Re: [PATCH 09/11] x86/pti: enable global pages for shared areas
Linus Torvalds writes: On Mon, Apr 2, 2018 at 10:27 AM, Dave Hansen<dave.hansen@linux.intel.com> wrote:[...] + pte = pte_set_flags(pte, _PAGE_GLOBAL); So this is where the quesion of "why is this...
View ArticleRe: [GIT PULL] arch: remove obsolete architecture ports
Linus Torvalds writes: (Summary) wrote: [...] (dirstat only for brevity) Shortlog? Shortlog? I'd like to see that each architecture removal is independent of the others, so that if somebody wants to...
View ArticleRe: [GIT PULL] x86/build changes for v4.17
Linus Torvalds writes: (Summary) So my biggest worry isn't gcc-4.5 (anybody who hasn't updated deserves to be forced, or can stay with old kernels). to be forced, or can stay with old kernels). No, my...
View ArticleRe: [PATCH] bitmap: fix memset optimization on big-endian systems
Linus Torvalds writes: (Summary) This is wrong on big-endian systems; Ugh, yes. Ugh, yes. In retrospect, I do wish I had just made the bitmap types be byte-based, but we had strong reasons for those...
View ArticleRe: [PATCH] bitmap: fix memset optimization on big-endian systems
Linus Torvalds writes: (Summary) Part of it is due to another historical accident: the alpha port was one of the early ports, and it didn't do atomic byte accesses at all. atomic byte accesses at all....
View ArticleRe: [GIT PULL] EFI updates for v4.17
Linus Torvalds writes: (Summary) I'm surprised you don't see them. I'm surprised you don't see them. Looks like this: Looks like this: WARNING: CPU: 0 PID: 0 at arch/x86/include/asm/tlbflush.h:134...
View ArticleRe: [GIT PULL] arch: remove obsolete architecture ports
Linus Torvalds writes: (Summary) On Mon, Apr 2, 2018 at 12:17 AM, Arnd Bergmann <arnd@arndb.de> wrote: [...] early in the merge window or really late. Ok, I've been pulling arch updates, so it...
View ArticleRe: [GIT PULL] remove in-kernel calls to syscalls
Linus Torvalds writes: (Summary) On Mon, Apr 2, 2018 at 12:04 PM, Dominik Brodowski<linux@dominikbrodowski.net> wrote:[...] kernel with the exception of arch/. Ok, this finished off my arch...
View ArticleRe: [GIT PULL] Kernel lockdown for secure boot
Linus Torvalds writes: (Summary) No way will any sane distribution take it, potentially breaking a lot of machines, and have no way to unbreak them except for "oh, btw, you have to disable secure boot...
View ArticleRe: [GIT pull] irq updates for 4.17
Linus Torvalds writes: On Tue, Apr 3, 2018 at 3:39 PM, Palmer Dabbelt <palmer@sifive.com> wrote: [...] Sorry for breaking things! Thomas, I'll delay pulling your trees until tomorrow in case you...
View ArticleRe: [GIT PULL] Kernel lockdown for secure boot
Linus Torvalds writes: (Summary) or rather, it's probably viable only for distributions that already have reasons to only care about controlled hardware environments, ie Chromebooks etc. Chromebooks...
View ArticleRe: [GIT PULL] Kernel lockdown for secure boot
Linus Torvalds writes: (Summary) Why not enable it by default then? by default then? And if "turn off secure boot" really is the accepted - and actuially used - workaround for the breakage, then used -...
View ArticleRe: [GIT PULL] libata changes for v4.17-rc1
Linus Torvalds writes: (Summary) wrote: [...] hotplug, so very few are hitting it. People hotplug ATA _controllers_? :-O People hotplug ATA _controllers_? :-O As opposed to just the disks a'la eSATA?...
View ArticleRe: [GIT PULL] Kernel lockdown for secure boot
Linus Torvalds writes: (Summary) Things like disk encryption (common for a lot of people) for example means that you simply won't be booting that machine without the user noticing. be booting that...
View ArticleRe: [GIT PULL] Kernel lockdown for secure boot
Linus Torvalds writes: (Summary) It took closer to a hundred emails (ok, so I'm exaggerating, but not _that_ much) until the *real* reason for the tie-in was actually exposed. tie-in was actually...
View ArticleRe: [GIT pull] irq updates for 4.17
Linus Torvalds writes: (Summary) wrote: [...] will fail on some ARM randconfigs. If it's only some (not very realistic) randconfigs, I suspect an incremental fix is probably the easier solution, rather...
View ArticleRe: [PATCH 00/11] [v4] Use global pages with PTI
Linus Torvalds writes: (Summary) wrote: [...] filtering when CR4.PGE=0 or PGE is unsupported. I couldn't see anything odd in this, but I only read the explanations and the patches, and the devil is in...
View ArticleRe: [GIT PULL] Kernel lockdown for secure boot
Linus Torvalds writes: (Summary) They are horrible for a very simple reason: kernel behavior changes that depend on some subtle boot difference are truly nasty to debug, and nasty to get coverage for....
View ArticleRe: [GIT PULL] x86/build changes for v4.17
Linus Torvalds writes: (Summary) On Wed, Apr 4, 2018 at 2:46 PM, Matthias Kaehlcke <mka@chromium.org> wrote: [...] I understand this is annoying, but it seems I'm missing something: I think...
View ArticleRe: [GIT PULL] x86/build changes for v4.17
Linus Torvalds writes: (Summary) wrote: [...] overflow. But that's not what the code does. But that's not what the code does. It never _accessed_ the field. An access would in fact have been a bug (and...
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