Re: [PATCH] string: drop __must_check from strscpy() and restore s ...
Linus Torvalds writes: (Summary) It's normally quiet this period, but first I was distracted by some of the Spectre detail discussions, and then we had a few other random odd things come in, so instead...
View ArticleRe: [PATCHv2] mm, page_vma_mapped: Drop faulty pointer arithmetics ...
Linus Torvalds writes: (Summary) The "page_to_pfn()" logic can be pretty expensive (exactly for the sparsemem case, but per-node DISCOTIGMEM has some complexity too. per-node DISCOTIGMEM has some...
View ArticleRe: [kernel-hardening] [PATCH v4 02/10] asm/nospec, array_ptr: san ...
Linus Torvalds writes: (Summary) On Fri, Jan 19, 2018 at 2:20 AM, Jann Horn <jannh@google.com> wrote: [...] add a comment explaining that? I think that's just leftovers from my original...
View ArticleRe: [RFC PATCH 1/4] softirq: Limit vector to a single iteration on ...
Linus Torvalds writes: (Summary) On Fri, Jan 19, 2018 at 8:16 AM, David Miller <davem@davemloft.net> Interesting and a perhaps bit discouraging. Will it always be just a _single_ level of...
View ArticleRe: [mm 4.15-rc8] Random oopses under memory pressure.
Linus Torvalds writes: (Summary) wrote: [...] compliant with the spec. That's an unnecessary technicality. That's an unnecessary technicality. Any compiler that doesn't get pointer inequality testing...
View ArticleRe: [mm 4.15-rc8] Random oopses under memory pressure.
Linus Torvalds writes: (Summary) Maybe some are hidden in macros and removing one removes a lot. and removing one removes a lot. The real problem is that sometimes the subtraction is simply the right...
View ArticleRe: Boot regression with bacf6b499e11 ("x86/mm: Use a struct to re ...
Linus Torvalds writes: (Summary) On Fri, Jan 19, 2018 at 5:23 PM, Laura Abbott <labbott@redhat.com> I've tried to read through that patch three times to find anything it actually changes, and I...
View ArticleRe: [PATCH] x86: Use __nostackprotect for sme_encrypt_kernel
Linus Torvalds writes: On Sat, Jan 20, 2018 at 5:14 PM, Laura Abbott <labbott@redhat.com> wrote: [...] I hadn't seen this picked up yet so sending explicitly Ingo, I just took this directly as a...
View ArticleRe: [PATCH] x86: Use __nostackprotect for sme_encrypt_kernel
Linus Torvalds writes: (Summary) On Sat, Jan 20, 2018 at 5:49 PM, Gabriel C <nix.or.die@gmail.com> wrote: [...] is in stable-queue. Oh, it wasn't clear from the commit message. But I guess the...
View ArticleRe: [RFC 09/10] x86/enter: Create macros to restrict/unrestrict In ...
Linus Torvalds writes: (Summary) Not doing the right thing for meltdown would be completely unacceptable. would be completely unacceptable. So the IBRS garbage implies that Intel is _not_ planning on...
View Article*Not* final 4.15 this weekend
Linus Torvalds writes: (Summary) Tsirkin (1): ptr_ring: document usage around __ptr_ring_peek Michal Suchanek (1): powerpc/pseries: include linux/types.h in asm/hvcall.h Mike Maloney (1): ipv6: fix...
View ArticleRe: [RFC 09/10] x86/enter: Create macros to restrict/unrestrict In ...
Linus Torvalds writes: (Summary) On Sun, Jan 21, 2018 at 2:00 PM, David Woodhouse <dwmw2@infradead.org> Odd intel naming detail. If you look at this series, it very much does that kernel...
View ArticleRe: [PATCHv2] mm, page_vma_mapped: Drop faulty pointer arithmetics ...
Linus Torvalds writes: On Sun, Jan 21, 2018 at 3:49 PM, Tetsuo Handa<penguin-kernel@i-love.sakura.ne.jp> wrote:[...] the object side does not change. Ok, thanks for checking. Ok, thanks for...
View ArticleRe: [RFC PATCH 00/16] PTI support for x86-32
Linus Torvalds writes: (Summary) It might not be entirely reliable for all microarchitectures, though. microarchitectures, though.[...] ation[...] ike[...] protection if needed (and then enable PTI)?...
View ArticleRe: [PATCH] x86/retpoline/entry: Disable the entire SYSCALL64 fast ...
Linus Torvalds writes: (Summary) Compared to all the PTI mess, it's not even noticeable. all the PTI mess, it's not even noticeable. And if we ever get CPU's that have this all fixed, we can re-visit...
View ArticleRe: [mm 4.15-rc8] Random oopses under memory pressure.
Linus Torvalds writes: (Summary) On Mon, Jan 22, 2018 at 5:26 AM, Rasmus Villemoes<rasmus.villemoes@prevas.dk> I have definitely seen gcc generate the difference with a divide. I have definitely...
View ArticleRe: [PATCH] mm, page_vma_mapped: Introduce pfn_in_hpage()
Linus Torvalds writes: On Mon, Jan 22, 2018 at 1:22 AM, Kirill A. Shutemov <kirill.shutemov@linux.intel.com> wrote:[...] better to do this explicitly. Thanks, I applied it directly, since your...
View ArticleRe: [RFC PATCH 00/16] PTI support for x86-32
Linus Torvalds writes: (Summary) the limit check is actually fairly natural to do early rather than late (since it acts on the linear address _before_ base add and TLB lookup). _before_ base add and...
View ArticleRe: [PATCH v6 3/4] vfs: Add timestamp_truncate() api
Linus Torvalds writes: (Summary) wrote: [...] + t.tv_nsec -= t.tv_nsec % gran; This doesn't actuall ywork if tv_nsec is negative. This doesn't actuall ywork if tv_nsec is negative. Which may not be an...
View ArticleRe: [PATCHv6, RESEND 4/4] x86/boot/compressed/64: Handle 5-level p ...
Linus Torvalds writes: On Tue, Jan 23, 2018 at 9:09 AM, Kirill A. Shutemov <kirill.shutemov@linux.intel.com> wrote:[...] code becomes unreachable to the CPU. I do wonder if we need this. Why...
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