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  1. OK ] Reached target Sockets.
  2. [ OK ] Reached target Basic System.
  3. [ OK ] Started Kernel Logging Service.
  4. [ 25.550898] EEVDF scheduling fail, picking leftmost
  5. [ 25.550935]
  6. [ 25.550940] ======================================================
  7. [ 25.550942] WARNING: possible circular locking dependency detected
  8. [ 25.550946] 6.6.0-rc4-next-20231004-arm64-renesas-gbf7b318a245e-dirty #1164 Not tainted
  9. [ 25.550953] ------------------------------------------------------
  10. [ 25.550955] kworker/u4:3/36 is trying to acquire lock:
  11. [ 25.550963] ffff800081713210 ((console_sem).lock){..-.}-{2:2}, at: down_trylock+0x14/0x40
  12. [ 25.550998]
  13. [ 25.550998] but task is already holding lock:
  14. [ 25.551001] ffff00007fbee298 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0xd0/0xbe0
  15. [ 25.551021]
  16. [ 25.551021] which lock already depends on the new lock.
  17. [ 25.551021]
  18. [ 25.551022]
  19. [ 25.551022] the existing dependency chain (in reverse order) is:
  20. [ 25.551025]
  21. [ 25.551025] -> #2 (&rq->__lock){-.-.}-{2:2}:
  22. [ 25.551034] _raw_spin_lock_nested+0x40/0x54
  23. [ 25.551044] raw_spin_rq_lock_nested+0x20/0x38
  24. [ 25.551057] task_fork_fair+0x38/0xa4
  25. [ 25.551066] sched_cgroup_fork+0xe4/0x144
  26. [ 25.551075] copy_process+0x1224/0x1938
  27. [ 25.551088] kernel_clone+0x88/0x3fc
  28. [ 25.551095] user_mode_thread+0x6c/0x90
  29. [ 25.551103] rest_init+0x24/0x188
  30. [ 25.551111] arch_post_acpi_subsys_init+0x0/0x8
  31. [ 25.551120] start_kernel+0x504/0x5f4
  32. [ 25.551126] __primary_switched+0xb4/0xbc
  33. [ 25.551135]
  34. [ 25.551135] -> #1 (&p->pi_lock){-.-.}-{2:2}:
  35. [ 25.551145] _raw_spin_lock_irqsave+0x5c/0x80
  36. [ 25.551152] try_to_wake_up+0x54/0x4e0
  37. [ 25.551159] wake_up_process+0x14/0x1c
  38. [ 25.551165] __up.isra.0+0x3c/0x44
  39. [ 25.551170] up+0x54/0x6c
  40. [ 25.551175] console_unlock+0x104/0x118
  41. [ 25.551184] vprintk_emit+0x21c/0x388
  42. [ 25.551191] vprintk_default+0x34/0x3c
  43. [ 25.551198] vprintk+0x9c/0xb4
  44. [ 25.551205] _printk+0x58/0x7c
  45. [ 25.551212] regdb_fw_cb+0xc4/0x110
  46. [ 25.551222] request_firmware_work_func+0x48/0x88
  47. [ 25.551231] process_one_work+0x1ec/0x524
  48. [ 25.551240] worker_thread+0x288/0x3f8
  49. [ 25.551247] kthread+0x114/0x118
  50. [ 25.551253] ret_from_fork+0x10/0x20
  51. [ 25.551262]
  52. [ 25.551262] -> #0 ((console_sem).lock){..-.}-{2:2}:
  53. [ 25.551272] __lock_acquire+0x1304/0x20b0
  54. [ 25.551282] lock_acquire+0x1e0/0x310
  55. [ 25.551288] _raw_spin_lock_irqsave+0x5c/0x80
  56. [ 25.551295] down_trylock+0x14/0x40
  57. [ 25.551301] __down_trylock_console_sem+0x34/0xb8
  58. [ 25.551308] console_trylock+0x24/0x74
  59. [ 25.551314] vprintk_emit+0x114/0x388
  60. [ 25.551321] vprintk_default+0x34/0x3c
  61. [ 25.551328] vprintk+0x9c/0xb4
  62. [ 25.551334] _printk+0x58/0x7c
  63. [ 25.551340] pick_next_task_fair+0x274/0x480
  64. [ 25.551348] __schedule+0x154/0xbe0
  65. [ 25.551355] schedule+0x48/0x110
  66. [ 25.551363] worker_thread+0x1b8/0x3f8
  67. [ 25.551369] kthread+0x114/0x118
  68. [ 25.551374] ret_from_fork+0x10/0x20
  69. [ 25.551381]
  70. [ 25.551381] other info that might help us debug this:
  71. [ 25.551381]
  72. [ 25.551384] Chain exists of:
  73. [ 25.551384] (console_sem).lock --> &p->pi_lock --> &rq->__lock
  74. [ 25.551384]
  75. [ 25.551396] Possible unsafe locking scenario:
  76. [ 25.551396]
  77. [ 25.551397] CPU0 CPU1
  78. [ 25.551399] ---- ----
  79. [ 25.551401] lock(&rq->__lock);
