On 3/24/22 15:28, Christoph Hellwig wrote: > On Thu, Mar 24, 2022 at 08:45:56AM +0900, Damien Le Moal wrote: >> Mario, let's check what other distros do first before deciding. Fedora for >> sure has a default of 3 and I have never seen any issue with it (and I >> have been using Fedora for a long time with many different drives). >> >> Not sure what distro you are using, but if it is not Fedora, please check. >> We should check at least Debian, Ubuntu, SUSE, RHEL and CentOS. I can >> check some other minor ones too as I know users. > > Debian: > > hch@brick:~/work/linux$ grep CONFIG_SATA_MOBILE_LPM_POLICY /boot/config-5.10.0-1* > /boot/config-5.10.0-10-amd64:CONFIG_SATA_MOBILE_LPM_POLICY=3 > /boot/config-5.10.0-11-amd64:CONFIG_SATA_MOBILE_LPM_POLICY=3 > /boot/config-5.10.0-12-amd64:CONFIG_SATA_MOBILE_LPM_POLICY=3 Thanks. Debian testing also has the default at 3. Mario reported that Ubuntu and Arch also use 3, and that RHEL has 0 as default but changes it to 3 after boot. Gentoo default config is also 3. Checking CentOS and [open]SUSE now. So far, it is looking like 3 is a sane default. -- Damien Le Moal Western Digital Research
