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xiaoy1
May 15th, 2025
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  1. [ 201.627559] INFO: rcu_tasks_trace detected stalls on tasks:
  2. [ 201.628403] P23303: .... nesting: 0C cpu: 0
  3. [ 201.628962] task:syz-executor.4 state:R running task stack:27576 pid:23303 tgid:23302 ppid:20429 task_flags:0x40054c flags:0x00004002
  4. [ 201.630588] Call Trace:
  5. [ 201.631165] <TASK>
  6. [ 201.631453] __schedule+0xca2/0x2410
  7. [ 201.632071] ? __pfx___schedule+0x10/0x10
  8. [ 201.633066] ? proc_exit_connector+0x32d/0x3e0
  9. [ 201.633972] ? _raw_spin_lock_irqsave+0x86/0xe0
  10. [ 201.634800] ? __pfx__raw_spin_lock_irqsave+0x10/0x10
  11. [ 201.636060] do_task_dead+0x9d/0xc0
  12. [ 201.636526] do_exit+0x18c2/0x28a0
  13. [ 201.636950] ? __pfx__raw_spin_lock_irqsave+0x10/0x10
  14. [ 201.637803] ? __pfx_do_exit+0x10/0x10
  15. [ 201.638392] ? _raw_spin_lock_irq+0x81/0xe0
  16. [ 201.639411] do_group_exit+0xc7/0x280
  17. [ 201.639886] get_signal+0x1d94/0x1f70
  18. [ 201.640339] ? put_task_stack+0xd2/0x240
  19. [ 201.640999] ? finish_task_switch.isra.0+0x4aa/0x650
  20. [ 201.641796] ? __pfx_get_signal+0x10/0x10
  21. [ 201.642282] ? __schedule+0xcaa/0x2410
  22. [ 201.642744] arch_do_signal_or_restart+0x81/0x780
  23. [ 201.643306] ? __pfx_arch_do_signal_or_restart+0x10/0x10
  24. [ 201.644134] ? __x64_sys_futex+0x1ca/0x480
  25. [ 201.644842] ? __x64_sys_futex+0x1d3/0x480
  26. [ 201.645339] ? fput+0x8b/0x410
  27. [ 201.645920] ? __pfx___x64_sys_futex+0x10/0x10
  28. [ 201.646458] syscall_exit_to_user_mode+0xc0/0x140
  29. [ 201.647057] do_syscall_64+0xb3/0x1a0
  30. [ 201.647257] netlink: 'syz-executor.7': attribute type 5 has an invalid length.
  31. [ 201.647521] entry_SYSCALL_64_after_hwframe+0x77/0x7f
  32. [ 201.648391] netlink: 48 bytes leftover after parsing attributes in process `syz-executor.7'.
  33. [ 201.648985] RIP: 0033:0x7f7ccf4eb1a9
  34. [ 201.650687] RSP: 002b:00007f7cce807178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
  35. [ 201.652580] RAX: 0000000000000001 RBX: 00007f7ccf6bbf88 RCX: 00007f7ccf4eb1a9
  36. [ 201.653652] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f7ccf6bbf8c
  37. [ 201.655069] RBP: 00007f7ccf6bbf80 R08: 00007f7cd01f5000 R09: 00007f7cce8076c0
  38. [ 201.656547] R10: 0000000000000020 R11: 0000000000000246 R12: 00007f7ccf6bbf8c
  39. [ 201.656559] R13: 000000000000000b R14: 00007ffe9a6775c0 R15: 00007ffe9a6776a8
  40. [ 201.656574] </TASK>
  41. [ 201.668185] INFO: rcu_tasks_trace detected stalls? (Late IPI?)
  42. [ 201.687763] INFO: rcu_tasks_trace detected stalls? (Late IPI?)
  43. [ 201.703015] loop6: detected capacity change from 0 to 2048
  44. [ 201.706162] SELinux: security_context_str_to_sid (unconfined_u) failed with errno=-22
  45. [ 201.706362] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow
  46. [ 201.711990] EXT4-fs (loop6): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
  47. [ 201.831001] EXT4-fs error (device loop6): ext4_validate_block_bitmap:440: comm syz-executor.6: bg 0: block 234: padding at end of block bitmap is not set
  48. [ 201.833335] EXT4-fs (loop6): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 2048 with error 28
  49. [ 201.834928] EXT4-fs (loop6): This should not happen!! Data will be lost
  50. [ 201.834928]
  51. [ 201.836106] EXT4-fs (loop6): Total free blocks count 0
  52. [ 201.836734] EXT4-fs (loop6): Free/Dirty block details
  53. [ 201.837349] EXT4-fs (loop6): free_blocks=0
  54. [ 201.837949] EXT4-fs (loop6): dirty_blocks=8192
  55. [ 201.838644] EXT4-fs (loop6): Block reservation details
  56. [ 201.839397] EXT4-fs (loop6): i_reserved_data_blocks=512
  57. [ 201.872068] EXT4-fs (loop6): Delayed block allocation failed for inode 18 at logical offset 2050 with max blocks 2048 with error 28
  58.  
