Hoi, There is a crashing regression in VPP after https://gerrit.fd.io/r/c/vpp/+/35640
With that change merged, VPP crashes upon creation and deletion of interfaces. Winding back the repo until before 35640 does not crash. The crash happens in 0: /home/pim/src/vpp/src/vlib/stats/stats.h:115 (vlib_stats_get_entry) assertion `entry_index < vec_len (sm->directory_vector)' fails (gdb) bt #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50 #1 0x00007ffff6a5e859 in __GI_abort () at abort.c:79 #2 0x00000000004072e3 in os_panic () at /home/pim/src/vpp/src/vpp/vnet/main.c:413 #3 0x00007ffff6dada29 in debugger () at /home/pim/src/vpp/src/vppinfra/error.c:84 #4 0x00007ffff6dad7fa in _clib_error (how_to_die=2, function_name=0x0, line_number=0, fmt=0x7ffff6f9c19c "%s:%d (%s) assertion `%s' fails") at /home/pim/src/vpp/src/vppinfra/error.c:143 #5 0x00007ffff6f39605 in vlib_stats_get_entry (sm=0x7ffff6fce5e8 <vlib_stats_main>, entry_index=4294967295) at /home/pim/src/vpp/src/vlib/stats/stats.h:115 #6 0x00007ffff6f39273 in vlib_stats_remove_entry (entry_index=4294967295) at /home/pim/src/vpp/src/vlib/stats/stats.c:135 #7 0x00007ffff6ee36d9 in vlib_register_errors (vm=0x7fff96800740, node_index=718, n_errors=0, error_strings=0x0, counters=0x0) at /home/pim/src/vpp/src/vlib/error.c:149 #8 0x00007ffff70b8e0c in setup_tx_node (vm=0x7fff96800740, node_index=718, dev_class=0x7fff973f9fb0) at /home/pim/src/vpp/src/vnet/interface.c:816 #9 0x00007ffff70b7f26 in vnet_register_interface (vnm=0x7ffff7f579a0 <vnet_main>, dev_class_index=31, dev_instance=0, hw_class_index=29, hw_instance=7) at /home/pim/src/vpp/src/vnet/interface.c:1085 #10 0x00007ffff7129efd in vnet_eth_register_interface (vnm=0x7ffff7f579a0 <vnet_main>, r=0x7fff4b288f18) at /home/pim/src/vpp/src/vnet/ethernet/interface.c:376 #11 0x00007ffff712bd05 in vnet_create_loopback_interface (sw_if_indexp=0x7fff4b288fb8, mac_address=0x7fff4b288fb2 "", is_specified=1 '\001', user_instance=0) at /home/pim/src/vpp/src/vnet/ethernet/interface.c:883 #12 0x00007ffff712fecf in create_simulated_ethernet_interfaces (vm=0x7fff96800740, input=0x7fff4b2899d0, cmd=0x7fff973c7e38) at /home/pim/src/vpp/src/vnet/ethernet/interface.c:930 #13 0x00007ffff6ed65e8 in vlib_cli_dispatch_sub_commands (vm=0x7fff96800740, cm=0x42c2f0 <vlib_global_main+48>, input=0x7fff4b2899d0, parent_command_index=1161) at /home/pim/src/vpp/src/vlib/cli.c:592 #14 0x00007ffff6ed6358 in vlib_cli_dispatch_sub_commands (vm=0x7fff96800740, cm=0x42c2f0 <vlib_global_main+48>, input=0x7fff4b2899d0, parent_command_index=33) at /home/pim/src/vpp/src/vlib/cli.c:549 #15 0x00007ffff6ed6358 in vlib_cli_dispatch_sub_commands (vm=0x7fff96800740, cm=0x42c2f0 <vlib_global_main+48>, input=0x7fff4b2899d0, parent_command_index=0) at /home/pim/src/vpp/src/vlib/cli.c:549 #16 0x00007ffff6ed5528 in vlib_cli_input (vm=0x7fff96800740, input=0x7fff4b2899d0, function=0x0, function_arg=0) at /home/pim/src/vpp/src/vlib/cli.c:695 #17 0x00007ffff6f61f21 in unix_cli_exec (vm=0x7fff96800740, input=0x7fff4b289e78, cmd=0x7fff973c99d8) at /home/pim/src/vpp/src/vlib/unix/cli.c:3454 #18 0x00007ffff6ed65e8 in vlib_cli_dispatch_sub_commands (vm=0x7fff96800740, cm=0x42c2f0 <vlib_global_main+48>, input=0x7fff4b289e78, parent_command_index=0) at /home/pim/src/vpp/src/vlib/cli.c:592 #19 0x00007ffff6ed5528 in vlib_cli_input (vm=0x7fff96800740, input=0x7fff4b289e78, function=0x7ffff6f55960 <unix_vlib_cli_output>, function_arg=1) at /home/pim/src/vpp/src/vlib/cli.c:695 This is caught by a local regression test ( https://github.com/pimvanpelt/vppcfg/tree/main/intest) that executes a bunch of CLI statements, and I have a set of transitions there which I can probably narrow down to an exact repro case. On Fri, Apr 1, 2022 at 3:08 PM Pim van Pelt via lists.fd.io <pim= ipng...@lists.fd.io> wrote: > Hoi, > > As a followup - I tried to remember why I copied class VPPStats() and > friends into my own repository, but that may be because it's not exported > in __init__.py. Should it be? I pulled in the latest changed Damjan made to > vpp_stats.py into my own repo, and my app runs again. Is it possibly worth > our while to add the VPPStats() class to the exported classes in vpp_papi ? > > groet, > Pim > > On Fri, Apr 1, 2022 at 2:50 PM Pim van Pelt via lists.fd.io <pim= > ipng...@lists.fd.io> wrote: > >> Hoi, >> >> I noticed that my VPP SNMP Agent no longer works with the python API at >> HEAD, and my attention was drawn to this change: >> https://gerrit.fd.io/r/c/vpp/+/35640 >> stats: convert error counters to normal counters >> At HEAD, src/vpp-api/python/vpp_papi/vpp_stats.py now fails 4 out of 6 >> tests with the same error as my application: >> struct.error: offset -140393469444104 out of range for 1073741824-byte >> buffer >> .. >> Ran 6 tests in 0.612s >> FAILED (errors=4) >> >> Damjan, Ole, any clues? >> >> groet, >> Pim >> -- >> Pim van Pelt <p...@ipng.nl> >> PBVP1-RIPE - http://www.ipng.nl/ >> >> >> >> > > -- > Pim van Pelt <p...@ipng.nl> > PBVP1-RIPE - http://www.ipng.nl/ > > > > -- Pim van Pelt <p...@ipng.nl> PBVP1-RIPE - http://www.ipng.nl/
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