Re: [bug report] rdma_rxe: WARNING: inconsistent lock state, inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage

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Hi, all

In 5.18-rc1, this commit "[PATCH for-next] RDMA/rxe: Revert changes from irqsave to bh locks" does not exist.

The link is https://patchwork.kernel.org/project/linux-rdma/patch/20220215194448.44369-1-rpearsonhpe@xxxxxxxxx/

Please apply this commit and make tests again.
Please let me know the test result.

Best Regards,

Zhu Yanjun

在 2022/4/6 11:08, Yi Zhang 写道:
Hello

Below WARNING triggered during blktests srp/ tests with 5.18.0-rc1
debug kernel, pls help check it, let me know if you need any info for
it, thanks.

[  290.308984] run blktests srp/001 at 2022-04-05 23:01:02
[  290.999913] null_blk: module loaded
[  291.260285] device-mapper: multipath service-time: version 0.3.0 loaded
[  291.262990] device-mapper: table: 253:3: multipath: error getting
device (-EBUSY)
[  291.270535] device-mapper: ioctl: error adding target to table
[  291.362284] rdma_rxe: loaded
[  291.428444] infiniband eno1_rxe: set active
[  291.428462] infiniband eno1_rxe: added eno1
[  291.467142] eno2 speed is unknown, defaulting to 1000
[  291.472327] eno2 speed is unknown, defaulting to 1000
[  291.477680] eno2 speed is unknown, defaulting to 1000
[  291.516123] infiniband eno2_rxe: set down
[  291.516130] infiniband eno2_rxe: added eno2
[  291.516649] eno2 speed is unknown, defaulting to 1000
[  291.542551] eno2 speed is unknown, defaulting to 1000
[  291.558995] eno3 speed is unknown, defaulting to 1000
[  291.564127] eno3 speed is unknown, defaulting to 1000
[  291.569462] eno3 speed is unknown, defaulting to 1000
[  291.607876] infiniband eno3_rxe: set down
[  291.607883] infiniband eno3_rxe: added eno3
[  291.608430] eno3 speed is unknown, defaulting to 1000
[  291.632891] eno2 speed is unknown, defaulting to 1000
[  291.638180] eno3 speed is unknown, defaulting to 1000
[  291.655089] eno4 speed is unknown, defaulting to 1000
[  291.660213] eno4 speed is unknown, defaulting to 1000
[  291.665569] eno4 speed is unknown, defaulting to 1000
[  291.703975] infiniband eno4_rxe: set down
[  291.703982] infiniband eno4_rxe: added eno4
[  291.704642] eno4 speed is unknown, defaulting to 1000
[  291.822650] scsi_debug:sdebug_add_store: dif_storep 524288 bytes @
ffffc90001801000
[  291.825441] scsi_debug:sdebug_driver_probe: scsi_debug: trim
poll_queues to 0. poll_q/nr_hw = (0/1)
[  291.834505] scsi_debug:sdebug_driver_probe: host protection DIF3 DIX3
[  291.834513] scsi host15: scsi_debug: version 0191 [20210520]
                  dev_size_mb=32, opts=0x0, submit_queues=1, statistics=0
[  291.837267] scsi 15:0:0:0: Direct-Access     Linux    scsi_debug
    0191 PQ: 0 ANSI: 7
[  291.839793] sd 15:0:0:0: Power-on or device reset occurred
[  291.840110] sd 15:0:0:0: Attached scsi generic sg1 type 0
[  291.845521] sd 15:0:0:0: [sdb] Enabling DIF Type 3 protection
[  291.845878] sd 15:0:0:0: [sdb] 65536 512-byte logical blocks: (33.6
MB/32.0 MiB)
[  291.845939] sd 15:0:0:0: [sdb] Write Protect is off
[  291.845954] sd 15:0:0:0: [sdb] Mode Sense: 73 00 10 08
[  291.846049] sd 15:0:0:0: [sdb] Write cache: enabled, read cache:
enabled, supports DPO and FUA
[  291.846254] sd 15:0:0:0: [sdb] Optimal transfer size 524288 bytes
[  291.859380] sd 15:0:0:0: [sdb] Enabling DIX T10-DIF-TYPE3-CRC protection
[  291.859398] sd 15:0:0:0: [sdb] DIF application tag size 6
[  291.860158] sd 15:0:0:0: [sdb] Attached SCSI disk
[  292.666414] eno2 speed is unknown, defaulting to 1000
[  292.771984] eno3 speed is unknown, defaulting to 1000
