Re: [RFC PATCH 3/3] fs: detect that the i_rwsem has already been t ...
Linus Torvalds writes: (Summary) On Thu, Sep 28, 2017 at 6:53 PM, Mimi Zohar <zohar@linux.vnet.ibm.com> wrote: [...] i_rwsem exclusively before IMA (or EVM) is called. Read my email again. Read...
View ArticleRe: Kernel panic - not syncing: Fatal exception in interrupt (file ...
Linus Torvalds writes: (Summary) Not the clearest picture, and the "Code:" line in particular is missing the interesting part, but at a guess it's taking a fault in put_cred(), which inlines to...
View ArticleRe: [lkp-robot] [blk] 47e0fb461f: BUG:unable_to_handle_kernel
Linus Torvalds writes: (Summary) The code is 1a: 8b 3a mov (%edx),%edi 1c: 8d 8f 40 16 00 00 lea 0x1640(%edi),%ecx 22: 39 ca cmp %ecx,%edx 24: 74 49 je 0x6f 26: b9 01 00 00 00 mov $0x1,%ecx 2b:* 39 97...
View ArticleRe: [RFC PATCH 3/3] fs: detect that the i_rwsem has already been t ...
Linus Torvalds writes: (Summary) You'd have to serialize the actual measurement with the "read generation count", but that should be as simple as just doing a smp_rmb() between the "read generation...
View ArticleRe: [RFC GIT Pull] core watchdog sanitizing
Linus Torvalds writes: (Summary) It makes it harder for the compiler to generate good code (you need to inline it to get the obvious code generation), it makes it harder for checkers to verify things,...
View ArticleRe: [RFC PATCH 3/3] fs: detect that the i_rwsem has already been t ...
Linus Torvalds writes: (Summary) One adds a VFS-layer filesystem method that most filesystems end up not really needing (it's the same as the regular read), and other filesystems end up then having...
View ArticleLinux 4.14-rc3
Linus Torvalds writes: (Summary) Wysocki (1): cpufreq: docs: Drop intel-pstate.txt from index.txt Richard Genoud (1): mtd: nand: atmel: fix buffer overflow in atmel_pmecc_user Rik van Riel (1):...
View ArticleRe: [RFC PATCH 3/3] fs: detect that the i_rwsem has already been t ...
Linus Torvalds writes: (Summary) On Sun, Oct 1, 2017 at 3:34 PM, Dave Chinner <david@fromorbit.com> I actually think i_version has exactly the wrong semantics. I actually think i_version has...
View ArticleRe: [kprobes/x86] a19b2e3d78: WARNING:at_kernel/locking/lockdep.c: ...
Linus Torvalds writes: (Summary) The jprobe thing is really nasty, and despite the thing having been around forever (looking at history, it does back to 2004) there are very few users and they all look...
View ArticleRe: [RFC GIT Pull] core watchdog sanitizing
Linus Torvalds writes: (Summary) Thanks. Side note: would it perhaps make sense to have that cpus_read_lock/unlock() sequence around the whole reconfiguration section? section? Because while looking at...
View ArticleRe: [PATCH RFC] mm: implement write-behind policy for sequential f ...
Linus Torvalds writes: (Summary) This looks lovely to me. This looks lovely to me. I do wonder if you also looked at finishing the background write-behind at close() time, because it strikes me that...
View ArticleRe: 4879b7ae05 ("Merge tag 'dmaengine-4.12-rc1' of .."): WARNING: ...
Linus Torvalds writes: (Summary) And because Josh wasn't implicated in the merge, he didn't get cc'd by the kernel test robot. the kernel test robot. Of course, the stack trace itself seems to be...
View ArticleRe: 4879b7ae05 ("Merge tag 'dmaengine-4.12-rc1' of .."): WARNING: ...
Linus Torvalds writes: (Summary) On Mon, Oct 2, 2017 at 2:26 PM, Josh Poimboeuf <jpoimboe@redhat.com> wrote: [...] enough to realize it's dumping misaligned stack addresses: Ahh, I didn't pick up...
View ArticleRe: [PATCH RFC] mm: implement write-behind policy for sequential f ...
Linus Torvalds writes: (Summary) Konstantin's patch is simple partly because it has only that single-file history to worry about. single-file history to worry about. You could obviously keep that...
View ArticleRe: [RESEND PATCH] prctl: add PR_[GS]ET_PDEATHSIG_PROC
Linus Torvalds writes: (Summary) Yes, the signal is cleared if the e[ug]id/fs[ug]id is changed by exec, but not (for example) if just uid is changed. but not (for example) if just uid is changed. Does...
View ArticleRe: [lockdep] b09be676e0 BUG: unable to handle kernel NULL pointer ...
Linus Torvalds writes: (Summary) The apparent stack corruption really worries me, and what worries me most is that commit wasn't even supposed to change anything as far as I can tell - it only adds...
View ArticleRe: [lockdep] b09be676e0 BUG: unable to handle kernel NULL pointer ...
Linus Torvalds writes: (Summary) wrote:[...] The apparent stack corruption really worries me [...] Side note: I also think the thing is just broken. Side note: I also think the thing is just broken....
View ArticleRe: [RESEND PATCH] prctl: add PR_[GS]ET_PDEATHSIG_PROC
Linus Torvalds writes: (Summary) It's not cleared if we are *releasing* capabilities, which is exactly what might cause a "we can no longer send a signal" what might cause a "we can no longer send a...
View ArticleRe: [GIT PULL] percpu fixes for v4.14-rc3
Linus Torvalds writes: (Summary) It does kind of break the whole point of percpu operations, and I would like to point out that I find things like would like to point out that I find things like static...
View ArticleRe: [RESEND PATCH] prctl: add PR_[GS]ET_PDEATHSIG_PROC
Linus Torvalds writes: (Summary) On Tue, Oct 3, 2017 at 12:30 PM, Eric W. Yeah, I keep making that mistake, because I always confuse this with the exit_signal handling. the exit_signal handling. Just...
View Article