Re: [PATCH v3] add param that allows bootline control of hardened usercopy

On 07/02/2018 04:54 PM, Kees Cook wrote: > On Mon, Jul 2, 2018 at 11:55 AM, Christoph von Recklinghausen > wrote: >> On 07/02/2018 02:43 PM, Kees Cook wrote: >>> On Sat, Jun 30, 2018 at 1:43 PM, Christoph von Recklinghausen >>> wrote: >>>> The last i

Re: [PATCH v3] add param that allows bootline control of hardened usercopy

On 07/02/2018 02:43 PM, Kees Cook wrote: > On Sat, Jun 30, 2018 at 1:43 PM, Christoph von Recklinghausen > wrote: >> The last issue I'm chasing is build failures on ARCH=m68k. The error is >> atomic_read and friends needed by the jump label code not being f

Re: [PATCH v3] add param that allows bootline control of hardened usercopy

On 06/30/2018 04:11 PM, Kees Cook wrote: > On Wed, Jun 27, 2018 at 5:07 AM, Chris von Recklinghausen > wrote: >> Enabling HARDENED_USER_COPY causes measurable regressions in > nit: HARDENED_USERCOPY > >> networking performance, up to 8% under UDP flood. >> >> I'm running an a small packet UDP flo

Re: [v2 PATCH] add param that allows bootline control of hardened usercopy

On 06/26/2018 08:50 AM, Chris von Recklinghausen wrote: > Enabling HARDENED_USER_COPY causes measurable regressions in the > networking performances, up to 8% under UDP flood. > > A generic distro may want to enable HARDENED_USER_COPY in their default > kernel config, but at the same time, such dis

Re: [PATCH] add param that allows bootline control of hardened usercopy

On 06/25/2018 06:35 PM, Kees Cook wrote: > On Mon, Jun 25, 2018 at 3:29 PM, Christoph von Recklinghausen > wrote: >> I have a small set of customers that want CONFIG_HARDENED_USERCOPY >> enabled, and a large number of customers who would be impacted by its >> default be

Re: [PATCH] add param that allows bootline control of hardened usercopy

On 06/25/2018 03:44 PM, Laura Abbott wrote: > On 06/25/2018 08:22 AM, Christoph von Recklinghausen wrote: >> Add correct address for linux-mm >> >> On 06/25/2018 11:08 AM, Chris von Recklinghausen wrote: >>> Enabling HARDENED_USER_COPY causes measurable reg

Re: [PATCH] add param that allows bootline control of hardened usercopy

Add correct address for linux-mm On 06/25/2018 11:08 AM, Chris von Recklinghausen wrote: > Enabling HARDENED_USER_COPY causes measurable regressions in the > networking performances, up to 8% under UDP flood. > > A generic distro may want to enable HARDENED_USER_COPY in their default > kernel conf

Re: [PATCH] Documentation: Better document the hardlockup_panic sysctl

Ack Sent from my iPhone > On Dec 10, 2017, at 2:48 AM, Scott Wood wrote: > > Commit ac1f591249d95372f ("kernel/watchdog.c: add sysctl knob > hardlockup_panic") added the hardlockup_panic sysctl, but did not add it > to Documentation/sysctl/kernel.txt. Add this, and reference it from the > corr