Re: [Qemu-stable] [PATCH for 1.7] exec: fix breakpoint_invalidate when pc may not be translated

[Max Filippov]

On Mon, Oct 28, 2013 at 4:43 AM, Max Filippov <address@hidden> wrote:
> This fixes qemu abort with the following message:
>
>     include/qemu/int128.h:22: int128_get64: Assertion `!a.hi' failed.
>
> which happens due to attempt to invalidate breakpoint by virtual address
> for which get_phys_page_debug couldn't find mapping.
>
> For more details see
> http://lists.nongnu.org/archive/html/qemu-devel/2013-09/msg04582.html

Ping^2?

> Cc: address@hidden
> Signed-off-by: Max Filippov <address@hidden>
> ---
>  exec.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/exec.c b/exec.c
> index 2e31ffc..9150430 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -409,8 +409,10 @@ static void breakpoint_invalidate(CPUState *cpu, 
> target_ulong pc)
>  #else
>  static void breakpoint_invalidate(CPUState *cpu, target_ulong pc)
>  {
> -    tb_invalidate_phys_addr(cpu_get_phys_page_debug(cpu, pc) |
> -            (pc & ~TARGET_PAGE_MASK));
> +    hwaddr phys = cpu_get_phys_page_debug(cpu, pc);
> +    if (phys != -1) {
> +        tb_invalidate_phys_addr(phys | (pc & ~TARGET_PAGE_MASK));
> +    }
>  }
>  #endif
>  #endif /* TARGET_HAS_ICE */
> --
> 1.8.1.4
>



-- 
Thanks.
-- Max