linux-kernel - [keys] f802f2b3a9: kmsg.Problem_loading_in-kernel

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Message-ID: <20190828010740.GH22771@shao2-debian>
Date:   Wed, 28 Aug 2019 09:07:40 +0800
From:   kernel test robot <rong.a.chen@...el.com>
To:     David Howells <dhowells@...hat.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>, lkp@...org
Subject: [keys] f802f2b3a9: kmsg.Problem_loading_in-kernel_X.#certificate(-#)

FYI, we noticed the following commit (built with gcc-7):

commit: f802f2b3a991653293420ab3d676cfa2fee858df ("keys: Replace uid/gid/perm permissions checking with an ACL")
https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git master

in testcase: xfstests
with following parameters:

	disk: 4HDD
	fs: xfs
	test: generic-group5

test-description: xfstests is a regression test suite for xfs and other files ystems.
test-url: git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git


on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 4G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


+---------------------------------------------------------------------------------------------------------------+----------+------------+
|                                                                                                               | v5.3-rc1 | f802f2b3a9 |
+---------------------------------------------------------------------------------------------------------------+----------+------------+
| boot_successes                                                                                                | 5        | 0          |
| boot_failures                                                                                                 | 5        | 4          |
| WARNING:at_fs/iomap/direct-io.c:#iomap_dio_actor                                                              | 4        | 4          |
| RIP:iomap_dio_actor                                                                                           | 4        | 4          |
| RIP:clear_page_rep                                                                                            | 1        |            |
| BUG:soft_lockup-CPU##stuck_for#s                                                                              | 1        |            |
| Kernel_panic-not_syncing:softlockup:hung_tasks                                                                | 1        |            |
| Problem_loading_in-kernel_X.#certificate(-#)                                                                  | 0        | 4          |
+---------------------------------------------------------------------------------------------------------------+----------+------------+


If you fix the issue, kindly add following tag
Reported-by: kernel test robot <rong.a.chen@...el.com>




To reproduce:

        # build kernel
	cd linux
	cp config-5.3.0-rc1-00001-gf802f2b3a9916 .config
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install
	cd <mod-install-dir>
	find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz


        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email



Thanks,
Rong Chen


View attachment "config-5.3.0-rc1-00001-gf802f2b3a9916" of type "text/plain" (199543 bytes)

View attachment "job-script" of type "text/plain" (5511 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (30716 bytes)

View attachment "xfstests" of type "text/plain" (6498 bytes)