Re: dvb usb issues since kernel 4.9

Hi Linus, Em Tue, 17 Jul 2018 10:09:28 -0700 Linus Torvalds escreveu: > On Tue, Jul 17, 2018 at 4:58 AM Hanna Hawa wrote: > > > > After some debug/bisect/diff, found that patch "softirq: Let ksoftirqd > > do its job" is problematic patch. > > Ok, this thread died down without any

Re: dvb usb issues since kernel 4.9

Hi Linus, Em Tue, 17 Jul 2018 10:09:28 -0700 Linus Torvalds escreveu: > On Tue, Jul 17, 2018 at 4:58 AM Hanna Hawa wrote: > > > > After some debug/bisect/diff, found that patch "softirq: Let ksoftirqd > > do its job" is problematic patch. > > Ok, this thread died down without any

Re: dvb usb issues since kernel 4.9

Em Fri, 26 Jan 2018 17:37:39 -0200 Mauro Carvalho Chehab escreveu: > Em Fri, 26 Jan 2018 12:17:37 -0200 > Mauro Carvalho Chehab escreveu: > > > Hi Alan, > > > > Em Mon, 8 Jan 2018 14:15:35 -0500 (EST) > > Alan Stern

Re: dvb usb issues since kernel 4.9

Em Fri, 26 Jan 2018 17:37:39 -0200 Mauro Carvalho Chehab escreveu: > Em Fri, 26 Jan 2018 12:17:37 -0200 > Mauro Carvalho Chehab escreveu: > > > Hi Alan, > > > > Em Mon, 8 Jan 2018 14:15:35 -0500 (EST) > > Alan Stern escreveu: > > > > > On Mon, 8 Jan 2018, Linus Torvalds wrote: > > >

Re: dvb usb issues since kernel 4.9

Em Fri, 26 Jan 2018 12:17:37 -0200 Mauro Carvalho Chehab escreveu: > Hi Alan, > > Em Mon, 8 Jan 2018 14:15:35 -0500 (EST) > Alan Stern escreveu: > > > On Mon, 8 Jan 2018, Linus Torvalds wrote: > > > > > Can somebody tell which softirq it

Re: dvb usb issues since kernel 4.9

Em Fri, 26 Jan 2018 12:17:37 -0200 Mauro Carvalho Chehab escreveu: > Hi Alan, > > Em Mon, 8 Jan 2018 14:15:35 -0500 (EST) > Alan Stern escreveu: > > > On Mon, 8 Jan 2018, Linus Torvalds wrote: > > > > > Can somebody tell which softirq it is that dvb/usb cares about? > > > > I don't

Re: dvb usb issues since kernel 4.9

Hi Alan, Em Mon, 8 Jan 2018 14:15:35 -0500 (EST) Alan Stern escreveu: > On Mon, 8 Jan 2018, Linus Torvalds wrote: > > > Can somebody tell which softirq it is that dvb/usb cares about? > > I don't know about the DVB part. The USB part is a little difficult to >

Re: dvb usb issues since kernel 4.9

Hi Alan, Em Mon, 8 Jan 2018 14:15:35 -0500 (EST) Alan Stern escreveu: > On Mon, 8 Jan 2018, Linus Torvalds wrote: > > > Can somebody tell which softirq it is that dvb/usb cares about? > > I don't know about the DVB part. The USB part is a little difficult to > analyze, mostly because the

Re: dvb usb issues since kernel 4.9

Em Sat, 13 Jan 2018 07:09:20 -0200 Mauro Carvalho Chehab escreveu: > Em Fri, 12 Jan 2018 13:48:46 -0800 > Eric Dumazet escreveu: > > > On Fri, 2018-01-12 at 19:13 -0200, Mauro Carvalho Chehab wrote: > > > > > > > > > The .config file used to

Re: dvb usb issues since kernel 4.9

Em Sat, 13 Jan 2018 07:09:20 -0200 Mauro Carvalho Chehab escreveu: > Em Fri, 12 Jan 2018 13:48:46 -0800 > Eric Dumazet escreveu: > > > On Fri, 2018-01-12 at 19:13 -0200, Mauro Carvalho Chehab wrote: > > > > > > > > > The .config file used to build the Kernel is at: > > >

