Rebooting or powering down UEFI machine locks it up

DoneSubmitted by guixuser6392.
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3 participants
  • guixuser6392
  • Leo Famulari
  • Ludovic Courtès
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unassigned
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important
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guixuser6392 wrote on 29 Nov 2020 19:55
(name . bug-guix@gnu.org)(address . bug-guix@gnu.org)
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A regression introduced in the Linux kernel v5.9.11 and v5.4.80 prevents the Shepherd from properly unmounting the efivars file system and shutting down the operating system on UEFI-capable hardware.
This bug has already been reported on the kernel's bug tracker:https://bugzilla.kernel.org/show_bug.cgi?id=210367
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guixuser6392 wrote on 30 Nov 2020 15:09
(name . 44956@debbugs.gnu.org)(address . 44956@debbugs.gnu.org)
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Further investigation shows that this regression does not affect either the shutdown process or the reboot one on GNU/Linux distributions that adopted the systemd init system. This may indicate that no attempt to automatically unmount the efivars file system is ever made on those, which raises the question: why do we explicitly unmount this file system in the first place?
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guixuser6392 wrote on 3 Dec 2020 13:13
(name . 44956@debbugs.gnu.org)(address . 44956@debbugs.gnu.org)
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I can't reproduce this issue on the Linux kernel v5.9.12 and v5.4.81.
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Ludovic Courtès wrote on 3 Dec 2020 17:49
control message for bug #44956
(address . control@debbugs.gnu.org)
87v9didecc.fsf@gnu.org
severity 44956 importantquit
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Leo Famulari wrote on 3 Dec 2020 19:33
Re: bug#44956: Rebooting or powering down UEFI machine locks it up
(name . guixuser6392)(address . guixuser6392@protonmail.com)(name . 44956@debbugs.gnu.org)(address . 44956-done@debbugs.gnu.org)
X8kvbGps0ecjyoP2@jasmine.lan
On Thu, Dec 03, 2020 at 12:13:57PM +0000, guixuser6392 via Bug reports for GNU Guix wrote:
Toggle quote (2 lines)> I can't reproduce this issue on the Linux kernel v5.9.12 and v5.4.81.
Thanks for the followup! Closing...
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