https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=168298

mar...@sugioarto.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mar...@sugioarto.com

--- Comment #7 from mar...@sugioarto.com ---
Hi,

I would like to confirm that the aio sysctl settings in comment #3 fix crashes
(causing SIGILL in VBoxSDL) and broken guest filesystems on
virtualbox-ose-5.1.14_2 (FreeBSD 11.0). I've tried different guest operating
systems and all fail mostly with HDD problems during initial installation.

I am using simple VDI files, by the way, not any ZVOL and no compression. My
host CPU is a bit slow (AMD  Athlon II X3 460), it is only capable to emulate
32-bit guests.

I've used these sysctl settings (probably still overdimensioned):

vfs.aio.max_aio_queue=8192
vfs.aio.max_aio_queue_per_proc=8192
vfs.aio.max_aio_per_proc=4096
vfs.aio.max_buf_aio=4096

Thank you.

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