------- Comment From [email protected] 2016-01-11 01:01 EDT-------
I have installed 3.18 kernel provided in the link:
https://launchpad.net/ubuntu/+source/linux/3.18.0-8.9/+build/6690705
root@powerkvmpok002:~/6690705# dpkg -i
linux-image-3.18.0-8-generic_3.18.0-8.9_ppc64el.deb
Selecting previously unselected package linux-image-3.18.0-8-generic.
(Reading database ... 164194 files and directories currently installed.)
Preparing to unpack linux-image-3.18.0-8-generic_3.18.0-8.9_ppc64el.deb ...
Done.
Unpacking linux-image-3.18.0-8-generic (3.18.0-8.9) ...
Setting up linux-image-3.18.0-8-generic (3.18.0-8.9) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.18.0-8-generic
/boot/vmlinux-3.18.0-8-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.18.0-8-generic
/boot/vmlinux-3.18.0-8-generic
update-initramfs: Generating /boot/initrd.img-3.18.0-8-generic
run-parts: executing /etc/kernel/postinst.d/update-notifier 3.18.0-8-generic
/boot/vmlinux-3.18.0-8-generic
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.18.0-8-generic
/boot/vmlinux-3.18.0-8-generic
Generating grub configuration file ...
Found linux image: /boot/vmlinux-4.4.0-040400rc4-generic
Found initrd image: /boot/initrd.img-4.4.0-040400rc4-generic
Found linux image: /boot/vmlinux-3.19.0-41-generic
Found initrd image: /boot/initrd.img-3.19.0-41-generic
Found linux image: /boot/vmlinux-3.19.0-39-generic
Found initrd image: /boot/initrd.img-3.19.0-39-generic
Found linux image: /boot/vmlinux-3.18.0-8-generic
Found initrd image: /boot/initrd.img-3.18.0-8-generic
Found linux image: /boot/vmlinux-3.13.0-10-generic
Found initrd image: /boot/initrd.img-3.13.0-10-generic
Found Debian GNU/Linux (8.2) on /dev/sdb2
Found unknown Linux distribution on
/dev/mapper/ibmpkvm_vg_root01-ibmpkvm_lv_system
done
root@powerkvmpok002:~# uname -a
Linux powerkvmpok002 3.18.0-8-generic #9-Ubuntu SMP Mon Jan 5 22:52:15 UTC 2015
ppc64le ppc64le ppc64le GNU/Linux
Then executed the lock_torture tests again on the 3.18 Vivid kernel.
root@powerkvmpok002:~# cd /opt/ltp/testcases/bin/
root@powerkvmpok002:/opt/ltp/testcases/bin# ./lock_torture.sh
./lock_torture.sh: 55: ./lock_torture.sh: tst_kvercmp: not found
[ 148.177770] NMI watchdog: BUG: soft lockup - CPU#100 stuck for 23s!
[lock_torture_wr:2994]
[ 148.177773] NMI watchdog: BUG: soft lockup - CPU#101 stuck for 23s!
[lock_torture_wr:2986]
[ 148.177775] NMI watchdog: BUG: soft lockup - CPU#99 stuck for 23s!
[lock_torture_wr:2960]
[ 148.177780] NMI watchdog: BUG: soft lockup - CPU#102 stuck for 23s!
[lock_torture_wr:2999]
[ 148.177783] NMI watchdog: BUG: soft lockup - CPU#103 stuck for 23s!
[lock_torture_wr:2995]
[ 148.181769] NMI watchdog: BUG: soft lockup - CPU#104 stuck for 23s!
[lock_torture_wr:2987]
[ 148.185771] NMI watchdog: BUG: soft lockup - CPU#107 stuck for 23s!
[lock_torture_wr:2990]
[ 148.185774] NMI watchdog: BUG: soft lockup - CPU#106 stuck for 23s!
[lock_torture_wr:2992]
[ 148.189769] NMI watchdog: BUG: soft lockup - CPU#108 stuck for 23s!
[lock_torture_wr:2984]
[ 148.189773] NMI watchdog: BUG: soft lockup - CPU#110 stuck for 23s!
[lock_torture_wr:2983]
[ 148.189775] NMI watchdog: BUG: soft lockup - CPU#109 stuck for 23s!
[lock_torture_wr:2989]
[ 148.189787] NMI watchdog: BUG: soft lockup - CPU#111 stuck for 23s!
[lock_torture_wr:2988]
[ 148.193770] NMI watchdog: BUG: soft lockup - CPU#113 stuck for 23s!
[lock_torture_wr:3023]
[ 148.193773] NMI watchdog: BUG: soft lockup - CPU#112 stuck for 23s!
[lock_torture_wr:3000]
[ 148.197768] NMI watchdog: BUG: soft lockup - CPU#115 stuck for 23s!
[lock_torture_wr:3017]
[ 204.521765] INFO: rcu_sched self-detected stall on CPU
[ 204.521768] INFO: rcu_sched self-detected stall on CPU
[ 204.521780] INFO: rcu_sched self-detected stall on CPU { 71}
[ 204.521793] INFO: rcu_sched self-detected stall on CPU { 39}
[ 204.521794] INFO: rcu_sched self-detected stall on CPU
[ 204.521794] INFO: rcu_sched self-detected stall on CPU
The above messages are displayed immediately on the console once the
tests are started.
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https://bugs.launchpad.net/bugs/1483343
Title:
NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr
tests
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