On Sun, Apr 22, 2018 at 09:06:56PM +0200, Tijl Coosemans wrote: > On Fri, 13 Apr 2018 20:30:49 +0000 (UTC) Konstantin Belousov > <k...@freebsd.org> wrote: > > Author: kib > > Date: Fri Apr 13 20:30:49 2018 > > New Revision: 332489 > > URL: https://svnweb.freebsd.org/changeset/base/332489 > > > > Log: > > i386 4/4G split. > > > > The change makes the user and kernel address spaces on i386 > > independent, giving each almost the full 4G of usable virtual addresses > > except for one PDE at top used for trampoline and per-CPU trampoline > > stacks, and system structures that must be always mapped, namely IDT, > > GDT, common TSS and LDT, and process-private TSS and LDT if allocated. > > Could this have broken the linux futex syscall? I have a linux program > that gets stuck in linux_sys_futex and becomes unkillable. Note that the > routines in sys/i386/linux/linux_support.s try to do atomic operations on > user space addresses.
Yes, it is quite possible. I will try to look next week. _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
