Hello!
I have exactly the same problem. The Server hangs on iscsiadm logouts. My ISCSI Target ist a HP P4500
Here is my stack trace:
[ 2360.832232] sd 3:0:0:0: [sdb] 20971520 512-byte logical blocks: (10.7 GB/10.0 GiB) [ 2360.833438] sd 3:0:0:0: [sdb] Write Protect is off [ 2360.833445] sd 3:0:0:0: [sdb] Mode Sense: 77 00 00 08 [ 2360.834112] sd 3:0:0:0: [sdb] Write cache: disabled, read cache: disabled, doesn't support DPO or FUA [ 2360.850500] sdb: sdb1 sdb2 < sdb5 > [ 2360.852989] sd 3:0:0:0: [sdb] Attached SCSI disk [ 2403.635452] BUG: soft lockup - CPU#6 stuck for 22s! [kworker/u:0:5] [ 2403.635805] Modules linked in: ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi usbhid hid veth ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables openvswitch_mod(O) bridge stp kvm_intel kvm nbd vesafb bonding dm_multipath psmouse serio_raw sb_edac edac_core hpilo ioatdma dca acpi_power_meter mac_hid lp parport hpsa tg3 [last unloaded: scsi_transport_iscsi] [ 2403.635841] CPU 6 [ 2403.635842] Modules linked in: ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi usbhid hid veth ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables openvswitch_mod(O) bridge stp kvm_intel kvm nbd vesafb bonding dm_multipath psmouse serio_raw sb_edac edac_core hpilo ioatdma dca acpi_power_meter mac_hid lp parport hpsa tg3 [last unloaded: scsi_transport_iscsi] [ 2403.635864] [ 2403.635866] Pid: 5, comm: kworker/u:0 Tainted: G W O 3.2.0-31-generic #50-Ubuntu HP ProLiant DL360p Gen8 [ 2403.635869] RIP: 0010:[<ffffffff8165a70f>] [<ffffffff8165a70f>] _raw_spin_unlock_irqrestore+0x1f/0x30 [ 2403.635878] RSP: 0018:ffff88080c0e5da0 EFLAGS: 00000286 [ 2403.635880] RAX: 0000000000000286 RBX: 0000000000000286 RCX: 0000000000000001 [ 2403.635881] RDX: ffff880fffbc3c08 RSI: 0000000000000286 RDI: 0000000000000286 [ 2403.635883] RBP: ffff88080c0e5da0 R08: ffffffff81cddaa0 R09: 0000000000000100 [ 2403.635884] R10: 0000000000000040 R11: 0000000000000000 R12: 0000000000000001 [ 2403.635885] R13: 0000000000000001 R14: ffffffff81cddaa0 R15: 0000000000000100 [ 2403.635887] FS: 0000000000000000(0000) GS:ffff88101f200000(0000) knlGS:0000000000000000 [ 2403.635889] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 2403.635890] CR2: 00007f43c5c87cd0 CR3: 0000000001c05000 CR4: 00000000000426e0 [ 2403.635892] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2403.635894] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 2403.635896] Process kworker/u:0 (pid: 5, threadinfo ffff88080c0e4000, task ffff88080c0c5c00) [ 2403.635897] Stack: [ 2403.635992] ffff88080c0e5dd0 ffffffff8142f3b4 ffff881001bff130 ffff881001bff000 [ 2403.635996] ffff881001bff018 0000000000000000 ffff88080c0e5e00 ffffffffa0106fec [ 2403.635999] ffff881001bff080 ffff88080c0a1100 ffff880fffd8ae00 ffffffff81e534c0 [ 2403.636003] Call Trace: [ 2403.636128] [<ffffffff8142f3b4>] scsi_remove_target+0xb4/0xe0 [ 2403.636136] [<ffffffffa0106fec>] __iscsi_unbind_session+0xbc/0x190 [scsi_transport_iscsi] [ 2403.636144] [<ffffffff81084a6a>] process_one_work+0x11a/0x480 [ 2403.636148] [<ffffffff81085814>] worker_thread+0x164/0x370 [ 2403.636151] [<ffffffff810856b0>] ? manage_workers.isra.30+0x130/0x130 [ 2403.636154] [<ffffffff8108a03c>] kthread+0x8c/0xa0 [ 2403.636159] [<ffffffff81664c74>] kernel_thread_helper+0x4/0x10 [ 2403.636162] [<ffffffff81089fb0>] ? flush_kthread_worker+0xa0/0xa0 [ 2403.636164] [<ffffffff81664c70>] ? gs_change+0x13/0x13 [ 2403.636165] Code: 65 f8 c9 c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 66 66 66 66 90 48 89 f3 e8 9e 35 9e ff 66 90 48 89 df 57 9d 66 66 90 66 90 5b <5d> c3 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 [ 2403.637472] Call Trace: [ 2403.637474] [<ffffffff8142f3b4>] scsi_remove_target+0xb4/0xe0 [ 2403.637485] [<ffffffffa0106fec>] __iscsi_unbind_session+0xbc/0x190 [scsi_transport_iscsi] [ 2403.637491] [<ffffffff81084a6a>] process_one_work+0x11a/0x480 [ 2403.637494] [<ffffffff81085814>] worker_thread+0x164/0x370 [ 2403.637496] [<ffffffff810856b0>] ? manage_workers.isra.30+0x130/0x130 [ 2403.637499] [<ffffffff8108a03c>] kthread+0x8c/0xa0 [ 2403.637501] [<ffffffff81664c74>] kernel_thread_helper+0x4/0x10 [ 2403.637504] [<ffffffff81089fb0>] ? flush_kthread_worker+0xa0/0xa0 [ 2403.637506] [<ffffffff81664c70>] ? gs_change+0x13/0x13
as reported the problem does not exist with kernel -29.
Thank you!
Hello!
I have exactly the same problem.
The Server hangs on iscsiadm logouts.
My ISCSI Target ist a HP P4500
Here is my stack trace:
[ 2360.832232] sd 3:0:0:0: [sdb] 20971520 512-byte logical blocks: (10.7 GB/10.0 GiB) iscsi usbhid hid veth ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables openvswitch_mod(O) bridge stp kvm_intel kvm nbd vesafb bonding dm_multipath psmouse serio_raw sb_edac edac_core hpilo ioatdma dca acpi_power_meter mac_hid lp parport hpsa tg3 [last unloaded: scsi_transport_ iscsi] iscsi usbhid hid veth ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables openvswitch_mod(O) bridge stp kvm_intel kvm nbd vesafb bonding dm_multipath psmouse serio_raw sb_edac edac_core hpilo ioatdma dca acpi_power_meter mac_hid lp parport hpsa tg3 [last unloaded: scsi_transport_ iscsi] ffffffff8165a70 f>] [<ffffffff8165a 70f>] _raw_spin_ unlock_ irqrestore+ 0x1f/0x30 0e5da0 EFLAGS: 00000286 0(0000) GS:ffff88101f20 0000(0000) knlGS:000000000 0000000 3b4>] scsi_remove_ target+ 0xb4/0xe0 fec>] __iscsi_ unbind_ session+ 0xbc/0x190 [scsi_transport _iscsi] a6a>] process_ one_work+ 0x11a/0x480 814>] worker_ thread+ 0x164/0x370 6b0>] ? manage_ workers. isra.30+ 0x130/0x130 03c>] kthread+0x8c/0xa0 c74>] kernel_ thread_ helper+ 0x4/0x10 fb0>] ? flush_kthread_ worker+ 0xa0/0xa0 c70>] ? gs_change+0x13/0x13 3b4>] scsi_remove_ target+ 0xb4/0xe0 fec>] __iscsi_ unbind_ session+ 0xbc/0x190 [scsi_transport _iscsi] a6a>] process_ one_work+ 0x11a/0x480 814>] worker_ thread+ 0x164/0x370 6b0>] ? manage_ workers. isra.30+ 0x130/0x130 03c>] kthread+0x8c/0xa0 c74>] kernel_ thread_ helper+ 0x4/0x10 fb0>] ? flush_kthread_ worker+ 0xa0/0xa0 c70>] ? gs_change+0x13/0x13
