Re: mbuf_jumbo_9k & iSCSI failing

2017-06-26 Thread Edward Napierala
2017-06-25 16:32 GMT+01:00 Ryan Stone : > Having looking at the original email more closely, I see that you showed an > mlxen interface with a 9020 MTU. Seeing allocation failures of 9k mbuf > clusters increase while you are far below the zone's limit means that > you're definitely running into t

Re: mbuf_jumbo_9k & iSCSI failing

2017-06-26 Thread Andrey V. Elsukov
On 25.06.2017 18:32, Ryan Stone wrote: > Having looking at the original email more closely, I see that you showed an > mlxen interface with a 9020 MTU. Seeing allocation failures of 9k mbuf > clusters increase while you are far below the zone's limit means that > you're definitely running into the

Re: mbuf_jumbo_9k & iSCSI failing

2017-06-26 Thread Ben RUBSON
> On 26 Jun 2017, at 15:13, Andrey V. Elsukov wrote: > > I think it is not mlxen specific problem, we have the same symptoms with > ixgbe(4) driver too. To avoid the problem we have patches that are > disable using of 9k mbufs, and instead only use 4k mbufs. Interesting feedback Andrey, thank y

Re: mbuf_jumbo_9k & iSCSI failing

2017-06-26 Thread Andrey V. Elsukov
On 26.06.2017 16:27, Ben RUBSON wrote: > >> On 26 Jun 2017, at 15:13, Andrey V. Elsukov wrote: >> >> I think it is not mlxen specific problem, we have the same symptoms with >> ixgbe(4) driver too. To avoid the problem we have patches that are >> disable using of 9k mbufs, and instead only use 4k

Re: mbuf_jumbo_9k & iSCSI failing

2017-06-26 Thread Ben RUBSON
> On 26 Jun 2017, at 15:25, Andrey V. Elsukov wrote: > > On 26.06.2017 16:27, Ben RUBSON wrote: >> >>> On 26 Jun 2017, at 15:13, Andrey V. Elsukov wrote: >>> >>> I think it is not mlxen specific problem, we have the same symptoms with >>> ixgbe(4) driver too. To avoid the problem we have patc

Re: mbuf_jumbo_9k & iSCSI failing

2017-06-26 Thread Andrey V. Elsukov
On 26.06.2017 16:29, Ben RUBSON wrote: > >> On 26 Jun 2017, at 15:25, Andrey V. Elsukov wrote: >> >> On 26.06.2017 16:27, Ben RUBSON wrote: >>> On 26 Jun 2017, at 15:13, Andrey V. Elsukov wrote: I think it is not mlxen specific problem, we have the same symptoms with ixgbe(4)

Re: mbuf_jumbo_9k & iSCSI failing

2017-06-26 Thread Ben RUBSON
> On 26 Jun 2017, at 15:36, Andrey V. Elsukov wrote: > > On 26.06.2017 16:29, Ben RUBSON wrote: >> >>> On 26 Jun 2017, at 15:25, Andrey V. Elsukov wrote: >>> >>> On 26.06.2017 16:27, Ben RUBSON wrote: > On 26 Jun 2017, at 15:13, Andrey V. Elsukov wrote: > > I think it is no

Re: mbuf_jumbo_9k & iSCSI failing

2017-06-26 Thread Julien Cigar
On Mon, Jun 26, 2017 at 04:13:33PM +0300, Andrey V. Elsukov wrote: > On 25.06.2017 18:32, Ryan Stone wrote: > > Having looking at the original email more closely, I see that you showed an > > mlxen interface with a 9020 MTU. Seeing allocation failures of 9k mbuf > > clusters increase while you are

Re: mbuf_jumbo_9k & iSCSI failing

2017-06-26 Thread Ben RUBSON
> On 26 Jun 2017, at 15:13, Andrey V. Elsukov wrote: > > I think it is not mlxen specific problem, we have the same symptoms with > ixgbe(4) driver too. To avoid the problem we have patches that are > disable using of 9k mbufs, and instead only use 4k mbufs. Another workaround is to decrease th

Re: mbuf_jumbo_9k & iSCSI failing

2017-06-26 Thread YongHyeon PYUN
On Mon, Jun 26, 2017 at 03:44:58PM +0200, Julien Cigar wrote: > On Mon, Jun 26, 2017 at 04:13:33PM +0300, Andrey V. Elsukov wrote: > > On 25.06.2017 18:32, Ryan Stone wrote: > > > Having looking at the original email more closely, I see that you showed > > > an > > > mlxen interface with a 9020 MT

Re: mbuf_jumbo_9k & iSCSI failing

2017-06-26 Thread Matt Joras
On Mon, Jun 26, 2017 at 6:36 AM, Andrey V. Elsukov wrote: > On 26.06.2017 16:29, Ben RUBSON wrote: >> >>> On 26 Jun 2017, at 15:25, Andrey V. Elsukov wrote: >>> >>> On 26.06.2017 16:27, Ben RUBSON wrote: > On 26 Jun 2017, at 15:13, Andrey V. Elsukov wrote: > > I think it is not

Re: mbuf_jumbo_9k & iSCSI failing

2017-06-26 Thread Andrey V. Elsukov
On 26.06.2017 19:26, Matt Joras wrote: > I didn't think that ixgbe(4) still suffered from this problem, and we > use it in the same situations rstone mentioned above. Indeed, ixgbe(4) > doesn't presently suffer from this problem (you can see that in your > patch, as it is only effectively changing

Request for reviewers for vlan(4) locking improvements

2017-06-26 Thread Matt Joras
Hello, I am looking for people to give feedback on a review I've opened to improve the locking in vlan(4). Anyone who's done a fair amount of destroying vlan interfaces on live systems has probably run into panics in if_vlan. This is because there is no real synchronization to prevent a vlan inter

Re: Sporadic TCP/RST sent to client

2017-06-26 Thread Navdeep Parhar
On Thu, Jun 22, 2017 at 3:57 PM, Youssef GHORBAL wrote: > Hello, > > I'm having an issue with a FreeBSD 11 based system, sending > sporadically TCP/RST to clients after initial TCP session correctly initiated. > The sequence goes this way : > > 1 Client -> Server : SYN >

Re: Sporadic TCP/RST sent to client

2017-06-26 Thread Matt Joras
Out of curiosity, what sort of lagg setup are you using that's causing the TCP packets to be split across the two lagg interfaces? Matt On Mon, Jun 26, 2017 at 1:35 PM, Navdeep Parhar wrote: > On Thu, Jun 22, 2017 at 3:57 PM, Youssef GHORBAL > wrote: >> Hello, >> >> I'm having an issue

Re: mbuf_jumbo_9k & iSCSI failing

2017-06-26 Thread Zaphod Beeblebrox
Don't forget that, generally, as I understand it, the network stack suffers from the same problem for 9k buffers. On Sun, Jun 25, 2017 at 12:56 PM, Ben RUBSON wrote: > > On 25 Jun 2017, at 17:32, Ryan Stone wrote: > > > > Having looking at the original email more closely, I see that you showed