On Sun, 11 Mar 2018 09:46:21 +0100, Дмитрий wrote: >I use a piece software called ecasound to push a stream from digital >input to the output. I've been using it on RPi box with Raspbian since >"Jessie" release. After updating it to "Stretch" I started to get such >error messages when I run ecasound like this "/usr/bin/ecasound >-B:rtlowlatency -b:256 -f:32,2,48000 -i:alsahw,1,0 -o:alsa,softvol": > >> ALSA: Unknown device state '3' >> ALSA: playback xrun handling failed! > >It happens when an input stream is stopped. I need to restart ecasound >to get it working. I guess something is changed in ALSA in Debain >"Stretch", because in "Jessie" I didn't have such issue. Is there a >way to prevent such behavior? Hi, just a shot into the dark, maybe it's not ALSA, but Meltdown and Spectre mitigation. I don't know if firmware/microcode is updated or KAISER or KPTI patch sets are applied to the kernel used by your distro's release, neither do I know if they affect DSP load. However, Meltdown and Spectre mitigation could have impact on performance. [rocketmouse@archlinux ~]$ uname -rm 4.14.24-rt19-1-rt x86_64 [rocketmouse@archlinux ~]$ cat /sys/devices/system/cpu/vulnerabilities/* Mitigation: PTI Mitigation: __user pointer sanitization Mitigation: Full generic retpoline Try booting with nokaiser or nopti . After doing so, the output should look like this: [rocketmouse@archlinux ~]$ cat /sys/devices/system/cpu/vulnerabilities/* Vulnerable Mitigation: __user pointer sanitization Mitigation: Full generic retpoline Regards, Ralf ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
