Re: [casper] Multi-instance hashpipe "pktsock" on single interface

2020-12-03 Thread Wael Farah
(Email from Ross that didn't make it through because he's not subscribed to the casper list yet) Hello all, Ross here, I have been working on the development Wael mentioned, and was a witness to the issues, so I'd like to expand on the original message. As per the points of the two responses: 1.

Re: [casper] Dropped packets during HASHPIPE data acquisition

2020-12-03 Thread Mark Ruzindana
Thanks for the suggestion David! I was starting hashpipe in the debugger. I'll use gdb and the core file, and let you know what I find. If I still can't figure out the problem, I will send you a minimum non-working example. I definitely think it's some sort of pointer arithmetic error as well, I j

Re: [casper] Multi-instance hashpipe "pktsock" on single interface

2020-12-03 Thread David MacMahon
Hi, Wael, I think I know what's going on here. You don't say how the reported data rate differed from expected, but I suspect the reported data rate was higher than expected. Packet sockets are a low level packet delivery mechanism supported by the kernel. It allows the kernel to copy packet

Re: [casper] Dropped packets during HASHPIPE data acquisition

2020-12-03 Thread David MacMahon
Hi, Mark, Sorry to hear you're still getting a segfault. It sounds like you made some progress with gdb, but the fact that you ended up with a different sort of error suggests that you were starting hashpipe in the debugger. To debug your initial segfault problem, you can run hashpipe without