Re: Kernel stack read with PTRACE_EVENT_EXIT and io_uring threads

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On Wed, 16 Jun 2021, Michael Schmitz wrote:


Do you happen to know if there is userspace that will run in 
qemu-system-m68k that can be used for testing?

I surmise so. I don't use qemu myself - either ARAnyM, or actual 
hardware. Hardware is limited to 14 MB RAM, which has prevented me from 
using more than simple regression testing. In particular, I can't test 
sys_io_uring_setup there.

Adrian uses qemu a lot, and has supplied disk images to work from on 
occasion. Maybe he's got something recent enough to support 
sys_io_uring_setup ... I've CC:ed him in, as I'd love to do some more 
testing as well.


As well as Debian/m68k, there is also a Gentoo/m68k stage3 rootfs 
available here: 
https://sourceforge.net/projects/linux-mac68k/files/Gentoo%20m68k%20unauthorized/

I built that rootfs last year using Catalyst. Some background (including 
the qemu-system-m68k command-line) can be found here:
https://forums.gentoo.org/viewtopic-t-1100780.html



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