On Thursday, July 20, 2006 08:42:24 AM +0100 Simon Wilkinson
<[EMAIL PROTECTED]> wrote:
On 20 Jul 2006, at 04:39, Ken Hornstein wrote:
If we do nothing, there will be no pags in the linux client.
People have been saying that for years; it hasn't happened yet.
How about less alarmism and more good engineering practice?
Actually, you're wrong there. I believe it's Linux amd64 systems that
make the system call table readonly. Those systems don't have pags
(maybe it's not amd64, but whatever it is, we have one of them).
I'm not wrong; recent versions of Linux have the option of making certain
things read-only, but do not have that feature enabled by default. Even on
systems where CONFIG_DEBUG_RODATA is disabled, you get PAG's; they just
don't survive setgroups. We could work around this; we've simply chosen
not to, for now.
With RedHat, this is true for all kernels that ship with FC5 (and
perhaps FC4, I haven't checked). There is a workaround, for i386 at
least, of rebuilding the kernel with CONFIG_DEBUG_RODATA disabled.
Or not using RedHat's kernels at all, which is what we've done ~forever.
_______________________________________________
OpenAFS-devel mailing list
[email protected]
https://lists.openafs.org/mailman/listinfo/openafs-devel