Re: dvb usb issues since kernel 4.9

Em Fri, 12 Jan 2018 13:48:46 -0800 Eric Dumazet escreveu: > On Fri, 2018-01-12 at 19:13 -0200, Mauro Carvalho Chehab wrote: > > > > > > The .config file used to build the Kernel is at: > > https://pastebin.com/wpZghann > > > > Hi Mauro > > Any chance you can try

Re: dvb usb issues since kernel 4.9

Em Fri, 12 Jan 2018 13:48:46 -0800 Eric Dumazet escreveu: > On Fri, 2018-01-12 at 19:13 -0200, Mauro Carvalho Chehab wrote: > > > > > > The .config file used to build the Kernel is at: > > https://pastebin.com/wpZghann > > > > Hi Mauro > > Any chance you can try CONFIG_HZ_1000=y,

Re: dvb usb issues since kernel 4.9

On Fri, 2018-01-12 at 19:13 -0200, Mauro Carvalho Chehab wrote: > > > The .config file used to build the Kernel is at: > https://pastebin.com/wpZghann > Hi Mauro Any chance you can try CONFIG_HZ_1000=y, CONFIG_HZ=1000 ? Thanks.

Re: dvb usb issues since kernel 4.9

On Fri, 2018-01-12 at 19:13 -0200, Mauro Carvalho Chehab wrote: > > > The .config file used to build the Kernel is at: > https://pastebin.com/wpZghann > Hi Mauro Any chance you can try CONFIG_HZ_1000=y, CONFIG_HZ=1000 ? Thanks.

Re: dvb usb issues since kernel 4.9

Em Tue, 9 Jan 2018 09:48:47 -0800 Linus Torvalds escreveu: > On Tue, Jan 9, 2018 at 9:27 AM, Eric Dumazet wrote: > > > > So yes, commit 4cd13c21b207 ("softirq: Let ksoftirqd do its job") has > > shown up multiple times in various 'regressions'

Re: dvb usb issues since kernel 4.9

Em Tue, 9 Jan 2018 09:48:47 -0800 Linus Torvalds escreveu: > On Tue, Jan 9, 2018 at 9:27 AM, Eric Dumazet wrote: > > > > So yes, commit 4cd13c21b207 ("softirq: Let ksoftirqd do its job") has > > shown up multiple times in various 'regressions' > > simply because it could surface the problem

Re: dvb usb issues since kernel 4.9

On Tue, 9 Jan 2018 10:58:30 -0800 Linus Torvalds wrote: > So I really think "you can use up 90% of CPU time with a UDP packet > flood from the same network" is very very very different - and > honestly not at all as important - as "you want to be able to use a >

Re: dvb usb issues since kernel 4.9

On Tue, 9 Jan 2018 10:58:30 -0800 Linus Torvalds wrote: > So I really think "you can use up 90% of CPU time with a UDP packet > flood from the same network" is very very very different - and > honestly not at all as important - as "you want to be able to use a > USB DVB receiver and

Re: dvb usb issues since kernel 4.9

On Tue, 2018-01-09 at 22:26 +0100, Jesper Dangaard Brouer wrote: > > I've previously experienced that you can be affected by the scheduler > granularity, which is adjustable (with CONFIG_SCHED_DEBUG=y): > > $ grep -H . /proc/sys/kernel/sched_*_granularity_ns >

Re: dvb usb issues since kernel 4.9

On Tue, 2018-01-09 at 22:26 +0100, Jesper Dangaard Brouer wrote: > > I've previously experienced that you can be affected by the scheduler > granularity, which is adjustable (with CONFIG_SCHED_DEBUG=y): > > $ grep -H . /proc/sys/kernel/sched_*_granularity_ns >

Re: Re: dvb usb issues since kernel 4.9

On Tue, Jan 9, 2018 at 10:58 AM, Linus Torvalds wrote: > On Tue, Jan 9, 2018 at 9:57 AM, Eric Dumazet wrote: >> >> Your patch considers TASKLET_SOFTIRQ being a candidate for 'immediate >> handling', but TCP Small queues heavily use TASKLET, >>

