[Qemu-devel] [Bug 1762179] Re: Record and replay replay fails with: "ERROR:replay/replay-time.c:49:replay_read_clock: assertion failed"

[Ciro Santilli 六四事件 法轮功]

** Description changed:

  QEMU master at 915d34c5f99b0ab91517c69f54272bfdb6ca2b32 Ubuntu 17.10
  host.
  
  QEMU commands:
  
  ```
  #!/usr/bin/env bash
  cmd="\
  time \
  ./x86_64-softmmu/qemu-system-x86_64 \
  -append 'root=/dev/sda console=ttyS0 nokaslr printk.time=y - 
lkmc_eval=\"/rand_check.out;/sbin/ifup -a;wget -S google.com;/poweroff.out;\"' \
  -kernel 'out/x86_64/buildroot/images/bzImage' \
  -nographic \
  \
  -drive 
file=out/x86_64/buildroot/images/rootfs.ext2.qcow2,if=none,id=img-direct,format=qcow2
 \
  -drive driver=blkreplay,if=none,image=img-direct,id=img-blkreplay \
  -device ide-hd,drive=img-blkreplay \
  \
  -netdev user,id=net1 \
  -device rtl8139,netdev=net1 \
  -object filter-replay,id=replay,netdev=net1 \
  "
  echo "$cmd"
  eval "$cmd -icount 'shift=7,rr=record,rrfile=replay.bin'"
  eval "$cmd -icount 'shift=7,rr=replay,rrfile=replay.bin'"
  ```
  
  This tries to stay as close as possible to the documented commands:
  
https://github.com/qemu/qemu/blob/08e173f29461396575c85510eb41474b993cb1fb/docs/replay.txt#L28
  
  Images uploaded to: https://github.com/cirosantilli/linux-kernel-module-
  cheat/releases/download/test-replay-arm/images4.zip
  
  Images generated with: https://github.com/cirosantilli/linux-kernel-
  module-cheat/tree/9513c162ef57e6cb70006dfe870856f94ee9a133
  
  The replay failed straight out with:
  
  ```
  ERROR:replay/replay-time.c:49:replay_read_clock: assertion failed: 
(replay_file && replay_mutex_locked())
  ```
  
  QEMU configure:
  
  ```
- ./configure --enable-debug --enable-trace-backends=simple 
--target-list="x86_64-softmmu"
+ ./configure --enable-debug --enable-trace-backends=simple 
--target-list=x86_64-softmmu
  ```

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https://bugs.launchpad.net/bugs/1762179

Title:
  Record and replay replay fails with: "ERROR:replay/replay-
  time.c:49:replay_read_clock: assertion failed"

Status in QEMU:
  New

Bug description:
  QEMU master at 915d34c5f99b0ab91517c69f54272bfdb6ca2b32 Ubuntu 17.10
  host.

  QEMU commands:

  ```
  #!/usr/bin/env bash
  cmd="\
  time \
  ./x86_64-softmmu/qemu-system-x86_64 \
  -append 'root=/dev/sda console=ttyS0 nokaslr printk.time=y - 
lkmc_eval=\"/rand_check.out;/sbin/ifup -a;wget -S google.com;/poweroff.out;\"' \
  -kernel 'out/x86_64/buildroot/images/bzImage' \
  -nographic \
  \
  -drive 
file=out/x86_64/buildroot/images/rootfs.ext2.qcow2,if=none,id=img-direct,format=qcow2
 \
  -drive driver=blkreplay,if=none,image=img-direct,id=img-blkreplay \
  -device ide-hd,drive=img-blkreplay \
  \
  -netdev user,id=net1 \
  -device rtl8139,netdev=net1 \
  -object filter-replay,id=replay,netdev=net1 \
  "
  echo "$cmd"
  eval "$cmd -icount 'shift=7,rr=record,rrfile=replay.bin'"
  eval "$cmd -icount 'shift=7,rr=replay,rrfile=replay.bin'"
  ```

  This tries to stay as close as possible to the documented commands:
  
https://github.com/qemu/qemu/blob/08e173f29461396575c85510eb41474b993cb1fb/docs/replay.txt#L28

  Images uploaded to: https://github.com/cirosantilli/linux-kernel-
  module-cheat/releases/download/test-replay-arm/images4.zip

  Images generated with: https://github.com/cirosantilli/linux-kernel-
  module-cheat/tree/9513c162ef57e6cb70006dfe870856f94ee9a133

  The replay failed straight out with:

  ```
  ERROR:replay/replay-time.c:49:replay_read_clock: assertion failed: 
(replay_file && replay_mutex_locked())
  ```

  QEMU configure:

  ```
  ./configure --enable-debug --enable-trace-backends=simple 
--target-list=x86_64-softmmu
  ```

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