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linux/include
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Leonid Ravich 47e31b86ed IB/mad: Don't call to function that might sleep while in atomic context 
[ Upstream commit 5c20311d76 ]

Tracepoints are not allowed to sleep, as such the following splat is
generated due to call to ib_query_pkey() in atomic context.

WARNING: CPU: 0 PID: 1888000 at kernel/trace/ring_buffer.c:2492 rb_commit+0xc1/0x220
CPU: 0 PID: 1888000 Comm: kworker/u9:0 Kdump: loaded Tainted: G           OE    --------- -  - 4.18.0-305.3.1.el8.x86_64 #1
 Hardware name: Red Hat KVM, BIOS 1.13.0-2.module_el8.3.0+555+a55c8938 04/01/2014
 Workqueue: ib-comp-unb-wq ib_cq_poll_work [ib_core]
 RIP: 0010:rb_commit+0xc1/0x220
 RSP: 0000:ffffa8ac80f9bca0 EFLAGS: 00010202
 RAX: ffff8951c7c01300 RBX: ffff8951c7c14a00 RCX: 0000000000000246
 RDX: ffff8951c707c000 RSI: ffff8951c707c57c RDI: ffff8951c7c14a00
 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
 R10: ffff8951c7c01300 R11: 0000000000000001 R12: 0000000000000246
 R13: 0000000000000000 R14: ffffffff964c70c0 R15: 0000000000000000
 FS:  0000000000000000(0000) GS:ffff8951fbc00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f20e8f39010 CR3: 000000002ca10005 CR4: 0000000000170ef0
 Call Trace:
  ring_buffer_unlock_commit+0x1d/0xa0
  trace_buffer_unlock_commit_regs+0x3b/0x1b0
  trace_event_buffer_commit+0x67/0x1d0
  trace_event_raw_event_ib_mad_recv_done_handler+0x11c/0x160 [ib_core]
  ib_mad_recv_done+0x48b/0xc10 [ib_core]
  ? trace_event_raw_event_cq_poll+0x6f/0xb0 [ib_core]
  __ib_process_cq+0x91/0x1c0 [ib_core]
  ib_cq_poll_work+0x26/0x80 [ib_core]
  process_one_work+0x1a7/0x360
  ? create_worker+0x1a0/0x1a0
  worker_thread+0x30/0x390
  ? create_worker+0x1a0/0x1a0
  kthread+0x116/0x130
  ? kthread_flush_work_fn+0x10/0x10
  ret_from_fork+0x35/0x40
 ---[ end trace 78ba8509d3830a16 ]---

Fixes: 821bf1de45 ("IB/MAD: Add recv path trace point")
Signed-off-by: Leonid Ravich <lravich@gmail.com>
Link: https://lore.kernel.org/r/Y2t5feomyznrVj7V@leonid-Inspiron-3421
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2022-12-31 13:14:23 +01:00
..
acpi ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init() 2022-11-10 18:15:34 +01:00
asm-generic mm/khugepaged: fix GUP-fast interaction by sending IPI 2022-12-14 11:37:17 +01:00
clocksource drivers: hv: Decouple Hyper-V clock/timer code from VMbus drivers 2021-07-19 09:24:28 +00:00
crypto crypto: blake2s - remove shash module 2022-08-17 14:24:19 +02:00
drm drm/bridge: Add stubs for devm_drm_of_get_bridge when OF is disabled 2022-09-05 10:30:03 +02:00
dt-bindings clk: imx8mn: rename vpu_pll to m7_alt_pll 2022-12-31 13:14:12 +01:00
keys integrity-v5.13 2021-05-01 15:32:18 -07:00
kunit kunit: fix kernel-doc warnings due to mismatched arg names 2021-10-06 17:54:07 -06:00
kvm KVM: arm64: Fix PMU probe ordering 2021-09-20 12:43:34 +01:00
linux bpf, sockmap: Fix missing BPF_F_INGRESS flag when using apply_bytes 2022-12-31 13:14:14 +01:00
math-emu math-emu: Fix fall-through warning 2021-07-13 13:57:44 -05:00
media media: v4l: subdev: Fail graciously when getting try data for NULL state 2022-11-10 18:15:34 +01:00
memory memory: renesas-rpc-if: Fix HF/OSPI data transfer in Manual Mode 2022-05-09 09:14:34 +02:00
misc ocxl: Update the Process Element Entry 2020-12-04 01:01:30 +11:00
net bpf, sockmap: Fix missing BPF_F_INGRESS flag when using apply_bytes 2022-12-31 13:14:14 +01:00
pcmcia pcmcia: Replace zero-length array with flexible-array 2020-05-18 10:28:31 +02:00
ras Revert "mm/memory-failure.c: fix race with changing page compound again" 2022-07-12 16:35:17 +02:00
rdma RDMA/netlink: Add __maybe_unused to static inline in C file 2021-11-25 09:49:07 +01:00
scsi scsi: iscsi: Add recv workqueue helpers 2022-10-26 12:35:15 +02:00
soc ARM: at91: pm: avoid soft resetting AC DLL 2022-11-26 09:24:34 +01:00
sound ALSA: pcm: fix undefined behavior in bit shift for SNDRV_PCM_RATE_KNOT 2022-12-31 13:14:11 +01:00
target scsi: target: Fix ordered tag handling 2021-11-25 09:48:29 +01:00
trace IB/mad: Don't call to function that might sleep while in atomic context 2022-12-31 13:14:23 +01:00
uapi ALSA: seq: fix undefined behavior in bit shift for SNDRV_SEQ_FILTER_USE_EVENT 2022-12-31 13:14:11 +01:00
vdso time64.h: Consolidated PSEC_PER_SEC definition 2021-04-06 16:32:17 -07:00
video video: of_display_timing.h: include errno.h 2022-07-12 16:35:10 +02:00
xen xen/gnttab: fix gnttab_end_foreign_access() without page specified 2022-03-11 12:22:37 +01:00