[systemd-devel] possible kernel crash on bootctl install, can anyone confirm?

[Michał Zegan]

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May be, I asked systemd folks to confirm because this may or may not
be specific to something systemd does internally when modifying them.
I didn't get anything on efibootmgr, and I also didn't try again to
use bootctl install, I just created entries with efibootmgr.

W dniu 2015-08-14 o 19:45, Mantas Mikulėnas pisze:
> On Fri, Aug 14, 2015 at 8:42 PM, Michał Zegan 
> <webczat_200 at poczta.onet.pl <mailto:webczat_200 at poczta.onet.pl>>
> wrote:
> 
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> 
> Hello.
> 
> I was trying to install archlinux with linux 4.1, systemd-224 on
> the uefi machine. At the end of system installation, I issued
> bootctl install command from within chroot, but the command has
> failed because I did not have access to efi variables. After that,
> I have done: mount -t efivarfs efivarfs
> /mnt/sys/firmware/efi/efivars (the mountpoint path may be wrong but
> you get the idea) And, after the next bootctl install, the system
> froze. I am blind and didn't ask anyone what happened, but I
> believe that the kernel panicked. Is this related to mounting
> efivarfs two times and modifying variables, or what? I do not have
> any vm to test it on, well. Can anyone confirm that something like
> that happens either normally or when mounting efivarfs twice?
> 
> 
> This might be a bug in 4.1's EFI variables handling... A few people
> in #archlinux, including myself, have noticed crashes if the
> efivars are accessed after hibernate & resume (on first try,
> efibootmgr segfaults; on second try, the kernel panics). I haven't
> gotten around to reporting it yet.
> 
> -- Mantas Mikulėnas <grawity at gmail.com <mailto:grawity at gmail.com>>
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