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Groups > linux.kernel > #1720933
| From | Linus Torvalds <torvalds@linux-foundation.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit |
| Date | 2017-08-27 23:50 +0200 |
| Message-ID | <ujdBn-504-9@gated-at.bofh.it> (permalink) |
| References | (5 earlier) <uivTH-1R9-1@gated-at.bofh.it> <uixiO-2At-11@gated-at.bofh.it> <uizuh-3Wv-1@gated-at.bofh.it> <uiNQB-4z5-1@gated-at.bofh.it> <ujdBn-504-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Sun, Aug 27, 2017 at 2:40 PM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> End result: page is unlocked, CPU3 is waiting, nothing will wake CPU3 up.
Not CPU3. CPU3 was the waker. It's thread 2 that is waiting and never
got woken up, of course.
Other than that, the scenario still looks real to me.
Ideas?
Linus
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[PATCH 1/2 v2] sched/wait: Break up long wake list walk Tim Chen <tim.c.chen@linux.intel.com> - 2017-08-25 18:40 +0200
[PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Tim Chen <tim.c.chen@linux.intel.com> - 2017-08-25 18:40 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-25 22:00 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Tim Chen <tim.c.chen@linux.intel.com> - 2017-08-26 00:20 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-26 01:10 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-26 02:40 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-26 05:00 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-26 20:20 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-27 23:50 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-27 23:50 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-28 01:20 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Nicholas Piggin <npiggin@gmail.com> - 2017-08-28 03:20 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Nicholas Piggin <npiggin@gmail.com> - 2017-08-28 03:40 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-28 07:20 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Nicholas Piggin <npiggin@gmail.com> - 2017-08-28 09:20 +0200
RE: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit "Liang, Kan" <kan.liang@intel.com> - 2017-08-28 17:00 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-28 18:50 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Tim Chen <tim.c.chen@linux.intel.com> - 2017-08-28 22:10 +0200
RE: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit "Liang, Kan" <kan.liang@intel.com> - 2017-08-29 15:00 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-29 18:10 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Tim Chen <tim.c.chen@linux.intel.com> - 2017-08-29 18:20 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-29 18:30 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Tim Chen <tim.c.chen@linux.intel.com> - 2017-08-29 19:00 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Tim Chen <tim.c.chen@linux.intel.com> - 2017-08-29 18:20 +0200
Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page_bit Linus Torvalds <torvalds@linux-foundation.org> - 2017-08-29 18:30 +0200
Re: [PATCH 1/2 v2] sched/wait: Break up long wake list walk Christopher Lameter <cl@linux.com> - 2017-08-25 19:50 +0200
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