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Message-ID: <20190221133259.74etmwq7gadltqew@inn2.lkp.intel.com>
Date: Thu, 21 Feb 2019 21:32:59 +0800
From: kernel test robot <lkp@...el.com>
To: Kefeng Wang <wangkefeng.wang@...wei.com>
Cc: netdev@...r.kernel.org, Willem de Bruijn <willemb@...gle.com>,
"David S . Miller" <davem@...emloft.net>,
Jay Vosburgh <j.vosburgh@...il.com>,
Veaceslav Falico <vfalico@...il.com>,
Eric Dumazet <edumazet@...gle.com>, weiyongjun1@...wei.com,
Kefeng Wang <wangkefeng.wang@...wei.com>, lkp@...org
Subject: [bonding] 86838ad7bd:
BUG:sleeping_function_called_from_invalid_context_at_kernel/locking/mutex.c
FYI, we noticed the following commit (built with gcc-8):
commit: 86838ad7bde0d7741b272670d94d535580173d95 ("[RFC PATCH] bonding: use mutex lock in bond_get_stats()")
url: https://github.com/0day-ci/linux/commits/Kefeng-Wang/bonding-use-mutex-lock-in-bond_get_stats/20190216-030058
in testcase: rcutorture
with following parameters:
runtime: 300s
test: cpuhotplug
torture_type: srcu
test-description: rcutorture is rcutorture kernel module load/unload test.
test-url: https://www.kernel.org/doc/Documentation/RCU/torture.txt
on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 1G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+-----------------------------------------------------------------------------+------------+------------+
| | f9bcc9f3ee | 86838ad7bd |
+-----------------------------------------------------------------------------+------------+------------+
| boot_successes | 50 | 24 |
| boot_failures | 10 | 41 |
| invoked_oom-killer:gfp_mask=0x | 1 | |
| Mem-Info | 1 | |
| Out_of_memory:Kill_process | 1 | |
| BUG:kernel_in_stage | 6 | 8 |
| BUG:kernel_reboot-without-warning_in_early-boot_stage | 2 | |
| BUG:kernel_hang_in_test_stage | 1 | 1 |
| BUG:sleeping_function_called_from_invalid_context_at_kernel/locking/mutex.c | 0 | 32 |
+-----------------------------------------------------------------------------+------------+------------+
[ 17.153431] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:908
[ 17.157556] in_atomic(): 0, irqs_disabled(): 0, pid: 599, name: dropbearkey
[ 17.159141] 2 locks held by dropbearkey/599:
[ 17.159779] #0: (____ptrval____) (&p->lock){+.+.}, at: seq_read+0x41/0x3f0
[ 17.160802] #1: (____ptrval____) (rcu_read_lock){....}, at: dev_seq_start+0x5/0x110
[ 17.161928] Preemption disabled at:
[ 17.161935] [<ffffffff818eafe0>] __mutex_lock+0x50/0x980
[ 17.163150] CPU: 1 PID: 599 Comm: dropbearkey Not tainted 5.0.0-rc5-00320-g86838ad #1
[ 17.164213] Call Trace:
[ 17.164571] dump_stack+0x67/0x90
[ 17.165051] ___might_sleep.cold.14+0xf0/0x106
[ 17.165675] ? bond_get_stats+0x3b/0x260
[ 17.166232] __mutex_lock+0x46/0x980
[ 17.166743] ? kvm_clock_read+0x14/0x30
[ 17.167288] ? validate_chain+0xb5/0xad0
[ 17.167936] ? number+0x2fc/0x340
[ 17.168416] ? bond_get_stats+0x3b/0x260
[ 17.168966] bond_get_stats+0x3b/0x260
[ 17.169500] ? seq_vprintf+0x30/0x50
[ 17.170007] ? seq_printf+0x43/0x50
[ 17.170498] ? validate_chain+0xb5/0xad0
[ 17.171136] ? dev_seq_printf_stats+0x9a/0xb0
[ 17.171736] dev_get_stats+0x55/0xb0
[ 17.172221] dev_seq_printf_stats+0x1f/0xb0
[ 17.172817] dev_seq_show+0x10/0x30
[ 17.173289] seq_read+0x2cd/0x3f0
[ 17.173777] proc_reg_read+0x36/0x60
[ 17.174288] __vfs_read+0x23/0x160
[ 17.174779] ? _copy_to_user+0x5e/0x70
[ 17.175312] ? entry_INT80_compat+0x7c/0x90
[ 17.175903] vfs_read+0xa6/0x140
[ 17.176366] ksys_read+0x42/0xa0
[ 17.176834] do_int80_syscall_32+0x4f/0x150
[ 17.177418] entry_INT80_compat+0x84/0x90
LKP: HOSTNAME vm-snb-openwrt-ia32-524, MAC , kernel 5.0.0-rc5-00320-g86838ad 1, serial console /dev/ttyS0
[ 18.404764] Kernel tests: Boot OK!
[ 18.404764] LKP: waiting for network...
