17/01/2019 14:12, David Marchand: > In the unlikely case when the dpdk application is started with no cpu > available in the [0, RTE_MAX_LCORE - 1] range, the master_lcore is > automatically chosen as RTE_MAX_LCORE which triggers an out of bound > access. > > Either you have a crash then, or the initialisation fails later when > trying to pin the master thread on it. > In my test, with RTE_MAX_LCORE == 2: > > $ taskset -c 2 ./master/app/testpmd --no-huge -m 512 --log-level *:debug > [...] > EAL: pthread_setaffinity_np failed > PANIC in eal_thread_init_master(): > cannot set affinity > 7: [./master/app/testpmd() [0x47f629]] > > Bugzilla ID: 19 > Signed-off-by: David Marchand <david.march...@redhat.com>
We should backport this fix. When this bug has been introduced?