WARNING: at drivers/iommu/dmar.c:845 warn_invalid_dmar.part.10+0x57/0x60

Type:
WARN_ON statement
Class:
warn
Kernel version:
4.12.6
Architecture:
x86_64
Distribution:
Debian
Hardware:
Hewlett-Packard HP Compaq 6830s/30E9, BIOS 68PZD Ver. F.20 12/09/2011
Guilty info:
  • File: drivers/iommu/dmar.c
  • Function: warn_invalid_dmar.part.10
Registers:
  • RIP: 0010
  • RSP: 0000
  • EFLAGS: 00010086
  • RAX: 000000000000007a
  • RBX: 0000000000000000
  • RCX: ffffffffa8e4b548
  • RDX: 0000000000000000
  • RSI: 0000000000000096
  • RDI: 0000000000000046
  • RBP: ffffffffa8c212ba
  • R08: 6e657620534f4942
  • R09: 00000000000000a3
  • R11: 6c776548203a726f
  • R12: ffffffffa9153010
  • R14: ffffffffa8e03e38
  • R15: 000000000000008e
  • GS: ffff8828ffc00000(0000)
  • knlGS: 0000000000000000
  • DS: 0000
  • ES: 0000
  • CR0: 0000000080050033
  • CR2: ffff8828fffff000
  • CR3: 0000000078c09000
  • CR4: 00000000000406b0
Dissassembled code:
  • Code: 93 07 00 bf 01 00 00 00 49 89 c4 e8 74 93 07 00 4d 89 e9 4d 89 e0 48 89 c1 48 89 ea 48 89 de 48 c7 c7 90 be c5 a8 e8 ef f4 ce ff ff 5b 5d 41 5c 41 5d c3 e8 6b ca 1b 00 31 c0 39 d0 7d 55 48
  • All code
  • ========
  • 0: 93 xchg %eax,%ebx
  • 1: 07 (bad)
  • 2: 00 bf 01 00 00 00 add %bh,0x1(%rdi)
  • 8: 49 89 c4 mov %rax,%r12
  • b: e8 74 93 07 00 callq 0x79384
  • 10: 4d 89 e9 mov %r13,%r9
  • 13: 4d 89 e0 mov %r12,%r8
  • 16: 48 89 c1 mov %rax,%rcx
  • 19: 48 89 ea mov %rbp,%rdx
  • 1c: 48 89 de mov %rbx,%rsi
  • 1f: 48 c7 c7 90 be c5 a8 mov $0xffffffffa8c5be90,%rdi
  • 26: e8 ef f4 ce ff callq 0xffffffffffcef51a
  • 2b:* 0f ff (bad) <-- trapping instruction
  • 2d: 5b pop %rbx
  • 2e: 5d pop %rbp
  • 2f: 41 5c pop %r12
  • 31: 41 5d pop %r13
  • 33: c3 retq
  • 34: e8 6b ca 1b 00 callq 0x1bcaa4
  • 39: 31 c0 xor %eax,%eax
  • 3b: 39 d0 cmp %edx,%eax
  • 3d: 7d 55 jge 0x94
  • 3f: 48 rex.W
  • Code starting with the faulting instruction
  • ===========================================
  • 0: 0f ff (bad)
  • 2: 5b pop %rbx
  • 3: 5d pop %rbp
  • 4: 41 5c pop %r12
  • 6: 41 5d pop %r13
  • 8: c3 retq
  • 9: e8 6b ca 1b 00 callq 0x1bca79
  • e: 31 c0 xor %eax,%eax
  • 10: 39 d0 cmp %edx,%eax
  • 12: 7d 55 jge 0x69
  • 14: 48 rex.W
Last seen similar oops:
2017-09-19
Total count:
107 (from 5 unique sources)
Bug found in this kernels too:
4.12.6, 4.12.12

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