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:	Sat, 04 Nov 2006 20:07:22 +0100
From:	Eric Dumazet <>
To:	Mikulas Patocka <>
Subject: Re: New filesystem for Linux

Mikulas Patocka a écrit :
>> The problem with a per_cpu biglock is that you may consume a lot of 
>> RAM for big NR_CPUS. Count 32 KB per 'biglock' if NR_CPUS=1024
> Does one Linux kernel run on system with 1024 cpus? I guess it must fry 
> spinlocks... (or even lockup due to spinlock livelocks)

Not here in my house, but I was told such beasts exist somewhere on this planet :)

You can have a kernel compiled with NR_CPUS=1024, but still run it on your 
laptop, with a single CPU available...

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists