Kdump kernel (the 2nd kernel) sometimes hungs up.

Solution Verified - Updated -


  • This problem occurs once every 15 times when vmcore is gathered on PRIMEQUEST 1800E.

  • And, the environment in which this problem occurs uses "Legacy Boot"  (conventional BIOS) to avoid another problem.

  • At present, this problem has not been reproduced on other machines.

  • Additionally, the phenomena occurred so far only on Intel64. I have not confirmed whether this phenomena occurs on x86.
  • Here's log

     processor LNXCPU:54: registered as cooling_device16
     processor LNXCPU:55: registered as cooling_device17
     processor LNXCPU:57: registered as cooling_device18
     processor LNXCPU:58: registered as cooling_device19
     BIOS reported wrong ACPI id for the processor
     processor LNXCPU:5b: registered as cooling_device20
     processor LNXCPU:5c: registered as cooling_device21
     processor LNXCPU:5d: registered as cooling_device22
     processor LNXCPU:5f: registered as cooling_device23
     xen-platform-pci: failed Xen IOPORT backend handshake: unrecognised magic value
     Non-volatile memory driver v1.3
     Linux agpgart interface v0.103
     crash memory driver: version 1.0
     Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
     erial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
     serial8250: ttyS1 at I/O 0x2f8 (irq = 0) is a 16550A
     00:02: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
     brd: module loaded
  • The above-mentioned message is displayed and the system hangs up. And the last message displayed before hang-up differs each time the problem occurs.


  • Red Hat Enterprise Linux 6.0 Beta 2

  • x86_64

  • 2.6.32-37.el6.x86_64
  • This phenomena has so far occurred only on PRIMEQUEST 1800E.

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