【OLK-5.10】liburing测试用例会导致内核卡死

使用最新OLK-5.10代码测试：
794c1919e741 2023-08-10  (HEAD -> OLK-5.10) !1683 net: hns3: revert some bugfix and backport some patch [openeuler-ci-bot]
报错：

```
[  283.542448] Running test open-direct-pick.t:
[  283.561165] Running test personality.t:
[  283.580048] Running test pipe-bug.t:
[  284.248636] Running test pipe-eof.t:
[  284.268003] Running test pipe-reuse.t:
[  284.286991] Running test poll.t:
[  344.298295] rcu: INFO: rcu_sched self-detected stall on CPU
[  344.304533] rcu: 	15-....: (14999 ticks this GP) idle=5da/1/0x4000000000000002 softirq=2663/2663 fqs=7216 
[  344.314825] 	(t=15004 jiffies g=8681 q=1091)
[  344.314829] NMI backtrace for cpu 15
[  344.314834] CPU: 15 PID: 23066 Comm: poll.t Not tainted 5.10.0+ #298
[  344.314836] Hardware name: LOONGSON Dabieshan T22C08B0/Loongson-LS2C50C2, BIOS Loongson-UDK2018-V4.0.8-Dual 06/09/23 16:13:49
[  344.314838] Stack : 90000001000d7b08 9000000000f41d70 900010008715c000 90000001000d7a40
[  344.314849]         0000000000000000 90000001000d7a40 90000000012e0b20 90000001000d7920
[  344.314855]         0000000000000040 90000000017e93b0 0000000000000071 0000000000000020
[  344.314861]         0000000000000000 0000000000000023 0000000000000001 c0000000ffffdfff
[  344.314868]         383043323254206e 676e6f6f4c2f3042 00000000ffffdfff 0000000000000003
[  344.314874]         0000000000005a1a 0000000008d24000 900000000128d000 00000000000000b0
[  344.314880]         9000000001536488 0000000000000000 90000000012e1000 0000000000000001
[  344.314887]         0000000000000001 90000000010f0758 9000000001447000 9000000001447110
[  344.314893]         0000000000000000 9000000000222e68 000000ffec023010 00000000000000b0
[  344.314899]         0000000000000004 0000000000000000 0000000000071c1c 0000000000000000
[  344.314905]         ...
[  344.314909] Call Trace:
[  344.314917] [<9000000000222e68>] show_stack+0x24/0x124
[  344.314923] [<9000000000f41d70>] dump_stack+0xac/0xe0
[  344.314928] [<900000000092f0d8>] nmi_cpu_backtrace+0xc8/0x118
[  344.314931] [<900000000092f270>] nmi_trigger_cpumask_backtrace+0x148/0x170
[  344.314934] [<9000000000223e90>] arch_trigger_cpumask_backtrace+0x14/0x24
[  344.314939] [<9000000000f3af80>] rcu_dump_cpu_stacks+0x140/0x1b8
[  344.314943] [<90000000002bb778>] print_cpu_stall+0x1a4/0x27c
[  344.314946] [<90000000002bbcd8>] check_cpu_stall+0x118/0x24c
[  344.314948] [<90000000002bbe3c>] rcu_pending+0x30/0xe8
[  344.314951] [<90000000002beef0>] rcu_sched_clock_irq+0x58/0xc4
[  344.314956] [<90000000002c8660>] update_process_times+0x58/0x98
[  344.314961] [<90000000002d8d44>] tick_sched_handle+0x3c/0x5c
[  344.314965] [<90000000002d9080>] tick_sched_timer+0x40/0xa8
[  344.314968] [<90000000002c98d0>] __run_hrtimer.constprop.0+0x78/0x1a4
[  344.314970] [<90000000002c9a94>] __hrtimer_run_queues+0x98/0x10c
[  344.314973] [<90000000002ca064>] hrtimer_interrupt+0x138/0x388
[  344.314976] [<90000000002263c8>] constant_timer_interrupt+0x38/0x48
[  344.314981] [<90000000002a587c>] __handle_irq_event_percpu+0x84/0x184
[  344.314983] [<90000000002a599c>] handle_irq_event_percpu+0x20/0x78
[  344.314987] [<90000000002ac3d0>] handle_percpu_irq+0x54/0x88
[  344.314990] [<90000000002a5074>] __handle_domain_irq+0x64/0xb8
[  344.314993] [<900000000094075c>] handle_cpu_irq+0x78/0xb8
[  344.314997] [<9000000000f57890>] handle_loongarch_irq+0x30/0x48
[  344.315000] [<9000000000f57928>] do_vint+0x80/0xb4
[  344.315005] [<90000000002887e4>] __wake_up_common_lock+0xbc/0x10c
