Re: kernel aslr: someone interested?

2017-03-24 Thread Joerg Sonnenberger
On Thu, Mar 23, 2017 at 06:30:31PM +0100, Maxime Villard wrote: > I have some plans to implement kernel aslr on amd64. For what purpose? It has been shown over and over again that ASLR simply doesn't work in a lot of situations in userland. The situation for kernel ASLR is significantly worse.

Re: assertion "bp->b_bcount <= todo" failed

2017-03-24 Thread Manuel Bouyer
On Fri, Mar 24, 2017 at 08:39:51PM +, Michael van Elst wrote: > bou...@antioche.eu.org (Manuel Bouyer) writes: > > >Hello, > >on a netbsd-6 host, I got this: > >panic: kernel diagnostic assertion "bp->b_bcount <= todo" failed: file > >"/home/bouyer/src-6/src/sys/kern/kern_physio.c", line 176

Re: assertion "bp->b_bcount <= todo" failed

2017-03-24 Thread Michael van Elst
bou...@antioche.eu.org (Manuel Bouyer) writes: >Hello, >on a netbsd-6 host, I got this: >panic: kernel diagnostic assertion "bp->b_bcount <= todo" failed: file >"/home/bouyer/src-6/src/sys/kern/kern_physio.c", line 176 Does the disklabel show the correct block size for the filesystem? -- --

Re: PAX mprotect and JIT

2017-03-24 Thread Martin Husemann
On Sun, Feb 26, 2017 at 10:34:12PM +0100, Martin Husemann wrote: > On Sun, Feb 26, 2017 at 02:09:08PM +0100, Joerg Sonnenberger wrote: > > The mremap() dance is only desirable for multi-threaded JIT. If you > > compile a module at a time before making it visible, just a plain > > mprotect is