Messages in this thread | | | Date | Tue, 13 Feb 2018 09:54:29 +0100 | From | Greg KH <> | Subject | Re: [PATCH 00/31 v2] PTI support for x86_32 |
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On Sun, Feb 11, 2018 at 09:40:41AM -0800, Mark D Rustad wrote: > > On Feb 11, 2018, at 2:59 AM, Adam Borowski <kilobyte@angband.pl> wrote: > > > >> Does Debian make it easy to upgrade to a 64-bit kernel if you have a > >> 32-bit install? > > > > Quite easy, yeah. Crossgrading userspace is not for the faint of the heart, > > but changing just the kernel is fine. > > ISTR that iscsi doesn't work when running a 64-bit kernel with a > 32-bit userspace. I remember someone offered kernel patches to fix it, > but I think they were rejected. I haven't messed with that stuff in > many years, so perhaps the userspace side now has accommodation for > it. It might be something to check on.
IPSEC doesn't work with a 64bit kernel and 32bit userspace right now.
Back in 2015 someone started to work on that, and properly marked that the kernel could not handle this with commit 74005991b78a ("xfrm: Do not parse 32bits compiled xfrm netlink msg on 64bits host")
This is starting to be hit by some Android systems that are moving (yeah, slowly) to 4.4 :(
thanks,
greg k-h
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