[  344.315010] [<90000000008967f0>] io_req_complete_post+0x14c/0x364
[  344.315013] [<9000000000898b2c>] tctx_task_work+0x100/0x1b4
[  344.315017] [<9000000000259778>] task_work_run+0xc0/0x108
[  344.315021] [<90000000002c3920>] exit_to_user_mode_loop.isra.0+0xd4/0x114
[  344.315024] [<9000000000f57ee8>] syscall_exit_to_user_mode+0x9c/0x134
[  344.315026] [<9000000000f579d8>] do_syscall+0x7c/0x94
[  344.315028] [<9000000000221440>] handle_syscall+0xa0/0x144

[  344.315056] Task dump for CPU 15:
[  344.315058] task:poll.t          state:R  running task     stack:    0 pid:23066 ppid: 23065 flags:0x0020000e
[  344.315063] Stack : 0000000000000000 9000000000f3af8c 900010008715c000 90000001000d7af0
[  344.315069]         9000100089fba900 90000001000d7af0 9000000001288f88 90000001000d7a00
[  344.315075]         0000000000000040 90000000017e9780 0000000000000002 0000000000000030
[  344.315081]         9000100089fba900 0000000000000023 0000000000000001 c0000000ffffdfff
[  344.315087]         617420676e696e6e 7320202020206b73 00000000ffffdfff 0000000000000003
[  344.315094]         0000000000005a19 0000000008d24000 900000000128d000 9000000000f7d200
[  344.315100]         000000000000000f 00000000000000b0 9000000001447238 900000000153f6a8
[  344.315106]         9000000000f7d000 90000000010f0758 9000000001447000 9000000001447110
[  344.315112]         0000000000005a1a 9000000000222e68 000000ffec023010 00000000000000b0
[  344.315119]         0000000000000004 0000000000000000 0000000000071c1c 0000000000000000
[  344.315125]         ...
[  344.315128] Call Trace:
[  344.315130] [<9000000000222e68>] show_stack+0x24/0x124
[  344.315133] [<9000000000f3af8c>] rcu_dump_cpu_stacks+0x14c/0x1b8
[  344.315136] [<90000000002bb778>] print_cpu_stall+0x1a4/0x27c
[  344.315138] [<90000000002bbcd8>] check_cpu_stall+0x118/0x24c
[  344.315140] [<90000000002bbe3c>] rcu_pending+0x30/0xe8
[  344.315143] [<90000000002beef0>] rcu_sched_clock_irq+0x58/0xc4
[  344.315145] [<90000000002c8660>] update_process_times+0x58/0x98
[  344.315148] [<90000000002d8d44>] tick_sched_handle+0x3c/0x5c
[  344.315151] [<90000000002d9080>] tick_sched_timer+0x40/0xa8
[  344.315153] [<90000000002c98d0>] __run_hrtimer.constprop.0+0x78/0x1a4
[  344.315156] [<90000000002c9a94>] __hrtimer_run_queues+0x98/0x10c
[  344.315159] [<90000000002ca064>] hrtimer_interrupt+0x138/0x388
[  344.315161] [<90000000002263c8>] constant_timer_interrupt+0x38/0x48
[  344.315164] [<90000000002a587c>] __handle_irq_event_percpu+0x84/0x184
[  344.315166] [<90000000002a599c>] handle_irq_event_percpu+0x20/0x78
[  344.315168] [<90000000002ac3d0>] handle_percpu_irq+0x54/0x88
[  344.315171] [<90000000002a5074>] __handle_domain_irq+0x64/0xb8
[  344.315174] [<900000000094075c>] handle_cpu_irq+0x78/0xb8
[  344.315176] [<9000000000f57890>] handle_loongarch_irq+0x30/0x48
[  344.315179] [<9000000000f57928>] do_vint+0x80/0xb4
[  344.315181] [<90000000002887e4>] __wake_up_common_lock+0xbc/0x10c
[  344.315184] [<90000000008967f0>] io_req_complete_post+0x14c/0x364
[  344.315186] [<9000000000898b2c>] tctx_task_work+0x100/0x1b4
[  344.315189] [<9000000000259778>] task_work_run+0xc0/0x108
[  344.315192] [<90000000002c3920>] exit_to_user_mode_loop.isra.0+0xd4/0x114
[  344.315194] [<9000000000f57ee8>] syscall_exit_to_user_mode+0x9c/0x134
[  344.315197] [<9000000000f579d8>] do_syscall+0x7c/0x94
[  344.315200] [<9000000000221440>] handle_syscall+0xa0/0x144

[  387.582462] rcu: INFO: rcu_sched detected expedited stalls on CPUs/tasks: { 15-... } 15033 jiffies s: 153 root: 0x1/.
