Hello again, I tried to convert my statically defined buffers into buffers allocated through rte_malloc (as discussed in the previous email, see quoted text). Unfortunately, the problem is still there :( Regards, Harold
> > 2. How do you know you have the packet loss? > > > *I know it because some fragmented packets never get reassembled fully. If > I print the packets seen by the server I see something like "PCKT_ID 10 > FRAG 250, PCKT_ID 10 FRAG 252". And FRAG 251 is never printed.* > > *Actually, something strange that happens sometimes is that a core > receives fragments of two packets and, say, receives frag 1 of packet X, > frag 2 of packet Y, frag 3 of packet X, frag 4 of packet Y.* > *Or that, after "losing" a fragment for packet X, I only see printed > fragments with EVEN frag_id for that packet X. At least for a while.* > > *This led me also to consider a bug in my implementation (I don't > experience this problem if I run with a SINGLE client thread). However, > with smaller payloads, even fragmented, everything runs smoothly.* > *If you have any suggestions for tests to run to spot a possible bug in my > implementation, It'd be more than welcome!* > > *MORE ON THIS: the buffers in which I store the packets taken from RX are > statically defined arrays, like struct rte_mbuf* temp_mbuf[SIZE]. SIZE > can be pretty high (say, 10K entries), and there are 3 of those arrays per > core. Can it be that, somehow, they mess up the memory layout (e.g., they > intersect)?* >
