I've got a Dell XPS13 2015 running 5.4.1 with the latest packages from a few days ago. I compiled Firefox last night which managed to hang the system within a few minutes (if I can fix this I'll move on to that problem next). The system has been otherwise stable in X, but it completely locked up with Firefox. I couldn't get back to the terminal so I powered off the laptop for the night and this morning was greeted with:
da0: supports TRIM Mounting root from hammer:serno/S1D3NYAG209909.s1d HAMMER(ROOT) recovery check seqno:00e1fa5d HAMMER(ROOT) recovery range <guid> HAMMER(ROOT) recovery nexto <guid> HAMMER(ROOT) recovery undo <guid> (536554448 bytes)(RW) HAMMER(ROOT) Found REDO_SYNC <partial-guid> HAMMER(ROOT) Ignoring extra REDO_SYNC records in UNDO/REDO FIFO. HAMMER(ROOT) recovery complete HAMMER(ROOT) recovery redo <guid> (536554448 bytes)(RW) HAMMER(ROOT) Embedded extended redo <partial-guid>, (-536554448 bytes)(RW) HAMMER: FIFO record bad head signature 0000 at <partial-guid> HAMMER(ROOT) Illegal UNDO TAIL signature at <partial-guid> HAMMER(ROOT) End redorecovery Root mount failed: 5 followed by the dreaded mountroot> prompt. Excuse the <guid> nonsense, I have no good way of getting the log over to another PC except as an image so I manually transcribed it. The only references I've seen to similar errors are from 2012/2013 and I didn't see a remediation other than kernel patches. This is a default partition setup by the installer on a Samsung PM851 250GB SATA SSD. So far this was merely a system I've been tinkering with. If I have to nuke it that's fine, I can mount the drive read only via the installer media so I can at least copy off my configs if necessary. Thanks for any pointers, Nick