[  387.593740] rcu: blocking rcu_node structures: l=1:0-15:0x8000/.
[  387.600413] Task dump for CPU 15:
[  387.600422] task:poll.t          state:R  running task     stack:    0 pid:23066 ppid: 23065 flags:0x0020000e
[  387.600430] Stack : 0000000000000004 0000000000000001 900000012cd73c10 00000000000000b4
[  387.600446]         900000011ab64700 90000000002887d4 0000000000000000 0000000000000000
[  387.600453]         900000011a41e008 0000000000000000 0000000000000000 0000000000000000
[  387.600460]         0000000000000100 0000000000000122 900000011ab67c90 0000000000000004
[  387.600472]         0000000000000004 900000011a41dff0 900000012cd73b80 900000011ab66580
[  387.600478]         900000011ab64780 900000011ab64700 900000012cd73800 90000000008967f0
[  387.600489]         900010008715fd5f 900000012cd73800 900000011a41e008 0000000000000001
[  387.600496]         900010008715fd5f 900000012cd73800 900000011ab64790 9000000000898b2c
[  387.600508]         90000001278de6c0 0100000000000001 0000000000004000 0000000010000000
[  387.600514]         000000012000be48 000000fffb9bb8b8 ffffffffffffffef 90000000017e5158
[  387.600521]         ...
[  387.600530] Call Trace:
[  387.600542] [<9000000000f5e7ec>] __schedule+0x374/0x6e0

```

嗯，怀疑是缺少补丁，使用6.4可测试通过且dmesg无RCU报错：

```
[root@localhost liburing]# make -j32
make[1]: 进入目录“/root/liburing/src”
make[1]: 对“all”无需做任何事。
make[1]: 离开目录“/root/liburing/src”
make[1]: 进入目录“/root/liburing/test”
make[1]: 对“all”无需做任何事。
make[1]: 离开目录“/root/liburing/test”
make[1]: 进入目录“/root/liburing/examples”
make[1]: 对“all”无需做任何事。
make[1]: 离开目录“/root/liburing/examples”
[root@localhost liburing]# make runtests
make[1]: 进入目录“/root/liburing/src”
make[1]: 对“all”无需做任何事。
make[1]: 离开目录“/root/liburing/src”
make[1]: 进入目录“/root/liburing/test”
make[1]: 对“all”无需做任何事。
make[1]: 离开目录“/root/liburing/test”
make[1]: 进入目录“/root/liburing/examples”
make[1]: 对“all”无需做任何事。
make[1]: 离开目录“/root/liburing/examples”
make[1]: 进入目录“/root/liburing/test”
Running test 232c93d07b74.t                                         4 sec [4]
Running test 35fa71a030ca.t                                         5 sec [5]
Running test 500f9fbadef8.t                                         0 sec [0]
Running test 7ad0e4b2f83c.t                                         1 sec [1]
Running test 8a9973408177.t                                         0 sec [0]
Running test 917257daa0fe.t                                         0 sec [0]
Running test a0908ae19763.t                                         0 sec [0]
Running test a4c0b3decb33.t                                         7 sec [6]
Running test accept.t                                               1 sec
Running test accept-link.t                                          0 sec [1]
Running test accept-reuse.t                                         0 sec [0]
Running test accept-test.t                                          0 sec [0]
Running test across-fork.t                                          0 sec [0]
Running test b19062a56726.t                                         0 sec [0]
Running test b5837bd5311d.t                                         0 sec [0]
Running test buf-ring.t                                             0 sec [0]
Running test ce593a6c480a.t                                         1 sec [1]
Running test close-opath.t                                          0 sec [0]
Running test connect.t                                              0 sec [0]
Running test connect-rep.t                                          0 sec [0]
Running test coredump.t                                             1 sec [0]
Running test cq-full.t                                              0 sec [0]
Running test cq-overflow.t                                          10 sec [10]
Running test cq-peek-batch.t                                        0 sec [0]
Running test cq-ready.t                                             0 sec [0]
Running test cq-size.t                                              0 sec [0]
Running test d4ae271dfaae.t                                         0 sec [0]
Running test d77a67ed5f27.t                                         0 sec [1]
Running test defer.t                                                3 sec [3]
Running test defer-taskrun.t                                        0 sec
Running test double-poll-crash.t                                    Skipped
Running test drop-submit.t                                          0 sec [0]
Running test eeed8b54e0df.t                                         0 sec [0]
Running test empty-eownerdead.t                                     0 sec [0]
Running test eploop.t                                               0 sec [0]
Running test eventfd.t                                              0 sec [0]
Running test eventfd-disable.t                                      0 sec [0]
Running test eventfd-reg.t                                          0 sec [3]
Running test eventfd-ring.t                                         0 sec [0]
