Re: [REGRESSION] Warning in tcp_fastretrans_alert() of net/ipv4/tcp_input.c

2017-09-28 Thread Yuchung Cheng
On Thu, Sep 28, 2017 at 1:14 AM, Oleksandr Natalenko wrote: > Hi. > > Won't tell about panic in tcp_sacktag_walk() since I cannot trigger it > intentionally, but setting net.ipv4.tcp_retrans_collapse to 0 *does not* fix > warning in tcp_fastretrans_alert() for me. Hi Oleksandr: no retrans_collaps

Re: [REGRESSION] Warning in tcp_fastretrans_alert() of net/ipv4/tcp_input.c

2017-09-28 Thread Oleksandr Natalenko
Hi. Won't tell about panic in tcp_sacktag_walk() since I cannot trigger it intentionally, but setting net.ipv4.tcp_retrans_collapse to 0 *does not* fix warning in tcp_fastretrans_alert() for me. On středa 27. září 2017 2:18:32 CEST Yuchung Cheng wrote: > On Tue, Sep 26, 2017 at 5:12 PM, Yuchung

Re: [REGRESSION] Warning in tcp_fastretrans_alert() of net/ipv4/tcp_input.c

2017-09-26 Thread Yuchung Cheng
On Tue, Sep 26, 2017 at 5:12 PM, Yuchung Cheng wrote: > On Tue, Sep 26, 2017 at 6:10 AM, Roman Gushchin wrote: >>> On Wed, Sep 20, 2017 at 6:46 PM, Roman Gushchin wrote: >>> > >>> > > Hello. >>> > > >>> > > Since, IIRC, v4.11, there is some regression in TCP stack resulting in >>> > > the >>> >

Re: [REGRESSION] Warning in tcp_fastretrans_alert() of net/ipv4/tcp_input.c

2017-09-26 Thread Yuchung Cheng
On Tue, Sep 26, 2017 at 6:10 AM, Roman Gushchin wrote: >> On Wed, Sep 20, 2017 at 6:46 PM, Roman Gushchin wrote: >> > >> > > Hello. >> > > >> > > Since, IIRC, v4.11, there is some regression in TCP stack resulting in >> > > the >> > > warning shown below. Most of the time it is harmless, but rar

Re: [REGRESSION] Warning in tcp_fastretrans_alert() of net/ipv4/tcp_input.c

2017-09-26 Thread Roman Gushchin
> On Wed, Sep 20, 2017 at 6:46 PM, Roman Gushchin wrote: > > > > > Hello. > > > > > > Since, IIRC, v4.11, there is some regression in TCP stack resulting in the > > > warning shown below. Most of the time it is harmless, but rarely it just > > > causes either freeze or (I believe, this is related

Re: [REGRESSION] Warning in tcp_fastretrans_alert() of net/ipv4/tcp_input.c

2017-09-21 Thread Yuchung Cheng
On Wed, Sep 20, 2017 at 6:46 PM, Roman Gushchin wrote: > > > Hello. > > > > Since, IIRC, v4.11, there is some regression in TCP stack resulting in the > > warning shown below. Most of the time it is harmless, but rarely it just > > causes either freeze or (I believe, this is related too) panic in

Re: [REGRESSION] Warning in tcp_fastretrans_alert() of net/ipv4/tcp_input.c

2017-09-20 Thread Roman Gushchin
> Hello. > > Since, IIRC, v4.11, there is some regression in TCP stack resulting in the > warning shown below. Most of the time it is harmless, but rarely it just > causes either freeze or (I believe, this is related too) panic in > tcp_sacktag_walk() (because sk_buff passed to this function is