On Wed, Aug 02, 2023 at 11:42:59AM +0200, Greg KH wrote:
On Wed, Aug 02, 2023 at 09:52:45AM +0100, Conor Dooley wrote:
On Wed, Aug 02, 2023 at 10:33:27AM +0200, Greg KH wrote:
On Wed, Aug 02, 2023 at 04:17:51PM +0800, Minda Chen wrote:
On 2023/8/2 15:48, Conor Dooley wrote:
On Wed, Aug 02, 2023 at 03:32:15PM +0800, Minda Chen wrote:
On 2023/8/2 14:54, Conor Dooley wrote:
Thanks, Conor. I found this just by inspection. I found a issue that vdso.so call cpu_relax cause application core dump in kernel 6.1.31. I need Samuel'patch to fix this. And I search the log of processor.h found this issue.
That doesn't look like it is fixed in later stable kernels (we are at 6.1.42-rcN right now I think). It sounds we should ask Greg to backport 0b1d60d6dd9e ("riscv: Fix build with CONFIG_CC_OPTIMIZE_FOR_SIZE=y") to 6.1. Does that make sense to you?
Yes. 6.1 is lts kernel. Starfive will use this kernel for a long time. Thanks.
What is preventing you from moving to a newer kernel version? All of your kernel changes are already properly merged into Linus's tree, right?
Regardless of their reasons, "vdso.so call cpu_relax cause application core dump" is something that we should fix in stable kernels, no?
Yes.
It doesn't apply cleanly as a cherry-pick onto linux-6.1, so it'll need to be submitted. Maybe Minda can do that, since they've got an already tested version of the patch. Failing that, I will.