[  292.876762] eno4 speed is unknown, defaulting to 1000
[  293.033291] Rounding down aligned max_sectors from 4294967295 to 4294967288
[  293.102261] ib_srpt:srpt_add_one: ib_srpt device = 0000000047a39f45
[  293.102363] ib_srpt:srpt_use_srq: ib_srpt srpt_use_srq(eno1_rxe):
use_srq = 0; ret = 0
[  293.102369] ib_srpt:srpt_add_one: ib_srpt Target login info:
id_ext=f2d4e2fffee6e1e0,ioc_guid=f2d4e2fffee6e1e0,pkey=ffff,service_id=f2d4e2fffee6e1e0
[  293.102680] ib_srpt:srpt_add_one: ib_srpt added eno1_rxe.
[  293.102692] ib_srpt:srpt_add_one: ib_srpt device = 00000000b2dfcbe9
[  293.102725] ib_srpt:srpt_use_srq: ib_srpt srpt_use_srq(eno2_rxe):
use_srq = 0; ret = 0
[  293.102730] ib_srpt:srpt_add_one: ib_srpt Target login info:
id_ext=f2d4e2fffee6e1e0,ioc_guid=f2d4e2fffee6e1e0,pkey=ffff,service_id=f2d4e2fffee6e1e0
[  293.102741] eno2 speed is unknown, defaulting to 1000
[  293.107884] ib_srpt:srpt_add_one: ib_srpt added eno2_rxe.
[  293.107893] ib_srpt:srpt_add_one: ib_srpt device = 0000000061e03247
[  293.107922] ib_srpt:srpt_use_srq: ib_srpt srpt_use_srq(eno3_rxe):
use_srq = 0; ret = 0
[  293.107926] ib_srpt:srpt_add_one: ib_srpt Target login info:
id_ext=f2d4e2fffee6e1e0,ioc_guid=f2d4e2fffee6e1e0,pkey=ffff,service_id=f2d4e2fffee6e1e0
[  293.107936] eno3 speed is unknown, defaulting to 1000
[  293.113038] ib_srpt:srpt_add_one: ib_srpt added eno3_rxe.
[  293.113046] ib_srpt:srpt_add_one: ib_srpt device = 00000000c0e3d43d
[  293.113081] ib_srpt:srpt_use_srq: ib_srpt srpt_use_srq(eno4_rxe):
use_srq = 0; ret = 0
[  293.113085] ib_srpt:srpt_add_one: ib_srpt Target login info:
id_ext=f2d4e2fffee6e1e0,ioc_guid=f2d4e2fffee6e1e0,pkey=ffff,service_id=f2d4e2fffee6e1e0
[  293.113096] eno4 speed is unknown, defaulting to 1000
[  293.118198] ib_srpt:srpt_add_one: ib_srpt added eno4_rxe.
[  293.584001] Rounding down aligned max_sectors from 255 to 248
[  293.654030] Rounding down aligned max_sectors from 255 to 248
[  293.724363] Rounding down aligned max_sectors from 4294967295 to 4294967288
[  296.450772] ib_srp:srp_add_one: ib_srp: srp_add_one:
18446744073709551615 / 4096 = 4503599627370495 <> 512
[  296.450783] ib_srp:srp_add_one: ib_srp: eno1_rxe: mr_page_shift =
12, device->max_mr_size = 0xffffffffffffffff,
device->max_fast_reg_page_list_len = 512, max_pages_per_mr = 512,
mr_max_size = 0x200000
[  296.451222] ib_srp:srp_add_one: ib_srp: srp_add_one:
18446744073709551615 / 4096 = 4503599627370495 <> 512
[  296.451229] ib_srp:srp_add_one: ib_srp: eno2_rxe: mr_page_shift =
12, device->max_mr_size = 0xffffffffffffffff,
device->max_fast_reg_page_list_len = 512, max_pages_per_mr = 512,
mr_max_size = 0x200000
[  296.451517] ib_srp:srp_add_one: ib_srp: srp_add_one:
18446744073709551615 / 4096 = 4503599627370495 <> 512
[  296.451523] ib_srp:srp_add_one: ib_srp: eno3_rxe: mr_page_shift =
12, device->max_mr_size = 0xffffffffffffffff,
device->max_fast_reg_page_list_len = 512, max_pages_per_mr = 512,
mr_max_size = 0x200000
[  296.451769] ib_srp:srp_add_one: ib_srp: srp_add_one:
18446744073709551615 / 4096 = 4503599627370495 <> 512
[  296.451774] ib_srp:srp_add_one: ib_srp: eno4_rxe: mr_page_shift =
12, device->max_mr_size = 0xffffffffffffffff,
device->max_fast_reg_page_list_len = 512, max_pages_per_mr = 512,
mr_max_size = 0x200000
[  296.605925] ib_srp:srp_parse_in: ib_srp: 10.16.221.116 -> 10.16.221.116:0
[  296.605956] ib_srp:srp_parse_in: ib_srp: 10.16.221.116:5555 ->
10.16.221.116:5555
[  296.606014] ib_srp:add_target_store: ib_srp: max_sectors = 1024;
max_pages_per_mr = 512; mr_page_size = 4096; max_sectors_per_mr =
4096; mr_per_cmd = 2
[  296.606021] ib_srp:srp_max_it_iu_len: ib_srp: max_iu_len = 8260

