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Re: [Qemu-devel] [PATCH] vl: take iothread lock very early
From: |
Oliver Francke |
Subject: |
Re: [Qemu-devel] [PATCH] vl: take iothread lock very early |
Date: |
Tue, 3 Mar 2015 19:02:16 +0100 |
Hi,
> Am 03.03.2015 um 18:32 schrieb Paolo Bonzini <address@hidden>:
>
>
>
> On 03/03/2015 18:19, Oliver Francke wrote:
>>
>> #0 __GI_exit (status=1) at exit.c:104
>> #1 0x000055555575cf15 in os_daemonize () at os-posix.c:227
>> #2 0x0000555555773f2e in main (argc=50, argv=0x7fffffffe0d8,
>> envp=0x7fffffffe270) at vl.c:3770
>>
>> compiled with "--enable-debug" and in gdb "b exit". Not a coder, so if
>> this is _not_ sufficient, please give me some adivce ;)
>
> Try removing -daemonize (hmm, that might actually fix the bug). You
> should not need "b exit", because the error is a SIGABRT and gdb stops
> automatically. The fix could be something like this:
>
I can confirm, that un-daemonized the VM works, as well as…
> diff --git a/vl.c b/vl.c
> index e1ffd0a..af61835 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -3759,7 +3759,9 @@ int main(int argc, char **argv, char **envp)
>
> loc_set_none();
>
> + qemu_mutex_unlock_iothread();
> os_daemonize();
> + qemu_mutex_lock_iothread();
>
… after applying these 2 lines.
So thnx very much for the quick help/fix.
Oliver.
> if (qemu_init_main_loop(&main_loop_err)) {
> error_report_err(main_loop_err);
>
> Paolo
- [Qemu-devel] [PATCH] vl: take iothread lock very early, Paolo Bonzini, 2015/03/03
- Re: [Qemu-devel] [PATCH] vl: take iothread lock very early, Christian Borntraeger, 2015/03/03
- Re: [Qemu-devel] [PATCH] vl: take iothread lock very early, Gonglei, 2015/03/03
- Re: [Qemu-devel] [PATCH] vl: take iothread lock very early, Peter Maydell, 2015/03/03
- Re: [Qemu-devel] [PATCH] vl: take iothread lock very early, Oliver Francke, 2015/03/03
- Re: [Qemu-devel] [PATCH] vl: take iothread lock very early, Paolo Bonzini, 2015/03/03
- Re: [Qemu-devel] [PATCH] vl: take iothread lock very early, Oliver Francke, 2015/03/03
- Re: [Qemu-devel] [PATCH] vl: take iothread lock very early, Paolo Bonzini, 2015/03/03
- Re: [Qemu-devel] [PATCH] vl: take iothread lock very early,
Oliver Francke <=
- Re: [Qemu-devel] [PATCH] vl: take iothread lock very early, Christian Borntraeger, 2015/03/04
- Re: [Qemu-devel] [PATCH] vl: take iothread lock very early, Eric Blake, 2015/03/04
- Re: [Qemu-devel] [PATCH] vl: take iothread lock very early, Christian Borntraeger, 2015/03/05