[ 19.256982] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[ 19.271235] _warn_unseeded_randomness: 1329 callbacks suppressed
[ 19.271244] random: get_random_u64 called from arch_pick_mmap_layout+0x65/0x170 with crng_init=0
[ 19.273507] random: get_random_u64 called from arch_pick_mmap_layout+0x10e/0x170 with crng_init=0
[ 19.274790] random: get_random_u64 called from load_elf_binary+0x87d/0x1120 with crng_init=0
[ 20.407748] /lkp/lkp/src/bin/run-lkp
[ 20.407748] RESULT_ROOT=/result/rcutorture/300s-cpuhotplug-srcu/vm-snb-openwrt-ia32/openwrt-i386-2016-03-16.cgz/x86_64-randconfig-s4-02200400/gcc-8/86838ad7bde0d7741b272670d94d535580173d95/3
[ 20.407748] job=/lkp/jobs/scheduled/vm-snb-openwrt-ia32-524/rcutorture-300s-cpuhotplug-srcu-openwrt-i386-2016-03-16.cgz-20190220-89648-gjivxf-3.yaml
[ 20.407748] run-job /lkp/jobs/scheduled/vm-snb-openwrt-ia32-524/rcutorture-300s-cpuhotplug-srcu-openwrt-i386-2016-03-16.cgz-20190220-89648-gjivxf-3.yaml
[ 20.407748] /bin/busybox wget -q http://inn:80/~lkp/cgi-bin/lkp-jobfile-append-var?job_file=/lkp/jobs/scheduled/vm-snb-openwrt-ia32-524/rcutorture-300s-cpuhotplug-srcu-openwrt-i386-2016-03-16.cgz-20190220-89648-gjivxf-3.yaml&job_state=running -O /dev/null
[ 20.407748] target ucode:
[ 20.416008] wget: can't connect to remote host (192.168.1.1): Network is unreachable
[ 20.416008] /lkp/lkp/src/monitors/heartbeat: line 9: vmstat: not found
[ 20.416008] /lkp/lkp/src/monitors/heartbeat: exec: line 23: vmstat: not found
[ 20.678602] _warn_unseeded_randomness: 431 callbacks suppressed
[ 20.678610] random: get_random_u64 called from arch_pick_mmap_layout+0x65/0x170 with crng_init=0
[ 20.681816] random: get_random_u64 called from arch_pick_mmap_layout+0x10e/0x170 with crng_init=0
[ 20.683622] random: get_random_u64 called from load_elf_binary+0x87d/0x1120 with crng_init=0
[ 21.418765] BusyBox v1.23.2 (2016-01-02 14:31:17 CET) multi-call binary.
[ 21.418765]
[ 21.418765] Usage: time [-v] PROG ARGS
[ 21.418765]
[ 21.418765] Run PROG, display resource usage when it exits
[ 21.418765]
[ 21.418765] -v Verbose
[ 21.418765]
[ 21.418765] failed to load rcutorture module, try to enable CONFIG_RCU_TORTURE_TEST and build rcutorture.ko
[ 21.418765] wget: can't connect to remote host (192.168.1.1): Network is unreachable
[ 21.423344] 2019-02-20 06:29:25 modprobe rcutorture onoff_interval=3 onoff_holdoff=30 torture_type=srcu
[ 21.423344] /bin/busybox wget -q http://inn:80/~lkp/cgi-bin/lkp-jobfile-append-var?job_file=/lkp/jobs/scheduled/vm-snb-openwrt-ia32-524/rcutorture-300s-cpuhotplug-srcu-openwrt-i386-2016-03-16.cgz-20190220-89648-gjivxf-3.yaml&job_state=post_run -O /dev/null
[ 21.818029] _warn_unseeded_randomness: 210 callbacks suppressed
[ 21.818037] random: get_random_u64 called from arch_pick_mmap_layout+0x65/0x170 with crng_init=0
[ 21.821714] random: get_random_u64 called from arch_pick_mmap_layout+0x10e/0x170 with crng_init=0
[ 21.823918] random: get_random_u64 called from load_elf_binary+0x87d/0x1120 with crng_init=0
[ 22.190264] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[ 22.444763] kill 804 cat /proc/kmsg
[ 22.444763] wait for background processes: 812 810 oom-killer meminfo
Elapsed time: 20
qemu-img create -f qcow2 disk-vm-snb-openwrt-ia32-524-0 256G
qemu-img create -f qcow2 disk-vm-snb-openwrt-ia32-524-1 256G
kvm=(
qemu-system-x86_64
-enable-kvm
-cpu SandyBridge
-kernel $kernel
-initrd initrd-vm-snb-openwrt-ia32-524
-m 1024
-smp 2
-device e1000,netdev=net0
-netdev user,id=net0
-boot order=nc
-no-reboot
-watchdog i6300esb
-watchdog-action debug
-rtc base=localtime
-drive file=disk-vm-snb-openwrt-ia32-524-0,media=disk,if=virtio
-drive file=disk-vm-snb-openwrt-ia32-524-1,media=disk,if=virtio
-serial stdio
-display none
-monitor null
)
To reproduce:
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-5.0.0-rc5-00320-g86838ad" of type "text/plain" (131690 bytes)
View attachment "job-script" of type "text/plain" (4542 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (13216 bytes)
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