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The original was posted on /r/fedora by /u/cleitophon on 2023-12-15 00:17:59.

Anyone else having trouble with kernel 6.6.6?

I’ve tested it on four machines:

• Thinkpad Z13 (AMD-based): running Fedora 39, it won’t boot to the graphical.target (boots fine to multi-user.target)
• Thinkpad Z16 (AMD-based): running Fedora 38, it won’t boot to the graphical.target (boots fine to multi-user.target); is fine booting into 6.6.4.
• Thinkpad P53 (Intel with NVIDIA drivers), running Fedora 39: it booted fine to gdm but gnome-shell segfaulted the first time I logged in (the cause appears to be “Too many open files”)
• MSI (Intel with NVIDIA drivers) machine running Fedora 39: same as the P53.

I’m testing this kernel because some colleagues couldn’t boot it. And, for once, I’m having zero trouble recreating an issue. I’m going through the journal entries, but there are enough errors that it is difficult to pinpoint the root cause for the AMD machines. The proximate cause for the gnome-shell segfaults on the Intel machines appears to be “Too many open files”, but I can’t tell from the journal entries why it is suddenly running into that. (The Intel-based machines have been running Fedora fine for three years plus at least.)