  59. VM DIAGNOSIS:
  60. 00:56:25 Registers:
  61. info registers vcpu 0
  62.  
  63. CPU#0
  64. RAX=ffffc90000840000 RBX=ffff88810430c000 RCX=ffffffff8150e881 RDX=1ffff110208619cd
  65. RSI=ffffffff832ececf RDI=000000000000000a RBP=0000000000000003 RSP=ffff88811b009ec8
  66. R8 =0000000000000001 R9 =ffffed10236013e5 R10=0000000000000000 R11=ffff88811b009ff8
  67. R12=dffffc0000000000 R13=0000000000000000 R14=ffff88810430ce68 R15=ffff88810017d8a4
  68. RIP=ffffffff832ecef7 RFL=00000046 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=0
  69. ES =0000 0000000000000000 00000000 00000000
  70. CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
  71. SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA]
  72. DS =0000 0000000000000000 00000000 00000000
  73. FS =0000 0000555585230480 00000000 00000000
  74. GS =0000 ffff88811b000000 00000000 00000000
  75. LDT=0000 fffffe0000000000 00000000 00000000
  76. TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy
  77. GDT= fffffe0000001000 0000007f
  78. IDT= fffffe0000000000 00000fff
  79. CR0=80050033 CR2=0000000020000050 CR3=0000000070626000 CR4=00350ef0
  80. DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
  81. DR6=00000000ffff0ff0 DR7=0000000000000600
  82. EFER=0000000000000d01
  83. FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
  84. FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
  85. FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
  86. FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
  87. FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
  88. YMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  89. YMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  90. YMM02=0000000000000000 0000000000000000 ff00000000000000 0000000000000000
  91. YMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  92. YMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  93. YMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  94. YMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  95. YMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  96. YMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  97. YMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  98. YMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  99. YMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  100. YMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  101. YMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  102. YMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  103. YMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  104. info registers vcpu 1
  105.  
  106. CPU#1
  107. RAX=0000000000000000 RBX=0000000040000001 RCX=ffffffff8139c827 RDX=ffff888109f86600
  108. RSI=ffffffff8139c838 RDI=0000000000000005 RBP=00000000ffffffff RSP=ffff88810d19fcf0
  109. R8 =1ffff11021a33ff9 R9 =0000000000000000 R10=00000000ffffffff R11=0000000000000000
  110. R12=1ffff11021a33f9f R13=00007ffc4c9fabec R14=0000000000000000 R15=0000000000000000
  111. RIP=ffffffff816ac628 RFL=00000206 [-----P-] CPL=0 II=0 A20=1 SMM=0 HLT=0
  112. ES =0000 0000000000000000 00000000 00000000
  113. CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
  114. SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA]
  115. DS =0000 0000000000000000 00000000 00000000
  116. FS =0000 000055555d5ef480 00000000 00000000
  117. GS =0000 ffff88811b080000 00000000 00000000
  118. LDT=0000 ffff888100000000 00000000 00000000
  119. TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy
  120. GDT= fffffe0000048000 0000007f
  121. IDT= fffffe0000000000 00000fff
  122. CR0=80050033 CR2=00007ff11d7156c6 CR3=0000000102f56000 CR4=00350ef0
  123. DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
  124. DR6=00000000ffff0ff0 DR7=0000000000000400
  125. EFER=0000000000000d01
  126. FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
  127. FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
  128. FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
  129. FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
  130. FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
  131. YMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  132. YMM01=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff
  133. YMM02=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff
  134. YMM03=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff
  135. YMM04=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff
  136. YMM05=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff
  137. YMM06=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff
  138. YMM07=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff
  139. YMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  140. YMM09=0000000000000000 0000000000000000 0000000000000000 00007f26cfe353a7
  141. YMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  142. YMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  143. YMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  144. YMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  145. YMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  146. YMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  147. info registers vcpu 2
  148.  
