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From: Sergey Shatunov <me@prok.pw>
To: Ard Biesheuvel <ardb@kernel.org>, Arvind Sankar <nivedita@alum.mit.edu>
Cc: bp@alien8.de, hpa@zytor.com,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	mingo@redhat.com, Thomas Gleixner <tglx@linutronix.de>,
	x86@kernel.org, linux-efi <linux-efi@vger.kernel.org>
Subject: Re: [PATCH 1/2] x86/boot/compressed/64: Remove .bss/.pgtable from bzImage
Date: Mon, 06 Apr 2020 19:36:57 +0700	[thread overview]
Message-ID: <a406bd0ab573e17c1004d3d91948938c209cf94d.camel@prok.pw> (raw)
In-Reply-To: <CAMj1kXHWhPmnaCS74n=1MYLfnsKqf+UAfmaLGQYx9jH3YsXvfg@mail.gmail.com>

On Mon, 2020-04-06 at 10:44 +0200, Ard Biesheuvel wrote:
> On Mon, 6 Apr 2020 at 01:18, Arvind Sankar <nivedita@alum.mit.edu>
> wrote:
> > On Sun, Apr 05, 2020 at 10:42:46PM +0700, Sergey Shatunov wrote:
> > > This patch causes some strange things happens with my laptop.
> > > 
> > > Cold boot crashed in some early initilization logic with message
> > > 'Failed to execute /esp/.../linux.efi: Buffer Too Small'.
> > > After couple reboots into firmware setup (bios) or hot reboot
> > > from other working kernel (without that commit) helps it to boot.
> > > During bisecting couple times I saw different message:
> > > 'exit_efi() failed; efi_main() failed', but above tricks helps it
> > > too.
> 
> Could you please try adding 'efi=no_disable_early_pci_dma' to the
> kernel command line? The lack of BSS zeroization may result in that
> option to get inadvertently enabled, and it is known to break
> exit_boot() on some systems.

With 'efi=no_disable_early_pci_dma' it works again.


  reply	other threads:[~2020-04-06 13:14 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200109150218.16544-1-nivedita@alum.mit.edu>
     [not found] ` <20200405154245.11972-1-me@prok.pw>
2020-04-05 23:18   ` [PATCH 1/2] x86/boot/compressed/64: Remove .bss/.pgtable from bzImage Arvind Sankar
2020-04-06  0:00     ` Sergey Shatunov
2020-04-06  3:51       ` Arvind Sankar
2020-04-06  7:32         ` Ard Biesheuvel
2020-04-06  8:47           ` Borislav Petkov
2020-04-06  9:11             ` Ard Biesheuvel
2020-04-06 11:20               ` Borislav Petkov
2020-04-06 13:22                 ` Arvind Sankar
2020-04-06 13:29                   ` Ard Biesheuvel
2020-04-06 16:01                     ` Arvind Sankar
2020-04-06 16:22                       ` Ard Biesheuvel
2020-04-06 16:52                         ` Arvind Sankar
2020-04-06 16:59                           ` Ard Biesheuvel
2020-04-06 18:06                             ` [PATCH 1/2] efi/x86: Move efi stub globals from .bss to .data Arvind Sankar
2020-04-06 18:06                               ` [PATCH 2/2] efi/x86: Always relocate the kernel for EFI handover entry Arvind Sankar
2020-04-06 18:29                               ` [PATCH 1/2] efi/x86: Move efi stub globals from .bss to .data Ard Biesheuvel
2020-04-08  7:43                               ` Dave Young
2020-04-08  7:49                                 ` Ard Biesheuvel
2020-04-09 14:39                                   ` Arvind Sankar
2020-04-09 14:47                                     ` Ard Biesheuvel
2020-04-09 16:35                                       ` Arvind Sankar
2020-04-10 14:47                                         ` Arvind Sankar
2020-04-10 15:26                                           ` Ard Biesheuvel
2020-04-14 14:57                                             ` Daniel Kiper
2020-04-10 11:26                               ` Thomas Meyer
2020-04-10 14:38                                 ` Arvind Sankar
2020-04-11  8:50                                   ` Thomas Meyer
2020-04-06 17:21                     ` [PATCH 1/2] x86/boot/compressed/64: Remove .bss/.pgtable from bzImage Borislav Petkov
2020-04-06  8:44     ` Ard Biesheuvel
2020-04-06 12:36       ` Sergey Shatunov [this message]
2020-04-06 13:20         ` Ard Biesheuvel

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