Hi Damjan, Just tried the vcl tests and the debug version works just fine. The release images crash (at least in the test I’m looking at) doing:
memset (f, 0, sizeof (*f)) >From gdb: (gdb) x/i $pc => 0x7f15fcd329f4 <fs_try_alloc_fifo_batch+388>: movaps %xmm0,0x1f0(%rdi,%rbp,1) (gdb) i r rdi rdi 0x204024780 8657192832 (gdb) i r rbp rbp 0x100018 0x100018 (gdb) p f $7 = (svm_fifo_t *) 0x204024780 <- the thing being memset If my math is correct, the right hand operator is 0x1f0 + 0x204024780 + 0x100018 = 0x204124988. Doesn’t look to be aligned. Could this be the issue? Florin > On Apr 28, 2020, at 7:13 AM, Damjan Marion via lists.fd.io > <dmarion=me....@lists.fd.io> wrote: > > > Folks, > > As there is bug in gnu assembler which is shipping with ubuntu 18.04 we are > not able to produce working binaries with avx512 instruction set. > Because of that, I had to change default to avx2. reported bug[1], but it is > ignored for a year. > > As alternative[2], I wanted to consider using clang-9 which is shipped with > ubuntu 18.04 and seems like it is even capable of producing faster binaries > than gcc. > Unfortunately, "make test" is failing at several places including vxlan, > ipsec and tcp stack[3]. > > May I ask folks who “own” that code to take a quick look? > > Thanks, > > Damjan > > [1] https://bugs.launchpad.net/ubuntu/cosmic/+source/binutils/+bug/1819961 > <https://bugs.launchpad.net/ubuntu/cosmic/+source/binutils/+bug/1819961> > [2] https://gerrit.fd.io/r/c/vpp/+/26744 > <https://gerrit.fd.io/r/c/vpp/+/26744> > [3] https://jenkins.fd.io/job/vpp-verify-master-ubuntu1804/3615/console > <https://jenkins.fd.io/job/vpp-verify-master-ubuntu1804/3615/console> > > > >
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