other: 0.933
graphic: 0.919
instruction: 0.915
device: 0.913
vnc: 0.909
semantic: 0.904
socket: 0.902
network: 0.900
KVM: 0.896
assembly: 0.887
boot: 0.873
mistranslation: 0.856

qemu-system-i386: -vnc localhost:0,to=99,id=default: Invalid parameter 'to'

git-bisect pints to:

4db14629c38611061fc19ec6927405923de84f08 is the first bad commit
commit 4db14629c38611061fc19ec6927405923de84f08
Author: Gerd Hoffmann <email address hidden>
Date:   Tue Sep 16 12:33:03 2014 +0200

    vnc: switch to QemuOpts, allow multiple servers
    
    This patch switches vnc over to QemuOpts, and it (more or less
    as side effect) allows multiple vnc server instances.
    
    Signed-off-by: Gerd Hoffmann <email address hidden>

:040000 040000 70020c79b463eaff4b91c8c7f985240d1d1914f0 354a3a125e7b82a1699ce4e0cfc5055662bd3466 M      include
:100644 100644 0b4f131936052ed6062ba4b2b9434da0c2cce959 963305c26917a930f37d916df66b319d6558d281 M      qmp.c
:040000 040000 e7933d52124ae48100893eed8e14cbe46f80b936 30fa5966f5c8362d6db6730a7091bbde7780d4d8 M      ui
:100644 100644 9fb32c13df1c14daf8304184c6503d16bff7afce 983259bc9f7064b446da358a316a31a31731a223 M      vl.c

-vnc 127.0.0.1:0,to=99 is used by Xen

On 01/29/15 07:52, <email address hidden> wrote:
> From: Gonglei <email address hidden>
> 
> Reproducer:
> $ x86_64-softmmu/qemu-system-x86_64
> qemu-system-x86_64: Invalid parameter 'to'
> Segmentation fault (core dumped)
> 

This looks to be a fix for

Subject: [Qemu-devel] [Bug 1414222] [NEW] qemu-system-i386: -vnc

  -Don Slutz


> Patch 1~2 is bugfix, patch 3 is trivial.
> 
> Gonglei (3):
>   vnc: fix qemu crash when not configure vnc option
>   vnc: correct missing property about vnc_display
>   vnc: using bool type instead of int for QEMU_OPT_BOOL
> 
>  ui/vnc.c | 45 +++++++++++++++++++++++++++++++++++++--------
>  1 file changed, 37 insertions(+), 8 deletions(-)
> 



On 2015/1/30 0:10, Don Slutz wrote:

> On 01/29/15 07:52, <email address hidden> wrote:
>> From: Gonglei <email address hidden>
>>
>> Reproducer:
>> $ x86_64-softmmu/qemu-system-x86_64
>> qemu-system-x86_64: Invalid parameter 'to'
>> Segmentation fault (core dumped)
>>
> 
> This looks to be a fix for
> 
> Subject: [Qemu-devel] [Bug 1414222] [NEW] qemu-system-i386: -vnc
> 

Oh, yes. Thanks for your point. I'll add it in commit message :)

Regards,
-Gonglei

>   -Don Slutz
> 
> 
>> Patch 1~2 is bugfix, patch 3 is trivial.
>>
>> Gonglei (3):
>>   vnc: fix qemu crash when not configure vnc option
>>   vnc: correct missing property about vnc_display
>>   vnc: using bool type instead of int for QEMU_OPT_BOOL
>>
>>  ui/vnc.c | 45 +++++++++++++++++++++++++++++++++++++--------
>>  1 file changed, 37 insertions(+), 8 deletions(-)
>>
>