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bug#43078: linux-libre-arm64-generic lacks CONFIG_CGROUP_FREEZER=y

From: Tobias Geerinckx-Rice
Subject: bug#43078: linux-libre-arm64-generic lacks CONFIG_CGROUP_FREEZER=y
Date: Fri, 28 Aug 2020 00:57:28 +0200

Leo, Vits,

Leo Famulari 写道:
On Fri, Aug 28, 2020 at 01:52:58AM +0700, Vitaliy Shatrov wrote:
Hello Guix.

   1. had linux-libre-arm64-generic as my kernel.
2. added only (elogind-service-type) to my Guix System's config.
   3. ran `guix system reconfigure`.
4. get some errors: "///sys/something/freezer cannot be something".
   5. rebooted, and were unable to log-in (get no prompt).

The issue was solved by using the same linux-libre-arm64-generic, but
customized: i set a 'CONFIG_CGROUP_FREEZER=y' in kconfig.

This option is enabled in all of our kernel configurations:


Indeed, and the bug[0] reported here is that -generic doesn't use these configurations at all:

(define-public linux-libre-arm64-generic
 (make-linux-libre* linux-libre-version
                    #:defconfig "defconfig"
                    #:extra-version "arm64-generic"
`(;; needed to fix the RTC on rockchip platforms
                       ("CONFIG_RTC_DRV_RK808" . #t))

Note the missing #:configuration-file.

[0]: I don't know if this is really a bug--in fact I suspect it's the raison d'être of this variant--but this needs to be better documented and perhaps even renamed. To me, ‘generic’ means ‘distro default’, or perhaps ‘sanely minimal’, not ‘our own upstream's sometimes questionable defconfig that can't boot our own desktop’.


Kind regards,


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