Re: Re: dvb usb issues since kernel 4.9

On Tue, Jan 9, 2018 at 10:58 AM, Linus Torvalds wrote: > On Tue, Jan 9, 2018 at 9:57 AM, Eric Dumazet wrote: >> >> Your patch considers TASKLET_SOFTIRQ being a candidate for 'immediate >> handling', but TCP Small queues heavily use TASKLET, >> so as far as I am concerned a revert would have the

Re: dvb usb issues since kernel 4.9

On Tue, 9 Jan 2018 15:42:35 -0200 Mauro Carvalho Chehab wrote: > Em Mon, 8 Jan 2018 11:51:04 -0800 Linus Torvalds > escreveu: > [...] > Patch makes sense to me, although I was not able to test it myself. The patch also make sense to

Re: dvb usb issues since kernel 4.9

On Tue, 9 Jan 2018 15:42:35 -0200 Mauro Carvalho Chehab wrote: > Em Mon, 8 Jan 2018 11:51:04 -0800 Linus Torvalds > escreveu: > [...] > Patch makes sense to me, although I was not able to test it myself. The patch also make sense to me. I've done some basic testing with it on my high-end

Re: Re: dvb usb issues since kernel 4.9

On Tue, Jan 9, 2018 at 9:57 AM, Eric Dumazet wrote: > > Your patch considers TASKLET_SOFTIRQ being a candidate for 'immediate > handling', but TCP Small queues heavily use TASKLET, > so as far as I am concerned a revert would have the same effect. Does it actually? TCP ends

Re: Re: dvb usb issues since kernel 4.9

On Tue, Jan 9, 2018 at 9:57 AM, Eric Dumazet wrote: > > Your patch considers TASKLET_SOFTIRQ being a candidate for 'immediate > handling', but TCP Small queues heavily use TASKLET, > so as far as I am concerned a revert would have the same effect. Does it actually? TCP ends up dropping packets

Re: Re: dvb usb issues since kernel 4.9

On Tue, Jan 9, 2018 at 9:48 AM, Linus Torvalds wrote: > On Tue, Jan 9, 2018 at 9:27 AM, Eric Dumazet wrote: >> >> So yes, commit 4cd13c21b207 ("softirq: Let ksoftirqd do its job") has >> shown up multiple times in various 'regressions' >>

Re: Re: dvb usb issues since kernel 4.9

On Tue, Jan 9, 2018 at 9:48 AM, Linus Torvalds wrote: > On Tue, Jan 9, 2018 at 9:27 AM, Eric Dumazet wrote: >> >> So yes, commit 4cd13c21b207 ("softirq: Let ksoftirqd do its job") has >> shown up multiple times in various 'regressions' >> simply because it could surface the problem more often.

Re: dvb usb issues since kernel 4.9

On Tue, Jan 9, 2018 at 9:42 AM, Mauro Carvalho Chehab wrote: > > On my preliminar tests, writing to a file on an ext4 partition at a > USB stick loses data up to the point to make it useless (1/4 of the data > is lost!). However, writing to a class 10 microSD card is

Re: dvb usb issues since kernel 4.9

On Tue, Jan 9, 2018 at 9:42 AM, Mauro Carvalho Chehab wrote: > > On my preliminar tests, writing to a file on an ext4 partition at a > USB stick loses data up to the point to make it useless (1/4 of the data > is lost!). However, writing to a class 10 microSD card is doable. Note that most USB

Re: Re: dvb usb issues since kernel 4.9

On Tue, Jan 9, 2018 at 9:27 AM, Eric Dumazet wrote: > > So yes, commit 4cd13c21b207 ("softirq: Let ksoftirqd do its job") has > shown up multiple times in various 'regressions' > simply because it could surface the problem more often. > But even if you revert it, you can

