All, After recent updates, hylafax/sendfax fails with the error: sendfax: 460 Failed to submit job 110: Unable to open scheduler FIFO: No such device or address. it had been working find up until the last week or two. Reverting to the LTS kernel resolves the issue. There are no obvious errors in the journal. Does anyone know why sendfax would begin failing with "Unable to open scheduler FIFO: No such device or address." with the current kernel, but work fine on LTS? (I have confirmed this behavior on two separate Arch servers) -- David C. Rankin, J.D.,P.E.