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Groups > linux.kernel > #1607263
| From | Peter Zijlstra <peterz@infradead.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RFC][PATCH 0/4] printk: introduce printing kernel thread |
| Date | 2017-03-23 10:00 +0100 |
| Message-ID | <to6L8-8hs-13@gated-at.bofh.it> (permalink) |
| References | <ti0fn-8f0-15@gated-at.bofh.it> <tnTux-6TD-17@gated-at.bofh.it> <to2o9-5jo-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, Mar 23, 2017 at 01:09:58PM +0900, Sergey Senozhatsky wrote: > Hello Peter, > > thanks for taking a look. > > On (03/22/17 18:59), Peter Zijlstra wrote: > > On Mon, Mar 06, 2017 at 09:45:50PM +0900, Sergey Senozhatsky wrote: > > > sysrq is potentially even trickier. can we always wake_up() kernel > > > thread from sysrq? there probably might be cases when we can't rely > > > on the scheduler. > > > > sysrq runs from interrupt context, right? Should be able to do wakeups. > > what I though about was - > what if there are 'misbehaving' higher prio tasks all the time? > the existing sysrq would attempt to do printing from irq context > so it doesn't care about run queues. > > does it make sense to you? Ah, that's what you meant. Yeah, dunno, I'm still unconvinced about the whole printk thread thing. Also those function names are horrifically long.
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Re: [RFC][PATCH 0/4] printk: introduce printing kernel thread Peter Zijlstra <peterz@infradead.org> - 2017-03-22 19:50 +0100
Re: [RFC][PATCH 0/4] printk: introduce printing kernel thread Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2017-03-23 05:20 +0100
Re: [RFC][PATCH 0/4] printk: introduce printing kernel thread Peter Zijlstra <peterz@infradead.org> - 2017-03-23 10:00 +0100
Re: [RFC][PATCH 0/4] printk: introduce printing kernel thread Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2017-03-24 03:00 +0100
Re: [RFC][PATCH 0/4] printk: introduce printing kernel thread Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2017-03-24 05:50 +0100
Re: [RFC][PATCH 0/4] printk: introduce printing kernel thread Petr Mladek <pmladek@suse.com> - 2017-03-24 15:50 +0100
Re: [RFC][PATCH 0/4] printk: introduce printing kernel thread Sergey Senozhatsky <sergey.senozhatsky@gmail.com> - 2017-03-25 01:30 +0100
Re: [RFC][PATCH 0/4] printk: introduce printing kernel thread Petr Mladek <pmladek@suse.com> - 2017-03-23 13:10 +0100
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