Hi Michal/DPDK-Experts,I am facing one issue in net/ena driver while fetching extended stats (xstats). The DPDK seems to segfault with below backtrace.DPDK Version: 20.11.1ENA version: 2.2.1Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/opt/dpfs/usr/local/bin/brdagent'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 __memmove_avx_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:232
232 VMOVU %VEC(0), (%rdi)
[Current thread is 1 (Thread 0x7fffed93a400 (LWP 5060))]
Thread 1 (Thread 0x7fffed93a400 (LWP 5060)):
#0 __memmove_avx_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:232
#1 0x00007ffff3c246df in ena_com_handle_admin_completion () from ../lib64/../../lib64/libdpdk.so.20
#2 0x00007ffff3c1e7f5 in ena_interrupt_handler_rte () from ../lib64/../../lib64/libdpdk.so.20
#3 0x00007ffff3519902 in eal_intr_thread_main () from /../lib64/../../lib64/libdpdk.so.20
#4 0x00007ffff510714a in start_thread (arg=<optimized out>) at pthread_create.c:479
#5 0x00007ffff561ff23 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Background:
- This used to work fine with DPDK-19.11.3 , that means there was no crash observed with the 19.11.3 DPDK version, but now after upgrading to DPDK 20.11.1, DPDK is crashing with the above trace.
- It looks to me as a DPDK issue.
- I could see multiple fixes/patches in the net/ena area, but not able to identify which patch would exactly fix this issue.
Could you please help here and let me know what patch could fix this issue.RegardsAmiya