Messages in this thread | | | Date | Wed, 15 Mar 2023 13:24:41 +0100 | Subject | Re: [RFC 00/12] module: avoid userspace pressure on unwanted allocations | From | David Hildenbrand <> |
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On 11.03.23 06:17, Luis Chamberlain wrote: > A long time ago we had some issues with userspace doing stupid stuff. > Well, it turns out even the kernel and do stupid stuff too, as we're > learning with the ACPI modules aliaes and that hammering tons of loads. > > So add a bit of code which gets us a bit more in the defensive about > these situations. > > To experiment, this also adds in-kernel alias support to see if this helps > with some larger systems. > > This is all based on some old code which tried to add defensive > mechanisms the last of which was here and I had dropped the ball: > > https://lore.kernel.org/all/20171208001540.23696-1-mcgrof@kernel.org/ > > I've only compile tested this for now. Will need to stress to test > with kmod tests 0008 and 0009 to see if there's any differences. > I'll have to re-test and re-gnuplot stuff there. But early feedback > is appreciated, hence the RFC. > > David Hildenbrand had reported a while ago issues with userspace > doing insane things with allocations bringing a system down to > its knees. This is part of the motivation for this series.
I'll try to grab a system where I can reproduce the issue and give your patches a churn.
Thanks!
-- Thanks,
David / dhildenb
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