Linux Guest Kernel Problems: hung_task_timeout_secs

[aannoo]

I'm using VirtualBox 6.1.34 in a enterprise environment on Windows 10 (20H2, Build 19042.1645). My guest is a up-to-date Ubuntu 20.04 desktop system. Hyper-v is not installed.

Before I disabled GLX with /etc/X11/xorg.conf:

# https://unix.stackexchange.com/questions/408582/how-to-disable-hardware-acceleration-in-linux
Section "Extensions"
    Option "GLX" "Disable"
EndSection

the system was hardly usable as it freezes after a few seconds.

With GLX disable, the system is usable for a few minutes. After this, the desktop is inresponsible, but it is possible to use the vt text login.

I encounter the following errors in dmesg:

[  574.811556] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[  574.811654] RIP: 0010:native_safe_halt+0xe/0x10
[  574.811658] Code: 7b ff ff ff eb bd 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d 76 34 52 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 66 34 52 00 fb f4 <c3> 90 0f 1f 44 00 00 55 48 89 e5 41 55 41 54 53 e8 6d 33 63 ff 65
[  574.811659] RSP: 0018:ffffffffb5003e18 EFLAGS: 00010246 ORIG_RAX: ffffffffffffff13
[  574.811663] RAX: ffffffffb40e7f00 RBX: 0000000000000000 RCX: 0000000000000001
[  574.811664] RDX: 00000000000666ce RSI: ffffffffb5003dd8 RDI: 0000007983241cab
[  574.811666] RBP: ffffffffb5003e38 R08: 0000000000000001 R09: 000000000002fe00
[  574.811667] R10: 0000000000000400 R11: 0000000000000200 R12: 0000000000000000
[  574.811669] R13: ffffffffb5013780 R14: 0000000000000000 R15: 0000000000000000
[  574.811671] FS:  0000000000000000(0000) GS:ffff92dc97a00000(0000) knlGS:0000000000000000
[  574.811673] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  574.811674] CR2: 00007f8121004370 CR3: 000000020b7ee005 CR4: 00000000000206f0
[  574.811678] Call Trace:
[  574.811683]  ? default_idle+0x20/0x140
[  574.811692]  arch_cpu_idle+0x15/0x20
[  574.811695]  default_idle_call+0x23/0x30
[  574.811700]  do_idle+0x1fb/0x270
[  574.811703]  cpu_startup_entry+0x20/0x30
[  574.811706]  rest_init+0xae/0xb0
[  574.811712]  arch_call_rest_init+0xe/0x1b
[  574.811715]  start_kernel+0x549/0x56a
[  574.811796]  x86_64_start_reservations+0x24/0x26
[  574.811800]  x86_64_start_kernel+0x75/0x79
[  574.811805]  secondary_startup_64+0xa4/0xb0
[  584.808689] psmouse serio1: resync failed, issuing reconnect request
[  847.478756] INFO: task jbd2/dm-0-8:330 blocked for more than 120 seconds.
[  847.478790]       Tainted: G           OEL    5.4.0-109-generic #123-Ubuntu
[  847.478812] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

[aannoo]

full dmesg output

[aannoo]

The problem has not happened to me any more beginning with Virtualbox 6.1.36. Hence it is probably solved.

[galitsyn]

Closing ticket, please reopen if problem will appear again.