[Qemu-devel] [Bug 1331932] Re: qemu crash in x86 reload

[Paolo Bonzini]

You are using QEMU 1.3.0 or older, since that's the last release that
used qemu_bh_delete in qemu_chr_be_generic_open_bh.

Please upgrade to a newer release, thanks!

** Changed in: qemu
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1331932

Title:
  qemu crash in x86 reload

Status in QEMU:
  Fix Released

Bug description:
  Hi all,


  I am running qemu on an x86 host and when the host reloaded we do see
  a core on Qemu and the gdb dump shows as follows.

  Can any one please let me know if any one has come across such
  failures.

  rning: Can't read pathname for load map: Input/output error.

  Core was generated by `/usr/bin/qemu-system-x86_64 -name default-sdr--
  2 -S -M pc_q35 -enable-kvm -m 61'.

  Program terminated with signal 11, Segmentation fault.

  #0  0x000000000049c976 in qemu_bh_delete (bh=0x31) at /auto
  /thirdparty-sdk/release/235/thirdparty/opensource/qemu-
  kvm/contents/async.c:193

  193         bh->scheduled = 0;

  (gdb) bt

  #0  0x000000000049c976 in qemu_bh_delete (bh=0x31)

      at /auto/thirdparty-sdk/release/235/thirdparty/opensource/qemu-
  kvm/contents/async.c:193

  #1  0x00000000004c50a3 in qemu_chr_generic_open_bh (opaque=0xdc1f670)

      at /auto/thirdparty-sdk/release/235/thirdparty/opensource/qemu-
  kvm/contents/qemu-char.c:130

  #2  0x000000000049c7e4 in qemu_bh_poll ()

      at /auto/thirdparty-sdk/release/235/thirdparty/opensource/qemu-
  kvm/contents/async.c:150

  #3  0x000000000042017d in main_loop_wait (nonblocking=0)

      at /auto/thirdparty-sdk/release/235/thirdparty/opensource/qemu-
  kvm/contents/vl.c:1384

  #4  0x000000000043bae5 in kvm_main_loop ()

      at /auto/thirdparty-sdk/release/235/thirdparty/opensource/qemu-
  kvm/contents/qemu-kvm.c:1710

  #5  0x0000000000420237 in main_loop ()

      at /auto/thirdparty-sdk/release/235/thirdparty/opensource/qemu-
  kvm/contents/vl.c:1408

  #6  0x0000000000423bf4 in main (argc=67, argv=0x7fffc1ec48a8,
  envp=0x7fffc1ec4ac8)

      at /auto/thirdparty-sdk/release/235/thirdparty/opensource/qemu-
  kvm/contents/vl.c:3159



  Regards,

  sistla.

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