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Message-ID: <537D8030.8010403@intel.com>
Date: Thu, 22 May 2014 12:42:24 +0800
From: Jet Chen <jet.chen@...el.com>
To: Steffen Klassert <steffen.klassert@...unet.com>
CC: netdev@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
Fengguang Wu <fengguang.wu@...el.com>
Subject: [net] WARNING: CPU: 1 PID: 1 at net/batman-adv/hard-interface.c:92
batadv_is_on_batman_iface()
Hi Steffen,
0day kernel testing robot got the below dmesg and the first bad commit is
git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git master
commit 78ff4be45a4c51d8fb21ad92e4fabb467c6c3eeb
Author: Steffen Klassert <steffen.klassert@...unet.com>
AuthorDate: Mon May 19 11:36:56 2014 +0200
Commit: David S. Miller <davem@...emloft.net>
CommitDate: Wed May 21 02:08:32 2014 -0400
ip_tunnel: Initialize the fallback device properly
We need to initialize the fallback device to have a correct mtu
set on this device. Otherwise the mtu is set to null and the device
is unusable.
Fixes: fd58156e456d ("IPIP: Use ip-tunneling code.")
Cc: Pravin B Shelar <pshelar@...ira.com>
Signed-off-by: Steffen Klassert <steffen.klassert@...unet.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
+--------------------------------------------------------------------------------+------------+------------+
| | d8d33c3b8a | 78ff4be45a |
+--------------------------------------------------------------------------------+------------+------------+
| boot_successes | 60 | 0 |
| boot_failures | 0 | 20 |
| WARNING:CPU:PID:at_net/batman-adv/hard-interface.c:batadv_is_on_batman_iface() | 0 | 20 |
| backtrace:register_netdevice_notifier | 0 | 20 |
| backtrace:batadv_init | 0 | 20 |
| backtrace:kernel_init_freeable | 0 | 20 |
+--------------------------------------------------------------------------------+------------+------------+
[ 31.090120] libceph: loaded (mon/osd proto 15/24)
[ 31.090854] ------------[ cut here ]------------
[ 31.090854] ------------[ cut here ]------------
[ 31.091497] WARNING: CPU: 1 PID: 1 at net/batman-adv/hard-interface.c:92 batadv_is_on_batman_iface+0x62/0x70()
git bisect start 842390939e8dc18fe8a87e257e7e8088548bd8d7 d6d211db37e75de2ddc3a4f979038c40df7cc79c --
git bisect bad 6e8a2e89a46e99e7750d8511b94c6e964fa62041 # 18:29 0- 20 Merge 'arm-soc/keystone/dt' into devel-hourly-2014052115
git bisect bad 732aed36300f1426c6da40602fbaf23dd79d8391 # 19:21 0- 1 Merge 'tip/irq/core' into devel-hourly-2014052115
git bisect good fd69bb2faebc552b4da42966ee51e1dea9ba77e6 # 19:28 20+ 0 Merge 'block/for-3.16/drivers' into devel-hourly-2014052115
git bisect bad 917a4d3aed6301097ff8a2b2bb74be34be5c9b23 # 19:39 0- 5 Merge 'net/master' into devel-hourly-2014052115
git bisect good 6c8b235f29b6b756379d7d5d86371a9f399afa52 # 20:04 20+ 0 Merge 'hwmon/hwmon-next' into devel-hourly-2014052115
git bisect good 70c0859af3e380a0508883120adac883b456b056 # 21:09 20+ 0 Merge 'kees/lsm-mnt-restrict' into devel-hourly-2014052115
git bisect good b394745df2d9d4c30bf1bcc55773bec6f3bc7c67 # 21:31 20+ 0 net: phy: Don't call phy_resume if phy_init_hw failed
git bisect good 202630b445d2618d94e4f099567fcee5618dab27 # 22:25 20+ 0 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
git bisect good 0d08fceb2e21c30ca3e1e462e678723f806acf18 # 23:18 20+ 0 xen-netback: fix race between napi_complete() and interrupt handler
git bisect good 25175ba5c9bff9aaf0229df34bb5d54c81633ec3 # 00:28 20+ 0 net: Allow for more then a single subclass for netif_addr_lock
git bisect good 5467a512216753d54f757314c73dbc60f659f9e6 # 03:39 20+ 0 netfilter: nf_tables: fix goto action
git bisect good c674ac30c549596295eb0a5af7f4714c0b905b6f # 04:12 20+ 0 macvlan: Fix lockdep warnings with stacked macvlan devices
git bisect good e1618d461ca18d40f9c3ef70598abb72e75d27ae # 07:14 20+ 0 vlan: Fix build error wth vlan_get_encap_level()
git bisect good 3b084e99a3fabaeb0f9c65a0806cde30f0b2835e # 07:47 20+ 0 netfilter: nf_tables: fix trace of matching non-terminal rule
git bisect good d8d33c3b8a42fbd9ad23a61498fa5db1d83644e0 # 08:09 20+ 0 Merge tag 'linux-can-fixes-for-3.15-20140519' of git://gitorious.org/linux-can/linux-can
git bisect bad 78ff4be45a4c51d8fb21ad92e4fabb467c6c3eeb # 08:52 0- 13 ip_tunnel: Initialize the fallback device properly
# first bad commit: [78ff4be45a4c51d8fb21ad92e4fabb467c6c3eeb] ip_tunnel: Initialize the fallback device properly
git bisect good d8d33c3b8a42fbd9ad23a61498fa5db1d83644e0 # 08:55 60+ 0 Merge tag 'linux-can-fixes-for-3.15-20140519' of git://gitorious.org/linux-can/linux-can
git bisect bad 842390939e8dc18fe8a87e257e7e8088548bd8d7 # 08:55 0- 13 0day head guard for 'devel-hourly-2014052115'
git bisect good 4b660a7f5c8099d88d1a43d8ae138965112592c7 # 09:59 60+ 0 Linux 3.15-rc6
git bisect good 18e072998c67e985aaa643ca1af3e6a0dc133b71 # 11:54 60+ 60 Add linux-next specific files for 20140521
This script may reproduce the error.
-----------------------------------------------------------------------------
#!/bin/bash
kernel=$1
kvm=(
qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel $kernel
-smp 2
-m 256M
-net nic,vlan=0,macaddr=00:00:00:00:00:00,model=virtio
-net user,vlan=0
-net nic,vlan=1,model=e1000
-net user,vlan=1
-boot order=nc
-no-reboot
-watchdog i6300esb
-serial stdio
-display none
-monitor null
)
append=(
debug
sched_debug
apic=debug
ignore_loglevel
sysrq_always_enabled
panic=10
prompt_ramdisk=0
earlyprintk=ttyS0,115200
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
)
"${kvm[@]}" --append "${append[*]}"
-----------------------------------------------------------------------------
Thanks,
Jet
View attachment "dmesg-quantal-ivb42-112:20140522085222:i386-randconfig-c0-05211630:3.15.0-rc4-00068-g78ff4be:2" of type "text/plain" (143648 bytes)
Download attachment "i386-randconfig-c0-05211630-842390939e8dc18fe8a87e257e7e8088548bd8d7-WARNING:---at----batadv_is_on_batman_iface+-x-129926.log" of type "application/octet-stream" (39625 bytes)
View attachment "config-3.15.0-rc4-00068-g78ff4be" of type "text/plain" (112561 bytes)
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