------- Comment From [email protected] 2019-05-20 15:09 EDT------- I tried that kernel out and it works: root@ltc-boston25:/home/ubuntu/comp_selftest# cat /proc/version Linux version 4.15.0-51-generic (buildd@bos02-ppc64el-003) (gcc version 7.4.0 (Ubuntu 7.4.0-1ubuntu1~18.04)) #55~lp1827755+build.1-Ubuntu SMP Fri May 17 18:53:29 UTC 2019 root@ltc-boston25:/home/ubuntu/comp_selftest# insmod comp_selftest.ko root@ltc-boston25:/home/ubuntu/comp_selftest# ./testit root@ltc-boston25:/home/ubuntu/comp_selftest# dmesg |tail <snip> [ 354.958178] comp_selftest: loading out-of-tree module taints kernel. [ 354.958396] comp_selftest: module verification failed: signature and/or required key missing - tainting kernel [ 361.124620] compression self test starting [ 361.124623] compressor: 842-nx [ 361.124624] repeat: Y [ 361.124625] threads: 16 [ 361.124627] offsets 0-0/1, 0-0/1, 0-0/1 [ 361.124630] lengths 10000-10000/1, 10000-10000/1, 10000-10000/1 root@ltc-boston25:/home/ubuntu/comp_selftest# cat /sys/kernel/debug/comp_selftest/status ^Creads 16 MBps: 45192/39510 peak 45509/43884 off 0/0/0 len 10000/10000/10000 root@ltc-boston25:/home/ubuntu/comp_selftest#
Where comp_selftest is the comp_selftest.c/README located here: https://github.com/sukadev/linux/tree/ee0c8b0c3dcb8856c5998ac21e01916ea430f687/crypto/comp_selftest and testit is just a copy/paste from the README of the commands to get the test running (up to status). -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1827755 Title: nx842 - CRB request time out (-110) when uninstall NX modules and initiate NX request Status in The Ubuntu-power-systems project: Incomplete Status in linux package in Ubuntu: Incomplete Bug description: ---Problem Description--- Normally nx-compress and nx-842-powernv modules are loaded when selects 842-nx compressor if not loaded and execute forever during system execution. So we will not see this bug in normal case. But we are seeing NX CRB request timeout when uninstall these modules and load them or select 842-nx compressor. ---uname output--- 18.04 Machine Type = P9 system ---Steps to Reproduce--- - Install nx-compress and nx-842-powernv modules - Initiate NX request - Uninstall these modules - Initiate NX request again and we get CRB timeout with error -110 Patches are included in 4.19-rc1 6e708000ec2c93c2bde6a46aa2d6c3e80d4eaeb9 - powerpc/powernv: Export opal_check_token symbol 656ecc16e8fc2ab44b3d70e3fcc197a7020d0ca5 - crypto/nx: Initialize 842 high and normal RxFIFO control registers > Looks like the first commit was included in a recent 18.04 update > (4.15.0-48.51), see > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819989 > > but I don't see the second one there yet. > > If this is still needed, I would suggest getting this bug mirrored to LP to > put on Canonical's radar. We need second commit (656ecc16e8fc2ab44b3d70e3fcc197a7020d0ca) to fix this actual issue. But no use of having the first commit without second one. The first one just exports opal_check_token symbol which is used in the second commit. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1827755/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
