Re: [PATCH 00/35 v5] PTI support for x32
Linus Torvalds writes: (Summary) wrote: [...] check what that is. All the kernel entry code that is both in the user mapping and the kernel mapping should be marked G. kernel mapping should be marked...
View ArticleRe: Linux 4.17-rc1 - kernel paging errors running x86 selftests
Linus Torvalds writes: (Summary) wrote: [...] [ 884.496588] BUG: unable to handle kernel paging request at fffffe8000010030 This is the LDT remap area. This is the LDT remap area.[...] [ 884.496614]...
View ArticleRe: Linux 4.17-rc1 - kernel paging errors running x86 selftests
Linus Torvalds writes: (Summary) On Mon, Apr 16, 2018 at 10:43 AM, Linus Torvalds<torvalds@linux-foundation.org> My desktop was running 18b7fd1c93e5 (my kernel from Saturday, I hadn't rebooted it...
View ArticleRe: Linux 4.17-rc1 - kernel paging errors running x86 selftests
Linus Torvalds writes: (Summary) On Mon, Apr 16, 2018 at 10:58 AM, Dave Hansen<dave.hansen@linux.intel.com> wrote:[...]https://lkml.org/lkml/2018/4/16/230 Yup. Yup. And that silly bug explains...
View ArticleRe: Linux 4.17-rc1 - kernel paging errors running x86 selftests
Linus Torvalds writes: (Summary) On Mon, Apr 16, 2018 at 11:15 AM, Linus Torvalds<torvalds@linux-foundation.org> wrote:[...] trivial and obvious and I got cc'd on the discussion. and I also...
View ArticleRe: [RFC PATCH for 4.18 12/23] cpu_opv: Provide cpu_opv system cal ...
Linus Torvalds writes: (Summary) So you are literally debugging something else than the real code. debugging something else than the real code. At that point, you don't need "cpu_opv()", you need to...
View ArticleRe: [PATCH AUTOSEL for 4.14 015/161] printk: Add console owner and ...
Linus Torvalds writes: (Summary) wrote: [...] "didn't go far enough". You're still not getting it. You're still not getting it. The "didn't go far enough" means that the bug fix is *BUGGY*. There is no...
View ArticleRe: [PATCH AUTOSEL for 4.14 015/161] printk: Add console owner and ...
Linus Torvalds writes: (Summary) So if you write a test-case that tests that "system call number 345 returns -ENOSYS", and we add a new system call, and you say "hey, you regressed my system call...
View ArticleRe: [PATCH AUTOSEL for 4.14 015/161] printk: Add console owner and ...
Linus Torvalds writes: (Summary) It's literally just a "this allows us to be ABI compatible with two different users that were confused about the compatibility issue we had due to a broken binary...
View ArticleRe: [RFC PATCH for 4.18 12/23] cpu_opv: Provide cpu_opv system cal ...
Linus Torvalds writes: (Summary) And if somebody does a ldload of a malloc library, and then wants to analyze the behavior of a program, maybe they should ldload their own malloc routines first? That's...
View ArticleRe: [PATCH AUTOSEL for 4.14 015/161] printk: Add console owner and ...
Linus Torvalds writes: (Summary) On Mon, Apr 16, 2018 at 12:24 PM, Steven Rostedt <rostedt@goodmis.org> wrote: [...] another fix that needed to be backported. Fair enough. Because *my* argument...
View ArticleRe: [PATCH AUTOSEL for 4.14 015/161] printk: Add console owner and ...
Linus Torvalds writes: (Summary) If I get a bisected bug report in the last week, I generally revert without much argument, unless the author of the patch has an immediate fix. immediate fix. In...
View ArticleRe: [PATCH AUTOSEL for 4.14 015/161] printk: Add console owner and ...
Linus Torvalds writes: (Summary) wrote: [...] reverted in stable, not mainline. See my other email. See my other email. If your'e stable maintainer, and you get a report of a commit that causes...
View ArticleRe: [PATCH AUTOSEL for 4.14 015/161] printk: Add console owner and ...
Linus Torvalds writes: (Summary) You'd go completely crazy if you didn't automate 99% of all the stable work. if you didn't automate 99% of all the stable work. So can you trust the "Cc: stable" as...
View ArticleRe: [PATCH v3 1/6] ilog2: create truly constant version for sparse
Linus Torvalds writes: (Summary) wrote: [...] __ilog2_32() and __ilog2_64(), If sparse warns about it, then presumably gcc with -Wvla warns about it too? So I suspect that what you'd want is So I...
View ArticleRe: [PATCH v3] module: Fix display of wrong module .text address
Linus Torvalds writes: (Summary) On Wed, Apr 18, 2018 at 6:21 AM, Jessica Yu <jeyu@kernel.org> wrote: [...] Otherwise I can take this up my tree. Take it through your tree. Take it through your...
View ArticleRe: [cfs_trace_lock_tcd] BUG: KASAN: null-ptr-deref in cfs_trace_l ...
Linus Torvalds writes: (Summary) Ugh, that lustre code is disgusting. Ugh, that lustre code is disgusting. I thought we were getting rid of it. I thought we were getting rid of it. Anyway, I started...
View ArticleRe: [PATCH v3 1/6] ilog2: create truly constant version for sparse
Linus Torvalds writes: (Summary) Sometimes __builtin_constant_p() to a ternary operation acts as a constant expression, and sometimes it doesn't. constant expression, and sometimes it doesn't. Oh well....
View ArticleRe: [PATCH 03/35] x86/entry/32: Load task stack from x86_tss.sp1 i ...
Linus Torvalds writes: (Summary) On Wed, Apr 18, 2018 at 4:26 PM, Andi Kleen <ak@linux.intel.com> Why can't that be stored in a per cpu variable? It *is* a percpu variable - the whole x86_tss...
View ArticleRe: [PATCH] vfs: Undo an overly zealous MS_RDONLY -> SB_RDONLY con ...
Linus Torvalds writes: On Fri, Apr 20, 2018 at 5:35 AM, David Howells <dhowells@redhat.com> wrote: [...] MS_RDONLY got accidentally convered to SB_RDONLY. Applied. Applied. I guess they have the...
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