Public bug reported:
❯ lsb_release -rd
Description: Ubuntu 20.04.4 LTS
Release: 20.04
The kernel panicked after a restart.
The screen displayed:
0.524526] pci 0000:00:07.0: DPC: RP PIO log size 0 is invalid
0.5261261 pci 0000:00:07.3: DPC: RP PIO log size O is invalid
0.8234791 Kernel panic
- nat syncing: UFS: Unable to mount root fs on unknown-block(0,0)
0.823495] CPU: 4 PID: 1 Comm: swapper/O Not tainted 5.13.0-40-generic
#45"20.04.1-Ubuntu
0.8235091 Hardware name: Dell Inc. XPS 15 9510/01V413, BIOS 1.5.1 08/20/2021
0.8235211 Call Trace:
0.8235291 (TASK>
0.823535] dump_stack+0x7d/0x9c
0.823544] panic+0x101/OxZe3
0.823552]
mount_ block_root+0x299/0x31d
0.823561]
mount_root+0x38/Ox3a
0.8235681
prepare_namespace+0x13f/0x18d
0.8235771 kernel_init_frecable+0x26a/0x290
0.8235871
? rest_init+0xha/Oxba
0.823596]
kernel_init+0xe/0x116
0.823603]
ret_from_fork+0x1f/0x30
0.8236111
C/TASK>
0.8236941 Kernel Offset: 0x21c00000 from OxffffffffB1000000 (relocation range:
Oxffffffff80000000-Oxffffffftbfffffff)
0.823712] ---I end Kernel panic
- not suncing: UFS: Unable to mount root fs on unknown-block(0, 0) ]-
And was unresponsive after that.
I typically suspend my machine and only restart once in a while. Decided to do
so yesterday because some (built-in keyboard) keys became unresponsive (fn+F8
fn+f9 to control screen brightness, and the on-off key to suspend/resume).
I could fortunately use the previous kernel and that seems to work fine.
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1970722
Title:
5.13.0-40-generic kernel panic
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