RE: [PATCH 06/18] x86, barrier: stop speculation for failed access_ok

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Linus Torvalds
> Sent: 07 January 2018 19:47
...
> Also, people definitely *are* noticing the performance issues with the
> current set of patches, and they are causing real problems. Go search
> for reports of Amazon AWS slowdowns.

Try over 35% slowdown....
Given that AWS instance runs known code (user and kernel) why do we
need to worry about any of these sideband attacks?

	David





[Index of Archives]     [Linux Kernel]     [Kernel Newbies]     [x86 Platform Driver]     [Netdev]     [Linux Wireless]     [Netfilter]     [Bugtraq]     [Linux Filesystems]     [Yosemite Discussion]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]

  Powered by Linux