Running test evloop.t                                               0 sec [0]
Running test exec-target.t                                          0 sec [0]
Running test exit-no-cleanup.t                                      0 sec [0]
Running test fadvise.t                                              0 sec [0]
Running test fallocate.t                                            0 sec [0]
Running test fc2a85cb02ef.t                                         Test needs failslab/fail_futex/fail_page_alloc enabled, skipped
Skipped
Running test fd-pass.t                                              0 sec
Running test file-register.t                                        3 sec [4]
Running test files-exit-hang-poll.t                                 1 sec [1]
Running test files-exit-hang-timeout.t                              1 sec [1]
Running test file-update.t                                          0 sec [0]
Running test file-verify.t                                          3 sec [3]
Running test fixed-buf-iter.t                                       0 sec [0]
Running test fixed-link.t                                           0 sec [0]
Running test fixed-reuse.t                                          0 sec
Running test fpos.t                                                 1 sec
Running test fsnotify.t                                             0 sec
Running test fsync.t                                                0 sec [0]
Running test hardlink.t                                             0 sec
Running test io-cancel.t                                            2 sec [2]
Running test iopoll.t                                               0 sec [0]
Running test iopoll-leak.t                                          0 sec [0]
Running test iopoll-overflow.t                                      1 sec [1]
Running test io_uring_enter.t                                       0 sec [0]
Running test io_uring_passthrough.t                                 Skipped
Running test io_uring_register.t                                    Unable to map a huge page.  Try increasing /proc/sys/vm/nr_hugepages by at least 1.
Skipping the hugepage test
0 sec [0]
Running test io_uring_setup.t                                       0 sec [0]
Running test lfs-openat.t                                           0 sec [0]
Running test lfs-openat-write.t                                     0 sec [0]
Running test link.t                                                 0 sec [0]
Running test link_drain.t                                           1 sec [0]
Running test link-timeout.t                                         2 sec [2]
Running test madvise.t                                              0 sec [0]
Running test mkdir.t                                                0 sec
Running test msg-ring.t                                             0 sec
Running test msg-ring-flags.t                                       0 sec
Running test msg-ring-overflow.t                                    0 sec
Running test multicqes_drain.t                                      20 sec [10]
Running test nolibc.t                                               Skipped
Running test nop-all-sizes.t                                        0 sec [0]
Running test nop.t                                                  1 sec [0]
Running test openat2.t                                              0 sec [0]
Running test open-close.t                                           0 sec [0]
Running test open-direct-link.t                                     0 sec [0]
Running test open-direct-pick.t                                     0 sec [0]
Running test personality.t                                          0 sec [0]
Running test pipe-bug.t                                             0 sec [1]
Running test pipe-eof.t                                             0 sec [0]
Running test pipe-reuse.t                                           0 sec [0]
Running test poll.t                                                 0 sec
Running test poll-cancel.t                                          0 sec [0]
Running test poll-cancel-all.t                                      0 sec [0]
Running test poll-cancel-ton.t                                      0 sec [0]
Running test poll-link.t                                            0 sec [0]
Running test poll-many.t                                            3 sec [2]
Running test poll-mshot-overflow.t                                  0 sec
Running test poll-mshot-update.t                                    6 sec [2]
Running test poll-race.t                                            1 sec [0]
Running test poll-race-mshot.t                                      1 sec
Running test poll-ring.t                                            0 sec [0]
Running test poll-v-poll.t                                          0 sec [1]
Running test pollfree.t                                             0 sec [0]
Running test probe.t                                                0 sec [0]
