<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> </head> <body> <div style="color: rgb(33, 33, 33); background-color: rgb(255, 255, 255);" dir="auto"> Thank you very much, I will try that. </div> <div id="ms-outlook-mobile-signature" dir="auto"> <div> </div> Get <a href="https://aka.ms/AAb9ysg">Outlook for Android</a></div> <hr style="display:inline-block;width:98%" tabindex="-1"> <div id="divRplyFwdMsg" dir="ltr">From: David Marchand <david.marchand@redhat.com> Sent: Thursday, June 16, 2022 11:45:33 PM To: Juan Pablo L. <jpablolorenzetti@hotmail.com> Cc: users@dpdk.org <users@dpdk.org>; Burakov, Anatoly <anatoly.burakov@intel.com>; Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>; dev <dev@dpdk.org>; ci@dpdk.org <ci@dpdk.org> Subject: Re: dpdk address sanitizer <div> </div> </div> <div class="BodyFragment"> <div class="PlainText">Hello, On Fri, Jun 17, 2022 at 6:08 AM Juan Pablo L. <jpablolorenzetti@hotmail.com> wrote: > > 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) > > 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 > > 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 .... I experienced the same issue recently on Fedora 36. I did not investigate. I think I waived this warning, by setting ASAN_OPTIONS="use_sigaltstack=0" in the environment. HTH. -- David Marchand </div> </div> </body> </html>