linux-kernel - Re: [PATCH] fix maxcpus=1 oops in show

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] [day] [month] [year] [list]

Date:	Fri, 31 Aug 2007 11:37:46 +0400
From:	Alexey Dobriyan <adobriyan@...ru>
To:	Hugh Dickins <hugh@...itas.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Len Brown <lenb@...nel.org>,
	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andi Kleen <ak@...e.de>, Jan Beulich <jbeulich@...ell.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] fix maxcpus=1 oops in show_stat()

On Fri, Aug 31, 2007 at 04:26:50AM +0100, Hugh Dickins wrote:
> --- 2.6.23-rc4/init/main.c
> +++ linux/init/main.c
> @@ -397,10 +397,6 @@ static void __init smp_init(void)
>  {
>  	unsigned int cpu;
>  
> -#ifndef CONFIG_HOTPLUG_CPU
> -	cpu_possible_map = cpu_present_map;
> -#endif
> -
>  	/* FIXME: This should be done in userspace --RR */
>  	for_each_present_cpu(cpu) {
>  		if (num_online_cpus() >= max_cpus)
> @@ -545,10 +541,6 @@ asmlinkage void __init start_kernel(void
>  	setup_arch(&command_line);
>  	setup_command_line(command_line);
>  	unwind_setup();
> -#ifndef CONFIG_HOTPLUG_CPU
> -	if (max_cpus < 2)
> -		cpu_possible_map = cpu_online_map;
> -#endif
>  	setup_per_cpu_areas();
>  	smp_prepare_boot_cpu();	/* arch-specific boot-cpu hooks */
>  

Works here, I'll try on another box soon.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/