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).
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.
We're rolling out FC5 this summer, and have decided to do this rebuild
on all RedHat kernels before we ship them. This isn't a particularly
popular move, but it appears to be the only option available to us.
Simon.
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