On Fri, Apr 17, 2020 at 09:29:20AM +0800, Philip Li wrote:
> On Thu, Apr 16, 2020 at 09:38:53AM -0700, Mat Martineau wrote:
> > 
> > Philip,
> > 
> > On Tue, 14 Apr 2020, kernel test robot wrote:
> > 
> > > 
> > > LINUX COMMIT
> > > ============
> > > commit : 531346f5a4531ca65fade2ec1d4c5beea97e5864
> > > subject: tcp: mptcp: use mptcp receive buffer space to select rcv window
> > > date   : 2020-04-09 09:17:34 +0800
> > > author : Florian Westphal <fw(a)strlen.de>
> > > 
> > > 
> > > Test status of 531346f5a4531ca65fade2ec1d4c5beea97e5864 (compared to v5.6)
> > > ==========================================================================
> > > +-------------------------------------------------------------------------------+------+------+----------+------+---+------------+-----+
> > > |                                                                               | pass | fail | unstable | skip | - | regression | fix |
> > > | kselftests-bpf/vm-snb/debian-x86_64-20191114.cgz/x86_64-rhel-7.6-kselftests   | 42   | 7    |          | 3    |   |            |     |
> > > | kselftests-mptcp/vm-snb/debian-x86_64-20191114.cgz/x86_64-rhel-7.6-kselftests | 3    |      |          |      |   |            |     |
> > > +-------------------------------------------------------------------------------+------+------+----------+------+---+------------+-----+
> > > 
> > > Fails
> > > =====
> > > kselftests-bpf/vm-snb/debian-x86_64-20191114.cgz/x86_64-rhel-7.6-kselftests
> > > ---
> > > - kernel-selftests.bpf.test_progs.fail
> > > - kernel-selftests.bpf.test_align.fail
> > > - kernel-selftests.bpf.test_btf.fail
> > > - kernel-selftests.bpf.test_sysctl.fail
> > > - kernel-selftests.bpf.test_progs-no_alu32.fail
> > > - kernel-selftests.bpf.test_bpftool.sh.fail
> > > - kernel-selftests.bpf.test_tc_edt.sh.fail
> > > 
> > 
> > Are these failures also present on net-next or Linus' 5.7-rc1+ tree? The
> > message does say the test status is compared to v5.6, but the mptcp tree has
> > only minor changes from net-next right now so it seems like there may be
> > underlying problems not related to mptcp.
> Hi Mat, we will follow up to provide test data.
Hi Mat, we had checked test status on v5.7-rc1, which has the below failures

  "kernel-selftests.bpf.test_progs.fail": [
  "kernel-selftests.bpf.test_align.fail": [
  "kernel-selftests.bpf.test_tcpbpf_user.fail": [	<== new in v5.7-rc1
  "kernel-selftests.bpf.test_btf.fail": [
  "kernel-selftests.bpf.test_sysctl.fail": [
  "kernel-selftests.bpf.test_progs-no_alu32.fail": [
  "kernel-selftests.bpf.test_bpftool.sh.fail": [
  "kernel-selftests.bpf.test_tc_edt.sh.pass"		<== pass in v5.7-rc1

v5.7-rc1 had extra "kernel-selftests.bpf.test_tcpbpf_user.fail", but with
kernel-selftests.bpf.test_tc_edt.sh.pass, which failed in 531346f5a4531c here.

We haven't root caused them yet, will plan some effort to see whether the test
is stable and try to resolve other failure if it is env issue.

Thanks

> 
> Currently, if the fail is not regression, which means failsure is also existed
> on v5.6. The cause can be our test environment, we will continue to solving them
> to avoid confusion.
> 
> > 
> > Thanks for sharing the test status for the mptcp repo!
> You are welcome!
> 
> > 
> > 
> > --
> > Mat Martineau
> > Intel
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