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Message-ID: <202002251126.66255B5@keescook>
Date: Tue, 25 Feb 2020 11:31:11 -0800
From: Kees Cook <keescook@...omium.org>
To: Naresh Kamboju <naresh.kamboju@...aro.org>
Cc: "open list:KERNEL SELFTEST FRAMEWORK"
<linux-kselftest@...r.kernel.org>, Shuah Khan <shuah@...nel.org>,
Anders Roxell <anders.roxell@...aro.org>,
lkft-triage@...ts.linaro.org,
open list <linux-kernel@...r.kernel.org>, ankita@...ibm.com,
Will Deacon <will@...nel.org>, ardb@...nel.org,
"Guohanjun (Hanjun Guo)" <guohanjun@...wei.com>
Subject: Re: selftests: Linux Kernel Dump Test Module output
On Mon, Feb 17, 2020 at 04:39:37PM +0530, Naresh Kamboju wrote:
> The selftest lkdtm test failed on x86_64 and arm64.
> am I missing any pre-requisite?
> [...]
> ref:
> https://qa-reports.linaro.org/lkft/linux-mainline-oe/build/v5.6-rc1-19-g359c92c02bfa/testrun/1212254/log
Looking at this, I see debugfs mounted, I see LKDTM enabled, but I see
the console freak out just as lkdtm starts:
[ 349.262263] kselftest: Running tests in lkdtm
# 4 0x0000000000401014 ?? ??0
0x0000000000401014: ??_??0 #
# 5 0x00007f9de1221a56 ?? ??0
0x00007f9de1221a56: ??_??0 #
# 6 0x0000000000401399 ?? ??0
0x0000000000401399: ??_??0 #
# madvise failed,
failed,: _ #
# addr 0x7f9de1000000
0x7f9de1000000: _ #
# length 0x200000
0x200000: _ #
# src_type 0
0: _ #
# Testing guest mode PA-bitsANY, VA-bits48, 4K pages
guest: mode_PA-bitsANY, #
# Guest physical address width detected 39
physical: address_width #
[FAIL] 11 selftests kvm vmx_dirty_log_test # exit=254
Is a kvm test running at the same time? It just looks like the entire
console goes silent (which would certainly make the lkdtm tests fail)
> https://qa-reports.linaro.org/lkft/linux-mainline-oe/build/v5.5-11440-gd1ea35f4cdd4/testrun/1202720/log
Similar happens here, only this time it seems to be gpio tests?
[ 363.276824] kselftest: Running tests in lkdtm
# ./gpio-mockup.sh line 89 ./gpio-mockup-chardev No such file or
# directory
line: 89_./gpio-mockup-chardev #
# GPIO gpio-mockup test with ranges <-1,32,-1,32,-1,32>
gpio-mockup: test_with #
# -1,32,-1,32,-1,32
...
[ 407.481225] test_bpf: #0 TAX jited:1 63 62 132 PASS
The console seems broken for over 40 seconds?
--
Kees Cook
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