Re: Re: dvb usb issues since kernel 4.9

On Tue, Jan 9, 2018 at 9:27 AM, Eric Dumazet wrote: > > So yes, commit 4cd13c21b207 ("softirq: Let ksoftirqd do its job") has > shown up multiple times in various 'regressions' > simply because it could surface the problem more often. > But even if you revert it, you can still make the faulty >

Re: dvb usb issues since kernel 4.9

Em Mon, 8 Jan 2018 11:51:04 -0800 Linus Torvalds escreveu: > On Mon, Jan 8, 2018 at 11:15 AM, Alan Stern wrote: > > > > Both dwc2_hsotg and ehci-hcd use the tasklets embedded in the > > giveback_urb_bh member of struct usb_hcd. See

Re: dvb usb issues since kernel 4.9

Em Mon, 8 Jan 2018 11:51:04 -0800 Linus Torvalds escreveu: > On Mon, Jan 8, 2018 at 11:15 AM, Alan Stern wrote: > > > > Both dwc2_hsotg and ehci-hcd use the tasklets embedded in the > > giveback_urb_bh member of struct usb_hcd. See usb_hcd_giveback_urb() > > in drivers/usb/core/hcd.c; the

Re: Re: dvb usb issues since kernel 4.9

On Tue, Jan 9, 2018 at 8:51 AM, Josef Griebichler wrote: > Hi Linus, > > your patch works very good for me and others (please see > https://forum.libreelec.tv/thread/4235-dvb-issue-since-le-switched-to-kernel-4-9-x/?postID=77006#post77006). > No errors in recordings

Re: Re: dvb usb issues since kernel 4.9

On Tue, Jan 9, 2018 at 8:51 AM, Josef Griebichler wrote: > Hi Linus, > > your patch works very good for me and others (please see > https://forum.libreelec.tv/thread/4235-dvb-issue-since-le-switched-to-kernel-4-9-x/?postID=77006#post77006). > No errors in recordings any more. > The patch was

Aw: Re: dvb usb issues since kernel 4.9

.@vger.kernel.org>, "Jonathan Corbet" <cor...@lwn.net>, LMML <linux-me...@vger.kernel.org>, "David Miller" <da...@davemloft.net>, torva...@linux-foundation.org Betreff: Re: dvb usb issues since kernel 4.9 On Mon, 8 Jan 2018 22:44:27 +0100 Peter Zijlstra <

Aw: Re: dvb usb issues since kernel 4.9

quot; , "Mauro Carvalho Chehab" , "Alan Stern" , "Greg Kroah-Hartman" , linux-...@vger.kernel.org, "Eric Dumazet" , "Rik van Riel" , "Paolo Abeni" , "Hannes Frederic Sowa" , linux-kernel , netdev , "Jonathan Corbet" ,

Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018 22:44:27 +0100 Peter Zijlstra wrote: > On Mon, Jan 08, 2018 at 10:31:09PM +0100, Jesper Dangaard Brouer wrote: > > I did expected the issue to get worse, when you load the Pi with > > network traffic, as now the softirq time-budget have to be shared > >

Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018 22:44:27 +0100 Peter Zijlstra wrote: > On Mon, Jan 08, 2018 at 10:31:09PM +0100, Jesper Dangaard Brouer wrote: > > I did expected the issue to get worse, when you load the Pi with > > network traffic, as now the softirq time-budget have to be shared > > between networking and

Re: dvb usb issues since kernel 4.9

On Mon, Jan 08, 2018 at 10:31:09PM +0100, Jesper Dangaard Brouer wrote: > I did expected the issue to get worse, when you load the Pi with > network traffic, as now the softirq time-budget have to be shared > between networking and USB/DVB. Thus, I guess you are running TCP and > USB/mpeg2ts on

Re: dvb usb issues since kernel 4.9

On Mon, Jan 08, 2018 at 10:31:09PM +0100, Jesper Dangaard Brouer wrote: > I did expected the issue to get worse, when you load the Pi with > network traffic, as now the softirq time-budget have to be shared > between networking and USB/DVB. Thus, I guess you are running TCP and > USB/mpeg2ts on

Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018 17:26:10 +0100 "Josef Griebichler" wrote: > I tried your mentioned patch but unfortunately no real improvement for me. > dmesg http://ix.io/DOg > tvheadend service log http://ix.io/DOi > > Errors during recording are still there. Are you _also_

Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018 17:26:10 +0100 "Josef Griebichler" wrote: > I tried your mentioned patch but unfortunately no real improvement for me. > dmesg http://ix.io/DOg > tvheadend service log http://ix.io/DOi > > Errors during recording are still there. Are you _also_ recording the stream on the

Re: Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018 12:35:08 -0500 (EST) Alan Stern wrote: > On Mon, 8 Jan 2018, Josef Griebichler wrote: > > > No I can't sorry. There's no sat connection near to my workstation. > > Can we ask the person who made this post: >

Re: Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018 12:35:08 -0500 (EST) Alan Stern wrote: > On Mon, 8 Jan 2018, Josef Griebichler wrote: > > > No I can't sorry. There's no sat connection near to my workstation. > > Can we ask the person who made this post: >

Re: dvb usb issues since kernel 4.9

On Mon, Jan 8, 2018 at 11:15 AM, Alan Stern wrote: > > Both dwc2_hsotg and ehci-hcd use the tasklets embedded in the > giveback_urb_bh member of struct usb_hcd. See usb_hcd_giveback_urb() > in drivers/usb/core/hcd.c; the calls are > > else if (high_prio_bh) >

Re: dvb usb issues since kernel 4.9

On Mon, Jan 8, 2018 at 11:15 AM, Alan Stern wrote: > > Both dwc2_hsotg and ehci-hcd use the tasklets embedded in the > giveback_urb_bh member of struct usb_hcd. See usb_hcd_giveback_urb() > in drivers/usb/core/hcd.c; the calls are > > else if (high_prio_bh) >

Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018, Linus Torvalds wrote: > Can somebody tell which softirq it is that dvb/usb cares about? I don't know about the DVB part. The USB part is a little difficult to analyze, mostly because the bug reports I've seen are mostly from people running non-vanilla kernels. For example,

Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018, Linus Torvalds wrote: > Can somebody tell which softirq it is that dvb/usb cares about? I don't know about the DVB part. The USB part is a little difficult to analyze, mostly because the bug reports I've seen are mostly from people running non-vanilla kernels. For example,

Re: dvb usb issues since kernel 4.9

On Mon, Jan 8, 2018 at 9:55 AM, Ingo Molnar wrote: > > as I doubt we have enough time to root-case this properly. Well, it's not like this is a new issue, and we don't have to get it fixed for 4.15. It's been around since 4.9, it's not a "have to suddenly fix it this week"

Re: dvb usb issues since kernel 4.9

On Mon, Jan 8, 2018 at 9:55 AM, Ingo Molnar wrote: > > as I doubt we have enough time to root-case this properly. Well, it's not like this is a new issue, and we don't have to get it fixed for 4.15. It's been around since 4.9, it's not a "have to suddenly fix it this week" issue. I just think

Re: dvb usb issues since kernel 4.9

* Linus Torvalds wrote: > On Sat, Jan 6, 2018 at 11:54 AM, Mauro Carvalho Chehab > wrote: > > > > Em Sat, 6 Jan 2018 16:04:16 +0100 > > "Josef Griebichler" escreveu: > >> > >> the causing commit has been

Re: dvb usb issues since kernel 4.9

* Linus Torvalds wrote: > On Sat, Jan 6, 2018 at 11:54 AM, Mauro Carvalho Chehab > wrote: > > > > Em Sat, 6 Jan 2018 16:04:16 +0100 > > "Josef Griebichler" escreveu: > >> > >> the causing commit has been identified. > >> After reverting commit > >>

Re: Aw: Re: Re: dvb usb issues since kernel 4.9

ot;Hannes Frederic Sowa" <han...@redhat.com>, "Jesper > Dangaard Brouer" <jbro...@redhat.com>, linux-kernel > <linux-kernel@vger.kernel.org>, netdev <net...@vger.kernel.org>, "Jonathan > Corbet" <cor...@lwn.net>, LMML <linux-me...@

