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  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:   Thu, 27 Aug 2020 10:31:33 +0800
From:   hejinyang <>
To:     Matthew Wilcox <>
Cc:     Huacai Chen <>,
        Jiaxun Yang <>,
        Andrew Morton <>,,,, Tiezhu Yang <>,
        Xuefeng Li <>
Subject: Re: [PATCH] MIPS: Loongson: Fix complie errors without CONFIG_SMP

On 08/26/2020 09:01 PM, Matthew Wilcox wrote:
> On Wed, Aug 26, 2020 at 08:53:27PM +0800, Jinyang He wrote:
>> +++ b/arch/mips/include/asm/mach-loongson64/topology.h
>> @@ -4,7 +4,11 @@
>>   #ifdef CONFIG_NUMA
>> +#ifdef CONFIG_SMP
>>   #define cpu_to_node(cpu)	(cpu_logical_map(cpu) >> 2)
>> +#else
>> +#define cpu_to_node(cpu)	0
>> +#endif
> Are you saying you've enabled NUMA without enabling SMP?  Does that make
> sense?

NUMA option normally work with more than two nodes, though Loongson64 use it
default after patch 6fbde6b492dfc761ad60a68fb2cb32b1eb05b786. Loongson64(3A)'s
each node consists of 4 cpus while it only has 4 cpus. In other words, it has
only one node while open NUMA. I'm confused it if NUMA deponds on SMP.

I'll try fix it with unabling NUMA and SMP later.


Powered by blists - more mailing lists