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

["clare%csel.org@localhost via gnats" <gnats-admin%NetBSD.org@localhost>]

>Number:         60746
>Category:       kern
>Synopsis:       kernel diagnostic assertion "ino >= LFS_IFILE_INUM" failed: file "../../../../ufs/lfs/lfs_vfsops.c", line 1800
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Sep 19 07:50:00 +0000 2026
>Originator:     Shinichi Doyashiki
>Release:        11.99.8 around 2026-09-12
>Organization:
at home
>Environment:
NetBSD kanade2.hq.csel.org 11.99.8 NetBSD 11.99.8 (KANADE2_12) #9: Sat Sep 12 20:38:51 JST 2026  clare%kanade2.hq.csel.org@localhost:/export/netbsd/debuglfs/src/sys/arch/amd64/compile/KANADE2_12 amd64

>Description:
a panic was observed while test.

[ 526883.5217532] panic: kernel diagnostic assertion "ino >= LFS_IFILE_INUM" failed: file "../../../../ufs/lfs/lfs_vfsops.c", line 1800 
[ 526883.5408887] cpu0: Begin traceback...
[ 526883.5447717] vpanic() at netbsd:vpanic+0x171
[ 526883.5447717] kern_assert() at netbsd:kern_assert+0x4b
[ 526883.5537123] lfs_loadvnode() at netbsd:lfs_loadvnode+0x60d
[ 526883.5625589] vcache_get() at netbsd:vcache_get+0x1cf
[ 526883.5625589] lfs_vget() at netbsd:lfs_vget+0x23
[ 526883.5724008] finfo_func_checkempty() at netbsd:finfo_func_checkempty+0x58
[ 526883.5824602] lfs_parse_pseg() at netbsd:lfs_parse_pseg+0x398
[ 526883.5824602] lfs_checkempty() at netbsd:lfs_checkempty+0xec
[ 526883.5934519] lfs_markclean() at netbsd:lfs_markclean+0x3e
[ 526883.6023696] lfs_auto_segclean() at netbsd:lfs_auto_segclean+0x22a
[ 526883.6023696] lfs_segunlock() at netbsd:lfs_segunlock+0x760
[ 526883.6140694] lfs_segwrite() at netbsd:lfs_segwrite+0x531
[ 526883.6227953] lfs_sync() at netbsd:lfs_sync+0xc6
[ 526883.6227953] VFS_SYNC() at netbsd:VFS_SYNC+0x22
[ 526883.6322588] do_sys_sync() at netbsd:do_sys_sync+0x65
[ 526883.6417495] sys_sync() at netbsd:sys_sync+0x9
[ 526883.6417495] syscall() at netbsd:syscall+0x9d
[ 526883.6520158] --- syscall (number 36) ---
[ 526883.6520158] netbsd:syscall+0x9d:
[ 526883.6520158] cpu0: End traceback...

>How-To-Repeat:
1. create a small (32MB or so) of LFS partition
2. run following test script

#!/bin/sh
#
# LFS umount while cleaner test
#
mkdir -p /testlfs
count=0
while [ true ]; do
  count=`expr $count + 1`
  echo "===> MOUNT $count"
  mount_lfs -u /dev/dk5 /testlfs
  {
    cd /testlfs
    dd if=/dev/zero of=testfile.bin bs=1m count=1
    sync
    rm testfile.bin
    cd ..
  }
  if umount /testlfs; then
    echo "===> GOOD umount"
  else
    echo "===> BAD umount"
    exit 1
  fi
  if fsck_lfs -nf /dev/rdk5; then
    echo "===> GOOD fsck_lfs"
  else
    echo "===> BAD fsck_lfs"
    exit 1
  fi
done

>Fix:
unknown.