Re: Aw: Re: Re: dvb usb issues since kernel 4.9

;Eric Dumazet" > , "Rik van Riel" , "Paolo Abeni" > , "Hannes Frederic Sowa" , "Jesper > Dangaard Brouer" , linux-kernel > , netdev , "Jonathan > Corbet" , LMML , "Peter > Zijlstra" , "David Miller" ,

Aw: Re: Re: dvb usb issues since kernel 4.9

owa" <han...@redhat.com>, "Jesper Dangaard Brouer" <jbro...@redhat.com>, linux-kernel <linux-kernel@vger.kernel.org>, netdev <net...@vger.kernel.org>, "Jonathan Corbet" <cor...@lwn.net>, LMML <linux-me...@vger.kernel.org>, "Peter

Aw: Re: Re: dvb usb issues since kernel 4.9

ric Dumazet" , "Rik van Riel" , "Paolo Abeni" , "Hannes Frederic Sowa" , "Jesper Dangaard Brouer" , linux-kernel , netdev , "Jonathan Corbet" , LMML , "Peter Zijlstra" , "David Miller" , torva...@linux-foundation.org Betre

Re: Aw: Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018, Josef Griebichler wrote: > Hi Maro, > > I tried your mentioned patch but unfortunately no real improvement for me. > dmesg http://ix.io/DOg > tvheadend service log http://ix.io/DOi > Errors during recording are still there. > Errors increase if there is additional tcp load on

Re: Aw: Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018, Josef Griebichler wrote: > Hi Maro, > > I tried your mentioned patch but unfortunately no real improvement for me. > dmesg http://ix.io/DOg > tvheadend service log http://ix.io/DOi > Errors during recording are still there. > Errors increase if there is additional tcp load on

Aw: Re: dvb usb issues since kernel 4.9

Hi Maro, I tried your mentioned patch but unfortunately no real improvement for me. dmesg http://ix.io/DOg tvheadend service log http://ix.io/DOi Errors during recording are still there. Errors increase if there is additional tcp load on raspberry. Unfortunately there's no usbmon or tshark on

Aw: Re: dvb usb issues since kernel 4.9

Hi Maro, I tried your mentioned patch but unfortunately no real improvement for me. dmesg http://ix.io/DOg tvheadend service log http://ix.io/DOi Errors during recording are still there. Errors increase if there is additional tcp load on raspberry. Unfortunately there's no usbmon or tshark on

Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018, Mauro Carvalho Chehab wrote: > > Let find the root-cause of this before reverting, as this will hurt the > > networking use-case. > > > > I want to see if the increase buffer will solve the issue (the current > > buffer of 0.63 ms seem too small). > > For TV, high latency

Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018, Mauro Carvalho Chehab wrote: > > Let find the root-cause of this before reverting, as this will hurt the > > networking use-case. > > > > I want to see if the increase buffer will solve the issue (the current > > buffer of 0.63 ms seem too small). > > For TV, high latency

Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018, Mauro Carvalho Chehab wrote: > Em Sun, 7 Jan 2018 10:41:37 -0500 (EST) > Alan Stern escreveu: > > > On Sun, 7 Jan 2018, Mauro Carvalho Chehab wrote: > > > > > > > It seems that the original patch were designed to solve some IRQ > > > > > issues >

Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018, Mauro Carvalho Chehab wrote: > Em Sun, 7 Jan 2018 10:41:37 -0500 (EST) > Alan Stern escreveu: > > > On Sun, 7 Jan 2018, Mauro Carvalho Chehab wrote: > > > > > > > It seems that the original patch were designed to solve some IRQ > > > > > issues > > > > > with network cards

Re: dvb usb issues since kernel 4.9

Em Mon, 8 Jan 2018 12:59:10 +0100 Jesper Dangaard Brouer escreveu: > On Mon, 8 Jan 2018 08:02:00 -0200 > Mauro Carvalho Chehab wrote: > > > Hi Linus, > > > > Em Sun, 7 Jan 2018 13:23:39 -0800 > > Linus Torvalds