  149. CPU#2
  150. RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8
  151. RSI=ffffffff826be205 RDI=ffffffff86f94b08 RBP=ffffffff86f94b00 RSP=ffff8881002bf478
  152. R8 =0000000000000000 R9 =ffffed102060181e R10=0000000000000020 R11=6637303030302052
  153. R12=0000000000000020 R13=dffffc0000000000 R14=0000000000000010 R15=ffffffff86f94b00
  154. RIP=ffffffff826be25d RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
  155. ES =0000 0000000000000000 00000000 00000000
  156. CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
  157. SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA]
  158. DS =0000 0000000000000000 00000000 00000000
  159. FS =0000 0000000000000000 00000000 00000000
  160. GS =0000 ffff88811b100000 00000000 00000000
  161. LDT=0000 ffff888100000000 00000000 00000000
  162. TR =0040 fffffe0000091000 00004087 00008b00 DPL=0 TSS64-busy
  163. GDT= fffffe000008f000 0000007f
  164. IDT= fffffe0000000000 00000fff
  165. CR0=80050033 CR2=00007f26d0a856c6 CR3=000000000546a000 CR4=00350ef0
  166. DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
  167. DR6=00000000ffff0ff0 DR7=0000000000000400
  168. EFER=0000000000000d01
  169. FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
  170. FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
  171. FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
  172. FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
  173. FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
  174. YMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  175. YMM01=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff
  176. YMM02=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff
  177. YMM03=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff
  178. YMM04=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff
  179. YMM05=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff
  180. YMM06=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff
  181. YMM07=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff
  182. YMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  183. YMM09=0000000000000000 0000000000000000 0000000000000000 00007ff11cac53a7
  184. YMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  185. YMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  186. YMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  187. YMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  188. YMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  189. YMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  190. info registers vcpu 3
  191.  
  192. CPU#3
  193. RAX=0000000000000035 RBX=1ffff1102139bec9 RCX=ffffffff81e28b1f RDX=ffffed100abc0242
  194. RSI=0000000000000004 RDI=ffff888055e0120c RBP=ffff8881045a7000 RSP=ffff888109cdf608
  195. R8 =0000000000000001 R9 =ffffed100abc0241 R10=ffff888055e0120f R11=0000000000000003
  196. R12=0000000000000003 R13=ffff888055e01180 R14=0000000000000000 R15=0000000000000000
  197. RIP=ffffffff81e28b2b RFL=00000202 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
  198. ES =0000 0000000000000000 00000000 00000000
  199. CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
  200. SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA]
  201. DS =0000 0000000000000000 00000000 00000000
  202. FS =0000 00007f47753676c0 00000000 00000000
  203. GS =0000 ffff88811b180000 00000000 00000000
  204. LDT=0000 ffff888100000000 00000000 00000000
  205. TR =0040 fffffe00000d8000 00004087 00008b00 DPL=0 TSS64-busy
  206. GDT= fffffe00000d6000 0000007f
  207. IDT= fffffe0000000000 00000fff
  208. CR0=80050033 CR2=0000000000000000 CR3=000000010d064000 CR4=00350ef0
  209. DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
  210. DR6=00000000ffff0ff0 DR7=0000000000000400
  211. EFER=0000000000000d01
  212. FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001fa0
  213. FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
  214. FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
  215. FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
  216. FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
  217. YMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  218. YMM01=0000000000000000 0000000000000000 cd87be07cd87be07 cd87be07cd87be07
  219. YMM02=0000000000000000 0000000000000000 c9a56117c9a56117 c9a56117c9a56117
  220. YMM03=0000000000000000 0000000000000000 6b118a6c6b118a6c 6b118a6c6b118a6c
  221. YMM04=0000000000000000 0000000000000000 7677060a8aab05ae 115a33574be6019e
  222. YMM05=0000000000000000 0000000000000000 0a875039d7733fa4 9f5405dca49fc94a
  223. YMM06=0000000000000000 0000000000000000 3fb39946c13efc57 be3e83a4bb1e187a
  224. YMM07=0000000000000000 0000000000000000 a8effc85dc7ea302 2e5ba8212b41c65c
  225. YMM08=0000000000000000 0000000000000000 f2fab37d9422c6e5 aa4946de48213a15
  226. YMM09=0000000000000000 0000000000000000 d1d50812d0bdccfe 7f93f4c01ba8ecb4
  227. YMM10=0000000000000000 0000000000000000 16d27a3ba42ec9f0 83643a78f675346a
  228. YMM11=0000000000000000 0000000000000000 0fe35047c53825f7 074dd6fe6db7aaf3
  229. YMM12=0000000000000000 0000000000000000 cf85008dcf85008d cf85008dcf85008d
  230. YMM13=0000000000000000 0000000000000000 57e2c7c557e2c7c5 57e2c7c557e2c7c5
  231. YMM14=0000000000000000 0000000000000000 c5aa375ec5aa375e c5aa375ec5aa375e
  232. YMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000
  233.  
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