UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity
OpenCloudOS-Kernel/drivers/infiniband/core
History
Manjunath Patil 2e90774fbb RDMA/cm: add timeout to cm_destroy_id wait 
[ Upstream commit 96d9cbe2f2ff7abde021bac75eafaceabe9a51fa ]

Add timeout to cm_destroy_id, so that userspace can trigger any data
collection that would help in analyzing the cause of delay in destroying
the cm_id.

New noinline function helps dtrace/ebpf programs to hook on to it.
Existing functionality isn't changed except triggering a probe-able new
function at every timeout interval.

We have seen cases where CM messages stuck with MAD layer (either due to
software bug or faulty HCA), leading to cm_id getting stuck in the
following call stack. This patch helps in resolving such issues faster.

kernel: ... INFO: task XXXX:56778 blocked for more than 120 seconds.
...
	Call Trace:
	__schedule+0x2bc/0x895
	schedule+0x36/0x7c
	schedule_timeout+0x1f6/0x31f
 	? __slab_free+0x19c/0x2ba
	wait_for_completion+0x12b/0x18a
	? wake_up_q+0x80/0x73
	cm_destroy_id+0x345/0x610 [ib_cm]
	ib_destroy_cm_id+0x10/0x20 [ib_cm]
	rdma_destroy_id+0xa8/0x300 [rdma_cm]
	ucma_destroy_id+0x13e/0x190 [rdma_ucm]
	ucma_write+0xe0/0x160 [rdma_ucm]
	__vfs_write+0x3a/0x16d
	vfs_write+0xb2/0x1a1
	? syscall_trace_enter+0x1ce/0x2b8
	SyS_write+0x5c/0xd3
	do_syscall_64+0x79/0x1b9
	entry_SYSCALL_64_after_hwframe+0x16d/0x0