Running test read-before-exit.t                                     1 sec [1]
Running test read-write.t                                           1 sec [6]
Running test recv-msgall.t                                          0 sec [0]
Running test recv-msgall-stream.t                                   0 sec
Running test recv-multishot.t                                       0 sec
Running test reg-fd-only.t                                          Skipped
Running test reg-hint.t                                             0 sec
Running test reg-reg-ring.t                                         0 sec
Running test regbuf-merge.t                                         0 sec [0]
Running test register-restrictions.t                                0 sec [1]
Running test rename.t                                               0 sec [0]
Running test ringbuf-read.t                                         0 sec [0]
Running test ring-leak2.t                                           1 sec [1]
Running test ring-leak.t                                            0 sec [0]
Running test rsrc_tags.t                                            0 sec [12]
Running test rw_merge_test.t                                        0 sec [0]
Running test self.t                                                 0 sec [0]
Running test sendmsg_fs_cve.t                                       0 sec [0]
Running test send_recv.t                                            0 sec [0]
Running test send_recvmsg.t                                         0 sec [1]
Running test send-zerocopy.t                                        24 sec
Running test shared-wq.t                                            0 sec [0]
Running test short-read.t                                           0 sec [0]
Running test shutdown.t                                             0 sec [0]
Running test sigfd-deadlock.t                                       0 sec [0]
Running test single-issuer.t                                        0 sec
Running test skip-cqe.t                                             0 sec
Running test socket.t                                               0 sec [0]
Running test socket-io-cmd.t                                        Skipping tests. -ENOTSUP returned
Skipped
Running test socket-rw.t                                            0 sec [0]
Running test socket-rw-eagain.t                                     0 sec [0]
Running test socket-rw-offset.t                                     0 sec [0]
Running test splice.t                                               0 sec [0]
Running test sq-full.t                                              0 sec [0]
Running test sq-full-cpp.t                                          0 sec [0]
Running test sqpoll-cancel-hang.t                                   Skipped
Running test sqpoll-disable-exit.t                                  0 sec [0]
Running test sq-poll-dup.t                                          1 sec [1]
Running test sqpoll-exit-hang.t                                     1 sec [1]
Running test sq-poll-kthread.t                                      2 sec [2]
Running test sq-poll-share.t                                        2 sec [5]
Running test sqpoll-sleep.t                                         0 sec [0]
Running test sq-space_left.t                                        0 sec [0]
Running test stdout.t                                               This is a pipe test
This is a fixed pipe test
0 sec [0]
Running test submit-and-wait.t                                      1 sec [1]
Running test submit-link-fail.t                                     0 sec [0]
Running test submit-reuse.t                                         2 sec [2]
Running test symlink.t                                              0 sec [0]
Running test sync-cancel.t                                          0 sec
Running test teardowns.t                                            0 sec [0]
Running test thread-exit.t                                          0 sec [0]
Running test timeout.t                                              8 sec [6]
Running test timeout-new.t                                          3 sec [2]
Running test tty-write-dpoll.t                                      0 sec [0]
Running test unlink.t                                               0 sec [0]
Running test version.t                                              0 sec [0]
Running test wakeup-hang.t                                          2 sec [2]
Running test xattr.t                                                0 sec [0]
Running test statx.t                                                0 sec [0]
Running test sq-full-cpp.t                                          0 sec [0]
All tests passed
make[1]: 离开目录“/root/liburing/test”
[root@localhost liburing]# uname -a
Linux localhost.localdomain 6.4.0+ #30 SMP PREEMPT Thu Aug 10 19:22:54 CST 2023 loongarch64 loongarch64 loongarch64 GNU/Linux

```

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GVPopenEuler/kernel

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