segfault

[andrewthad]

I get this when after a while:

Dec 30 03:36:18 diamond diamond[5993]: ======= Memory map: ========
Dec 30 03:36:18 diamond diamond[5993]: /nix/store/vp7a1zjhsfhir2mil0fhsz67zhbx22p9-NetSNMP-0.3.2.5/lib/ghc-8.0.1/NetSNMP-0.3.2.5/libHSNetSNMP-0.3.2.5-CWMXlV5vZsoE6FELwCq6wb-ghc8.0.1.so(NetSNMPzm0zi3zi2zi5
Dec 30 03:36:18 diamond diamond[5993]: /nix/store/6qxnqwysgbdpjnk4xd5wq5kmjsvrfs7h-net-snmp-5.7.3/lib/libnetsnmp.so.30(snmp_sess_open+0x113)[0x7fb113c43463]
Dec 30 03:36:18 diamond diamond[5993]: /nix/store/6qxnqwysgbdpjnk4xd5wq5kmjsvrfs7h-net-snmp-5.7.3/lib/libnetsnmp.so.30(netsnmp_tdomain_transport_full+0x380)[0x7fb113c715a0]
Dec 30 03:36:18 diamond diamond[5993]: /nix/store/1jwkjzrivp541v5ibgzb4wc2avla5zx9-glibc-2.24/lib/libc.so.6(+0x7759e)[0x7fb11312c59e]
Dec 30 03:36:18 diamond diamond[5993]: /nix/store/1jwkjzrivp541v5ibgzb4wc2avla5zx9-glibc-2.24/lib/libc.so.6(+0x76d96)[0x7fb11312bd96]
Dec 30 03:36:18 diamond diamond[5993]: /nix/store/1jwkjzrivp541v5ibgzb4wc2avla5zx9-glibc-2.24/lib/libc.so.6(+0x70aa6)[0x7fb113125aa6]
Dec 30 03:36:18 diamond diamond[5993]: ======= Backtrace: =========
Dec 30 03:36:18 diamond diamond[5993]: *** Error in `/nix/store/wd6s3bm8jw8gw0fp591s8n025klaig5d-diamond-0.1.0.0/bin/diamond': free(): invalid next size (fast): 0x00007fb0d4000d50 ***
Dec 30 03:36:17 diamond diamond[5993]: No support for any checked transport domain

I am running multiple net-snmp clients concurrently on different green threads. I'm not sure if that's a problem.

[ptek]

In our application, we are running multiple snmp clients with mapConcurrently to several hosts. The maximum amount of hosts we ever had was around 75 though. Does it work for you if you run it sequentially?