Re: kern/60746: kernel diagnostic assertion "ino >= LFS_IFILE_INUM" failed: file "../../../../ufs/lfs/lfs_vfsops.c", line 1800

["Shinichi Doyashiki via gnats" <gnats-admin%NetBSD.org@localhost>]

The following reply was made to PR kern/60746; it has been noted by GNATS.

From: Shinichi Doyashiki <clare%csel.org@localhost>
To: gnats-bugs%netbsd.org@localhost, Konrad Schroder <perseant%hhhh.org@localhost>
Cc: 
Subject:  Re: kern/60746: kernel diagnostic assertion "ino >= LFS_IFILE_INUM" failed:
 file "../../../../ufs/lfs/lfs_vfsops.c", line 1800
Date: Sun, 20 Sep 2026 13:30:59 +0900

 > >> after the patch applied, I got following result.
 > >> [ 152.8764894] panic: kernel diagnostic assertion "ino >= LFS_IFILE_INUM" failed: file "../../../../ufs/lfs/lfs_kclean.c", line 674
 > Okay, something else is wrong.  We should never see an FINFO for a 
 > non-positive inode number.  I'm very curious what it is writing.  Could 
 > you please try the following/attached patch instead, and when it panics, 
 > send both the panic message and the output of "dumplfs -s <segment 
 > number> /dev/rdk4" for the segment it reports?
 
 after the patch replaced, I got following result.
 
 [  65.9236610] panic: kernel diagnostic assertion "(ino >= LFS_IFILE_INUM)" failed: file "../../../../ufs/lfs/lfs_kclean.c", line 619 nonpositive inum: 0 at offset 0x8bd (seg 34)
 [  65.9336670] cpu1: Begin traceback...
 [  65.9436693] vpanic() at netbsd:vpanic+0x171
 [  65.9436693] kern_assert() at netbsd:kern_assert+0x4b
 [  65.9536736] ino_func_checkempty() at netbsd:ino_func_checkempty+0x319
 [  65.9636784] lfs_parse_pseg() at netbsd:lfs_parse_pseg+0x850
 [  65.9636784] lfs_checkempty() at netbsd:lfs_checkempty+0xec
 [  65.9736833] lfs_markclean() at netbsd:lfs_markclean+0x3e
 [  65.9736833] lfs_auto_segclean() at netbsd:lfs_auto_segclean+0x22a
 [  65.9836883] lfs_segunlock() at netbsd:lfs_segunlock+0x760
 [  65.9936931] lfs_segwrite() at netbsd:lfs_segwrite+0x531
 [  65.9936931] lfs_sync() at netbsd:lfs_sync+0xc6
 [  66.0036981] VFS_SYNC() at netbsd:VFS_SYNC+0x22
 [  66.0036981] do_sys_sync() at netbsd:do_sys_sync+0x65
 [  66.0137056] sys_sync() at netbsd:sys_sync+0x9
 [  66.0237079] syscall() at netbsd:syscall+0x9d
 [  66.0237079] --- syscall (number 36) ---
 [  66.0237079] netbsd:syscall+0x9d:
 [  66.0337128] cpu1: End traceback...
 
 # dumplfs -s 34 /dev/rdk4
 Master LFS32 superblock at 0x10:
     magic    0x70162     version  0x2         size     65536     
     ssize    32768       dsize    58784       bsize    1024      
     fsize    512         frag     2           ibsize   512       
     inopb    4           ifpb     51          nindir   256       
     nseg     1023        sepb     42          cleansz  1         
     segtabsz 25          segmask  0x0         segshift 0         
     bmask    0x3ff       bshift   10          ffmask   0x1FF     
     ffshift  9           fbmask   0x1         fbshift  1
     sushift  0           fsbtodb  0           cksum    0xcb8b    
     nclean   987         dmeta    54          minfreeseg 102       
     roll_id  0x9aab59fb  interleave 0         sumsize  512       
     minfree  10          seg0addr 0           maxfilesize  0x404043000
   Superblock disk addresses:
      0x10       0x1980     0x3300     0x4c80     0x6600     0x7f80    
      0x9900     0xb280     0xcc00     0xe580    
   Checkpoint Info
     freehd   3           idaddr   0x8de     
     uinodes  0           bfree    58659       avail    59793     
     nfiles   0           lastseg  0x880       nextseg  0x900     
     curseg   0x8c0       offset   0x8df       serial   43        
     tstamp   Sun Sep 20 13:21:28 2026
   32-bit only derived or constant fields
     ifile    1         
 
 IFILE inode
     mode  o100600       nlink 1 uid   0 gid   0 size  27648
     atime Thu Jan  1 09:00:00 1970
     mtime Sun Sep 20 13:21:28 2026
     ctime Sun Sep 20 13:21:18 2026
     inum  1     nblocks  56
     Direct Addresses
         0x8d6   0x8d8   0x45    0x47    0x49    0x4b
         0x4d    0x4f    0x51    0x53    0x55    0x57
     Indirect Addresses
         0x8dc   0x0     0x0
 
 IFILE contents
 free_head 3
 free_tail 50
 clean   987     dirty   36
 bfree   56609   avail   59816
 
 
 SEGMENT 34 (Disk Address 0x880)
 Segment Summary Info at 0x880
     next     0x8c0      nfinfo   1      ninos    3      flags    D---
     sumsum   0x6c63     datasum  0x8912 create   Sun Sep 20 13:21:27 2026
     roll_id  9aab59fb   serial   39
     Inode addresses:
         0x8bd {3v1, 2v1, 3v1}
     FINFO for inode: 3 version 1 nblocks 30 lastlength 1024
         999     1000    1001    1002    1003    1004    1005    1006
         1007    1008    1009    1010    1011    1012    1013    1014
         1015    1016    1017    1018    1019    1020    1021    1022
         1023    -780    -524    -268    -12     -269
 Found magic number 0x0 expecting 0x61561