From: Mike Krinkin <krinkin.m.u@gmail.com>
To: mingo@kernel.org, tglx@linutronix.de, hpa@zytor.com,
ricardo.neri-calderon@linux.intel.com, ard.biesheuvel@linaro.org,
matt@codeblueprint.co.uk, pjones@redhat.com,
scott.lawson@intel.com
Cc: linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org
Subject: Cannot load linux after recent efi-related changes
Date: Sat, 17 Sep 2016 19:24:00 +0300 [thread overview]
Message-ID: <20160917162357.GA4122@gmail.com> (raw)
Hello,
after commit 3dad6f7f6975 ("x86/efi: Defer efi_esrt_init until after
memblock_x86_fill") kernel hits BUG_ON __efi_enter_virtual_mode because
efi.systab is NULL. With older kernel versions i face the problem with
efi_mem_reserve described in the commit.
AFAICS, get_systab_virt_addr called from efi_map_regions should set
efi.systab, but i dumped memory desciptors in efi_map_regions and
apparently none of them describes region that contains efi_phys.systab,
so efi.systab remains unset.
next reply other threads:[~2016-09-17 16:24 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-17 16:24 Mike Krinkin [this message]
2016-09-18 1:14 ` Cannot load linux after recent efi-related changes Mike Krinkin
2016-09-19 11:14 ` Matt Fleming
2016-09-19 11:36 ` Mike Krinkin
2016-09-19 11:41 ` Matt Fleming
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