Re: hunting memory corruption bug in 6.18.x

From: Borislav Petkov

Date: Wed Oct 14 2026 - 19:58:09 EST


On Mon, Oct 12, 2026 at 01:43:30PM +0200, Nikola Ciprich wrote:
> Since I didn’t have anything else to try, and we started having
> crashes on our own cluster nodes, where I can be a bit bolder,
> I built 7.3-rc6, deployed it on two problematic AMD nodes, and
> started a migration torture loop.
>
> Over the weekend, there were ~70 migrations of ~160 VMs between
> those two nodes without a single issue.

Did it reproduce usually with this?

If not, keep hammering on it with the latest kernel. We might've fixed
whatever that was, along the way. :-(

And if so, that would be a damn nasty bisection to figure out what fixed it...

So pls hammer on it as long as possible to see if it is really fixed or it is
simply harder to repro.

Thx.

--
Regards/Gruss,
Boris.

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