Re: dvb usb issues since kernel 4.9

Em Mon, 8 Jan 2018 12:59:10 +0100 Jesper Dangaard Brouer escreveu: > On Mon, 8 Jan 2018 08:02:00 -0200 > Mauro Carvalho Chehab wrote: > > > Hi Linus, > > > > Em Sun, 7 Jan 2018 13:23:39 -0800 > > Linus Torvalds escreveu: > > > > > On Sat, Jan 6, 2018 at 11:54 AM, Mauro Carvalho Chehab > >

Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018 08:02:00 -0200 Mauro Carvalho Chehab wrote: > Hi Linus, > > Em Sun, 7 Jan 2018 13:23:39 -0800 > Linus Torvalds escreveu: > > > On Sat, Jan 6, 2018 at 11:54 AM, Mauro Carvalho Chehab > >

Re: dvb usb issues since kernel 4.9

On Mon, 8 Jan 2018 08:02:00 -0200 Mauro Carvalho Chehab wrote: > Hi Linus, > > Em Sun, 7 Jan 2018 13:23:39 -0800 > Linus Torvalds escreveu: > > > On Sat, Jan 6, 2018 at 11:54 AM, Mauro Carvalho Chehab > > wrote: > > > > > > Em Sat, 6 Jan 2018 16:04:16 +0100 > > > "Josef Griebichler"

Re: dvb usb issues since kernel 4.9

Hi Linus, Em Sun, 7 Jan 2018 13:23:39 -0800 Linus Torvalds escreveu: > On Sat, Jan 6, 2018 at 11:54 AM, Mauro Carvalho Chehab > wrote: > > > > Em Sat, 6 Jan 2018 16:04:16 +0100 > > "Josef Griebichler" escreveu:

Re: dvb usb issues since kernel 4.9

Hi Linus, Em Sun, 7 Jan 2018 13:23:39 -0800 Linus Torvalds escreveu: > On Sat, Jan 6, 2018 at 11:54 AM, Mauro Carvalho Chehab > wrote: > > > > Em Sat, 6 Jan 2018 16:04:16 +0100 > > "Josef Griebichler" escreveu: > >> > >> the causing commit has been identified. > >> After reverting commit >

Re: dvb usb issues since kernel 4.9

Em Sun, 7 Jan 2018 10:41:37 -0500 (EST) Alan Stern escreveu: > On Sun, 7 Jan 2018, Mauro Carvalho Chehab wrote: > > > > > It seems that the original patch were designed to solve some IRQ issues > > > > with network cards with causes data losses on high traffic.

Re: dvb usb issues since kernel 4.9

Em Sun, 7 Jan 2018 10:41:37 -0500 (EST) Alan Stern escreveu: > On Sun, 7 Jan 2018, Mauro Carvalho Chehab wrote: > > > > > It seems that the original patch were designed to solve some IRQ issues > > > > with network cards with causes data losses on high traffic. However, > > > > it is also

Re: dvb usb issues since kernel 4.9

On Sat, Jan 6, 2018 at 11:54 AM, Mauro Carvalho Chehab wrote: > > Em Sat, 6 Jan 2018 16:04:16 +0100 > "Josef Griebichler" escreveu: >> >> the causing commit has been identified. >> After reverting commit >>

Re: dvb usb issues since kernel 4.9

On Sat, Jan 6, 2018 at 11:54 AM, Mauro Carvalho Chehab wrote: > > Em Sat, 6 Jan 2018 16:04:16 +0100 > "Josef Griebichler" escreveu: >> >> the causing commit has been identified. >> After reverting commit >>

Aw: Re: dvb usb issues since kernel 4.9

edhat.com>, "Hannes Frederic Sowa" <han...@redhat.com>, "Jesper Dangaard Brouer" <jbro...@redhat.com>, linux-kernel <linux-kernel@vger.kernel.org>, netdev <net...@vger.kernel.org>, "Jonathan Corbet" <cor...@lwn.net>, LMML <linux-me..

