000000000000 R12: 000000007fffffff
May 21 14:18:46 rhel-serverxbr kernel: R13: 0000563e94f89c70 R14: 0000000000000002 R15: 0000000000000002
May 21 14:18:46 rhel-serverxbr systemd[1]: systemd-udevd.service: Watchdog timeout (limit 3min)!
May 21 14:18:46 rhel-serverxbr systemd[1]: systemd-udevd.service: Killing process 671 (systemd-udevd) with signal SIGABRT.
May 21 14:18:46 rhel-serverxbr systemd[1]: timedatex.service: Succeeded.
May 21 14:18:46 rhel-serverxbr systemd[1]: Created slice system-systemd\x2dcoredump.slice.
May 21 14:18:46 rhel-serverxbr systemd[1]: Started Process Core Dump (PID 3160/UID 0).
May 21 14:18:46 rhel-serverxbr systemd-coredump[3174]: Resource limits disable core dumping for process 671 (systemd-udevd).
May 21 14:18:46 rhel-serverxbr systemd-coredump[3174]: Process 671 (systemd-udevd) of user 0 dumped core.
May 21 14:18:46 rhel-serverxbr systemd[1]: systemd-coredump@0-3160-0.service: Succeeded.
May 21 14:18:46 rhel-serverxbr systemd[1]: systemd-udevd.service: Main process exited, code=dumped, status=6/ABRT
May 21 14:18:46 rhel-serverxbr systemd[1]: systemd-udevd.service: Failed with result 'watchdog'.
May 21 14:18:46 rhel-serverxbr systemd[1]: systemd-udevd.service: Service has no hold-off time (RestartSec=0), scheduling restart.
May 21 14:18:46 rhel-serverxbr systemd[1]: systemd-udevd.service: Scheduled restart job, restart counter is at 1.
May 21 14:18:46 rhel-serverxbr systemd[1]: Stopped udev Kernel Device Manager.
May 21 14:18:46 rhel-serverxbr systemd[1]: Starting udev Kernel Device Manager...
May 21 14:18:46 rhel-serverxbr systemd[1]: Started udev Kernel Device Manager.
May 21 14:22:01 rhel-serverxbr anacron[2951]: Job `cron.daily' started
May 21 14:22:01 rhel-serverxbr run-parts[3188]: (/etc/cron.daily) starting logrotate
May 21 14:22:01 rhel-serverxbr run-parts[3193]: (/etc/cron.daily) finished logrotate
6.1.34r150636
Guest: RedHat Entreprise Linux 8.6, 64 Bits, 2 CPUs, 2,5 GB RAM
[volt@rhel-server ~]$ hostnamectl
Static hostname: rhel-serverxbr
Icon name: computer-vm
Chassis: vm
Machine ID: xxxxxxxxx
Boot ID: xxxxxxxx
Virtualization: oracle
Operating System: Red Hat Enterprise Linux 8.6 (Ootpa)
CPE OS Name: cpe:/o:redhat:enterprise_linux:8::baseos
Kernel: Linux 4.18.0-372.9.1.el8.x86_64
Architecture: x86-64
[volt@rhel-server ~]$
Host: Windows 10 PRO - Versao 21H2, 64 Bits, 16Gb RAM, 8 CPUs(I7 9700k)
VM info:
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PS C:\Program Files\Oracle\VirtualBox> .\VBoxManage.exe showvminfo rhel-server --details
Name: rhel-server
Groups: /
Guest OS: Red Hat (64-bit)
UUID: xxxxxxx
Config file: C:\Users\T-GAMER\VirtualBox VMs\rhel-server\rhel-server.vbox
Snapshot folder: C:\Users\T-GAMER\VirtualBox VMs\rhel-server\Snapshots
Log folder: C:\Users\T-GAMER\VirtualBox VMs\rhel-server\Logs
Hardware UUID: 6fe14663-08e7-4d1d-9680-63ec3dbfc92f
Memory size: 2560MB
Page Fusion: disabled
VRAM size: 32MB
CPU exec cap: 100%
HPET: disabled
CPUProfile: host
Chipset: piix3
Firmware: BIOS
Number of CPUs: 2
PAE: enabled
Long Mode: enabled
Triple Fault Reset: disabled
APIC: enabled
X2APIC: enabled
Nested VT-x/AMD-V: disabled
CPUID Portability Level: 0
CPUID overrides: None
Boot menu mode: message and menu
