Re: Panic with demuxed ipv4 multicast udp sockets on 4.0.4

2015-08-12 Thread Eric Dumazet
On Wed, 2015-08-12 at 09:13 -0700, Alex Gartrell wrote: > Hey Gregory, > > On Sun, Aug 2, 2015 at 2:28 PM, Gregory Hoggarth > wrote: > > I will apply the new suggested patch, reverting previous patch, and test > > overnight and update tomorrow. > > Did this solve your problem? If not, would yo

Re: Panic with demuxed ipv4 multicast udp sockets on 4.0.4

2015-08-12 Thread Alex Gartrell
Hey Gregory, On Sun, Aug 2, 2015 at 2:28 PM, Gregory Hoggarth wrote: > I will apply the new suggested patch, reverting previous patch, and test > overnight and update tomorrow. Did this solve your problem? If not, would you mind sharing a repro? -- Alex Gartrell -- To unsubscribe from this

RE: Panic with demuxed ipv4 multicast udp sockets on 4.0.4

2015-08-02 Thread Gregory Hoggarth
11:17 p.m. To: Gregory Hoggarth Cc: Shawn Bohrer; netdev@vger.kernel.org; alexgartr...@gmail.com Subject: Re: Panic with demuxed ipv4 multicast udp sockets on 4.0.4 On Fri, 2015-07-31 at 12:17 +0200, Eric Dumazet wrote: > On Thu, 2015-07-30 at 22:29 +, Gregory Hoggarth wrote: >

Re: Panic with demuxed ipv4 multicast udp sockets on 4.0.4

2015-07-31 Thread Eric Dumazet
On Fri, 2015-07-31 at 12:17 +0200, Eric Dumazet wrote: > On Thu, 2015-07-30 at 22:29 +, Gregory Hoggarth wrote: > > Hi Eric, > > > > Thanks for the patch. I have put this into our code and we'll run our test > > over tonight and the weekend and report back on Monday. > > > > Thanks, > > Oh

Re: Panic with demuxed ipv4 multicast udp sockets on 4.0.4

2015-07-31 Thread Eric Dumazet
On Thu, 2015-07-30 at 22:29 +, Gregory Hoggarth wrote: > Hi Eric, > > Thanks for the patch. I have put this into our code and we'll run our test > over tonight and the weekend and report back on Monday. > > Thanks, Oh well, real fix will be : (Or at least test if DST_NOCACHE is set : those

RE: Panic with demuxed ipv4 multicast udp sockets on 4.0.4

2015-07-30 Thread Gregory Hoggarth
ohrer; netdev@vger.kernel.org; alexgartr...@gmail.com Subject: Re: Panic with demuxed ipv4 multicast udp sockets on 4.0.4 On Thu, 2015-07-30 at 07:42 +0200, Eric Dumazet wrote: > On Thu, 2015-07-30 at 01:41 +, Gregory Hoggarth wrote: > > Hi, > > > > My company has also started

Re: Panic with demuxed ipv4 multicast udp sockets on 4.0.4

2015-07-29 Thread Eric Dumazet
On Thu, 2015-07-30 at 07:42 +0200, Eric Dumazet wrote: > On Thu, 2015-07-30 at 01:41 +, Gregory Hoggarth wrote: > > Hi, > > > > My company has also started having what appears to be the same problem, > > since we upgraded our embedded system to > > linux kernel 3.16. > > > > I tried applyin

Re: Panic with demuxed ipv4 multicast udp sockets on 4.0.4

2015-07-29 Thread Eric Dumazet
On Thu, 2015-07-30 at 01:41 +, Gregory Hoggarth wrote: > Hi, > > My company has also started having what appears to be the same problem, since > we upgraded our embedded system to > linux kernel 3.16. > > I tried applying the suggested fix of READ_ONCE (and also had to add in the > necessa

Re: Panic with demuxed ipv4 multicast udp sockets on 4.0.4

2015-07-29 Thread Gregory Hoggarth
Hi, My company has also started having what appears to be the same problem, since we upgraded our embedded system to linux kernel 3.16. I tried applying the suggested fix of READ_ONCE (and also had to add in the necessary code to compiler.h as 3.16 didn't have it) and unfortunately it did not

Re: Panic with demuxed ipv4 multicast udp sockets on 4.0.4

2015-07-10 Thread Eric Dumazet
On Fri, 2015-07-10 at 13:31 -0700, Alex Gartrell wrote: > Hey everyone, > > There's some kind of nasty condition in which sk_rx_dst points to an > apparently garbage datastructure and it's blowing up in the early > demux code because dst->ops is NULL. The packet in question was for > bit torrent