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Message-ID: <20191230005304.GH2760@shao2-debian>
Date: Mon, 30 Dec 2019 08:53:05 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Russell King <rmk+kernel@...linux.org.uk>
Cc: "David S. Miller" <davem@...emloft.net>,
LKML <linux-kernel@...r.kernel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>,
lkp@...ts.01.org
Subject: [net] 2203cbf2c8:
kmsg.dsa-loop_fixed-#:#f_lan1(uninitialized):error_creating_PHYLINK
FYI, we noticed the following commit (built with gcc-7):
commit: 2203cbf2c8b58a1e3bef98c47531d431d11639a0 ("net: sfp: move fwnode parsing into sfp-bus layer")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 8G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+-------------------------------------------------------------------+------------+------------+
| | 9370f2d05a | 2203cbf2c8 |
+-------------------------------------------------------------------+------------+------------+
| boot_successes | 0 | 0 |
| boot_failures | 6 | 6 |
| WARNING:at_fs/open.c:#do_dentry_open | 6 | 6 |
| RIP:do_dentry_open | 6 | 6 |
| dsa-loop_fixed-#:#f_lan1(uninitialized):unable_to_attach_SFP_bus | 6 | 6 |
| dsa-loop_fixed-#:#f_lan1(uninitialized):error_creating_PHYLINK | 6 | 6 |
+-------------------------------------------------------------------+------------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <rong.a.chen@...el.com>
[ 38.403301] dsa-loop fixed-0:1f: DSA mockup driver: 0x1f
[ 38.421486] libphy: dsa slave smi: probed
[ 38.424643] dsa-loop fixed-0:1f lan1 (uninitialized): unable to attach SFP bus: -22
[ 38.426047] dsa-loop fixed-0:1f lan1 (uninitialized): error creating PHYLINK: -22
[ 38.427369] e1000 0000:00:03.0 eth0: error -22 setting up slave phy
[ 38.432020] dsa-loop: probe of fixed-0:1f failed with error -22
To reproduce:
# build kernel
cd linux
cp config-5.4.0-rc1-00566-g2203cbf2c8b58 .config
make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
Rong Chen
View attachment "config-5.4.0-rc1-00566-g2203cbf2c8b58" of type "text/plain" (152084 bytes)
View attachment "job-script" of type "text/plain" (4731 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (20700 bytes)
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