The 5.3 kernel is out [LWN.net]

The 5.3 kernel is out

Posted Sep 16, 2019 9:51 UTC (Mon) by intgr (subscriber, #39733)
Parent article: The 5.3 kernel is out

Before anyone jumps the gun to blame systemd on the ext4 revert (as did Torvalds in his commit message), note that the real cause for boot hanging was not in systemd, but actually in Xorg/GDM/gnome-session using getrandom() for the X11 authentication cookie: https://www.lkml.org/lkml/2019/9/15/314

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The 5.3 kernel is out

Posted Sep 16, 2019 11:09 UTC (Mon) by darwi (subscriber, #131202) [Link]

Yeah, I did some quick damage recovery in the early morning to make sure people don't blame systemd :-)

- https://lkml.kernel.org/r/20190916014050.GA7002@darwi-hom...
- https://lkml.kernel.org/r/20190916024904.GA22035@mit.edu
- https://lkml.kernel.org/r/20190916024550.GA1352@darwi-hom...

systemd-random-seed(8) was actually, as Linus thankfully acknowledged later, one of the good users of getrandom(2).

It's __not__ GDM/gnome-session fault either. please check:

- https://lkml.kernel.org/r/20190915081747.GA1058@darwi-hom...
- https://lwn.net/Articles/799271

The 5.3 kernel is out

Posted Sep 16, 2019 23:09 UTC (Mon) by flussence (guest, #85566) [Link] (1 responses)

Presumably this problem would go away if we all just switched to Wayland? ;)

The 5.3 kernel is out

Posted Sep 17, 2019 20:39 UTC (Tue) by adobriyan (guest, #30858) [Link]

Or someone could write an en-fragmenter, so that fs could do a little more IO during bootup :-)