Re: 回复: [PATCH] mem-prealloc: initialize cond and mutex(Internet mail)

[Christian Borntraeger]

On 06.03.20 10:57, bauerchen(陈蒙蒙) wrote:
> Very sorry for my fault, in fact,I test  in a old qemu version ,and patch 
> generated based a new one ; 
> All in all，its my fault, and I will check and test patch carefully In the 
> future
> If I  need to  submit the patch again ?


Can you test and review my fixup? That will help Paolo to take my fix.



> 发件人： Christian Borntraeger
> 发送时间： 2020-03-06 16:50
> 收件人： qemu-devel
> 抄送： qemu-s390x; Christian Borntraeger; bauerchen(陈蒙蒙); Paolo Bonzini; Marc 
> Hartmayer
> 主题： [PATCH] mem-prealloc: initialize cond and mutex(Internet mail)
> Guests with mem-prealloc do fail with
> qemu-system-s390x: /home/cborntra/REPOS/qemu/util/qemu-thread-posix.c:76: 
> qemu_mutex_lock_impl: Assertion `mutex->initialized' failed.
> qemu-system-s390x: /home/cborntra/REPOS/qemu/util/qemu-thread-posix.c:161: 
> qemu_cond_broadcast: Assertion `cond->initialized' failed.
>  
> Let us initialize cond and mutex.
>  
> Cc: bauerchen <address@hidden>
> Cc: Paolo Bonzini <address@hidden>
> Reported-by: Marc Hartmayer <address@hidden>
> Fixes: 037fb5eb3941 ("mem-prealloc: optimize large guest startup")
> Signed-off-by: Christian Borntraeger <address@hidden>
> ---
> util/oslib-posix.c | 2 ++
> 1 file changed, 2 insertions(+)
>  
> diff --git a/util/oslib-posix.c b/util/oslib-posix.c
> index 897e8f3ba6..52650183d3 100644
> --- a/util/oslib-posix.c
> +++ b/util/oslib-posix.c
> @@ -470,6 +470,8 @@ static bool touch_all_pages(char *area, size_t hpagesize, 
> size_t numpages,
>      char *addr = area;
>      int i = 0;
> +    qemu_cond_init(&page_cond);
> +    qemu_mutex_init(&page_mutex);
>      memset_thread_failed = false;
>      threads_created_flag = false;
>      memset_num_threads = get_memset_num_threads(smp_cpus);
> --
> 2.25.0
>  
>  
>