Messages in this thread | | | Subject | Re: Linux 5.13-rc6 regression to 5.12.x: kernel OOM and panic during kernel boot in low memory Xen VM's (256MB assigned memory). | From | Rasmus Villemoes <> | Date | Mon, 21 Jun 2021 18:54:00 +0200 |
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On 18/06/2021 03.06, Sander Eikelenboom wrote: > On 17/06/2021 21:39, Sander Eikelenboom wrote:
> > OK, done some experimentation and it seems with 256M assigned to the VM > it was almost at the edge of OOM with the 5.12 kernel as well in the > config I am using it. > With v5.12 when I assign 240M it boots, with 230M it doesn't. With 5.13 > the tipping point seems to be around 265M and 270M, so my config was > already quite close to the edge. > > The "direct kernel boot" feature I'm using just seems somewhat memory > hungry, but using another compression algorithm for the kernel and > initramfs already helped in my case. > > So sorry for the noise, clearly user-error.
Hm, perhaps, but I'm still a bit nervous about that report from Oliver Sang/kernel test robot, which was for a VM equipped with 16G of memory. But despite quite a few attempts, I haven't been able to reproduce that locally, so unfortunately I have no idea what's going on.
Rasmus
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