Boot Device 1: HardDisk
Boot Device 2: DVD
Boot Device 3: Floppy
Boot Device 4: Not Assigned
ACPI: enabled
IOAPIC: enabled
BIOS APIC mode: APIC
Time offset: 0ms
RTC: UTC
Hardware Virtualization: enabled
Nested Paging: enabled
Large Pages: enabled
VT-x VPID: enabled
VT-x Unrestricted Exec.: enabled
Paravirt. Provider: Default
Effective Paravirt. Prov.: KVM
State: running (since 2022-05-21T18:51:01.050000000)
Graphics Controller: VMSVGA
Monitor count: 1
3D Acceleration: disabled
2D Video Acceleration: disabled
Teleporter Enabled: disabled
Teleporter Port: 0
Teleporter Address:
Teleporter Password:
Tracing Enabled: disabled
Allow Tracing to Access VM: disabled
Tracing Configuration:
Autostart Enabled: disabled
Autostart Delay: 0
Default Frontend:
VM process priority: default
Storage Controller Name (0): IDE
Storage Controller Type (0): PIIX4
Storage Controller Instance Number (0): 0
Storage Controller Max Port Count (0): 2
Storage Controller Port Count (0): 2
Storage Controller Bootable (0): on
Storage Controller Name (1): SATA
Storage Controller Type (1): IntelAhci
Storage Controller Instance Number (1): 0
Storage Controller Max Port Count (1): 30
Storage Controller Port Count (1): 1
Storage Controller Bootable (1): on
IDE (1, 0): Empty
SATA (0, 0): C:\Users\T-GAMER\VirtualBox VMs\rhel-server\rhel-server.vdi (UUID: 6b82b2f4-7338-4ad2-8d88-25f3b5aba8a2)
NIC 1: MAC: 0800279BF0FE, Attachment: NAT, Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps, Boot priority: 0, Promisc Policy: deny, Bandwidth group: none
NIC 1 Settings: MTU: 0, Socket (send: 64, receive: 64), TCP Window (send:64, receive: 64)
NIC 2: MAC: 0800279E6C6A, Attachment: Host-only Interface 'VirtualBox Host-Only Ethernet Adapter', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps, Boot priority: 0, Promisc Policy: deny, Bandwidth group: none
NIC 3: disabled
NIC 4: disabled
NIC 5: disabled
NIC 6: disabled
NIC 7: disabled
NIC 8: disabled
Pointing Device: PS/2 Mouse
Keyboard Device: PS/2 Keyboard
UART 1: disabled
UART 2: disabled
UART 3: disabled
UART 4: disabled
LPT 1: disabled
LPT 2: disabled
Audio: enabled (Driver: DSOUND, Controller: AC97, Codec: AD1980)
Audio playback: enabled
Audio capture: disabled
Clipboard Mode: disabled
Drag and drop Mode: disabled
Session name: GUI/Qt
Video mode: 800x600x32 at 0,0 enabled
VRDE: disabled
OHCI USB: enabled
EHCI USB: disabled
xHCI USB: disabled
USB Device Filters:
<none>
Available remote USB devices:
<none>
Currently Attached USB Devices:
<none>
Bandwidth groups: <none>
Shared folders:<none>
VRDE Connection: not active
Clients so far: 0
Capturing: active
Capture audio: active
Capture screens: 0
Capture file: C:\Users\T-GAMER\VirtualBox VMs\rhel-server\rhel-server.webm
Capture dimensions: 1024x768
Capture rate: 512kbps
Capture FPS: 25kbps
Capture options: vc_enabled=true,ac_enabled=true,ac_profile=med
Guest:
Configured memory balloon size: 0MB
OS type: RedHat_64
Additions run level: 0
Guest Facilities:
No active facilities.
PS C:\Program Files\Oracle\VirtualBox>
Here are the logs from the VirtualBox I uploaded:
VirtualBox_logs.rar
I posted a thread on RedHat Custumer Portal too:
access redhat com/discussions/6960285?tour=8
From a very concerned person,
Volt