NILFS error after power loss

[mikael-m2T68/X/qvZAfugRpC6u6w@public.gmane.org]

Hi,

The battery in my laptop, Lenovo X1 Carbon, with NixOS version 17.03 ran 
out of power in May. When I started the laptop again, it did not boot 
properly. I have used another laptop since then.

I booted it with a Live USB with NixOS 17.03 and followed the 
instructions under the section 'NILFS got stuck' at 
http://nilfs.sourceforge.net/en/faq.html:

# echo t > /proc/sysrq-trigger
# dmesg

I should say I have no prior experience of sysrq. Anyhow, you can see 
the dmesg output at the following link:

https://mega.nz/#F!4UoFwYaQ!u7GEnZ3n0BUyNexe3vI2-w

Please get back to me if you want more information.

Not sure if this is of any interest but this is an excerpt from 
journalctl:

Apr 24 06:55:22 nixos kernel: NILFS (dm-0): bad btree node (ino=1609, 
blocknr=13626216): level = 51, flags = 0x44, nchildren = 12298
Apr 24 06:55:22 nixos kernel: NILFS error (device dm-0): 
nilfs_bmap_lookup_contig: broken bmap (inode number=1609)
Apr 24 06:55:22 nixos kernel: Remounting filesystem read-only
Apr 24 06:55:22 nixos kernel: NILFS (dm-0): bad btree node (ino=1609, 
blocknr=13626216): level = 51, flags = 0x44, nchildren = 12298
Apr 24 06:55:22 nixos kernel: NILFS error (device dm-0): 
nilfs_bmap_lookup_contig: broken bmap (inode number=1609)
Apr 24 06:55:22 nixos kernel: NILFS (dm-0): bad btree node (ino=1609, 
blocknr=13626216): level = 51, flags = 0x44, nchildren = 12298
Apr 24 06:55:22 nixos kernel: NILFS error (device dm-0): 
nilfs_bmap_lookup_contig: broken bmap (inode number=1609)
Apr 24 06:55:22 nixos kernel: NILFS (dm-0): bad btree node (ino=1609, 
blocknr=13626216): level = 51, flags = 0x44, nchildren = 12298
Apr 24 06:55:22 nixos kernel: NILFS error (device dm-0): 
nilfs_bmap_lookup_contig: broken bmap (inode number=1609)
Apr 24 06:55:22 nixos kernel: NILFS (dm-0): bad btree node (ino=1609, 
blocknr=13626216): level = 51, flags = 0x44, nchildren = 12298
Apr 24 06:55:22 nixos kernel: NILFS error (device dm-0): 
nilfs_bmap_lookup_contig: broken bmap (inode number=1609)
Apr 24 06:55:22 nixos kernel: NILFS (dm-0): bad btree node (ino=1609, 
blocknr=13626216): level = 51, flags = 0x44, nchildren = 12298
Apr 24 06:55:22 nixos kernel: NILFS error (device dm-0): 
nilfs_bmap_lookup_contig: broken bmap (inode number=1609)
Apr 24 06:55:22 nixos kernel: NILFS (dm-0): bad btree node (ino=1609, 
blocknr=13626216): level = 51, flags = 0x44, nchildren = 12298
Apr 24 06:55:22 nixos kernel: NILFS error (device dm-0): 
nilfs_bmap_lookup_contig: broken bmap (inode number=1609)
Apr 24 06:55:22 nixos kernel: NILFS (dm-0): bad btree node (ino=1609, 
blocknr=13626216): level = 51, flags = 0x44, nchildren = 12298
Apr 24 06:55:22 nixos kernel: NILFS error (device dm-0): 
nilfs_bmap_lookup_contig: broken bmap (inode number=1609)
Apr 24 06:55:22 nixos kernel: NILFS (dm-0): bad btree node (ino=1609, 
blocknr=13626216): level = 51, flags = 0x44, nchildren = 12298
Apr 24 06:55:22 nixos kernel: NILFS error (device dm-0): 
nilfs_bmap_lookup_contig: broken bmap (inode number=1609)
Apr


Kind regards,

Mikael Andersson
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