Created attachment 376416 [details] git bisect log Usually after booting the system and mounting the file systems a lot of I/O errors (ext4 and others) occur on a Lenovo ThinkPad T440p. X (kdm) also always fails to load on the same boot. I'm not sure which comes first: X failing or the I/O errors themselves. Anyway, I bisected this issue to the following kernel commit: [aabf19c27fc72c9c218844c8385744ff5620a229] drm/nouveau/device: recognise GK208 When bisecting, some of the built kernels PANIC-locked on boot, but using the "nomodeset" kernel parameter I was able to boot into userspace and verify whether the I/O errors issue was present (and the aforementioned issues still occurred even with "nomodeset" set).
Created attachment 376418 [details] kernel .config
Created attachment 376420 [details] lspci -k
(In reply to Jaak Ristioja from comment #2) > Created attachment 376420 [details] > lspci -k This output is from an unaffected 3.12.8 kernel boot. Since we've either been unable to log in or save any files / log output after booting the affected kernels.
Probably duplicate of https://bugs.freedesktop.org/show_bug.cgi?id=78530 The issue does not occur when booting with nouveau.modeset=0 as a kernel argument.
We will watch the upstream bug
