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xiaoy1
May 16th, 2025
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  1. [ 235.281405] =============================================================================
  2. [ 235.284170] BUG 9p-fcall-cache (Not tainted): Objects remaining in 9p-fcall-cache on __kmem_cache_shutdown()
  3. [ 235.287395] -----------------------------------------------------------------------------
  4. [ 235.287395]
  5. [ 235.290559] Disabling lock debugging due to kernel taint
  6. [ 235.292362] INFO: Slab 0x000000009c2e9407 objects=3 used=1 fp=0x000000005be4c665 flags=0x100000000010200
  7. [ 235.295492] CPU: 1 PID: 31552 Comm: repro Tainted: G B 5.10.134 #1
  8. [ 235.297929] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
  9. [ 235.300954] Call Trace:
  10. [ 235.301836] dump_stack+0xbc/0xfc
  11. [ 235.302842] slab_err+0xab/0xd3
  12. [ 235.303721] ? sock_ops_convert_ctx_access+0x4a88/0x118b0
  13. [ 235.305126] ? _raw_spin_unlock_irqrestore+0x50/0x50
  14. [ 235.306432] ? __mmu_notifier_subscriptions_destroy+0xc0/0xc0
  15. [ 235.307915] ? on_each_cpu_cond_mask+0x9e/0xb0
  16. [ 235.309115] __kmem_cache_shutdown.cold+0x48/0x1a5
  17. [ 235.310391] kmem_cache_destroy+0x48/0xe0
  18. [ 235.311449] p9_client_destroy+0x17d/0x200
  19. [ 235.312521] ? p9_tag_remove+0x250/0x250
  20. [ 235.313553] ? __kasan_slab_free+0x125/0x150
  21. [ 235.314676] v9fs_session_init+0x67b/0x14d0
  22. [ 235.315784] ? v9fs_show_options+0x7a0/0x7a0
  23. [ 235.316902] ? cred_has_capability.isra.0+0x146/0x2b0
  24. [ 235.318216] ? cred_has_capability.isra.0+0x154/0x2b0
  25. [ 235.319540] ? check_nnp_nosuid.isra.0+0x290/0x290
  26. [ 235.320791] ? kasan_unpoison_shadow+0x34/0x50
  27. [ 235.321980] ? __kasan_kmalloc.constprop.0+0xee/0x100
  28. [ 235.323230] ? kasan_unpoison_shadow+0x34/0x50
  29. [ 235.323906] v9fs_mount+0x7a/0x8c0
  30. [ 235.324485] ? v9fs_drop_inode+0x150/0x150
  31. [ 235.325170] legacy_get_tree+0xf6/0x200
  32. [ 235.325911] vfs_get_tree+0x84/0x2d0
  33. [ 235.326508] path_mount+0x671/0x1d00
  34. [ 235.327087] ? strncpy_from_user+0x1d0/0x2f0
  35. [ 235.327789] ? finish_automount+0x7b0/0x7b0
  36. [ 235.328463] ? getname_flags.part.0+0x1d5/0x4e0
  37. [ 235.329179] ? _copy_from_user+0x9a/0xf0
  38. [ 235.329857] __x64_sys_mount+0x282/0x300
  39. [ 235.330530] ? path_mount+0x1d00/0x1d00
  40. [ 235.331135] ? asm_exc_page_fault+0x8/0x30
  41. [ 235.331796] do_syscall_64+0x33/0x40
  42. [ 235.332384] entry_SYSCALL_64_after_hwframe+0x61/0xc6
  43. [ 235.333174] RIP: 0033:0x7f941b6d2f69
  44. [ 235.333755] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d f7 8e 0d 00 f7 d8 64 89 01 48
  45. [ 235.336681] RSP: 002b:00007f941b5d9e98 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
  46. [ 235.337867] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941b6d2f69
