[issue1418] HAMMER and problem with external drive(s)

New submission from Joel K. Pettersson <[e-mail]>:

Problems beginning some time after mount on line beginning with "(da8". Thi=
s is
a new version 2 hammer partition made and used on freshly updated system on
ThinkPad X31 laptop. Same kind of error and messages have appeared with a
different external drive (older hammer partition, older installation) on a
different DragonFly install as well, as well as when trying to use its even
older installation CD (which was an old 09-02-06 snapshot) live as well as
trying to install with HAMMER on said different external drive (for later m=
anual
adjustment and use in laptop).

No such problem with other filesystems, no problem (ever) with HAMMER on
non-external drives.

For log below (until a first incident), these messages with which the probl=
em
begins keep repeating if trying further use. Unmounting and re-mounting giv=
es
some time (though much data written during previous mount lost) before it
happens again in the same way.

Everything works until the
"(da8:umass-sim0:0:0:0): SYNCHRONIZE CACHE(10). CDB: 35 0 0 0 0 0 0 0 0 0=20
(da8:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da8:umass-sim0:0:0:0): SCSI Status: Check Condition
(da8:umass-sim0:0:0:0): ILLEGAL REQUEST asc:20,0
(da8:umass-sim0:0:0:0): Invalid command operation code
(da8:umass-sim0:0:0:0): Unretryable error"

starts repeating, followed by

"HAMMER(): Critical error inode=3D-1 while flushing meta-data"

and

"HAMMER(): Forcing read-only mode"
..



Console log for fluffc.localhost
umass0: <Generic USB Storage Device, class 0/0, rev 2.00/0.00, addr 2> on u=
hub3
umass0: Get Max Lun not supported (TIMEOUT)
da8 at umass-sim0 bus 0 target 0 lun 0
da8: <WDC WD40 WD-WMAMY1717283 6A04> Fixed Direct Access SCSI-2 device=20
da8: 40.000MB/s transfers
da8: 381554MB (781422768 512 byte sectors: 255H 63S/T 48641C)
Jul  8 23:06:57 fluffc su: joel to root on /dev/ttyp1
(da8:umass-sim0:0:0:0): SYNCHRONIZE CACHE(10). CDB: 35 0 0 0 0 0 0 0 0 0=20
(da8:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da8:umass-sim0:0:0:0): SCSI Status: Check Condition
(da8:umass-sim0:0:0:0): ILLEGAL REQUEST asc:20,0
(da8:umass-sim0:0:0:0): Invalid command operation code
(da8:umass-sim0:0:0:0): Unretryable error
(da8:umass-sim0:0:0:0): SYNCHRONIZE CACHE(10). CDB: 35 0 0 0 0 0 0 0 0 0=20
(da8:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da8:umass-sim0:0:0:0): SCSI Status: Check Condition
(da8:umass-sim0:0:0:0): ILLEGAL REQUEST asc:20,0
(da8:umass-sim0:0:0:0): Invalid command operation code
(da8:umass-sim0:0:0:0): Unretryable error
(da8:umass-sim0:0:0:0): SYNCHRONIZE CACHE(10). CDB: 35 0 0 0 0 0 0 0 0 0=20
(da8:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da8:umass-sim0:0:0:0): SCSI Status: Check Condition
(da8:umass-sim0:0:0:0): ILLEGAL REQUEST asc:20,0
(da8:umass-sim0:0:0:0): Invalid command operation code
(da8:umass-sim0:0:0:0): Unretryable error
HAMMER(Ext_M-B_0): Critical error inode=3D-1 while flushing meta-data
HAMMER(Ext_M-B_0): Forcing read-only mode
HAMMER(Ext_M-B_0): Critical write error during flush, refusing to sync UNDO=
 FIFO

----------
messages: 6802
nosy: joelkp
status: unread
title: HAMMER and problem with external drive(s)

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<http://bugs.dragonflybsd.org/issue1418>
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