** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Bionic)
Status: New => Triaged
** Changed in: linux (Ubuntu)
Status: Incomplete => Triaged
** Changed in: linux (Ubuntu Bionic)
Importance: Undecided => High
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https://bugs.launchpad.net/bugs/1787469
Title:
[Bionic] integrate upstream fix for Cavium zram driver
Status in linux package in Ubuntu:
Triaged
Status in linux source package in Bionic:
Triaged
Bug description:
[Impact]
Revert Sauce patches and integrate upstream fix for thunderx_zip hang.
[Test]
ubuntu@anuchin:~$ uname -a
Linux anuchin 4.15.0-33-generic #36~lp1787469+build.1 SMP Thu Aug 16 19:43:58
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 1.44.1 (24-Mar-2018)
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:~#
[Fix]
e7a9b05ca4c7 crypto: cavium - Fix smp_processor_id() warnings
1cc7e01ff977 crypto: cavium - Fix statistics pending request value
a40c88045506 crypto: cavium - Prevent division by zero
c782a8c43e94 crypto: cavium - Limit result reading attempts
37ff02acaa3d crypto: cavium - Fix fallout from CONFIG_VMAP_STACK
[Regression Potential]
These patches are limited to Cavium zip_crypto zram driver, and does not
touch any other platform code. Also, these changes are limited to the ThunderX
systems. Regression potential low.
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