13.0 RC4 might be delayed

[Guido Falsi]

On 28/03/21 22:34, Guido Falsi via freebsd-current wrote:
> On 27/03/21 06:04, David G Lawrence via freebsd-current wrote:
>>> On Fri, Mar 26, 2021 at 1:01 PM Graham Perrin <grahamperrin at gmail.com>
>>> wrote:
>>>
>>>> On 26/03/2021 03:40, The Doctor via freebsd-current wrote:
>>>>> ??? if people are having issues with ports like ???
>>>>
>>>> If I'm not mistaken:
>>>>
>>>> * 13.0-RC3 seems to be troublesome, as a guest machine, with
>>>> emulators/virtualbox-ose 6.1.18 as the host
>>>>
>>>> * no such trouble with 12.0-RELEASE-p5 as a guest.
>>>>
>>>> I hope to refine the bug report this weekend.
>>>>
>>>
>>> Had nothing but frequent guest lockups on 6.1.18 with my Win7 system. 
>>> That
>>> was right after 6.1.18 was put into ports. Fell back to legacy (v5) and
>>> will try again shortly to see if it's any better.
>>
>> Kevin,
>>
>>     Make sure you have these options in your /etc/sysctl.conf :
>>
>> vfs.aio.max_buf_aio=8192
>> vfs.aio.max_aio_queue_per_proc=65536
>> vfs.aio.max_aio_per_proc=8192
>> vfs.aio.max_aio_queue=65536
>>
>>     ...otherwise the guest I/O will random hang in VirtualBox. This 
>> issue was
>> mitigated in a late 5.x VirtualBox by patching to not use AIO, but the 
>> issue
>> came back in 6.x when that patch wasn't carried forward.
> 
> Sorry I lost that patch. Can you point me to the patch? Maybe it can be 
> easily ported.
> 

I found the relevant commit. Please give me some time for testing and 
I'll put this patch back in the tree.

-- 
Guido Falsi <mad at madpilot.net>