Ubuntu
linux package

  1. Bionic (18.04)
  2. Bug #1755073
  3. Comment #17

Comment 17 for bug 1755073

Revision history for this message
Manoj Iyer (manjo) wrote :

-- before proposed --
Ubuntu 17.10 (GNU/Linux 4.13.0-38-generic aarch64)
ubuntu@anuchin:~$ sudo bash
root@anuchin:~# modprobe zram
root@anuchin:~# echo 1 > /sys/block/zram0/reset
root@anuchin:~# echo deflate > /sys/block/zram0/comp_algorithm
root@anuchin:~# echo 128M > /sys/block/zram0/disksize
root@anuchin:~# mkfs.ext4 -F /dev/zram0
mke2fs 1.43.5 (04-Aug-2017)
Discarding device blocks: done
Creating filesystem with 32768 4k blocks and 32768 inodes

Allocating group tables: done
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information:

manjo@lazy:~$ ipmitool -H 10.229.48.14 -I lanplus -U admin -P admin sol activate
[SOL Session operational. Use ~? for help]
[ 1420.012055] watchdog: BUG: soft lockup - CPU#14 stuck for 22s! [mkfs.ext4:3121]
[ 1424.023938] watchdog: BUG: soft lockup - CPU#40 stuck for 23s! [kworker/u96:2:406]
[ 1454.099071] INFO: rcu_sched self-detected stall on CPU
[ 1454.104260] 14-...: (14998 ticks this GP) idle=796/140000000000001/0 softirq=4896/4896 fqs=7500
[ 1454.107070] INFO: rcu_sched detected stalls on CPUs/tasks:
[ 1454.107076] 14-...: (14998 ticks this GP) idle=796/140000000000001/0 softirq=4896/4896 fqs=7500
[ 1454.107077] (detected by 40, t=15002 jiffies, g=3929, c=3928, q=4597)
[ 1454.134272] (t=15008 jiffies g=3929 c=3928 q=4597)

-- after proposed --
ubuntu@anuchin:~$ uname -a
Linux anuchin 4.13.0-39-generic #44-Ubuntu SMP Thu Apr 5 14:20:13 UTC 2018 aarch64 aarch64 aarch64 GNU/Linux
ubuntu@anuchin:~$ sudo bash
root@anuchin:~# modprobe zram
root@anuchin:~# echo 1 > /sys/block/zram0/reset
root@anuchin:~# echo deflate > /sys/block/zram0/comp_algorithm
root@anuchin:~# echo 128M > /sys/block/zram0/disksize
root@anuchin:~# mkfs.ext4 -F /dev/zram0
mke2fs 1.43.5 (04-Aug-2017)
Discarding device blocks: done
Creating filesystem with 32768 4k blocks and 32768 inodes

Allocating group tables: done
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done

root@anuchin:~#