Hi Murthy, I do not think it is not a known issue. I can see it is a global vector and we change its size a few line below. Is there any chance that vl_socket_read_ready() could be called from different threads?
Best ben > -----Original Message----- > From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Satya Murthy > Sent: lundi 25 janvier 2021 10:21 > To: vpp-dev@lists.fd.io > Subject: [vpp-dev] VPP crash after enabling address sanitizer > > Hi, > > Tried enabling Google address sanitizer in VPP by looking at the following > Wiki. > https://fd.io/docs/vpp/master/troubleshooting/sanitizer.html > > After this, we are seeing that ASAN is detecting errors in VPP-API infra > code and crashing. > One of the crash is as below. > > > ==17226==ERROR: AddressSanitizer: use-after-poison on address > 0x7fffc519aa5f at pc 0x7ffff6e9d67d bp 0x7fffb70318b0 sp 0x7fffb7031058 > WRITE of size 61 at 0x7fffc519aa5f thread T0 (vpp_main) > #0 0x7ffff6e9d67c (/lib64/libasan.so.5+0x9367c) > #1 0x7ffff6b90682 in vl_socket_read_ready > /fdio.2005/src/vlibmemory/socket_api.c:240 > #2 0x7ffff3358cf6 in linux_epoll_input_inline > /fdio.2005/src/vlib/unix/input.c:322 > #3 0x7ffff335959c in linux_epoll_input > /fdio.2005/src/vlib/unix/input.c:372 > #4 0x7ffff326b690 in dispatch_node /fdio.2005/src/vlib/main.c:1271 > #5 0x7ffff327073b in vlib_main_or_worker_loop > /fdio.2005/src/vlib/main.c:1958 > #6 0x7ffff32724f7 in vlib_main_loop /fdio.2005/src/vlib/main.c:2141 > #7 0x7ffff3273bdb in vlib_main /fdio.2005/src/vlib/main.c:2387 > #8 0x7ffff335e22b in thread0 /fdio.2005/src/vlib/unix/main.c:673 > #9 0x7ffff27010b7 (/fdio.2005/build-root/install-vpp_debug- > native/vpp/lib/libvppinfra.so.20.05.1+0xc90b7) > > > The problematic is pointing to > > > clib_error_t * > vl_socket_read_ready (clib_file_t * uf) > { > ... > .... > > > /* Ignore unprocessed_input for now, n describes input_buffer for now. > */ > n = read (uf->file_descriptor, socket_main.input_buffer, vec_len > (socket_main.input_buffer)); <<<<<<<<<<<<<<<<<<<<<< This is the line > ASAN is pointing to. > } > > Is this a known issue (or) anything else we need to change to get it going > with ASAN build. > Please let us know. > > > > > -- > Thanks & Regards, > Murthy
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