linux-kernel - Re: [PATCH v3] x86: UV kdump reboot fix

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 02 Apr 2011 16:47:37 -0400
From:	Valdis.Kletnieks@...edu
To:	Cliff Wickman <cpw@....com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, hpa@...or.com,
	tglx@...utronix.de, rja@....com
Subject: Re: [PATCH v3] x86: UV kdump reboot fix

On Thu, 31 Mar 2011 09:32:02 CDT, Cliff Wickman said:
> From: Cliff Wickman <cpw@....com>
> 
> After a crash dump on an SGI Altix UV system the crash kernel fails to
> cause a reboot.  EFI mode is disabled in the kdump kernel, so only the
> reboot_type of BOOT_ACPI works.

> +	/*
> +	 * for a kdump kernel the reset must be BOOT_ACPI, not BOOT_EFI, as
> +	 * EFI is not enabled in the kdump kernel.
> +	 */
> +	if (is_kdump_kernel())
> +		reboot_type = BOOT_ACPI;
>  }

What happens if some bozo builds their own kdump kernel that has EFI enabled?

Content of type "application/pgp-signature" skipped