app-containers/docker-20.10.22 requires CONFIG_MEMCG_SWAP kernel configuraton variable to be enabled. There is not such config option in the latest sys-kernel/gentoo-kernel-6.1.3. Reproducible: Always Steps to Reproduce: 1. ACCEPT_KEYWORDS="~amd64" emerge \=sys-kernel/gentoo-kernel-6.1.3 2. eselect kernel set linux-6.1.3-gentoo-dist 3. emerge app-containers/docker 4. grep CONFIG_MEMCG_SWAP /etc/portage/savedconfig/sys-kernel/gentoo-kernel-6.1.3 Actual Results: After step 3: * Messages for package app-containers/docker-20.10.22: * Log file: /var/tmp/portage/logs/app-containers:docker-20.10.22:20230105-235121.log * CONFIG_MEMCG_SWAP: is required if you wish to limit swap usage of containers * Please check to make sure these options are set correctly. * Failure to do so may cause unexpected problems. Step 4 (grep) returns nothing. Expected Results: Such warning to be omitted if the config option does not exist.
Created attachment 847654 [details] emerge --info output
Created attachment 847656 [details] /etc/portage/savedconfig/sys-kernel/gentoo-kernel-6.1.3
Created attachment 847658 [details] /etc/portage/savedconfig/sys-kernel/gentoo-kernel-6.1.3 Replace previous kernel config attachment, due to wrong mime type detection.
The above URL points to the upstream commit that removed the (unused) CONFIG_MEMCG_SWAP variable as part of the 6.1 release. It also explains why it is obsolete: > Since 2d1c498072de ("mm: memcontrol: make swap tracking an integral part > of memory control"), CONFIG_MEMCG_SWAP hasn't been a user-visible config > option anymore, it just means CONFIG_MEMCG && CONFIG_SWAP
Thank you for providing analysis as well as the initial report.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=4ecb10dfa3683da470e48d3404bbafc88e43020c commit 4ecb10dfa3683da470e48d3404bbafc88e43020c Author: William Hubbs <williamh@gentoo.org> AuthorDate: 2023-01-07 19:29:04 +0000 Commit: William Hubbs <williamh@gentoo.org> CommitDate: 2023-01-07 19:33:38 +0000 app-containers/docker: adjust kernel checks The CONFIG_MEMCG_SWAP kernel option was removed in linux 6.1, so adjust the check to account for this. Closes: https://bugs.gentoo.org/889932 Signed-off-by: William Hubbs <williamh@gentoo.org> app-containers/docker/docker-20.10.22.ebuild | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
