Hi, should I also get the freeze from the F28 live media? I have a T450s (which worked fine with your LPM test kernels few months ago) but cannot migrate to 28 yet. Greetings, Christian On 04/29/2018 10:34 AM, Hans de Goede wrote: > Hi, > > On 29-04-18 09:25, Hans de Goede wrote: >> Hi All, >> >> I'm sending this to the fedora-kernel and -devel lists >> both to get the kernel team aware of this and because it >> is not entirely clear to me how to best deal with this. >> >> I guess we should get this added to the release-notes / >> common-bugs page for F28, but I'm not sure what the >> procedure is for that ? >> >> I've just become aware that at least for some users >> the use of SATA LPM in F28 causes the Lenovo 50 >> series laptops (confirmed X250, T450s G50-80) freeze/ >> hang hard under certain conditions when using SATA >> LPM, independent of the disk used (*). >> >> This is currently being tracked in: >> https://bugzilla.redhat.com/show_bug.cgi?id=1571330 >> >> A known workaround is to add: "ahci.mobile_lpm_policy=0" >> to the kernel boot command line. >> >> Can someone help me to get this documented? Once we've >> figured out what is going on I hope to be able to fix this >> with a kernel update, but people may still need the >> workaround to install Fedora 28. >> >> Also if people are using Fedora 28 on a 50 series Lenovo >> laptop without issues, please let me know. > > Some more info on this, the user with a x250 is reporting > the problem is hard-freeze about once a day, which goes > away when disabling LPM, so if you have a 50 series Lenovo > laptop and are seeing the occasional hard-freeze this may > be the cause. > > Regards, > > Hans > _______________________________________________ > devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx
