Mark Bloch 9db0ff53cb IB/cm: Mark stale CM id's whenever the mad agent was unregistered ... When there is a CM id object that has port assigned to it, it means that the cm-id asked for the specific port that it should go by it, but if that port was removed (hot-unplug event) the cm-id was not updated. In order to fix that the port keeps a list of all the cm-id's that are planning to go by it, whenever the port is removed it marks all of them as invalid. This commit fixes a kernel panic which happens when running traffic between guests and we force reboot a guest mid traffic, it triggers a kernel panic: Call Trace: [<ffffffff815271fa>] ? panic+0xa7/0x16f [<ffffffff8152b534>] ? oops_end+0xe4/0x100 [<ffffffff8104a00b>] ? no_context+0xfb/0x260 [<ffffffff81084db2>] ? del_timer_sync+0x22/0x30 [<ffffffff8104a295>] ? __bad_area_nosemaphore+0x125/0x1e0 [<ffffffff81084240>] ? process_timeout+0x0/0x10 [<ffffffff8104a363>] ? bad_area_nosemaphore+0x13/0x20 [<ffffffff8104aabf>] ? __do_page_fault+0x31f/0x480 [<ffffffff81065df0>] ? default_wake_function+0x0/0x20 [<ffffffffa0752675>] ? free_msg+0x55/0x70 [mlx5_core] [<ffffffffa0753434>] ? cmd_exec+0x124/0x840 [mlx5_core] [<ffffffff8105a924>] ? find_busiest_group+0x244/0x9f0 [<ffffffff8152d45e>] ? do_page_fault+0x3e/0xa0 [<ffffffff8152a815>] ? page_fault+0x25/0x30 [<ffffffffa024da25>] ? cm_alloc_msg+0x35/0xc0 [ib_cm] [<ffffffffa024e821>] ? ib_send_cm_dreq+0xb1/0x1e0 [ib_cm] [<ffffffffa024f836>] ? cm_destroy_id+0x176/0x320 [ib_cm] [<ffffffffa024fb00>] ? ib_destroy_cm_id+0x10/0x20 [ib_cm] [<ffffffffa034f527>] ? ipoib_cm_free_rx_reap_list+0xa7/0x110 [ib_ipoib] [<ffffffffa034f590>] ? ipoib_cm_rx_reap+0x0/0x20 [ib_ipoib] [<ffffffffa034f5a5>] ? ipoib_cm_rx_reap+0x15/0x20 [ib_ipoib] [<ffffffff81094d20>] ? worker_thread+0x170/0x2a0 [<ffffffff8109b2a0>] ? autoremove_wake_function+0x0/0x40 [<ffffffff81094bb0>] ? worker_thread+0x0/0x2a0 [<ffffffff8109aef6>] ? kthread+0x96/0xa0 [<ffffffff8100c20a>] ? child_rip+0xa/0x20 [<ffffffff8109ae60>] ? kthread+0x0/0xa0 [<ffffffff8100c200>] ? child_rip+0x0/0x20 Fixes: a977049dac ("[PATCH] IB: Add the kernel CM implementation") Signed-off-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Erez Shitrit <erezsh@mellanox.com> Reviewed-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>		2016-11-16 20:03:44 -05:00
..
addr.c	IB/addr: Remove deprecated create_singlethread_workqueue	2016-10-07 16:54:25 -04:00
agent.c	IB: split struct ib_send_wr	2015-10-08 11:09:10 +01:00
agent.h	IB/mad: Add final OPA MAD processing	2015-06-12 14:49:18 -04:00
cache.c	IB/core: Fix no default GIDs when netdevice reregisters	2016-06-23 10:03:57 -04:00
cm_msgs.h	IB/core: Fix unaligned accesses	2015-05-05 13:21:27 -04:00
cm.c	IB/cm: Mark stale CM id's whenever the mad agent was unregistered	2016-11-16 20:03:44 -05:00
cma_configfs.c	configfs: switch ->default groups to a linked list	2016-03-06 16:11:24 +01:00
cma.c	Merge of primary rdma-core code for 4.9	2016-10-09 17:04:33 -07:00
core_priv.h	IB/core: Add IP to GID netlink offload	2016-05-24 14:44:04 -04:00
cq.c	IB: add a proper completion queue abstraction	2015-12-11 14:10:43 -08:00
device.c	IB/core: Add get FW version string to the core	2016-06-23 12:08:33 -04:00
fmr_pool.c	IB/core: trivial prink cleanup.	2016-03-03 10:20:25 -05:00
iwcm.c	IB/iwcm: Remove deprecated create_singlethread_workqueue	2016-10-07 16:54:25 -04:00
iwcm.h	iw_cm: free cm_id resources on the last deref	2016-08-02 13:15:18 -04:00
iwpm_msg.c	RDMA/core: Fix indentation	2016-06-06 19:36:21 -04:00
iwpm_util.c	Use smaller 512 byte messages for portmapper messages	2016-08-03 21:03:33 -04:00
iwpm_util.h	iwpm: crash fix for large connections test	2016-03-16 13:48:32 -04:00
mad_priv.h	IB/mad: use CQ abstraction	2016-01-19 15:25:45 -05:00
mad_rmpp.c	IB/mad: Add final OPA MAD processing	2015-06-12 14:49:18 -04:00
mad_rmpp.h
mad.c	IB/mad: Remove deprecated create_singlethread_workqueue	2016-10-07 16:54:23 -04:00
Makefile	IB/SA: Integrate ib_sa module into ib_core module	2016-05-24 14:42:36 -04:00
mr_pool.c	IB/core: add a simple MR pool	2016-05-13 13:37:18 -04:00
multicast.c	Merge of primary rdma-core code for 4.9	2016-10-09 17:04:33 -07:00
netlink.c	IB/core: Add flow control to the portmapper netlink calls	2016-08-02 13:14:27 -04:00
opa_smi.h	IB: Add rdma_cap_ib_switch helper and use where appropriate	2015-07-14 13:20:08 -04:00
packer.c	IB/core: trivial prink cleanup.	2016-03-03 10:20:25 -05:00
roce_gid_mgmt.c	IB/core: Move rdma_is_upper_dev_rcu to header file	2015-12-23 10:35:12 -05:00
rw.c	IB/core, RDMA RW API: Do not exceed QP SGE send limit	2016-08-02 12:02:41 -04:00
sa_query.c	IB/sa : Remove deprecated create_singlethread_workqueue	2016-10-07 16:54:22 -04:00
sa.h
smi.c	IB: Add rdma_cap_ib_switch helper and use where appropriate	2015-07-14 13:20:08 -04:00
smi.h	IB: Add rdma_cap_ib_switch helper and use where appropriate	2015-07-14 13:20:08 -04:00
sysfs.c	IB/{core,hw}: Add constant for node_desc	2016-10-07 16:54:34 -04:00
ucm.c	IB/security: Restrict use of the write() interface	2016-04-28 12:03:16 -04:00
ucma.c	IB/ucma: Remove deprecated create_singlethread_workqueue	2016-10-07 16:54:24 -04:00
ud_header.c	IB/core: trivial prink cleanup.	2016-03-03 10:20:25 -05:00
umem_odp.c	mm: replace get_user_pages_remote() write/force parameters with gup_flags	2016-10-19 08:12:02 -07:00
umem_rbtree.c
umem.c	mm: replace get_user_pages() write/force parameters with gup_flags	2016-10-19 08:11:43 -07:00
user_mad.c	IB/mad: pass ib_mad_send_buf explicitly to the recv_handler	2016-01-19 15:25:36 -05:00
uverbs_cmd.c	IB/core: Add more fields to IPv6 flow specification	2016-10-07 16:54:18 -04:00
uverbs_main.c	IB/uverbs: Fix leak of XRC target QPs	2016-11-16 20:03:44 -05:00
uverbs_marshall.c	IB/core: Add gid_type to gid attribute	2015-12-23 10:35:10 -05:00
uverbs.h	Merge branches 'misc' and 'rxe' into k.o/for-4.8-1	2016-08-04 11:13:47 -04:00
verbs.c	IB/core: correctly handle rdma_rw_init_mrs() failure	2016-10-07 16:54:39 -04:00