Re: [Qemu-devel] sigsegv in chardev on iotest 045 (raw)

[John Snow <jsnow@redhat.com>]

On 6/5/19 12:22 PM, Max Reitz wrote:
> On 05.06.19 03:15, John Snow wrote:
>> Running tests on a development branch (I haven't touched chardev stuff,
>> I swear!); I ran into the below crash where s->ioc was NULL. I don't
>> have the time to investigate at this exact moment, so please excuse the
>> hasty report so I don't forget to tell someone.
>>
>> It does not reproduce consistently, and I can't get it to show up again.
>>
>> (Is this maybe just a race on close where the device went away too fast
>> and it had nowhere to print the information? --js)
> 
> Your back trace looks exactly like what I posted in
> http://lists.nongnu.org/archive/html/qemu-devel/2018-12/msg05579.html .
> 

I was going to say "Apologies for having missed this," but it's from
2018. I feel less guilty.

...Oh, it's been busted for a while...

> No, I don’t think anybody has posted a fix for this so far.  I know
> other people saw similar issues.
> 
> I know what I have on my test branch (which contains various fixes to
> make all iotests run or at least pass those which are terminally broken):
> 
> https://git.xanclic.moe/XanClic/qemu/commit/c52433f218c61ef608ab4d9abb56e1f705a3ae22
> 
> I have a lot of patches on my test branch.  (15, to be exact.)
> 
> Max
> 

Oh, okay, no fix; but you do have a hack workaround. OK, thanks!

--js