Am Montag, den 08.01.2018, 16:14 -0800 schrieb Paul Rogers: > I've just patched one of my older Core2 "Conroe", LFS-7.7, up to > 4.4.110. It's an i686 system. With each minor-version patch "make > oldconfig" was run. I saw no kernel config parameter for > PAGE_TABLE_ISOLATION when I rebuilt the patched kernel. I can find > no evidence it has been built into this kernel. I did get some hits > for "kaiser" in the source code, arch/x86/mm/kaiser.c, and the > mm/Makefile looks for CONFIG_PAGE_TABLE_ISOLATION. The make log I > kept does not contain the string "kaiser", nor does /boot/System.map. > > Any ideas? TIA. > You could check dmesg after reboot. If there is a line like
[ 0.000000] Kernel/User page tables isolation: enabled then it should be active. At least on x64_64 such a line comes up (with 4.14.12). Will do a i686 build today... -- Thomas -- http://lists.linuxfromscratch.org/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page Do not top post on this list. A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? http://en.wikipedia.org/wiki/Posting_style