[  296.616660] ================================
[  296.620931] WARNING: inconsistent lock state
[  296.625207] 5.18.0-rc1 #1 Tainted: G S        I
[  296.630259] --------------------------------
[  296.634531] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[  296.640535] ksoftirqd/30/188 [HC0[0]:SC1[1]:HE0:SE0] takes:
[  296.646106] ffff888151491468 (&xa->xa_lock#15){+.?.}-{2:2}, at:
rxe_pool_get_index+0x72/0x1d0 [rdma_rxe]
[  296.655588] {SOFTIRQ-ON-W} state was registered at:
[  296.660467]   lock_acquire+0x1d2/0x5a0
[  296.664221]   _raw_spin_lock+0x33/0x80
[  296.667972]   __rxe_add_to_pool+0x183/0x230 [rdma_rxe]
[  296.673112]   __ib_alloc_pd+0xf9/0x550 [ib_core]
[  296.677758]   ib_mad_init_device+0x2d9/0xd20 [ib_core]
[  296.682924]   add_client_context+0x2fa/0x450 [ib_core]
[  296.688088]   enable_device_and_get+0x1b7/0x350 [ib_core]
[  296.693503]   ib_register_device+0x757/0xaf0 [ib_core]
[  296.698660]   rxe_register_device+0x2eb/0x390 [rdma_rxe]
[  296.703973]   rxe_net_add+0x83/0xc0 [rdma_rxe]
[  296.708421]   rxe_newlink+0x76/0x90 [rdma_rxe]
[  296.712865]   nldev_newlink+0x245/0x3e0 [ib_core]
[  296.717597]   rdma_nl_rcv_msg+0x2d4/0x790 [ib_core]
[  296.722492]   rdma_nl_rcv+0x1ca/0x3f0 [ib_core]
[  296.727042]   netlink_unicast+0x43b/0x640
[  296.731056]   netlink_sendmsg+0x7eb/0xc40
[  296.735069]   sock_sendmsg+0xe0/0x110
[  296.738734]   __sys_sendto+0x1d7/0x2b0
[  296.742486]   __x64_sys_sendto+0xdd/0x1b0
[  296.746500]   do_syscall_64+0x37/0x80
[  296.750166]   entry_SYSCALL_64_after_hwframe+0x44/0xae
[  296.755304] irq event stamp: 25305
[  296.758710] hardirqs last  enabled at (25304): [<ffffffff89815de8>]
__local_bh_enable_ip+0xa8/0x110
[  296.767750] hardirqs last disabled at (25305): [<ffffffff8b970219>]
_raw_spin_lock_irqsave+0x69/0x90
[  296.776875] softirqs last  enabled at (25294): [<ffffffff8bc0064a>]
__do_softirq+0x64a/0xa4c
[  296.785307] softirqs last disabled at (25299): [<ffffffff898159f2>]
run_ksoftirqd+0x32/0x60
[  296.793654]
                other info that might help us debug this:
[  296.800177]  Possible unsafe locking scenario:

[  296.806097]        CPU0
[  296.808550]        ----
[  296.811003]   lock(&xa->xa_lock#15);
[  296.814583]   <Interrupt>
[  296.817209]     lock(&xa->xa_lock#15);
[  296.820961]
                 *** DEADLOCK ***

