On 10/27/2009 08:19 AM, Albert Pauw wrote:
Ok,
here is the idea:
- I always used a script (vtl, attached) to set up a 3-drive virtual
tape library, logged in using open-iscsi and he presto. That works.
One of the ways of testing it is using the mtx command to view the
contents of the slots and drives.
- Now I wanted to convert it to a targets.conf file, so it can be used
automatically at start up of tgt. So I did created a file
(targets.conf, attached).
Starting that up automatically works, login into the target also
works, I can see the devices using lsscsi. Asking the status of the
separate drives works also
(mt -f /dev/nst0 status, etc). However, the mtx command hangs, in fact
the whole tgtd daemon seems to hang as after some time the iscsid (the
initiator)
daemon starts to send login requests, but gets no answer. I've added
the two wireshark traces as well.
Here's the actions you could find in the traces:
-> login target
mt -f /dev/nst0
mt -f /dev/nst1
mt -f /dev/nst2
mtx -f /dev/changer status
-> logout target (only when done manually, automatically this is not
possible)
Just tried running tgtd in the foreground (tgtd -f -d8) and see what
happens after logging in the target and running the mtx -f /dev/changer
status command.
This is what I get (i.e. tgtd died):
tgtd: iscsi_scsi_cmd_rx_start(1567) 1 1a 0 0 12 1 10000035
tgtd: iscsi_task_queue(1512) 2e 2e 1
tgtd: target_cmd_queue(827) 0x9c60390 1a 2
tgtd: target_cmd_queue(846) 0x9c60390 1a 2 1
tgtd: target_cmd_queue(857) 10000035 1a (nil) 0x9c61000 0 0 12 0 0
tgtd: iscsi_scsi_cmd_done(1185) shrunk too big device read len 14 > 12
tgtd: iscsi_task_tx_start(1858) found a task 10000035 12 0 0
tgtd: iscsi_data_rsp_build(1050) 12 12 12 819210000035
tgtd: __cmd_done(918) 0 (nil) 0x9c61000 0 12 0
tgtd: iscsi_task_tx_start(1883) no more data
tgtd: iscsi_noop_out_rx_start(1605) ffffffff 10000036 0
tgtd: iscsi_task_queue(1512) 2f 2f 40
tgtd: iscsi_task_tx_start(1858) found a task 0 4294967295 0 0
tgtd: iscsi_task_tx_start(1883) no more data
tgtd: iscsi_noop_out_rx_start(1605) ffffffff 10000037 0
tgtd: iscsi_task_queue(1512) 2f 2f 40
tgtd: iscsi_task_tx_start(1858) found a task 0 4294967295 0 0
tgtd: iscsi_task_tx_start(1883) no more data
tgtd: iscsi_noop_out_rx_start(1605) ffffffff 10000038 0
tgtd: iscsi_task_queue(1512) 2f 2f 40
tgtd: iscsi_task_tx_start(1858) found a task 0 4294967295 0 0
tgtd: iscsi_task_tx_start(1883) no more data
tgtd: iscsi_noop_out_rx_start(1605) ffffffff 10000039 0
tgtd: iscsi_task_queue(1512) 2f 2f 40
tgtd: iscsi_task_tx_start(1858) found a task 0 4294967295 0 0
tgtd: iscsi_task_tx_start(1883) no more data
tgtd: iscsi_scsi_cmd_rx_start(1567) 1 12 0 0 56 1 1000003a
tgtd: iscsi_task_queue(1512) 2f 2f 1
tgtd: target_cmd_queue(827) 0x9c60390 12 4
tgtd: target_cmd_queue(846) 0x9c60390 12 4 1
tgtd: spc_inquiry(164) 0 0
tgtd: target_cmd_queue(857) 1000003a 12 (nil) 0x9c61000 0 0 56 0 0
tgtd: iscsi_scsi_cmd_done(1185) shrunk too big device read len 66 > 56
tgtd: iscsi_task_tx_start(1858) found a task 1000003a 56 0 0
tgtd: iscsi_data_rsp_build(1050) 56 56 56 81921000003a
tgtd: __cmd_done(918) 0 (nil) 0x9c61000 0 56 0
tgtd: iscsi_task_tx_start(1883) no more data
tgtd: iscsi_scsi_cmd_rx_start(1567) 1 1a 0 0 136 1 1000003b
tgtd: iscsi_task_queue(1512) 30 30 1
