linux-kernel - Re: qemu meltdown test failure was Re: [PATCH 4.4 00/30] 4.4.260-rc1 review

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Date:   Sun, 7 Mar 2021 09:20:57 +0100
From:   Pavel Machek <pavel@...x.de>
To:     Pavel Machek <pavel@...x.de>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Chris.Paterson2@...esas.com, linux-kernel@...r.kernel.org,
        torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
        linux@...ck-us.net, shuah@...nel.org, patches@...nelci.org,
        lkft-triage@...ts.linaro.org, jonathanh@...dia.com,
        f.fainelli@...il.com, stable@...r.kernel.org
Subject: Re: qemu meltdown test failure was Re: [PATCH 4.4 00/30] 4.4.260-rc1
 review

Hi!

> > > Ok, so we ran some tests.
> > > 
> > > And they failed:
> > > 
> > > https://gitlab.com/cip-project/cip-testing/linux-stable-rc-ci/-/jobs/1075959449
> > > 
> > > [   26.785861] <LAVA_SIGNAL_TESTCASE TEST_CASE_ID=CVE-2018-3639 RESULT=fail>
> > > Received signal: <TESTCASE> TEST_CASE_ID=CVE-2018-3639 RESULT=fail
> > > 
> > > Testcase name is spectre-meltdown-checker... Failing on qemu? Somehow
> > > strange, but it looks like real test failure.

This is pointer to the pipeline:

https://gitlab.com/cip-project/cip-testing/linux-stable-rc-ci/-/pipelines/265992696

> First let me try 7d472e4a11d6a2fb1c492b02c7d7dacd3297bbf4 --
> v4.4.257-cip54. That is
> https://gitlab.com/cip-project/cip-kernel/linux-cip/-/pipelines/266532179
> ... Qemu is OKAY.
> 
> add3ff3730919447a7519fede0b8554132e0f8d5 Merge remote-tracking branch
> 'stable/queue/4.4' in to v4.4.260-bisect. Results will be at
> https://gitlab.com/cip-project/cip-kernel/linux-cip/-/pipelines/266534478
> ... ... still pending.

Qemu is okay here, too.

> test 266539168       8c461bb103f89696576945ad9cb376df34fa9d28 xen-netback: respect gnttab_map_refs()'s return value

Qemu is ok.

> test 266538760       1efe86b456816c95485c65cf9ba46a5bff8a241e staging: fwserial: Fix error handling in fwserial_create

Qemu is ok.

> test 266539768       8b4bc0f97fdd13b08c2436aad01bd4515d07f93a iwlwifi: pcie: fix to correct null check
								Pavel
Qemu is ok.

https://gitlab.com/cip-project/cip-kernel/linux-cip/-/pipelines/266539768

So... failure apparently went away when trying to
bisect. That's.... strange? Aha, except that it looks like the same
"suceeded" tests still have failures in them:

https://lava.ciplatform.org/scheduler/job/173186

[   26.224557] <LAVA_SIGNAL_TESTCASE TEST_CASE_ID=CVE-2017-5715
RESULT=fail>
Received signal: <TESTCASE> TEST_CASE_ID=CVE-2017-5715 RESULT=fail

...I guess those fails are expected, then? And qemu tests on
-stable-rc are really failing on timeouts. ... Hmm, let's just re-run
the tests.

I'm still not sure, but it looks like a test failure now.

Best regards,

								Pavel
-- 
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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