[Bug 1690322] Re: errors which can't backing storage for guest RAM with -mem-path

[Thomas Huth]

** Changed in: qemu
       Status: New => Invalid

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Title:
  errors which can't backing storage for guest RAM with -mem-path

Status in QEMU:
  Invalid

Bug description:
  I found it can't backup the guest RAM when i run simple ram test code
  with

  errors which can't backing storage for guest RAM with integratorcp,
  the commander is:

  qemu-system-arm -M integratorcp -m 1 -semihosting -nographic -mem-path
  mem.txt -kernel build/emu_ram_test.elf

  i wrote the patter "0x55" to all of the rest of RAM in my test, after
  run my test code, it just generate the 1048576 Bytes file, i split
  these file into 2kB, most of split file is black, some of them just
  display \00 after open with gedit.

  i don't know whether my commander is incorrect, anyone can confirm it
  for me? i just want to write the guest RAM and read it from host
  during the guest code is running. but my guest just has simple os
  without file system and network. so i want to try with this backend
  RAM ways.

  thanks.
  js

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