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:   Mon, 15 Apr 2019 10:30:43 +0100
From:   Huw Davies <>
To:     Thomas Gleixner <>
Cc:     linux kernel <>,
        Andy Lutomirski <>,
        Vincenzo Frascino <>
Subject: Re: [PATCH 2/3] x86/vdso: Allow clock specific mult and shift values

On Sun, Apr 14, 2019 at 12:53:32PM +0200, Thomas Gleixner wrote:
> So it stays in the same cache line, but as we move the VDSO to generic
> code, the mask field needs to stay and this will make basetime[CLOCK_MONOTONIC] 
> overlap into the next cache line.

Thanks for the great review; this is a good point.

> See
> for an alternate solution to this problem, which avoids this and just gives
> CLOCK_MONOTONIC_RAW a separate storage space alltogether.

I can certainly do this for the x86 vdso.  Would that be useful or
should I wait for Vincenzo's work on the generic vdso first?

Many thanks,

Powered by blists - more mailing lists