emulator test in ubunut_kvm_unit_tests regression between "disco" / "hirsute" branch on B-4.15
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
ubuntu-kernel-tests |
New
|
Undecided
|
Unassigned |
Bug Description
Issue found on Bionic 4.15.0-1123-azure StandardD48-v3 and Bionic 4.15.0-155.162 with node rizzo.
This is not a real kernel regression but a new failure reported by updated test suite.
This emulator test was not failing with the old disco branch but failing with the hirsute branch.
Caused by this commit (new test added):
commit 8726f9771911d67
Author: Jacob Xu <email address hidden>
Date: Wed Apr 21 16:12:57 2021 -0700
x86: add movups/movupd sse testcases to emulator.c
Here we add movups/movupd tests corresponding to functionality
introduced in commit 29916968c486 ("kvm: Add emulation for movups/movupd").
Signed-off-by: Jacob Xu <email address hidden>
Message-Id: <email address hidden>
Signed-off-by: Paolo Bonzini <email address hidden>
$ git bisect log
git bisect start
# bad: [1593e88af6f925
git bisect bad 1593e88af6f925f
# good: [764aa0b88d9556
git bisect good 764aa0b88d95565
# good: [b373304853a072
git bisect good b373304853a072b
# good: [1f4057eb69c473
git bisect good 1f4057eb69c473d
# bad: [9f0ae3012430ed
git bisect bad 9f0ae3012430ed7
# good: [142ff6358dacd3
git bisect good 142ff6358dacd32
# bad: [c0edb3d22f90dd
git bisect bad c0edb3d22f90dd4
# bad: [d3d7fa5a1bf329
git bisect bad d3d7fa5a1bf3298
# bad: [0b6f6cedcd6ef4
git bisect bad 0b6f6cedcd6ef4a
# bad: [88f0bb17adea42
git bisect bad 88f0bb17adea42f
# bad: [e5e76263b544c4
git bisect bad e5e76263b544c4f
# bad: [8726f9771911d6
git bisect bad 8726f9771911d67
# first bad commit: [8726f9771911d6
summary: |
- emulator test in ubunut_kvm_unit_tests regression between disco / - hirsute branch + emulator test in ubunut_kvm_unit_tests regression between "disco" / + "hirsute" branch on B-4.15 |
description: | updated |
OK I did investigate this before... see comment #2 in bug 1932966