  47. [ 235.339010] RDX: 00002000000000c0 RSI: 0000200000000040 RDI: 0000000000000000
  48. [ 235.340293] RBP: 00007f941b5d9ec0 R08: 0000200000000100 R09: 0000000000000000
  49. [ 235.341413] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffee84ca9ce
  50. [ 235.342587] R13: 00007ffee84ca9cf R14: 00007f941b5d9fc0 R15: 0000000000022000
  51. [ 235.343754] INFO: Object 0x00000000f91a948a @offset=0
  52. [ 235.344574] =============================================================================
  53. [ 235.345855] BUG 9p-fcall-cache (Tainted: G B ): Objects remaining in 9p-fcall-cache on __kmem_cache_shutdown()
  54. [ 235.347661] -----------------------------------------------------------------------------
  55. [ 235.347661]
  56. [ 235.349251] INFO: Slab 0x000000006ccb6886 objects=3 used=1 fp=0x00000000fa6df897 flags=0x100000000010200
  57. [ 235.350766] CPU: 1 PID: 31552 Comm: repro Tainted: G B 5.10.134 #1
  58. [ 235.351925] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
  59. [ 235.353470] Call Trace:
  60. [ 235.353870] dump_stack+0xbc/0xfc
  61. [ 235.354461] slab_err+0xab/0xd3
  62. [ 235.354975] ? sock_ops_convert_ctx_access+0x4a88/0x118b0
  63. [ 235.355856] ? _raw_spin_unlock_irqrestore+0x50/0x50
  64. [ 235.356714] ? __mmu_notifier_subscriptions_destroy+0xc0/0xc0
  65. [ 235.357674] __kmem_cache_shutdown.cold+0x48/0x1a5
  66. [ 235.358432] kmem_cache_destroy+0x48/0xe0
  67. [ 235.359071] p9_client_destroy+0x17d/0x200
  68. [ 235.359787] ? p9_tag_remove+0x250/0x250
  69. [ 235.360427] ? __kasan_slab_free+0x125/0x150
  70. [ 235.361101] v9fs_session_init+0x67b/0x14d0
  71. [ 235.361771] ? v9fs_show_options+0x7a0/0x7a0
  72. [ 235.362501] ? cred_has_capability.isra.0+0x146/0x2b0
  73. [ 235.363314] ? cred_has_capability.isra.0+0x154/0x2b0
  74. [ 235.364115] ? check_nnp_nosuid.isra.0+0x290/0x290
  75. [ 235.364889] ? kasan_unpoison_shadow+0x34/0x50
  76. [ 235.365597] ? __kasan_kmalloc.constprop.0+0xee/0x100
  77. [ 235.366554] ? kasan_unpoison_shadow+0x34/0x50
  78. [ 235.367288] v9fs_mount+0x7a/0x8c0
  79. [ 235.367834] ? v9fs_drop_inode+0x150/0x150
  80. [ 235.368517] legacy_get_tree+0xf6/0x200
  81. [ 235.369137] vfs_get_tree+0x84/0x2d0
  82. [ 235.369725] path_mount+0x671/0x1d00
  83. [ 235.370305] ? strncpy_from_user+0x1d0/0x2f0
  84. [ 235.370983] ? finish_automount+0x7b0/0x7b0
  85. [ 235.371711] ? getname_flags.part.0+0x1d5/0x4e0
  86. [ 235.372447] ? _copy_from_user+0x9a/0xf0
  87. [ 235.373070] __x64_sys_mount+0x282/0x300
  88. [ 235.373696] ? path_mount+0x1d00/0x1d00
  89. [ 235.374321] ? asm_exc_page_fault+0x8/0x30
  90. [ 235.374978] do_syscall_64+0x33/0x40
  91. [ 235.375601] entry_SYSCALL_64_after_hwframe+0x61/0xc6
  92. [ 235.376408] RIP: 0033:0x7f941b6d2f69
  93. [ 235.376980] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d f7 8e 0d 00 f7 d8 64 89 01 48
  94. [ 235.379999] RSP: 002b:00007f941b5d9e98 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