tgtd: target_cmd_queue(827) 0x9c60390 1a 4
tgtd: target_cmd_queue(846) 0x9c60390 1a 4 1
tgtd: target_cmd_queue(857) 1000003b 1a (nil) 0x9c61000 0 0 136 0 0
tgtd: iscsi_task_tx_start(1858) found a task 1000003b 136 0 0
tgtd: iscsi_data_rsp_build(1050) 24 136 24 81921000003b
tgtd: __cmd_done(918) 0 (nil) 0x9c61000 0 136 0
tgtd: iscsi_task_tx_start(1883) no more data
tgtd: iscsi_scsi_cmd_rx_start(1567) 1 b8 0 0 40 1 1000003c
tgtd: iscsi_task_queue(1512) 31 31 1
tgtd: target_cmd_queue(827) 0x9c60390 b8 4
tgtd: target_cmd_queue(846) 0x9c60390 b8 4 1
*** glibc detected *** tgtd: free(): invalid next size (fast):
0x09c554d0 ***
======= Backtrace: =========
/lib/libc.so.6[0xaf92a1]
tgtd[0x8062342]
tgtd[0x805b857]
tgtd[0x805a675]
tgtd[0x804c0f8]
tgtd[0x804c3ea]
tgtd[0x804edd7]
tgtd[0x8052038]
tgtd[0x8055156]
tgtd[0x8055694]
/lib/libc.so.6(__libc_start_main+0xe6)[0xa9fa66]
tgtd[0x804a051]
======= Memory map: ========
0088a000-008b4000 r-xp 00000000 fd:00 14112
/lib/libgcc_s-4.4.1-20090729.so.1
008b4000-008b5000 rw-p 00029000 fd:00 14112
/lib/libgcc_s-4.4.1-20090729.so.1
008e2000-00a33000 r-xp 00000000 fd:00 182494
/usr/lib/libcrypto.so.0.9.8k
00a33000-00a49000 rw-p 00150000 fd:00 182494
/usr/lib/libcrypto.so.0.9.8k
00a49000-00a4d000 rw-p 00000000 00:00 0
00a65000-00a85000 r-xp 00000000 fd:00 189414 /lib/ld-2.10.1.so
00a85000-00a86000 r--p 0001f000 fd:00 189414 /lib/ld-2.10.1.so
00a86000-00a87000 rw-p 00020000 fd:00 189414 /lib/ld-2.10.1.so
00a89000-00bf4000 r-xp 00000000 fd:00 182397 /lib/libc-2.10.1.so
00bf4000-00bf6000 r--p 0016b000 fd:00 182397 /lib/libc-2.10.1.so
00bf6000-00bf7000 rw-p 0016d000 fd:00 182397 /lib/libc-2.10.1.so
00bf7000-00bfa000 rw-p 00000000 00:00 0
00c26000-00c29000 r-xp 00000000 fd:00 182449 /lib/libdl-2.10.1.so
00c29000-00c2a000 r--p 00002000 fd:00 182449 /lib/libdl-2.10.1.so
00c2a000-00c2b000 rw-p 00003000 fd:00 182449 /lib/libdl-2.10.1.so
00c2d000-00c43000 r-xp 00000000 fd:00 182438 /lib/libpthread-2.10.1.so
00c43000-00c44000 ---p 00016000 fd:00 182438 /lib/libpthread-2.10.1.so
00c44000-00c45000 r--p 00016000 fd:00 182438 /lib/libpthread-2.10.1.so
00c45000-00c46000 rw-p 00017000 fd:00 182438 /lib/libpthread-2.10.1.so
00c46000-00c48000 rw-p 00000000 00:00 0
00c4a000-00c5c000 r-xp 00000000 fd:00 182445 /lib/libz.so.1.2.3
00c5c000-00c5d000 rw-p 00011000 fd:00 182445 /lib/libz.so.1.2.3
00f2b000-00f2c000 r-xp 00000000 00:00 0 [vdso]
08047000-08070000 r-xp 00000000 fd:00 20367 /sbin/tgtd
08070000-08074000 rw-p 00029000 fd:00 20367 /sbin/tgtd
08074000-08075000 rw-p 00000000 00:00 0
09c55000-09c76000 rw-p 00000000 00:00 0 [heap]
adf9a000-adf9b000 ---p 00000000 00:00 0
adf9b000-ae99b000 rw-p 00000000 00:00 0
ae99b000-ae99c000 ---p 00000000 00:00 0
ae99c000-af39c000 rw-p 00000000 00:00 0
af39c000-af39d000 ---p 00000000 00:00 0
af39d000-afd9d000 rw-p 00000000 00:00 0
afd9d000-afd9e000 ---p 00000000 00:00 0
afd9e000-b079e000 rw-p 00000000 00:00 0
b079e000-b079f000 ---p 00000000 00:00 0
b079f000-b119f000 rw-p 00000000 00:00 0
b119f000-b11a0000 ---p 00000000 00:00 0
b11a0000-b1ba0000 rw-p 00000000 00:00 0
b1ba0000-b1ba1000 ---p 00000000 00:00 0
b1ba1000-b25a1000 rw-p 00000000 00:00 0
b25a1000-b25a2000 ---p 00000000 00:00 0
b25a2000-b2fa2000 rw-p 00000000 00:00 0
b2fa2000-bAborted
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