Re: ffs_clusteralloc: allocated out of group on 5TB fs (5.3-Stable)

> Very large FFS filesystems have not been extensively tested. Maybe you can
> help :)
>
> You should be able to compile GENERIC with
>
> makeoptions "DEBUG=-g"
>
> in the config file and that will leave a kernel.debug in the compile
> directory that you can use.
>
> Once you get that loaded up the output of 'bt full' would be nice to have.

Let me know if you want anything else...

(kgdb) bt full
#0  doadump () at pcpu.h:159
No locals.
#1  0xc060d47b in boot (howto=0x104) at 
/usr/src/sys/kern/kern_shutdown.c:397
        first_buf_printf = 0x1
#2  0xc060d7a1 in panic (fmt=0xc082c448 "ffs_clusteralloc: allocated out of 
group")
    at /usr/src/sys/kern/kern_shutdown.c:553
        td = (struct thread *) 0xc39b7320
        bootopt = 0x104
        newpanic = 0x0
        ap = 0xc39b7320 "Ôh\233ÃÀ\201\233Ã"
        buf = "ffs_clusteralloc: allocated out of group", '\0' <repeats 215 
times>
#3  0xc0734456 in ffs_clusteralloc (ip=0xc3b5808c, cg=0x5928, bpref=0x1, 
len=0x5)
    at /usr/src/sys/ufs/ffs/ffs_alloc.c:1526
        fs = (struct fs *) 0xc372f000
        cgp = (struct cg *) 0xdae55000
        bp = (struct buf *) 0xd76807c8
        i = 0x0
        run = 0x5
        bit = 0x0
        map = 0x0
        got = 0xc372f000
        bno = 0xffffffff80000020
        mapp = (u_char *) 0xffffffff ""
        lp = (int32_t *) 0x0
        blksfree = (u_int8_t *) 0xdae55c28 "ÿ"
#4  0xc0733678 in ffs_hashalloc (ip=0xc3b5808c, cg=0x5928, pref=0x7fffb548, 
size=0x5,
    allocator=0xc07340f0 <ffs_clusteralloc+4>) at 
/usr/src/sys/ufs/ffs/ffs_alloc.c:1159
        fs = (struct fs *) 0xc372f000
        result = Unhandled dwarf expression opcode 0x93
(kgdb) print *cgp
$4 = {
  cg_firstfield = 0x0,
  cg_magic = 0x90255,
  cg_old_time = 0x41b59fe4,
  cg_cgx = 0x5928,
  cg_old_ncyl = 0x0,
  cg_old_niblk = 0x0,
  cg_ndblk = 0x16f88,
  cg_cs = {
    cs_ndir = 0x0,
    cs_nbfree = 0x2496,
    cs_nifree = 0x5c00,
    cs_nffree = 0x0
  },
  cg_rotor = 0x4ad8,
  cg_frotor = 0x4ad8,
  cg_irotor = 0x0,
  cg_frsum = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
  cg_old_btotoff = 0x0,
  cg_old_boff = 0x0,
  cg_iusedoff = 0xa8,
  cg_freeoff = 0xc28,
  cg_nextfreeoff = 0x3ffb,
  cg_clustersumoff = 0x3a18,
  cg_clusteroff = 0x3a3c,
  cg_nclusterblks = 0x2df1,
  cg_niblk = 0x5c00,
  cg_initediblk = 0x80,
  cg_sparecon32 = {0x0, 0x0, 0x0},
  cg_time = 0x41b59fe4,
  cg_sparecon64 = {0x0, 0x0, 0x0},
  cg_space = ""
}
(kgdb) print *bp
$5 = {
  b_io = {
    bio_cmd = 0x1,
    bio_flags = 0x2,
    bio_cflags = 0x0,
    bio_pflags = 0x0,
    bio_dev = 0xc3977900,
    bio_disk = 0x0,
    bio_offset = 0x3fffdab8000,
    bio_bcount = 0x4000,
    bio_data = 0xdae55000 "",
    bio_error = 0x0,
    bio_resid = 0x0,
    bio_done = 0xc0653cdc <bufdonebio>,
    bio_driver1 = 0x0,
    bio_driver2 = 0x0,
    bio_caller1 = 0x0,
    bio_caller2 = 0xd76807c8,
    bio_queue = {
      tqe_next = 0x0,
      tqe_prev = 0x0
    },
    bio_attribute = 0x0,
    bio_from = 0x0,
    bio_to = 0x0,
    bio_length = 0x0,
    bio_completed = 0x0,
    bio_children = 0x7d,
    bio_inbed = 0x0,
    bio_parent = 0x0,
    bio_t0 = {
      sec = 0x0,
      frac = 0x0
    },
    bio_task = 0,
    bio_task_arg = 0x0,
    bio_pblkno = 0x0
  },
  b_op = 0xc0878bc8,
  b_magic = 0x10b10b10,
  b_iodone = 0,
  b_blkno = 0x1fffed5c0,
  b_offset = 0x3fffdab8000,
  b_vnbufs = {
    tqe_next = 0x0,
    tqe_prev = 0xd752f4e8
  },
  b_left = 0xd752f448,
  b_right = 0x0,
  b_vflags = 0x0,
  b_freelist = {
    tqe_next = 0xd768097c,
    tqe_prev = 0xc08dd048
  },
  b_qindex = 0x0,
  b_flags = 0x20000220,
  b_xflags = 0x12,
  b_lock = {
    lk_interlock = 0xc08d5bf8,
    lk_flags = 0x400,
    lk_sharecount = 0x0,
    lk_waitcount = 0x0,
    lk_exclusivecount = 0x1,
    lk_prio = 0x50,
    lk_wmesg = 0xc0820fb6 "bufwait",
    lk_timo = 0x0,
    lk_lockholder = 0xc39b7320,
    lk_newlock = 0x0
  },
  b_bufsize = 0x4000,
  b_runningbufspace = 0x0,
  b_kvabase = 0xdae55000 "",
  b_kvasize = 0x4000,
  b_lblkno = 0x1fffed5c0,
  b_vp = 0xc39e5738,
  b_object = 0xc39eb948,
  b_dirtyoff = 0x0,
  b_dirtyend = 0x0,
  b_rcred = 0x0,
  b_wcred = 0x0,
  b_saveaddr = 0xdae55000,
  b_pager = {
    pg_reqpage = 0x0
  },
  b_cluster = {
    cluster_head = {
      tqh_first = 0x0,
      tqh_last = 0x0
    },
    cluster_entry = {
      tqe_next = 0x0,
      tqe_prev = 0x0
    }
  },
  b_pages = {0xc2f21a90, 0xc2f0fad8, 0xc2f7a020, 0xc2f62668, 0x0 <repeats 28 
times>},
  b_npages = 0x4,
  b_dep = {
    lh_first = 0x0
  }
}
(kgdb)