John,

thanks for your answer.
The only lines I find in dmesg for the tape are:

st: Version 20070203, fixed bufsize 32768, s/g segs 256
st 4:0:0:0: Attached scsi tape st0
st0: try direct i/o: yes (alignment 512 B)
st0: Block limits 1 - 16777215 bytes.

which seem to be the ones that correspond to the detection of the
device.

Then I find other regarding mt (don't know if it's when I used the mt
command to erase a tape or if bacula uses mt somehow):

INFO: task mt:18856 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
mt            D 00028d19f10bb5e1     0 18856   6491
(NOTLB)
 ffff880062cb5cd8  0000000000000286  0000000000000001  ffff88006a9965b8 
 0000000000000007  ffff880035354100  ffffffff804fcb00  000000000000877c 
 ffff8800353542e8  ffff88006a9965b8 
Call Trace:
 [<ffffffff80262fab>] wait_for_completion+0x7d/0xaa
 [<ffffffff8028a024>] default_wake_function+0x0/0xe
 [<ffffffff88384e23>] :st:st_do_scsi+0x1f4/0x221
 [<ffffffff8838592a>] :st:st_int_ioctl+0x5ea/0x923
 [<ffffffff802092a7>] __handle_mm_fault+0x85d/0x1445
 [<ffffffff88387a50>] :st:st_ioctl+0xaa5/0xe1f
 [<ffffffff80267d8b>] do_page_fault+0xfae/0x1324
 [<ffffffff8024425c>] do_ioctl+0x55/0x6b
 [<ffffffff8023188a>] vfs_ioctl+0x457/0x4b9
 [<ffffffff802b19db>] audit_syscall_entry+0x1a4/0x1cf
 [<ffffffff8024e7e2>] sys_ioctl+0x59/0x78
 [<ffffffff802602f9>] tracesys+0xab/0xb6

Regards,

Juan Pablo







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