Signed-off-by: Manjunath Patil <manjunath.b.patil@oracle.com>
Link: https://lore.kernel.org/r/20240309063323.458102-1-manjunath.b.patil@oracle.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2024-04-13 13:07:37 +02:00
..
Makefile RDMA/umem: Support importing dma-buf as user memory region 2021-01-20 16:07:52 -04:00
addr.c RDMA/core: Delete useless module.h include 2022-01-28 13:03:12 -04:00
agent.c
…
agent.h
…
cache.c v6.6 merge window RDMA pull request 2023-09-01 16:49:33 -07:00
cgroup.c
…
cm.c RDMA/cm: add timeout to cm_destroy_id wait 2024-04-13 13:07:37 +02:00
cm_msgs.h RDMA/core: Add necessary spaces 2021-04-12 14:52:22 -03:00
cm_trace.c RDMA/cm: Replace pr_debug() call sites with tracepoints 2020-08-24 19:41:41 -03:00
cm_trace.h trace: Relocate event helper files 2022-12-10 11:01:12 -05:00
cma.c RDMA/cma: Initialize ib_sa_multicast structure to 0 when join 2023-10-02 13:10:40 +03:00
cma_configfs.c RDMA/cma: Fix truncation compilation warning in make_cma_ports 2023-09-18 11:52:10 +03:00
cma_priv.h RDMA/core: Add an rb_tree that stores cm_ids sorted by ifindex and remote IP 2022-06-16 09:54:35 +03:00
cma_trace.c
…
cma_trace.h trace: Relocate event helper files 2022-12-10 11:01:12 -05:00
core_priv.h RDMA/core: Create clean QP creations interface for uverbs 2021-08-03 15:26:19 -03:00
counters.c RDMA/counter: Add optional counter support 2021-10-12 12:48:05 -03:00
cq.c RDMA/core: Delete useless module.h include 2022-01-28 13:03:12 -04:00
device.c RDMA/device: Fix a race between mad_client and cm_client init 2024-03-26 18:20:01 -04:00
ib_core_uverbs.c
…
iwcm.c RDMA/iwcm: Release resources if iw_cm module initialization fails 2021-07-30 10:01:40 -03:00
iwcm.h RDMA/core: Use refcount_t instead of atomic_t on refcount of iwcm_id_private 2021-06-08 14:35:44 -03:00
iwpm_msg.c RDMA/iwpm: Rely on the rdma_nl_[un]register() to ensure that requests are valid 2021-07-30 10:01:41 -03:00
iwpm_util.c RDMA: Remove unnecessary NULL values 2023-08-07 16:56:57 +03:00
iwpm_util.h RDMA/core: Delete useless module.h include 2022-01-28 13:03:12 -04:00
lag.c RDMA/core: Remove 'device' argument from rdma_build_skb() 2022-08-28 14:29:07 +03:00
mad.c IB/mad: Don't call to function that might sleep while in atomic context 2022-11-10 10:57:15 +02:00
mad_priv.h RDMA/core: Remove refcount from struct ib_mad_snoop_private 2021-06-08 14:43:28 -03:00
mad_rmpp.c RDMA/core: Remove redundant spaces 2021-04-12 14:56:48 -03:00
mad_rmpp.h
…
mr_pool.c
…
multicast.c RDMA/core: Use refcount_t instead of atomic_t on refcount of mcast_port 2021-06-08 14:45:07 -03:00
netlink.c RDMA: Remove unnecessary ternary operators 2023-07-31 15:16:12 +03:00
nldev.c RDMA/core: Require admin capabilities to set system parameters 2023-10-05 20:01:47 +03:00
opa_smi.h RDMA: Support more than 255 rdma ports 2021-03-26 09:31:21 -03:00
packer.c
…
rdma_core.c RDMA: Correct duplicated words in comments 2022-06-24 16:52:28 -03:00
rdma_core.h
…
restrack.c RDMA/restrack: Release MR restrack when delete 2022-11-15 09:56:32 +02:00
restrack.h RDMA/restrack: Improve readability in task name management 2020-09-22 19:47:35 -03:00
roce_gid_mgmt.c IB: Fix repeated words 'the the' comments 2022-07-22 12:02:29 -03:00
rw.c RDMA/rw: drop pci_p2pdma_[un]map_sg() 2022-07-26 07:28:07 -04:00
sa.h RDMA: Support more than 255 rdma ports 2021-03-26 09:31:21 -03:00
sa_query.c RDMA/core: Use size_{add,sub,mul}() in calls to struct_size() 2023-11-20 11:59:18 +01:00
security.c IB/core: Removed port validity check from ib_get_cached_subnet_prefix 2021-06-21 20:49:32 -03:00
smi.c RDMA: Support more than 255 rdma ports 2021-03-26 09:31:21 -03:00
smi.h RDMA: Support more than 255 rdma ports 2021-03-26 09:31:21 -03:00
sysfs.c RDMA/core: Use size_{add,sub,mul}() in calls to struct_size() 2023-11-20 11:59:18 +01:00
trace.c RDMA/core: Clean up tracepoint headers 2020-07-06 14:54:46 -03:00
ucma.c RDMA/core: Rename rdma_route.num_paths field to num_pri_alt_paths 2022-09-22 12:35:13 +03:00
ud_header.c RDMA/core: Fix incorrect print format specifier 2021-06-21 15:38:30 -03:00
umem.c RDMA/core: Fix umem iterator when PAGE_SIZE is greater then HCA pgsz 2023-12-13 18:45:16 +01:00
umem_dmabuf.c RDMA/umem: Use dma-buf locked API to solve deadlock 2023-01-31 10:24:49 -04:00
umem_odp.c Linux 6.0 2022-10-06 19:48:45 -03:00
user_mad.c RDMA/core: Use size_{add,sub,mul}() in calls to struct_size() 2023-11-20 11:59:18 +01:00
uverbs.h RDMA/core: Use refcount_t instead of atomic_t on refcount of ib_uverbs_device 2021-06-08 15:04:36 -03:00
uverbs_cmd.c RDMA/uverbs: Restrict usage of privileged QKEYs 2023-06-11 11:26:06 +03:00
uverbs_ioctl.c RDMA/core: Add UVERBS_ATTR_RAW_FD 2022-09-27 10:15:24 -03:00
uverbs_main.c RDMA/uverbs: Fix typo of sizeof argument 2023-09-11 15:01:09 +03:00
uverbs_marshall.c RDMA/core: Don't infoleak GRH fields 2022-01-05 16:30:19 -04:00
uverbs_std_types.c RDMA/core: Make FD destroy callback void 2020-11-12 12:32:17 -04:00
uverbs_std_types_async_fd.c RDMA/core: Make FD destroy callback void 2020-11-12 12:32:17 -04:00
uverbs_std_types_counters.c IB/uverbs: Fix an potential error pointer dereference 2023-08-07 16:49:59 +03:00
uverbs_std_types_cq.c RDMA/core: Postpone uobject cleanup on failure till FD close 2020-11-12 12:32:17 -04:00
uverbs_std_types_device.c RDMA/uverbs: Fix a NULL vs IS_ERR() bug 2021-05-19 15:32:07 -03:00
uverbs_std_types_dm.c RDMA/core: Postpone uobject cleanup on failure till FD close 2020-11-12 12:32:17 -04:00
uverbs_std_types_flow_action.c RDMA/core: Delete IPsec flow action logic from the core 2022-04-09 08:25:06 +03:00
uverbs_std_types_mr.c RDMA/uverbs: Track dmabuf memory regions 2021-08-19 09:59:53 -03:00
uverbs_std_types_qp.c IB/uverbs: fix the typo of optional 2022-10-19 09:46:45 +03:00
uverbs_std_types_srq.c RDMA/core: Postpone uobject cleanup on failure till FD close 2020-11-12 12:32:17 -04:00
uverbs_std_types_wq.c RDMA/core: Postpone uobject cleanup on failure till FD close 2020-11-12 12:32:17 -04:00
uverbs_uapi.c RDMA/uverbs: Check for null return of kmalloc_array 2022-01-05 14:16:53 -04:00
verbs.c RDMA/core: Fix uninit-value access in ib_get_eth_speed() 2023-12-13 18:45:11 +01:00