[Qemu-devel] [Bug 1682093] [NEW] aarch64-softmmu "bad ram pointer" crash

[Harry Wagstaff]

Public bug reported:

I am developing a piece of software called SimBench which is a
benchmarking system for full system simulators. I am currently porting
this to aarch64, using QEMU as a test platform.

I have encountered a 'bad ram pointer' crash. I've attempted to build a
minimum test case, but I haven't managed to replicate the behaviour in
isolation, so I've created a branch of my project which exhibits the
crash: https://bitbucket.org/Awesomeclaw/simbench/get/qemu-bug.tar.gz

The package can be compiled using:

make

and then run using:

qemu-system-aarch64  -M virt -m 512 -cpu cortex-a57 -kernel
out/armv8/virt/simbench -nographic

I have replicated the issue in both qemu 2.8.1 and in 2.9.0-rc3, on
Fedora 23. Please let me know if you need any more information or any
logs/core dumps/etc.

** Affects: qemu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1682093

Title:
  aarch64-softmmu "bad ram pointer" crash

Status in QEMU:
  New

Bug description:
  I am developing a piece of software called SimBench which is a
  benchmarking system for full system simulators. I am currently porting
  this to aarch64, using QEMU as a test platform.

  I have encountered a 'bad ram pointer' crash. I've attempted to build
  a minimum test case, but I haven't managed to replicate the behaviour
  in isolation, so I've created a branch of my project which exhibits
  the crash: https://bitbucket.org/Awesomeclaw/simbench/get/qemu-
  bug.tar.gz

  The package can be compiled using:

  make

  and then run using:

  qemu-system-aarch64  -M virt -m 512 -cpu cortex-a57 -kernel
  out/armv8/virt/simbench -nographic

  I have replicated the issue in both qemu 2.8.1 and in 2.9.0-rc3, on
  Fedora 23. Please let me know if you need any more information or any
  logs/core dumps/etc.

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