[lkp] [mm, page_alloc] 43993977ba: +88% OOM possibility
From: kernel test robot
Date: Wed Oct 28 2015 - 01:36:15 EST
FYI, we noticed the below changes on
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit 43993977baecd838d66ccabc7f682342fc6ff635 ("mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd")
We found the OOM possibility increased 88% in a virtual machine with 1G memory.
=========================================================================================
tbox_group/testcase/rootfs/kconfig/compiler/disk/fs/test:
vm-kbuild-1G/xfstests/debian-x86_64-2015-02-07.cgz/x86_64-allyesdebian/gcc-4.9/4HDD/btrfs/generic-mid
commit:
74fad8a3a917b9e0a407af8a4150c61f7b836591
43993977baecd838d66ccabc7f682342fc6ff635
74fad8a3a917b9e0 43993977baecd838d66ccabc7f
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
1:24 -4% :24 xfstests.generic.192.fail
1:24 -4% :24 xfstests.nr_fail
:24 88% 21:24 dmesg.Mem-Info
:24 62% 15:24 dmesg.page_allocation_failure:order:#,mode
:24 88% 21:24 dmesg.warn_alloc_failed+0x
:24 75% 18:24 last_state.is_incomplete_run
1:24 -4% :24 last_state.xfstests.exit_code.1
:24 54% 13:24 last_state.xfstests.exit_code.143
:24 71% 17:24 kmsg.SLAB:Unable_to_allocate_memory_on_node#(gfp=#)
1:24 -4% :24 kmsg.TDH<#>
1:24 -4% :24 kmsg.TDH<c7>
1:24 -4% :24 kmsg.TDT<#>
1:24 -4% :24 kmsg.TDT<c7>
1:24 -4% :24 kmsg.Tx_Queue<#>
1:24 -4% :24 kmsg.buffer_info[next_to_clean]
1:24 -4% :24 kmsg.e1000#:#:#eth0:Detected_Tx_Unit_Hang
1:24 -4% :24 kmsg.jiffies<#>
1:24 -4% :24 kmsg.jiffies<#c5c>
1:24 -4% :24 kmsg.next_to_clean<#>
1:24 -4% :24 kmsg.next_to_clean<c7>
1:24 -4% :24 kmsg.next_to_use<#>
1:24 -4% :24 kmsg.next_to_use<c9>
1:24 -4% :24 kmsg.next_to_watch.status<#>
1:24 -4% :24 kmsg.next_to_watch<#>
1:24 -4% :24 kmsg.next_to_watch<c8>
1:24 -4% :24 kmsg.time_stamp<#>
1:24 -4% :24 kmsg.time_stamp<#afd>
vm-kbuild-1G: qemu-system-x86_64 -enable-kvm -cpu Haswell,+smep,+smap
Memory: 1G
To reproduce:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
Thanks,
Ying Huang
---
LKP_SERVER: inn
LKP_CGI_PORT: 80
LKP_CIFS_PORT: 139
testcase: xfstests
default-monitors:
wait: activate-monitor
kmsg:
vmstat:
interval: 10
default-watchdogs:
oom-killer:
watchdog:
cpufreq_governor:
model: qemu-system-x86_64 -enable-kvm -cpu Haswell,+smep,+smap
nr_vm: 16
nr_cpu: 2
memory: 1G
disk_type: virtio-scsi
rootfs: debian-x86_64-2015-02-07.cgz
hdd_partitions: "/dev/sda /dev/sdb /dev/sdc /dev/sdd"
swap_partitions: "/dev/sde"
ssh_base_port: 23000
category: functional
disk: 4HDD
fs: btrfs
xfstests:
test: generic-mid
enqueue_time: 2015-10-19 23:36:05.806413316 +08:00
branch: linux-review/Richard-Fitzgerald/Add-support-for-Cirrus-Logic-CS47L24-and-WM1831-codecs/20151019-221754
