linux-kernel - kselftest on UML results - 4.14.0-rc3-00019-g78d8732cf2d8

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <20171003110145.6we77bub3mmkvyum@olymp>
Date:   Tue, 3 Oct 2017 13:13:00 +0200
From:   Thomas Meyer <thomas@...3r.de>
To:     linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: kselftest on UML results - 4.14.0-rc3-00019-g78d8732cf2d8

Hi,

here are the results from running the kselftests under UML, created with the script
available here:
https://github.com/thomasmey/uml/blob/master/uml-fedora-kselftest.sh

1.) code coverage
http://m3y3r.de/kselftest/4.14.0-rc3-00019-g78d8732cf2d8/coverage/index.html

2.) cyclomatic complexity
http://m3y3r.de/kselftest/4.14.0-rc3-00019-g78d8732cf2d8/result-cyc-comp.txt

3.) kernel build stderr output
http://m3y3r.de/kselftest/4.14.0-rc3-00019-g78d8732cf2d8/result-kernel-build-stderr.txt

4.) kselftests output:
http://m3y3r.de/kselftest/4.14.0-rc3-00019-g78d8732cf2d8/result-kselftests.txt

PS: I have a question regarding the cyclomatic complexity: What is the
meaning of it? I mean I read the definition on Wikipedia, but what do I
do with those results?  The ten most "complex" functions are:

Cyclomatic Complexity 730 /home/thomas/git/linux/drivers/md/bcache/super.c:cache_alloc 
Cyclomatic Complexity 299 /home/thomas/git/linux/drivers/misc/altera-stapl/altera.c:altera_execute 
Cyclomatic Complexity 272 /home/thomas/git/linux/drivers/net/wireless/ti/wl18xx/debugfs.c:wl18xx_debugfs_add_files 
Cyclomatic Complexity 266 /home/thomas/git/linux/drivers/md/bcache/super.c:bch_cache_set_alloc 
Cyclomatic Complexity 252 /home/thomas/git/linux/fs/ext4/super.c:ext4_fill_super 
Cyclomatic Complexity 234 /home/thomas/git/linux/net/core/pktgen.c:pktgen_if_write 
Cyclomatic Complexity 220 /home/thomas/git/linux/mm/page_alloc.c:alloc_large_system_hash 
Cyclomatic Complexity 218 /home/thomas/git/linux/net/sctp/protocol.c:sctp_init 
Cyclomatic Complexity 216 /home/thomas/git/linux/crypto/tcrypt.c:do_test 
Cyclomatic Complexity 210 /home/thomas/git/linux/lib/rhashtable.c:rhashtable_init 

So is bcache/super.c:cache_alloc a place where bugs lurk?

With kind regards
thomas