Archivo mensual: febrero 2020

task blocked for more than 120 seconds


When we run very stressful jobs on clustered environments, where IO activity is very high. It is pretty common to start seeing these messages on the ‘dmesg’ kernel output: [24169.372862] INFO: task kswapd1:1140 blocked for more than 120 seconds. [24169.375623] … Seguir leyendo

Publicado en Uncategorized | Etiquetado , , | Deja un comentario

failed to alloc buffer for rx queue


If we put enough pressure over the ENA network driver, we’ll start seeing these “failed to alloc buffer for rx queue” messages on the ‘dmesg‘ output. [56459.833033] ena 0000:00:05.0 eth0: failed to alloc buffer for rx queue 4 [56459.836477] ena … Seguir leyendo

Publicado en Uncategorized | Etiquetado , , | Deja un comentario