Aw: Re: dvb usb issues since kernel 4.9

linux-...@vger.kernel.org, "Eric Dumazet" , "Rik van Riel" , "Paolo Abeni" , "Hannes Frederic Sowa" , "Jesper Dangaard Brouer" , linux-kernel , netdev , "Jonathan Corbet" , LMML , "Peter Zijlstra" , "David Miller"

Re: dvb usb issues since kernel 4.9

On Sun, 7 Jan 2018, Mauro Carvalho Chehab wrote: > > > It seems that the original patch were designed to solve some IRQ issues > > > with network cards with causes data losses on high traffic. However, > > > it is also causing bad effects on sustained high bandwidth demands > > > required by DVB

Re: dvb usb issues since kernel 4.9

On Sun, 7 Jan 2018, Mauro Carvalho Chehab wrote: > > > It seems that the original patch were designed to solve some IRQ issues > > > with network cards with causes data losses on high traffic. However, > > > it is also causing bad effects on sustained high bandwidth demands > > > required by DVB

Re: dvb usb issues since kernel 4.9

Em Sat, 6 Jan 2018 16:44:20 -0500 (EST) Alan Stern escreveu: > On Sat, 6 Jan 2018, Mauro Carvalho Chehab wrote: > > > Hi Josef, > > > > Em Sat, 6 Jan 2018 16:04:16 +0100 > > "Josef Griebichler" escreveu: > > > > > Hi, > > > > > > the

Re: dvb usb issues since kernel 4.9

Em Sat, 6 Jan 2018 16:44:20 -0500 (EST) Alan Stern escreveu: > On Sat, 6 Jan 2018, Mauro Carvalho Chehab wrote: > > > Hi Josef, > > > > Em Sat, 6 Jan 2018 16:04:16 +0100 > > "Josef Griebichler" escreveu: > > > > > Hi, > > > > > > the causing commit has been identified. > > > After

Re: dvb usb issues since kernel 4.9

On Sat, 6 Jan 2018, Mauro Carvalho Chehab wrote: > Hi Josef, > > Em Sat, 6 Jan 2018 16:04:16 +0100 > "Josef Griebichler" escreveu: > > > Hi, > > > > the causing commit has been identified. > > After reverting commit > >

Re: dvb usb issues since kernel 4.9

On Sat, 6 Jan 2018, Mauro Carvalho Chehab wrote: > Hi Josef, > > Em Sat, 6 Jan 2018 16:04:16 +0100 > "Josef Griebichler" escreveu: > > > Hi, > > > > the causing commit has been identified. > > After reverting commit > >

Aw: Re: dvb usb issues since kernel 4.9

opensource.com> > An: "Sean Young" <s...@mess.org> > Cc: "Josef Griebichler" <griebichler.jo...@gmx.at>, lcaumo...@gmail.com, > gre...@linuxfoundation.org, linux-me...@vger.kernel.org, > linux-...@vger.kernel.org > Betreff: Re: dvb usb issues since kern

Aw: Re: dvb usb issues since kernel 4.9

"Josef Griebichler" , lcaumo...@gmail.com, > gre...@linuxfoundation.org, linux-me...@vger.kernel.org, > linux-...@vger.kernel.org > Betreff: Re: dvb usb issues since kernel 4.9 > Em Sun, 17 Dec 2017 12:06:37 + > Sean Young escreveu: > > > Hi Josef, > > Em Sun,

Re: dvb usb issues since kernel 4.9

: "Josef Griebichler" <griebichler.jo...@gmx.at>, lcaumo...@gmail.com, > gre...@linuxfoundation.org, linux-me...@vger.kernel.org, > linux-...@vger.kernel.org > Betreff: Re: dvb usb issues since kernel 4.9 > Em Sun, 17 Dec 2017 12:06:37 + > Sean Young <s...@me

Re: dvb usb issues since kernel 4.9

as about how to fix it without causing regressions to network? Regards, Mauro > Gesendet: Sonntag, 17. Dezember 2017 um 14:27 Uhr > Von: "Mauro Carvalho Chehab" > An: "Sean Young" > Cc: "Josef Griebichler" , lcaumo...@gmail.com, > gre...@linuxfoundati