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Date: Sat, 27 Dec 2014 16:38:38 -0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Johannes Berg <johannes.berg@...el.com>
Cc: LKP <lkp@...org>, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [genetlink] WARNING: CPU: 0 PID: 109 at net/netlink/genetlink.c:1011
genl_bind()
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
commit c380d9a7afff0e4c2e5f3c1c2dc7d2f4214dd962
Author: Johannes Berg <johannes.berg@...el.com>
AuthorDate: Tue Dec 23 20:54:40 2014 +0100
Commit: David S. Miller <davem@...emloft.net>
CommitDate: Sat Dec 27 02:20:23 2014 -0500
genetlink: pass multicast bind/unbind to families
In order to make the newly fixed multicast bind/unbind
functionality in generic netlink, pass them down to the
appropriate family.
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
+---------------------------------------------------+------------+------------+------------+
| | 7d68536bed | c380d9a7af | bdf7b239ea |
+---------------------------------------------------+------------+------------+------------+
| boot_successes | 279 | 34 | 0 |
| boot_failures | 0 | 59 | 12 |
| WARNING:at_net/netlink/genetlink.c:#genl_bind() | 0 | 59 | 12 |
| WARNING:at_net/netlink/genetlink.c:#genl_unbind() | 0 | 59 | 12 |
| backtrace:netlink_bind | 0 | 59 | 12 |
| backtrace:SyS_bind | 0 | 59 | 12 |
| backtrace:do_group_exit | 0 | 59 | 12 |
| backtrace:SyS_exit_group | 0 | 59 | 12 |
| backtrace:netlink_setsockopt | 0 | 15 | 4 |
| backtrace:SyS_setsockopt | 0 | 15 | 4 |
+---------------------------------------------------+------------+------------+------------+
/bin/sh: /proc/self/fd/9: No such file or directory
/bin/sh: /proc/self/fd/9: No such file or directory
[ 17.673482] ------------[ cut here ]------------
[ 17.674874] WARNING: CPU: 0 PID: 109 at net/netlink/genetlink.c:1011 genl_bind+0x142/0x15e()
[ 17.676682] CPU: 0 PID: 109 Comm: trinity-main Not tainted 3.18.0-11169-gc380d9a #9
[ 17.678005] 0000000000000009 ffff88000b44fdd8 ffffffff8175b593 ffff88000b44fe18
[ 17.679450] ffffffff810b55aa 0000000000000000 ffffffff8174d931 ffffffff834a3400
[ 17.680929] 0000000000000000 0000000000000000 0000000000000000 ffff88000b44fe28
[ 17.682377] Call Trace:
[ 17.682820] [<ffffffff8175b593>] dump_stack+0x2e/0x3e
[ 17.683753] [<ffffffff810b55aa>] warn_slowpath_common+0xb6/0xe5
[ 17.684801] [<ffffffff8174d931>] ? genl_bind+0x142/0x15e
[ 17.685797] [<ffffffff810b56db>] warn_slowpath_null+0x23/0x2c
[ 17.686930] [<ffffffff8174d931>] genl_bind+0x142/0x15e
[ 17.688149] [<ffffffff8174ab86>] netlink_bind+0x155/0x2ce
[ 17.689413] [<ffffffff8170e512>] SyS_bind+0xc1/0x117
[ 17.690564] [<ffffffff81769058>] ? _raw_spin_unlock+0x38/0x50
[ 17.691875] [<ffffffff8114553f>] ? context_tracking_user_exit+0xe2/0x101
[ 17.693471] [<ffffffff810eafbd>] ? trace_hardirqs_on+0x1b/0x24
[ 17.694823] [<ffffffff8176a2e7>] system_call_fastpath+0x12/0x17
[ 17.696182] ---[ end trace f8ae22d84a926b3f ]---
[ 17.697267] ------------[ cut here ]------------
git bisect start bdf7b239ea04ec0372de511b630858d31ce0a27d 97bf6af1f928216fd6c5a66e8a57bfa95a659672 --
git bisect good 353ffe5824fadf421e54334766749a621875bf25 # 17:12 85+ 0 Merge 'iio/testing' into devel-lkp-nhm1-smoke-201412271621
git bisect bad e110b301867f3479fe39b036cd25c8dd9587a348 # 17:12 0- 9 Merge 'vfs/for-linus' into devel-lkp-nhm1-smoke-201412271621
git bisect bad b15800a33d77b5efeb46467961694acc3b9a86f5 # 17:17 9- 5 Merge 'net/master' into devel-lkp-nhm1-smoke-201412271621
git bisect good e88bf5beea5b1cf596aec20cbe298080ee5c56ba # 17:20 93+ 0 Merge 'arm-integrator/realview-dt' into devel-lkp-nhm1-smoke-201412271621
git bisect good ec449f40bb3e19c77f62ddabf7c1fe3ccefece6f # 17:25 93+ 0 openvswitch: Fix MPLS action validation.
