On Tue, Jul 25, 2017 at 3:38 AM, Russell King - ARM Linux <[email protected]> wrote: > On Tue, Jul 25, 2017 at 01:28:01PM +0300, Leonard Crestez wrote: >> On Mon, 2017-07-24 at 10:07 -0700, Thomas Garnier wrote: >> > On Wed, Jul 19, 2017 at 10:58 AM, Thomas Garnier <[email protected] >> > > wrote: >> > > >> > > The work pending loop can call set_fs after addr_limit_user_check >> > > removed the _TIF_FSCHECK flag. To prevent the infinite loop, move >> > > the addr_limit_user_check call at the beginning of the loop. >> > > >> > > Fixes: 73ac5d6a2b6a ("arm/syscalls: Check address limit on user- >> > > mode return") >> > > Reported-by: Leonard Crestez <[email protected]> >> > > Signed-off-by: Thomas Garnier <[email protected]> >> >> > Any comments on this patch set? >> >> Tested-by: Leonard Crestez <[email protected]> >> >> This appears to fix the original issue of failing to boot from NFS when >> there are lots of alignment faults. But this is a very basic test >> relative to the reach of this change. >> >> However the original patch has been in linux-next for a while and >> apparently nobody else noticed system calls randomly hanging on arm. >> >> I assume maintainers need to give their opinion. > > I've already stated my opinion, which is different from what Linus has > requested of Thomas. IMHO, the current approach is going to keep on > causing problems along the lines that I've already pointed out.
I understand. Do you think this problem apply to arm64 as well? > > -- > RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ > FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up > according to speedtest.net. -- Thomas