  80. [ 25.551406] lock(&p->pi_lock);
  81. [ 25.551411] lock(&rq->__lock);
  82. [ 25.551416] lock((console_sem).lock);
  83. [ 25.551421]
  84. [ 25.551421] *** DEADLOCK ***
  85. [ 25.551421]
  86. [ 25.551423] 1 lock held by kworker/u4:3/36:
  87. [ 25.551428] #0: ffff00007fbee298 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0xd0/0xbe0
  88. [ 25.551446]
  89. [ 25.551446] stack backtrace:
  90. [ 25.551451] CPU: 1 PID: 36 Comm: kworker/u4:3 Not tainted 6.6.0-rc4-next-20231004-arm64-renesas-gbf7b318a245e-dirty #1164
  91. [ 25.551459] Hardware name: Renesas SMARC EVK based on r9a07g054l2 (DT)
  92. [ 25.551474] Workqueue: 0x0 (rpciod)
  93. [ 25.551484] Call trace:
  94. [ 25.551487] dump_backtrace+0x94/0xe8
  95. [ 25.551497] show_stack+0x14/0x1c
  96. [ 25.551505] dump_stack_lvl+0x5c/0xa0
  97. [ 25.551513] dump_stack+0x14/0x1c
  98. [ 25.551520] print_circular_bug+0x288/0x364
  99. [ 25.551528] check_noncircular+0x154/0x168
  100. [ 25.551535] __lock_acquire+0x1304/0x20b0
  101. [ 25.551542] lock_acquire+0x1e0/0x310
  102. [ 25.551548] _raw_spin_lock_irqsave+0x5c/0x80
  103. [ 25.551555] down_trylock+0x14/0x40
  104. [ 25.551560] __down_trylock_console_sem+0x34/0xb8
  105. [ 25.551567] console_trylock+0x24/0x74
  106. [ 25.551574] vprintk_emit+0x114/0x388
  107. [ 25.551581] vprintk_default+0x34/0x3c
  108. [ 25.551588] vprintk+0x9c/0xb4
  109. [ 25.551594] _printk+0x58/0x7c
  110. [ 25.551600] pick_next_task_fair+0x274/0x480
  111. [ 25.551608] __schedule+0x154/0xbe0
  112. [ 25.551616] schedule+0x48/0x110
  113. [ 25.551623] worker_thread+0x1b8/0x3f8
  114. [ 25.551630] kthread+0x114/0x118
  115. [ 25.551635] ret_from_fork+0x10/0x20
  116. [ OK ] Started System Logging Service.
  117. [ 26.099203] EEVDF scheduling fail, picking leftmost
  118. [ OK ] Started D-Bus System Message Bus.
  119. Starting IPv6 Packet Filtering[ 26.201031] EEVDF scheduling fail, picking leftmost
  120. Framework...
  121. Starting IPv4 Packet Filtering Framework...
  122. Starting Telephony service...
  123. [ OK ] Started optee services.
  124. Starting Login Service...
  125. [ OK ] Started VIN initializing setting.
  126. [ 26.571075] EEVDF scheduling fail, picking leftmost
  127. [ 26.575989] EEVDF scheduling fail, picking leftmost
  128. [ OK ] Started WatchdogTimer.
  129. [ OK ] Started IPv6 Packet Filtering Framework.
  130. [ OK ] Started IPv4 Packet Filtering Framework.
  131. [ OK ] Reached target Network (Pre).
  132. Starting Connection service...
  133. Starting Network Service...
  134. [ OK ] Started Telephony service.
  135. [ OK ] Reached target Hardware activated USB gadget.
  136. [ 27.852648] EEVDF scheduling fail, picking leftmost
  137. [ 27.852685] EEVDF scheduling fail, picking leftmost
  138. [ 27.858353] EEVDF scheduling fail, picking leftmost
  139. [ 27.858595] EEVDF scheduling fail, picking leftmost
  140. [ 28.096955] EEVDF scheduling fail, picking leftmost
  141. [ 28.134053] EEVDF scheduling fail, picking leftmost
  142. [ 28.134390] EEVDF scheduling fail, picking leftmost
  143. [ 28.134504] EEVDF scheduling fail, picking leftmost
  144. Starting Save/Restore Sound Card State...
  145. [ 28.273687] Microchip KSZ9131 Gigabit PHY 11c30000.ethernet-ffffffff:07: attached PHY driver (mii_bus:phy_addr=11c30000.ethernet-ffffffff:07, irq=56)
  146. [ OK ] Started Save/Restore Sound Card State.
  147. [ OK ] Started Connection service.
  148. [ 28.376936] EEVDF scheduling fail, picking leftmost
  149. [ 28.381859] EEVDF scheduling fail, picking leftmost
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