Trying to upload dmesg crashes the site.
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https://bugs.launchpad.net/bugs/2045778
Title:
panic due to unhandled page fault via BPF_PROG_RUN syscall
Status in
** Attachment added: "lspci-vvnn.log"
https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/2045778/+attachment/5727445/+files/lspci-vvnn.log
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** Attachment added: "uname-a.log"
https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/2045778/+attachment/5727444/+files/uname-a.log
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** Attachment added: "version.log"
https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/2045778/+attachment/5727443/+files/version.log
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Public bug reported:
Here is a kernel oops triggered from user space by invoking a BPF
program:
[ 1191.051531] BUG: unable to handle page fault for address: ea053c70
[ 1191.053848] #PF: supervisor read access in kernel mode
[ 1191.055183] #PF: error_code(0x) - not-present page
[
Public bug reported:
linux-image-5.13.0-39-generic:
Installed: 5.13.0-39.44~20.04.1
Description:Ubuntu 20.04.1 LTS
Release:20.04
I use qemu to run short lived Linux VMs as part of a CI pipeline, using
nested KVM on Intel CPUs. With good probability, one of the qemu
processes
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