Re: arm64: perf test 26 rpi4 oops

From: Will Deacon
Date: Tue Aug 01 2023 - 03:27:43 EST


On Tue, Aug 01, 2023 at 06:34:15AM +0200, Mike Galbraith wrote:
> On Tue, 2023-08-01 at 01:48 +0200, Mike Galbraith wrote:
> >
> > root@rpi4:~# dmesg|tail -2
> > [  979.003019] __vm_enough_memory: pid: 12439, comm: objdump, not enough memory for the allocation
> > [  979.003080] __vm_enough_memory: pid: 12439, comm: objdump, not enough memory for the allocation
>
> Ancient bug droppings are due to VMALLOC_END-VMALLOC_START=265885319168.

FWIW, I see the same thing on my x86 laptop. I'm guessing objdump tries
to read all of the vmalloc space into memory, which is going to end
pretty badly!

Will