[  296.826880] no locks held by ksoftirqd/30/188.
[  296.831326]
                stack backtrace:
[  296.835686] CPU: 30 PID: 188 Comm: ksoftirqd/30 Tainted: G S
I       5.18.0-rc1 #1
[  296.843859] Hardware name: Dell Inc. PowerEdge R640/06NR82, BIOS
2.11.2 004/21/2021
[  296.851509] Call Trace:
[  296.853964]  <TASK>
[  296.856070]  dump_stack_lvl+0x44/0x57
[  296.859734]  mark_lock.part.52.cold.79+0x3c/0x46
[  296.864355]  ? lock_chain_count+0x20/0x20
[  296.868367]  ? rxe_do_task+0x26/0x230 [rdma_rxe]
[  296.872994]  ? orc_find.part.4+0x310/0x310
[  296.877096]  ? __module_text_address.part.55+0x13/0x140
[  296.882326]  ? rxe_do_task+0x26/0x230 [rdma_rxe]
[  296.886947]  ? rxe_do_task+0x26/0x230 [rdma_rxe]
[  296.891566]  ? is_module_text_address+0x41/0x60
[  296.896098]  ? rxe_do_task+0x26/0x230 [rdma_rxe]
[  296.900718]  ? kernel_text_address+0x13/0xd0
[  296.904991]  ? create_prof_cpu_mask+0x20/0x20
[  296.909351]  ? sched_clock_cpu+0x15/0x200
[  296.913364]  __lock_acquire+0x1565/0x34a0
[  296.917377]  ? rcu_read_lock_sched_held+0xaf/0xe0
[  296.922079]  ? rcu_read_lock_bh_held+0xc0/0xc0
[  296.926529]  lock_acquire+0x1d2/0x5a0
[  296.930193]  ? rxe_pool_get_index+0x72/0x1d0 [rdma_rxe]
[  296.935429]  ? rcu_read_unlock+0x50/0x50
[  296.939353]  ? mark_lock.part.52+0xa3d/0x1c00
[  296.943712]  ? _raw_spin_lock_irqsave+0x69/0x90
[  296.948247]  _raw_spin_lock_irqsave+0x42/0x90
[  296.952603]  ? rxe_pool_get_index+0x72/0x1d0 [rdma_rxe]
[  296.957830]  rxe_pool_get_index+0x72/0x1d0 [rdma_rxe]
[  296.962882]  ? __rxe_add_to_pool+0x230/0x230 [rdma_rxe]
[  296.968108]  ? __rxe_get+0xc1/0x140 [rdma_rxe]
[  296.972554]  rxe_get_av+0x168/0x2a0 [rdma_rxe]
[  296.977007]  ? lockdep_lock+0xcb/0x1c0
[  296.980761]  rxe_requester+0x75b/0x4a90 [rdma_rxe]
[  296.985557]  ? rxe_do_task+0xe2/0x230 [rdma_rxe]
[  296.990183]  ? sched_clock_cpu+0x15/0x200
[  296.994193]  ? find_held_lock+0x3a/0x1c0
[  296.998119]  ? rnr_nak_timer+0x80/0x80 [rdma_rxe]
[  297.002826]  ? lock_release+0x42f/0xc90
[  297.006664]  ? lock_downgrade+0x6b0/0x6b0
[  297.010676]  ? lock_acquired+0x262/0xb10
[  297.014605]  ? __local_bh_enable_ip+0xa8/0x110
[  297.019051]  ? rnr_nak_timer+0x80/0x80 [rdma_rxe]
[  297.023764]  rxe_do_task+0x134/0x230 [rdma_rxe]
[  297.028297]  tasklet_action_common.isra.12+0x1f7/0x2d0
[  297.033435]  __do_softirq+0x1ea/0xa4c
[  297.037100]  ? tasklet_kill+0x1c0/0x1c0
[  297.040941]  run_ksoftirqd+0x32/0x60
[  297.044518]  smpboot_thread_fn+0x503/0x860
[  297.048618]  ? sort_range+0x20/0x20
[  297.052110]  kthread+0x29b/0x340
[  297.055342]  ? kthread_complete_and_exit+0x20/0x20
[  297.060137]  ret_from_fork+0x1f/0x30
[  297.063720]  </TASK>





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