git bisect good 5f35227ea34bb616c436d9da47fc325866c428f3 # 17:31 93+ 0 net: Generalize ndo_gso_check to ndo_features_check
git bisect good b63a2a1ff1f7cde479aef091a4b9a9f7238a0657 # 17:37 93+ 0 Merge tag 'wireless-drivers-for-davem-2014-12-26' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
git bisect good b10dcb3b94010e3ac3951f68789400b1665effb1 # 17:42 93+ 0 netlink: update listeners directly when removing socket
git bisect bad 24f626d3439f61d87fca0c0c07f614fba41a4e92 # 17:45 15- 10 Merge branch 'netlink_multicast'
git bisect bad c380d9a7afff0e4c2e5f3c1c2dc7d2f4214dd962 # 17:49 13- 33 genetlink: pass multicast bind/unbind to families
git bisect good 7d68536bed72b09de03b07479dd707c5831b3b94 # 17:56 93+ 0 netlink: call unbind when releasing socket
# first bad commit: [c380d9a7afff0e4c2e5f3c1c2dc7d2f4214dd962] genetlink: pass multicast bind/unbind to families
git bisect good 7d68536bed72b09de03b07479dd707c5831b3b94 # 17:59 279+ 0 netlink: call unbind when releasing socket
# extra tests with DEBUG_INFO
git bisect good c380d9a7afff0e4c2e5f3c1c2dc7d2f4214dd962 # 18:08 279+ 0 genetlink: pass multicast bind/unbind to families
# extra tests on HEAD of linux-devel/devel-lkp-nhm1-smoke-201412271621
git bisect bad bdf7b239ea04ec0372de511b630858d31ce0a27d # 18:08 0- 12 0day head guard for 'devel-lkp-nhm1-smoke-201412271621'
# extra tests on tree/branch linux-devel/devel-hourly-2014122715
git bisect bad 462a586c1d24c1935547379c98d99e96d83c7b8f # 18:55 7- 29 0day head guard for 'devel-hourly-2014122715'
# extra tests on tree/branch linus/master
git bisect good 58628a7831edac5f7a13baa9d9320c758c5204c8 # 19:02 279+ 0 Merge branch 'parisc-3.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
# extra tests on tree/branch next/master
git bisect good 2fb8bdb2ca2808ce901fdfc1eda31bcb488156d0 # 19:07 279+ 0 Add linux-next specific files for 20141226
This script may reproduce the error.
----------------------------------------------------------------------------
#!/bin/bash
kernel=$1
initrd=quantal-core-x86_64.cgz
wget --no-clobber https://github.com/fengguang/reproduce-kernel-bug/raw/master/initrd/$initrd
kvm=(
qemu-system-x86_64
-cpu kvm64
-enable-kvm
-kernel $kernel
-initrd $initrd
-m 320
-smp 2
-net nic,vlan=1,model=e1000
-net user,vlan=1
-boot order=nc
-no-reboot
-watchdog i6300esb
-rtc base=localtime
-serial stdio
-display none
-monitor null
)
append=(
hung_task_panic=1
earlyprintk=ttyS0,115200
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
drbd.minor_count=8
)
"${kvm[@]}" --append "${append[*]}"
----------------------------------------------------------------------------
Thanks,
Fengguang
View attachment "dmesg-quantal-client7-25:20141227174912:x86_64-randconfig-n0-12271619:3.18.0-11169-gc380d9a:9" of type "text/plain" (259375 bytes)
View attachment "config-3.18.0-11169-gc380d9a" of type "text/plain" (70782 bytes)
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