From: bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r@public.gmane.org
To: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [Bug 119561] New: IPoIB lock inversion complaint
Date: Thu, 02 Jun 2016 20:06:12 +0000 [thread overview]
Message-ID: <bug-119561-11804@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=119561
Bug ID: 119561
Summary: IPoIB lock inversion complaint
Product: Drivers
Version: 2.5
Kernel Version: 4.7.0-rc1
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Infiniband/RDMA
Assignee: drivers_infiniband-rdma-ztI5WcYan/vQLgFONoPN62D2FQJk+8+b@public.gmane.org
Reporter: bvanassche-HInyCGIudOg@public.gmane.org
Regression: No
The following complaint is reported sometimes when I boot a 4.7.0-rc1 kernel:
=========================================================
[ INFO: possible irq lock inversion dependency detected ]
4.7.0-rc1-dbg+ #1 Not tainted
---------------------------------------------------------
kworker/u64:8/138 just changed the state of lock:
(_xmit_INFINIBAND){+.+...}, at: [<ffffffffa02d360f>]
ipoib_dev_addr_changed_valid+0x5f/0x1b0 [ib_ipoib]
but this lock was taken by another, SOFTIRQ-safe lock in the past:
(&(&mc->mca_lock)->rlock){+.-...}
and interrupts could create inverse lock ordering between them.
other info that might help us debug this:
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(_xmit_INFINIBAND);
local_irq_disable();
lock(&(&mc->mca_lock)->rlock);
lock(_xmit_INFINIBAND);
<Interrupt>
lock(&(&mc->mca_lock)->rlock);
*** DEADLOCK ***
2 locks held by kworker/u64:8/138:
#0: ("%s""ipoib_flush"){.+.+.+}, at: [<ffffffff810736ed>]
process_one_work+0x13d/0x490
#1: ((&priv->flush_light)){+.+.+.}, at: [<ffffffff810736ed>]
process_one_work+0x13d/0x490
the shortest dependencies between 2nd lock and 1st lock:
-> (&(&mc->mca_lock)->rlock){+.-...} ops: 91 {
HARDIRQ-ON-W at:
[<ffffffff810a86b6>] __lock_acquire+0x566/0x1480
[<ffffffff810a9990>] lock_acquire+0x60/0x80
[<ffffffff815b159a>] _raw_spin_lock_bh+0x3a/0x50
[<ffffffff815879e5>] igmp6_group_added+0x35/0x190
[<ffffffff815885bf>] ipv6_dev_mc_inc+0x33f/0x470
[<ffffffff815644e7>] ipv6_add_dev+0x3d7/0x4b0
[<ffffffff81b07278>] addrconf_init+0x8e/0x209
[<ffffffff81b07075>] inet6_init+0x1aa/0x30d
[<ffffffff81000418>] do_one_initcall+0x38/0x150
[<ffffffff81ac7076>] kernel_init_freeable+0x1b1/0x239
[<ffffffff815a4729>] kernel_init+0x9/0x100
[<ffffffff815b20af>] ret_from_fork+0x1f/0x40
IN-SOFTIRQ-W at:
[<ffffffff810a868a>] __lock_acquire+0x53a/0x1480
[<ffffffff810a9990>] lock_acquire+0x60/0x80
[<ffffffff815b159a>] _raw_spin_lock_bh+0x3a/0x50
[<ffffffff81586f18>] mld_ifc_timer_expire+0xe8/0x2b0
[<ffffffff810c05a6>] call_timer_fn+0x66/0xe0
[<ffffffff810c07cc>] run_timer_softirq+0x1ac/0x250
[<ffffffff8105e43f>] __do_softirq+0x10f/0x230
[<ffffffff8105e6e8>] irq_exit+0xa8/0xb0
[<ffffffff8103aa48>]
smp_trace_apic_timer_interrupt+0x68/0x90
[<ffffffff8103aa79>] smp_apic_timer_interrupt+0x9/0x10
[<ffffffff815b2aa9>] apic_timer_interrupt+0x89/0x90
[<ffffffff8146ba38>] cpuidle_enter_state+0x138/0x210
[<ffffffff8146bb32>] cpuidle_enter+0x12/0x20
[<ffffffff8109d283>] cpu_startup_entry+0x1c3/0x210
[<ffffffff815a4710>] rest_init+0x130/0x140
[<ffffffff81ac6eb8>] start_kernel+0x3e9/0x3f6
[<ffffffff81ac6294>] x86_64_start_reservations+0x2f/0x31
[<ffffffff81ac63c0>] x86_64_start_kernel+0x12a/0x135
INITIAL USE at:
[<ffffffff810a836c>] __lock_acquire+0x21c/0x1480
[<ffffffff810a9990>] lock_acquire+0x60/0x80
[<ffffffff815b159a>] _raw_spin_lock_bh+0x3a/0x50
[<ffffffff815879e5>] igmp6_group_added+0x35/0x190
[<ffffffff815885bf>] ipv6_dev_mc_inc+0x33f/0x470
[<ffffffff815644e7>] ipv6_add_dev+0x3d7/0x4b0
[<ffffffff81b07278>] addrconf_init+0x8e/0x209
[<ffffffff81b07075>] inet6_init+0x1aa/0x30d
[<ffffffff81000418>] do_one_initcall+0x38/0x150
[<ffffffff81ac7076>] kernel_init_freeable+0x1b1/0x239
[<ffffffff815a4729>] kernel_init+0x9/0x100
[<ffffffff815b20af>] ret_from_fork+0x1f/0x40
}
... key at: [<ffffffff82940b20>] __key.57090+0x0/0x8
... acquired at:
[<ffffffff810a9990>] lock_acquire+0x60/0x80
[<ffffffff815b159a>] _raw_spin_lock_bh+0x3a/0x50
[<ffffffff814b6f07>] __dev_mc_add+0x27/0x80
[<ffffffff814b6f6b>] dev_mc_add+0xb/0x10
[<ffffffff81587b01>] igmp6_group_added+0x151/0x190
[<ffffffff815885bf>] ipv6_dev_mc_inc+0x33f/0x470
[<ffffffff815644e7>] ipv6_add_dev+0x3d7/0x4b0
[<ffffffff8156a8be>] addrconf_notify+0x3ae/0xd10
[<ffffffff8107b198>] notifier_call_chain+0x58/0x80
[<ffffffff8107b1e1>] raw_notifier_call_chain+0x11/0x20
[<ffffffff814a6220>] call_netdevice_notifiers_info+0x30/0x60
[<ffffffff814b1e35>] register_netdevice+0x455/0x510
[<ffffffff814b1f05>] register_netdev+0x15/0x30
[<ffffffffa02d3189>] ipoib_add_one+0x259/0x490 [ib_ipoib]
[<ffffffffa0377485>] ib_register_client+0x65/0xb0 [ib_core]
[<ffffffffa02e70f2>] srp_rport_set_state+0x42/0x80 [scsi_transport_srp]
[<ffffffff81000418>] do_one_initcall+0x38/0x150
[<ffffffff8111acc9>] do_init_module+0x55/0x1cc
[<ffffffff810db55b>] load_module+0x20ab/0x2660
[<ffffffff810dbd53>] SYSC_finit_module+0xc3/0xf0
[<ffffffff810dbd99>] SyS_finit_module+0x9/0x10
[<ffffffff815b1e69>] entry_SYSCALL_64_fastpath+0x1c/0xac
> (_xmit_INFINIBAND){+.+...} ops: 5 {
HARDIRQ-ON-W at:
[<ffffffff810a86b6>] __lock_acquire+0x566/0x1480
[<ffffffff810a9990>] lock_acquire+0x60/0x80
[<ffffffff815b159a>] _raw_spin_lock_bh+0x3a/0x50
[<ffffffff814b6f07>] __dev_mc_add+0x27/0x80
[<ffffffff814b6f6b>] dev_mc_add+0xb/0x10
[<ffffffff81587b01>] igmp6_group_added+0x151/0x190
[<ffffffff815885bf>] ipv6_dev_mc_inc+0x33f/0x470
[<ffffffff815644e7>] ipv6_add_dev+0x3d7/0x4b0
[<ffffffff8156a8be>] addrconf_notify+0x3ae/0xd10
[<ffffffff8107b198>] notifier_call_chain+0x58/0x80
[<ffffffff8107b1e1>] raw_notifier_call_chain+0x11/0x20
[<ffffffff814a6220>] call_netdevice_notifiers_info+0x30/0x60
[<ffffffff814b1e35>] register_netdevice+0x455/0x510
[<ffffffff814b1f05>] register_netdev+0x15/0x30
[<ffffffffa02d3189>] ipoib_add_one+0x259/0x490 [ib_ipoib]
[<ffffffffa0377485>] ib_register_client+0x65/0xb0 [ib_core]
[<ffffffffa02e70f2>] srp_rport_set_state+0x42/0x80
[scsi_transport_srp]
[<ffffffff81000418>] do_one_initcall+0x38/0x150
[<ffffffff8111acc9>] do_init_module+0x55/0x1cc
[<ffffffff810db55b>] load_module+0x20ab/0x2660
[<ffffffff810dbd53>] SYSC_finit_module+0xc3/0xf0
[<ffffffff810dbd99>] SyS_finit_module+0x9/0x10
[<ffffffff815b1e69>] entry_SYSCALL_64_fastpath+0x1c/0xac
SOFTIRQ-ON-W at:
[<ffffffff810a86e8>] __lock_acquire+0x598/0x1480
[<ffffffff810a9990>] lock_acquire+0x60/0x80
[<ffffffff815b1453>] _raw_spin_lock+0x33/0x50
[<ffffffffa02d360f>] ipoib_dev_addr_changed_valid+0x5f/0x1b0
[ib_ipoib]
[<ffffffffa02d5875>] __ipoib_ib_dev_flush+0x125/0x440
[ib_ipoib]
[<ffffffffa02d5c54>] ipoib_ib_dev_flush_light+0x14/0x20
[ib_ipoib]
[<ffffffff8107374d>] process_one_work+0x19d/0x490
[<ffffffff81073a89>] worker_thread+0x49/0x490
[<ffffffff8107a04a>] kthread+0xea/0x100
[<ffffffff815b20af>] ret_from_fork+0x1f/0x40
INITIAL USE at:
[<ffffffff810a836c>] __lock_acquire+0x21c/0x1480
[<ffffffff810a9990>] lock_acquire+0x60/0x80
[<ffffffff815b159a>] _raw_spin_lock_bh+0x3a/0x50
[<ffffffff814b6f07>] __dev_mc_add+0x27/0x80
[<ffffffff814b6f6b>] dev_mc_add+0xb/0x10
[<ffffffff81587b01>] igmp6_group_added+0x151/0x190
[<ffffffff815885bf>] ipv6_dev_mc_inc+0x33f/0x470
[<ffffffff815644e7>] ipv6_add_dev+0x3d7/0x4b0
[<ffffffff8156a8be>] addrconf_notify+0x3ae/0xd10
[<ffffffff8107b198>] notifier_call_chain+0x58/0x80
[<ffffffff8107b1e1>] raw_notifier_call_chain+0x11/0x20
[<ffffffff814a6220>] call_netdevice_notifiers_info+0x30/0x60
[<ffffffff814b1e35>] register_netdevice+0x455/0x510
[<ffffffff814b1f05>] register_netdev+0x15/0x30
[<ffffffffa02d3189>] ipoib_add_one+0x259/0x490 [ib_ipoib]
[<ffffffffa0377485>] ib_register_client+0x65/0xb0 [ib_core]
[<ffffffffa02e70f2>] srp_rport_set_state+0x42/0x80
[scsi_transport_srp]
[<ffffffff81000418>] do_one_initcall+0x38/0x150
[<ffffffff8111acc9>] do_init_module+0x55/0x1cc
[<ffffffff810db55b>] load_module+0x20ab/0x2660
[<ffffffff810dbd53>] SYSC_finit_module+0xc3/0xf0
[<ffffffff810dbd99>] SyS_finit_module+0x9/0x10
[<ffffffff815b1e69>] entry_SYSCALL_64_fastpath+0x1c/0xac
}
... key at: [<ffffffff8292b3d0>] netdev_addr_lock_key+0x70/0x1e0
... acquired at:
[<ffffffff810a6ba9>] check_usage_backwards+0x129/0x130
[<ffffffff810a7966>] mark_lock+0x336/0x610
[<ffffffff810a86e8>] __lock_acquire+0x598/0x1480
[<ffffffff810a9990>] lock_acquire+0x60/0x80
[<ffffffff815b1453>] _raw_spin_lock+0x33/0x50
[<ffffffffa02d360f>] ipoib_dev_addr_changed_valid+0x5f/0x1b0 [ib_ipoib]
[<ffffffffa02d5875>] __ipoib_ib_dev_flush+0x125/0x440 [ib_ipoib]
[<ffffffffa02d5c54>] ipoib_ib_dev_flush_light+0x14/0x20 [ib_ipoib]
[<ffffffff8107374d>] process_one_work+0x19d/0x490
[<ffffffff81073a89>] worker_thread+0x49/0x490
[<ffffffff8107a04a>] kthread+0xea/0x100
[<ffffffff815b20af>] ret_from_fork+0x1f/0x40
stack backtrace:
CPU: 5 PID: 138 Comm: kworker/u64:8 Not tainted 4.7.0-rc1-dbg+ #1
Hardware name: Dell Inc. PowerEdge R430/03XKDV, BIOS 1.0.2 11/17/2014
Workqueue: ipoib_flush ipoib_ib_dev_flush_light [ib_ipoib]
0000000000000000 ffff88045d53bac0 ffffffff812c71a5 ffffffff826d0720
ffff88045d53bb20 ffff88045d53bb00 ffffffff8111a93c ffff88045d5aea88
ffff88045d5aea88 ffff88045d5ae240 ffffffff81797209 0000000000000000
Call Trace:
[<ffffffff812c71a5>] dump_stack+0x67/0x92
[<ffffffff8111a93c>] print_irq_inversion_bug.part.36+0x1a4/0x1b0
[<ffffffff810a6ba9>] check_usage_backwards+0x129/0x130
[<ffffffff810a7966>] mark_lock+0x336/0x610
[<ffffffff810a6a80>] ? print_shortest_lock_dependencies+0x1a0/0x1a0
[<ffffffff810a86e8>] __lock_acquire+0x598/0x1480
[<ffffffff81178509>] ? kfree+0xa9/0x150
[<ffffffffa03d5a81>] ? __mlx4_ib_query_gid+0x111/0x1b0 [mlx4_ib]
[<ffffffff811785a4>] ? kfree+0x144/0x150
[<ffffffff810a9990>] lock_acquire+0x60/0x80
[<ffffffffa02d360f>] ? ipoib_dev_addr_changed_valid+0x5f/0x1b0 [ib_ipoib]
[<ffffffff815b1453>] _raw_spin_lock+0x33/0x50
[<ffffffffa02d360f>] ? ipoib_dev_addr_changed_valid+0x5f/0x1b0 [ib_ipoib]
[<ffffffffa02d360f>] ipoib_dev_addr_changed_valid+0x5f/0x1b0 [ib_ipoib]
[<ffffffffa02d5875>] __ipoib_ib_dev_flush+0x125/0x440 [ib_ipoib]
[<ffffffffa02d5c54>] ipoib_ib_dev_flush_light+0x14/0x20 [ib_ipoib]
[<ffffffff8107374d>] process_one_work+0x19d/0x490
[<ffffffff810736ed>] ? process_one_work+0x13d/0x490
[<ffffffff81073a89>] worker_thread+0x49/0x490
[<ffffffff81073a40>] ? process_one_work+0x490/0x490
[<ffffffff8107a04a>] kthread+0xea/0x100
[<ffffffff815b20af>] ret_from_fork+0x1f/0x40
[<ffffffff81079f60>] ? kthread_create_on_node+0x1f0/0x1f0
--
You are receiving this mail because:
You are watching the assignee of the bug.
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
reply other threads:[~2016-06-02 20:06 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=bug-119561-11804@https.bugzilla.kernel.org/ \
--to=bugzilla-daemon-590eeb7gvniway/ihj7yzeb+6bgklq7r@public.gmane.org \
--cc=linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.