commit: 70e25d9e15fdae345ae7499131c643db506d08e0
queue: rand
repeat_to: 2
testbox: vm-kbuild-1G-11
tbox_group: vm-kbuild-1G
kconfig: x86_64-allyesdebian
id: 64d645db367175db708ac69d321aa547a7f23900
user: lkp
compiler: gcc-4.9
kernel: "/pkg/linux/x86_64-allyesdebian/gcc-4.9/70e25d9e15fdae345ae7499131c643db506d08e0/vmlinuz-4.3.0-rc5-next-20151016-00003-g70e25d9"
result_root: "/result/xfstests/4HDD-btrfs-generic-mid/vm-kbuild-1G/debian-x86_64-2015-02-07.cgz/x86_64-allyesdebian/gcc-4.9/70e25d9e15fdae345ae7499131c643db506d08e0/0"
job_file: "/lkp/scheduled/vm-kbuild-1G-11/rand_xfstests-4HDD-btrfs-generic-mid-debian-x86_64.cgz-x86_64-allyesdebian-70e25d9e15fdae345ae7499131c643db506d08e0-20151019-128924-ut9rnp-0.yaml"
dequeue_time: 2015-10-20 00:24:58.505681006 +08:00
max_uptime: 3600
initrd: "/osimage/debian/debian-x86_64-2015-02-07.cgz"
bootloader_append:
- root=/dev/ram0
- user=lkp
- job=/lkp/scheduled/vm-kbuild-1G-11/rand_xfstests-4HDD-btrfs-generic-mid-debian-x86_64.cgz-x86_64-allyesdebian-70e25d9e15fdae345ae7499131c643db506d08e0-20151019-128924-ut9rnp-0.yaml
- ARCH=x86_64
- kconfig=x86_64-allyesdebian
- branch=linux-review/Richard-Fitzgerald/Add-support-for-Cirrus-Logic-CS47L24-and-WM1831-codecs/20151019-221754
- commit=70e25d9e15fdae345ae7499131c643db506d08e0
- BOOT_IMAGE=/pkg/linux/x86_64-allyesdebian/gcc-4.9/70e25d9e15fdae345ae7499131c643db506d08e0/vmlinuz-4.3.0-rc5-next-20151016-00003-g70e25d9
- max_uptime=3600
- RESULT_ROOT=/result/xfstests/4HDD-btrfs-generic-mid/vm-kbuild-1G/debian-x86_64-2015-02-07.cgz/x86_64-allyesdebian/gcc-4.9/70e25d9e15fdae345ae7499131c643db506d08e0/0
- LKP_SERVER=inn
- |2-
earlyprintk=ttyS0,115200 systemd.log_level=err
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
rw
lkp_initrd: "/lkp/lkp/lkp-x86_64.cgz"
modules_initrd: "/pkg/linux/x86_64-allyesdebian/gcc-4.9/70e25d9e15fdae345ae7499131c643db506d08e0/modules.cgz"
bm_initrd: "/osimage/deps/debian-x86_64-2015-02-07.cgz/lkp.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/run-ipconfig.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/fs.cgz,/lkp/benchmarks/xfstests.cgz"
job_state: upload_dmesg
mkfs -t btrfs /dev/sdd
mkfs -t btrfs /dev/sdb
mkfs -t btrfs /dev/sda
mkfs -t btrfs /dev/sdc
mount -t btrfs /dev/sda /fs/sda
mount -t btrfs /dev/sdb /fs/sdb
mount -t btrfs /dev/sdc /fs/sdc
mount -t btrfs /dev/sdd /fs/sdd
export TEST_DIR=/fs/sda
export TEST_DEV=/dev/sda
export FSTYP=btrfs
export SCRATCH_MNT=/fs/scratch
mkdir /fs/scratch -p
export SCRATCH_DEV_POOL="/dev/sdb /dev/sdc /dev/sdd"
./check generic/068 generic/100 generic/117 generic/120 generic/125 generic/130 generic/192 generic/209 generic/223 generic/225 generic/226 generic/230 generic/241 generic/247 generic/256 generic/275