Re: Importing the Japanese Shift-JIS encoding to the kernel's locale

2021-04-23 Thread HerbalNekoTea
Is there anyway to have something easily done about it upstream ? Would the license be an issue if there's any about it ? Where should i contact to try to see if they can include it upstream ? Thank you. Regards -HerbalNekoTea On Sat, Apr 24, 2021 at 1:51 AM Valdis Klētnieks wrote: > On Sat, 24

Re: preemptible spinlock?

2021-04-23 Thread Hyeonggon Yoo
Thank you so much for kindly explaining the problem! as Wonhyuk Yang and Max Filippov said, I didn't consider the case that interrupt handler holds same lock. there can be deadlock as you said. 2021년 4월 23일 (금) 오후 3:45, Max Filippov 님이 작성: > > On Thu, Apr 22, 2021 at 11:28 PM Wonhyuk Yang

Re: Importing the Japanese Shift-JIS encoding to the kernel's locale

2021-04-23 Thread Valdis Klētnieks
On Sat, 24 Apr 2021 01:36:13 -0400, HerbalNekoTea said: > Hi, i have kinda found a method a couple years ago to import the Japanese > Shift-JIS encoding from Fedora/CentOS/RHEL/OpenSuse to any other > distribution and i keep forgetting to maintain the sideloading method when > the kernel update

Importing the Japanese Shift-JIS encoding to the kernel's locale

2021-04-23 Thread HerbalNekoTea
Hi, i have kinda found a method a couple years ago to import the Japanese Shift-JIS encoding from Fedora/CentOS/RHEL/OpenSuse to any other distribution and i keep forgetting to maintain the sideloading method when the kernel update broke it. A lot of Japanese content for Windows, who are able to

Re: TCP syn flooding protection

2021-04-23 Thread Valdis Klētnieks
On Fri, 23 Apr 2021 15:45:54 +0900, JeongHwan Kim said: > I'm testing packet flooding test with old kernel version 2.6.30. [/usr/src/linux-next] git show v2.6.30 | grep Date Date: Tue Jun 9 20:05:37 2009 -0700 [/usr/src/linux-next] git diff --shortstat v2.6.30..HEAD 82911 files changed,

TCP syn flooding protection

2021-04-23 Thread JeongHwan Kim
Hi, everyone I'm testing packet flooding test with old kernel version 2.6.30. My board experienced process starvation when injecting ICMP flood with hping3 tool. I modified softirq invocation routine to launch ksoftirqd instead of executing do_softirq and I limitted the speed of ethernet phy

Re: preemptible spinlock?

2021-04-23 Thread Max Filippov
On Thu, Apr 22, 2021 at 11:28 PM Wonhyuk Yang wrote: > > I think the main idea spinlock disables preemption is, > > > the other process that's spinning on the lock can acquire lock. > > > but in some implementations of spinlock, like qspinlock in x86 (or mcs > > lock), > > I think there's no

RE: preemptible spinlock?

2021-04-23 Thread Wonhyuk Yang
Hi, > I think the main idea spinlock disables preemption is, > the other process that's spinning on the lock can acquire lock. > but in some implementations of spinlock, like qspinlock in x86 (or mcs lock), > I think there's no need to disable preemption. because processes > waiting for lock