<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style> </head> <body dir="ltr"> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof"> Hello, I am new to dpdk ... i would like to trace memory usage and detect memory leaks, valgrind as well as address sanitizer (gcc) report some memory loss at application end. For the life of me, i cannot figure it out ... i just write a simple program that has the rte_eal_init + rte_eal_cleanup and i get the following error (also tried helloworld from examples, with same results): ==3399==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7f6ca3efb480 at pc 0x7f6ca7162b61 bp 0x7f6ca3efb450 sp 0x7f6ca3efac00 WRITE of size 24 at 0x7f6ca3efb480 thread T-1 #0 0x7f6ca7162b60 in __interceptor_sigaltstack.part.0 (/lib64/libasan.so.8+0x61b60) #1 0x7f6ca71d9337 in __sanitizer::UnsetAlternateSignalStack() (/lib64/libasan.so.8+0xd8337) #2 0x7f6ca71c90f4 in __asan::AsanThread::Destroy() (/lib64/libasan.so.8+0xc80f4) #3 0x7f6ca679b000 in __GI___nptl_deallocate_tsd (/lib64/libc.so.6+0x8a000) #4 0x7f6ca679dc9d in start_thread (/lib64/libc.so.6+0x8cc9d) #5 0x7f6ca68235df in __GI___clone3 (/lib64/libc.so.6+0x1125df) <div class="_1qeIAgB0cPwnLhDF9XSiJM elementToProof" style="margin-top: 0px; margin-bottom: 0px;"> Address 0x7f6ca3efb480 is a wild pointer inside of access range of size 0x000000000018. SUMMARY: AddressSanitizer: stack-buffer-overflow (/lib64/libasan.so.8+0x61b60) in __interceptor_sigaltstack.part.0 Shadow bytes around the buggy address: 0x0fee147d7640: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00 0x0fee147d7650: 00 00 00 00 00 00 00 00 00 06 f2 f2 f2 f2 00 00 0x0fee147d7660: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0fee147d7670: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0fee147d7680: 00 00 00 00 00 00 00 00 00 00 00 04 f3 f3 f3 f3 =>0x0fee147d7690:[f3]f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 0x0fee147d76a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0fee147d76b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0fee147d76c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0fee147d76d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0fee147d76e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb ==3399==ABORTING </div> <div class="_1qeIAgB0cPwnLhDF9XSiJM elementToProof" style="margin-top: 0px; margin-bottom: 0px;"> </div> <div class="_1qeIAgB0cPwnLhDF9XSiJM elementToProof" style="margin-top: 0px; margin-bottom: 0px;"> I am not sure what I m doing wrong but it is very frustrating. On top of that, I try other scenarios and see if I can just "ignore" that and still detect other memory leaks but it does not work. I get memory from rte_malloc and don't free it and I still get the above report only, I do not get any report from the memory I leaked intentionally ... no difference what so ever .... I tried the same with the helloworld example and I get the same results .... Please, if anyone can shed some light and point me in any direction ... I have already searched google for 2 days with nothing new ... surely, I m doing something wrong but I believe I have read everything I can find on google related to tracing memory in dpdk and there is very little information about it and mostly dismiss valgrind and favor the address sanitizer ... specs: Fedora 36 server edition (KVM vm) gcc (GCC) 12.1.1 20220507 (Red Hat 12.1.1-1) dpdk 22.03 (compiled with: -Dbuildtype=debug -Dprefix=/path/to/lib/dpdk-22.03/debug/ -Dtests=false -Denable_kmods=true -Denable_trace_fp=true -Db_sanitize=address) </div> </div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof"> thank you very much! </div> </body> </html>