[lfs-support] systemd configuration and meson
Chapter 6.53 contains the following instruction: LANG=en_US.UTF-8 \ meson --prefix=/usr\ --sysconfdir=/etc\ --localstatedir=/var \ -Dblkid=true \ -Dbuildtype=release \ -Ddefault-dnssec=no \ -Dfirstboot=false\ -Dinstall-tests=false\ -Dkill-path=/bin/kill\ -Dkmod-path=/bin/kmod\ -Dldconfig=false \ -Dmount-path=/bin/mount \ -Drootprefix=\ -Drootlibdir=/lib\ -Dsplit-usr=true \ -Dsulogin-path=/sbin/sulogin \ -Dsysusers=false \ -Dumount-path=/bin/umount\ -Db_lto=false\ .. So, what is comming after the two dots? 2e, what is meson doing there? I get the message "Neither directory contains a build file meson.build." while trying to build systemd. Or is it the case that I need to download a modified systemd tarball again? Regards, Frans. -- 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
[lfs-support] systemd configuration
Chapter 6.53 contains the following instruction: LANG=en_US.UTF-8 \ meson --prefix=/usr\ --sysconfdir=/etc\ --localstatedir=/var \ -Dblkid=true \ -Dbuildtype=release \ -Ddefault-dnssec=no \ -Dfirstboot=false\ -Dinstall-tests=false\ -Dkill-path=/bin/kill\ -Dkmod-path=/bin/kmod\ -Dldconfig=false \ -Dmount-path=/bin/mount \ -Drootprefix=\ -Drootlibdir=/lib\ -Dsplit-usr=true \ -Dsulogin-path=/sbin/sulogin \ -Dsysusers=false \ -Dumount-path=/bin/umount\ -Db_lto=false\ .. So, what is comming after the two dots? Regards, Frans. -- 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
Re: [lfs-support] Full retpoline mitigation on older systems
> If anybody wants to add full retpoline mitigation (against Spectre > v2) to an older system, the following works on x86_64 (I no longer > have i686 systems to test on). Thank you, Ken. I do. I can try it. I'll report back when I have information. I haven't seen any indications yet that the 4.4 & 4.9 kernel patches install PTI on i686 builds. Also, perhaps you can clarify: The latest kernel patches for 4.4 & 4.9 use retpoline. Clearly we *want* both, but I'm confused about whether each offers any mitigation on its own? -- Paul Rogers paulgrog...@fastmail.fm Rogers' Second Law: "Everything you do communicates." (I do not personally endorse any additions after this line. TANSTAAFL :-) -- 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
[lfs-support] Insecure email communication
LS, I just had to downgrade my email security in order to be able to send messages to the list. Just because the email server used for the list does not support TLS. It's 2018, and no TLS support? Hope that linuxfromscratch gets an security upgrade soon. Regards, Frans. -- 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
Re: [lfs-support] Full retpoline mitigation on older systems
On Fri, Feb 02, 2018 at 12:11:18AM +, Ken Moffat wrote: > On Thu, Feb 01, 2018 at 01:52:46PM -0800, Paul Rogers wrote: > > > If anybody wants to add full retpoline mitigation (against Spectre > > > v2) to an older system, the following works on x86_64 (I no longer > > > have i686 systems to test on). > > > > Thank you, Ken. I do. I can try it. I'll report back when I have > > information. I haven't seen any indications yet that the 4.4 & 4.9 kernel > > patches install PTI on i686 builds. > > > > The i686 patches for that are still being developed, hopefully at > some point they might be ready for a 4.15-rc, and after that get I must be living in the past. I meant they might be ready for a 4.16-rc. > backported to 4.14 and perhaps to 4.9, 4.4 (depending on how has > changed). Best to read that as "in early development". > > > Also, perhaps you can clarify: The latest kernel patches for 4.4 & 4.9 use > > retpoline. Clearly we *want* both, but I'm confused about whether each > > offers any mitigation on its own? > > > > PTI offers mitigation against Meltdown, retpoline against Spectre > v2. > > And by the time there are mitigations for Spectre v1 (currently, > considerations seem to be particularly focussed on cloud providers > with heterogenous environments, where a VM can be migrated to a > newer, or older, machine - but I guess the attacks are more likely > against VMs shared hosts). > > So again, don't hold your breathe. > > Looks like this will be a fun year, for some definition of fun. > > ĸen > -- > Truth, in front of her huge walk-in wardrobe, selected black leather > boots with stiletto heels for such a barefaced truth. > - Unseen Academicals > -- > 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 -- Truth, in front of her huge walk-in wardrobe, selected black leather boots with stiletto heels for such a barefaced truth. - Unseen Academicals -- 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
Re: [lfs-support] Full retpoline mitigation on older systems
On Thu, Feb 01, 2018 at 01:52:46PM -0800, Paul Rogers wrote: > > If anybody wants to add full retpoline mitigation (against Spectre > > v2) to an older system, the following works on x86_64 (I no longer > > have i686 systems to test on). > > Thank you, Ken. I do. I can try it. I'll report back when I have > information. I haven't seen any indications yet that the 4.4 & 4.9 kernel > patches install PTI on i686 builds. > The i686 patches for that are still being developed, hopefully at some point they might be ready for a 4.15-rc, and after that get backported to 4.14 and perhaps to 4.9, 4.4 (depending on how has changed). Best to read that as "in early development". > Also, perhaps you can clarify: The latest kernel patches for 4.4 & 4.9 use > retpoline. Clearly we *want* both, but I'm confused about whether each > offers any mitigation on its own? > PTI offers mitigation against Meltdown, retpoline against Spectre v2. And by the time there are mitigations for Spectre v1 (currently, considerations seem to be particularly focussed on cloud providers with heterogenous environments, where a VM can be migrated to a newer, or older, machine - but I guess the attacks are more likely against VMs shared hosts). So again, don't hold your breathe. Looks like this will be a fun year, for some definition of fun. ĸen -- Truth, in front of her huge walk-in wardrobe, selected black leather boots with stiletto heels for such a barefaced truth. - Unseen Academicals -- 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
