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please enter the following command in a terminal window:
apport-collect 1909286
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This change has been made by an automated script, maintained by the
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** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Changed in: linux (Ubuntu Focal)
Status: New => Incomplete
** Changed in: linux (Ubuntu Hirsute)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1909286
Title:
ubuntu_kernel_selftest will be interrupted with the reuseport_bpf_cpu
/ reuseport_bpf_numa test in net (BUG: Unable to handle kernel
instruction fetch (NULL pointer?))
Status in ubuntu-kernel-tests:
Confirmed
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Focal:
Confirmed
Status in linux source package in Hirsute:
Confirmed
Bug description:
Issue found with 5.4.0-59.65~18.04.1 P8 node entei and dryden
It looks like the ubuntu_kernel_selftests will be interrupted when
running the reuseport_bpf_cpu / reuseport_bpf_numa in net category.
From the jenkins test log you will see the test didn't finish.
For node entei:
07:37:44 DEBUG| [stdout] # selftests: net: reuseport_bpf_cpu
07:37:44 DEBUG| [stdout] # ---- IPv4 UDP ----
07:37:44 DEBUG| [stdout] # send cpu 0, receive socket 0
07:37:44 DEBUG| [stdout] # send cpu 1, receive socket 1
07:37:44 DEBUG| [stdout] # send cpu 2, receive socket 2
...
07:37:44 DEBUG| [stdout] # send cpu 123, receive socket 123
07:37:44 DEBUG| [stdout] # send cpu 125, receive socket 125
07:37:44 DEBUG| [stdout] # send cpu 127, receive socket 127
07:37:44 DEBUG| [stdout] # ---- IPv6 UDP ----
07:37:44 DEBUG| [stdout] # send cpu 0, receive socket 0
07:37:44 DEBUG| [stdout] # send cpu 1, receive socket 1
07:37:44 DEBUG| [stdout] # send cpu 2, receive socket 2
....
07:37:44 DEBUG| [stdout] # send cpu 123, receive socket 123
07:37:44 DEBUG| [stdout] # send cpu 125, receive socket 125
07:37:44 DEBUG| [stdout] # send cpu 127, receive socket 127
07:37:44 DEBUG| [stdout] # ---- IPv4 TCP ----
+
ARCHIVE=/var/lib/jenkins/jobs/sru-misc__B-hwe-5.4_ppc64el-generic__using_entei__for_kernel/builds/1/archive
+ scp -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o
LogLevel=quiet -r ubuntu@entei:kernel-test-results
/var/lib/jenkins/jobs/sru-misc__B-hwe-5.4_ppc64el-generic__using_entei__for_kernel/builds/1/archive
For node dryden:
08:22:09 DEBUG| [stdout] ok 2 selftests: net: reuseport_bpf_cpu
08:22:09 DEBUG| [stdout] # selftests: net: reuseport_bpf_numa
08:22:09 DEBUG| [stdout] # ---- IPv4 UDP ----
+
ARCHIVE=/var/lib/jenkins/jobs/sru-misc__B-hwe-5.4_ppc64el-generic__using_dryden__for_kernel/builds/2/archive
+ scp -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o
LogLevel=quiet -r ubuntu@dryden:kernel-test-results
/var/lib/jenkins/jobs/sru-misc__B-hwe-5.4_ppc64el-generic__using_dryden__for_kernel/builds/2/archive
This issue does not exist in Focal 5.4
Trace back to older Bionic 5.4 kernel:
* 5.4.0-58.64~18.04.1 - not tested
* 5.4.0-57.63~18.04.1 - this issue does not exist as the bpf test build is
blocking the build of net test
* 5.4.0-56.62~18.04.1 - missing test result as node modoc is broken
* 5.4.0-52.57~18.04.1 - no such issue with node modoc
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