[ 2360.833438] sd 3:0:0:0: [sdb] Write Protect is off
[ 2360.833445] sd 3:0:0:0: [sdb] Mode Sense: 77 00 00 08
[ 2360.834112] sd 3:0:0:0: [sdb] Write cache: disabled, read cache: disabled, doesn't support DPO or FUA
[ 2360.850500] sdb: sdb1 sdb2 < sdb5 >
[ 2360.852989] sd 3:0:0:0: [sdb] Attached SCSI disk
[ 2403.635452] BUG: soft lockup - CPU#6 stuck for 22s! [kworker/u:0:5]
[ 2403.635805] Modules linked in: ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_
[ 2403.635841] CPU 6
[ 2403.635842] Modules linked in: ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_
[ 2403.635864]
[ 2403.635866] Pid: 5, comm: kworker/u:0 Tainted: G W O 3.2.0-31-generic #50-Ubuntu HP ProLiant DL360p Gen8
[ 2403.635869] RIP: 0010:[<
[ 2403.635878] RSP: 0018:ffff88080c
[ 2403.635880] RAX: 0000000000000286 RBX: 0000000000000286 RCX: 0000000000000001
[ 2403.635881] RDX: ffff880fffbc3c08 RSI: 0000000000000286 RDI: 0000000000000286
[ 2403.635883] RBP: ffff88080c0e5da0 R08: ffffffff81cddaa0 R09: 0000000000000100
[ 2403.635884] R10: 0000000000000040 R11: 0000000000000000 R12: 0000000000000001
[ 2403.635885] R13: 0000000000000001 R14: ffffffff81cddaa0 R15: 0000000000000100
[ 2403.635887] FS: 000000000000000
[ 2403.635889] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 2403.635890] CR2: 00007f43c5c87cd0 CR3: 0000000001c05000 CR4: 00000000000426e0
[ 2403.635892] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2403.635894] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 2403.635896] Process kworker/u:0 (pid: 5, threadinfo ffff88080c0e4000, task ffff88080c0c5c00)
[ 2403.635897] Stack:
[ 2403.635992] ffff88080c0e5dd0 ffffffff8142f3b4 ffff881001bff130 ffff881001bff000
[ 2403.635996] ffff881001bff018 0000000000000000 ffff88080c0e5e00 ffffffffa0106fec
[ 2403.635999] ffff881001bff080 ffff88080c0a1100 ffff880fffd8ae00 ffffffff81e534c0
[ 2403.636003] Call Trace:
[ 2403.636128] [<ffffffff8142f
[ 2403.636136] [<ffffffffa0106
[ 2403.636144] [<ffffffff81084
[ 2403.636148] [<ffffffff81085
[ 2403.636151] [<ffffffff81085
[ 2403.636154] [<ffffffff8108a
[ 2403.636159] [<ffffffff81664
[ 2403.636162] [<ffffffff81089
[ 2403.636164] [<ffffffff81664
[ 2403.636165] Code: 65 f8 c9 c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 66 66 66 66 90 48 89 f3 e8 9e 35 9e ff 66 90 48 89 df 57 9d 66 66 90 66 90 5b <5d> c3 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5
[ 2403.637472] Call Trace:
[ 2403.637474] [<ffffffff8142f
[ 2403.637485] [<ffffffffa0106
[ 2403.637491] [<ffffffff81084
[ 2403.637494] [<ffffffff81085
[ 2403.637496] [<ffffffff81085
[ 2403.637499] [<ffffffff8108a
[ 2403.637501] [<ffffffff81664
[ 2403.637504] [<ffffffff81089
[ 2403.637506] [<ffffffff81664
as reported the problem does not exist with kernel -29.
Thank you!