  95. [ 235.381371] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941b6d2f69
  96. [ 235.382497] RDX: 00002000000000c0 RSI: 0000200000000040 RDI: 0000000000000000
  97. [ 235.383639] RBP: 00007f941b5d9ec0 R08: 0000200000000100 R09: 0000000000000000
  98. [ 235.384757] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffee84ca9ce
  99. [ 235.385869] R13: 00007ffee84ca9cf R14: 00007f941b5d9fc0 R15: 0000000000022000
  100. [ 235.387046] INFO: Object 0x00000000d4b7904a @offset=16896
  101. [ 235.387991] kmem_cache_destroy 9p-fcall-cache: Slab cache still has objects
  102. [ 235.389095] CPU: 1 PID: 31552 Comm: repro Tainted: G B 5.10.134 #1
  103. [ 235.390306] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
  104. [ 235.391748] Call Trace:
  105. [ 235.392152] dump_stack+0xbc/0xfc
  106. [ 235.392693] kmem_cache_destroy.cold+0x15/0x1a
  107. [ 235.393404] p9_client_destroy+0x17d/0x200
  108. [ 235.394055] ? p9_tag_remove+0x250/0x250
  109. [ 235.394741] ? __kasan_slab_free+0x125/0x150
  110. [ 235.395440] v9fs_session_init+0x67b/0x14d0
  111. [ 235.396110] ? v9fs_show_options+0x7a0/0x7a0
  112. [ 235.396806] ? cred_has_capability.isra.0+0x146/0x2b0
  113. [ 235.397673] ? cred_has_capability.isra.0+0x154/0x2b0
  114. [ 235.398493] ? check_nnp_nosuid.isra.0+0x290/0x290
  115. [ 235.399309] ? kasan_unpoison_shadow+0x34/0x50
  116. [ 235.400029] ? __kasan_kmalloc.constprop.0+0xee/0x100
  117. [ 235.400903] ? kasan_unpoison_shadow+0x34/0x50
  118. [ 235.401632] v9fs_mount+0x7a/0x8c0
  119. [ 235.402172] ? v9fs_drop_inode+0x150/0x150
  120. [ 235.402833] legacy_get_tree+0xf6/0x200
  121. [ 235.403463] vfs_get_tree+0x84/0x2d0
  122. [ 235.404028] path_mount+0x671/0x1d00
  123. [ 235.404608] ? strncpy_from_user+0x1d0/0x2f0
  124. [ 235.405310] ? finish_automount+0x7b0/0x7b0
  125. [ 235.405984] ? getname_flags.part.0+0x1d5/0x4e0
  126. [ 235.406799] ? _copy_from_user+0x9a/0xf0
  127. [ 235.407501] __x64_sys_mount+0x282/0x300
  128. [ 235.408195] ? path_mount+0x1d00/0x1d00
  129. [ 235.408867] ? asm_exc_page_fault+0x8/0x30
  130. [ 235.409597] do_syscall_64+0x33/0x40
  131. [ 235.410264] entry_SYSCALL_64_after_hwframe+0x61/0xc6
  132. [ 235.411160] RIP: 0033:0x7f941b6d2f69
  133. [ 235.411803] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d f7 8e 0d 00 f7 d8 64 89 01 48
  134. [ 235.415058] RSP: 002b:00007f941b5d9e98 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
  135. [ 235.416399] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941b6d2f69
  136. [ 235.417655] RDX: 00002000000000c0 RSI: 0000200000000040 RDI: 0000000000000000
  137. [ 235.418918] RBP: 00007f941b5d9ec0 R08: 0000200000000100 R09: 0000000000000000
  138. [ 235.420154] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffee84ca9ce
  139. [ 235.421396] R13: 00007ffee84ca9cf R14: 00007f941b5d9fc0 R15: 0000000000022000
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