7.0-PRE/amd64 crash with Promise TX4 and eSATA disk

[Kostik Belousov]

On Sun, Feb 03, 2008 at 12:05:44PM +0300, Dmitry Morozovsky wrote:
> On Sun, 3 Feb 2008, Kostik Belousov wrote:
> 
> KB> Di you have the UFS volume mounted from the eSATA drive ? If yes, then the
> KB> panic is the natural consequence of the device disappearing from under the
> KB> UFS. If not, and fault address 0x3020e0b30 looks suspicious, it could mean
> KB> some kernel memory corruption.
> 
> yes, there is (were) UFS2 on eSATA.
> 
> KB> Anyway,  it would  be interesting to look at the vnode vp content from the
> KB> frame #10, and to  lookup the mount point together with  a device it comes
> KB> from.
> 
> (kgdb) fr 10
> #10 0xffffffff8029dcf3 in vn_stat (vp=0xffffff004728b9b0, 
> sb=0xffffffffd79f79f0, active_cred=Variable "active_cred" is not available.
> ) at vnode_if.h:286
> 286     vnode_if.h: No such file or directory.
>         in vnode_if.h
> (kgdb) p vp
> $1 = (struct vnode *) 0xffffff004728b9b0
> (kgdb) p *vp
> $2 = {v_type = VDIR, v_tag = 0xffffffff8039319c "ufs", v_op = 
> 0xffffffff804e98e0, v_data = 0xffffff003fab0480, v_mount = 0xffffff00050dc650, 
The *v_mount and *(struct ufs_mount *)(v_mount->mnt_data) content shall
be enough to confirm that vnode comes from the lost partition.

> v_nmntvnodes = {
>     tqe_next = 0xffffff004728bba0, tqe_prev = 0xffffff004728f218}, v_un = 
> {vu_mount = 0x0, vu_socket = 0x0, vu_cdev = 0x0, vu_fifoinfo = 0x0}, v_hashlist 
> = {le_next = 0x0, 
>     le_prev = 0xffffffff808c10e0}, v_hash = 215211, v_cache_src = {lh_first = 
> 0xffffff003f4d5000}, v_cache_dst = {tqh_first = 0xffffff0026fcca90, tqh_last = 
> 0xffffff0026fccab0}, 
>   v_dd = 0xffffff00470a49b0, v_cstart = 0, v_lasta = 0, v_lastw = 0, v_clen = 
> 0, v_lock = {lk_object = {lo_name = 0xffffffff8039319c "ufs", lo_type = 
> 0xffffffff8039319c "ufs", 
>       lo_flags = 70844416, lo_witness_data = {lod_list = {stqe_next = 0x0}, 
> lod_witness = 0x0}}, lk_interlock = 0xffffffff80514730, lk_flags = 262208, 
> lk_sharecount = 0, 
>     lk_waitcount = 0, lk_exclusivecount = 1, lk_prio = 80, lk_timo = 51, 
> lk_lockholder = 0xffffff000179c340, lk_newlock = 0x0}, v_interlock = 
> {lock_object = {
>       lo_name = 0xffffffff8039e4da "vnode interlock", lo_type = 
> 0xffffffff8039e4da "vnode interlock", lo_flags = 16973824, lo_witness_data = 
> {lod_list = {stqe_next = 0x0}, 
>         lod_witness = 0x0}}, mtx_lock = 4, mtx_recurse = 0}, v_vnlock = 
> 0xffffff004728ba48, v_holdcnt = 3, v_usecount = 2, v_iflag = 0, v_vflag = 0, 
> v_writecount = 0, 
>   v_freelist = {tqe_next = 0x0, tqe_prev = 0xffffff004728b900}, v_bufobj = 
> {bo_mtx = 0xffffff004728ba98, bo_clean = {bv_hd = {tqh_first = 0x0, tqh_last = 
> 0xffffff004728bb08}, 
>       bv_root = 0x0, bv_cnt = 0}, bo_dirty = {bv_hd = {tqh_first = 0x0, 
> tqh_last = 0xffffff004728bb28}, bv_root = 0x0, bv_cnt = 0}, bo_numoutput = 0, 
> bo_flag = 0, 
>     bo_ops = 0xffffffff804dd3e0, bo_bsize = 65536, bo_object = 
> 0xffffff0047994680, bo_synclist = {le_next = 0x0, le_prev = 0x0}, bo_private = 
> 0xffffff004728b9b0, 
>     __bo_vnode = 0xffffff004728b9b0}, v_pollinfo = 0x0, v_label = 0x0}
> 
> 
> I think tere are at least two problems here:
> - panic when non-essential UFS mounted partition disappears
Unfortunately, FreeBSD has no concept of the unessential mount; I wish
the mount option onerror=nopanic too :).

> - particular disappearing eSATA drive from eSATA channel of TX4. Relevant error 
> messages are
This looks more like the hardware problem, and it only induced the known
kernel deficiency.

> 
> Feb  2 19:29:18 <kern.crit> hamster kernel: ata7: reiniting channel ..
> Feb  2 19:29:18 <kern.crit> hamster kernel: ata7: SATA connect time=0ms
> Feb  2 19:29:18 <kern.crit> hamster kernel: ata7: reset tp1 mask=01 ostat0=d0 
> ostat1=00
> Feb  2 19:29:18 <kern.crit> hamster kernel: ata7: stat0=0xd0 err=0x00 lsb=0x36 
> msb=0x72
> Feb  2 19:29:26 <kern.crit> hamster last message repeated 87 times
> Feb  2 19:29:27 <kern.crit> hamster kernel: 
> Feb  2 19:29:27 <kern.crit> hamster kernel: ata7: stat0=0xd0 err=0x00 lsb=0x36 
> msb=0x72
> Feb  2 19:29:49 <kern.crit> hamster last message repeated 221 times
> Feb  2 19:29:49 <kern.crit> hamster kernel: ata7: reset tp2 stat0=d0 stat1=00 
> devices=0x0
> Feb  2 19:29:49 <kern.crit> hamster kernel: ad14: FAILURE - device detached
> Feb  2 19:29:49 <kern.crit> hamster kernel: ad1g4_:v fdse_tdaocnhee(d):
> Feb  2 19:29:49 <kern.crit> hamster kernel: ad14a[aRtEaA7D:( orfefisneitt= 
> d1o2n4e0 9.1.43
> Feb  2 19:29:49 <kern.crit> hamster kernel: 2960, length=131072)]error = 6
> Feb  2 19:29:49 <kern.crit> hamster kernel: 
> g_vfs_done():ad14a[READ(offset=124091564032, length=131072)]error = 6
> Feb  2 19:29:49 <kern.crit> hamster kernel: 
> g_vfs_done():ad14a[READ(offset=124091695104, length=131072)]error = 6
> 
> ... and zillion of g_vfs_gone after.
> 
> Sincerely,
> D.Marck                                     [DM5020, MCK-RIPE, DM3-RIPN]
> [ FreeBSD committer:                                 marck at FreeBSD.org ]
> ------------------------------------------------------------------------
> *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck at rinet.ru ***
> ------------------------------------------------------------------------
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