Problem with LIO

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I loose ISCSI target from a client. (iscsi with iser)
On the server side I get the following message if I issue dmesg command

Any idea how can I solve this problem ?

[13433.066229] INFO: task iscsi_trx:4434 blocked for more than 120 seconds.
[13433.069001] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[13433.071766] iscsi_trx       D ffff88083102f400     0  4434      2 0x00000084
[13433.071770]  ffff881054387bf0 0000000000000046 ffff880834d02280 ffff881054387fd8
[13433.071776]  ffff881054387fd8 ffff881054387fd8 ffff880834d02280 ffff880831295a30
[13433.071781]  ffff880831295a38 7fffffffffffffff ffff880834d02280 ffff88083102f400
[13433.071787] Call Trace:
[13433.071793]  [<ffffffff8163a909>] schedule+0x29/0x70
[13433.071798]  [<ffffffff816385f9>] schedule_timeout+0x209/0x2d0
[13433.071803]  [<ffffffff8163a909>] ? schedule+0x29/0x70
[13433.071807]  [<ffffffff816385f9>] ? schedule_timeout+0x209/0x2d0
[13433.071816]  [<ffffffff8163acd6>] wait_for_completion+0x116/0x170
[13433.071822]  [<ffffffff810b8c10>] ? wake_up_state+0x20/0x20
[13433.071850]  [<ffffffffa0680ce0>] target_wait_for_sess_cmds+0x60/0x150 [target_core_mod]
[13433.071857]  [<ffffffffa0771378>] isert_wait_conn+0x88/0x180 [ib_isert]
[13433.071869]  [<ffffffffa072cfbd>] iscsit_close_connection+0x15d/0x820 [iscsi_target_mod]
[13433.071878]  [<ffffffff8163b837>] ? wait_for_completion_interruptible+0x167/0x1d0
[13433.071889]  [<ffffffffa072bad0>] ? iscsi_target_tx_thread+0x200/0x200 [iscsi_target_mod]
[13433.071899]  [<ffffffffa071b183>] iscsit_take_action_for_connection_exit+0x83/0x110 [iscsi_target_mod]
[13433.071913]  [<ffffffffa072bcb7>] iscsi_target_rx_thread+0x1e7/0xf80 [iscsi_target_mod]
[13433.071924]  [<ffffffff81013588>] ? __switch_to+0xf8/0x4b0
[13433.071936]  [<ffffffffa072bad0>] ? iscsi_target_tx_thread+0x200/0x200 [iscsi_target_mod]
[13433.071942]  [<ffffffff810a5aef>] kthread+0xcf/0xe0
[13433.071948]  [<ffffffff810a5a20>] ? kthread_create_on_node+0x140/0x140
[13433.071956]  [<ffffffff81645858>] ret_from_fork+0x58/0x90
[13433.071975]  [<ffffffff810a5a20>] ? kthread_create_on_node+0x140/0x140

I’m using kernel version : 3.10.0-327.el7.x86_64
Centos 7 OS
targetcli version 2.1.fb41

After yum update the same occurs.

Thanks, and Best Regards,

	Laszlo

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