> On 22 Mar 2022, at 20:29, John David Anglin <dave.anglin@xxxxxxxx> wrote: > > On 2022-03-22 4:04 p.m., John David Anglin wrote: >> On 2022-03-22 3:37 p.m., Sam James wrote: >>> In our experience so far, there has been no good kernel version for us on this hardware. >> What happens with the attached config? My rp3440 runs okay with this config. >>> >>>> I've seen this before but it's not occurring in my current builds for rp3440 and c8000. I've been running for-next >>>> changes on c8000 for several weeks. >>>> >>> Yeah, I haven't seen this at all on my C8000 (or Gentoo's other HW, a C3600). >> Architecturally, there is no difference between rp3440 and c8000 with respect to the cache and TLB. >> Ah, thanks, I didn't realise this. >> As I said, the inequivalent alias are a memory mapping issue. This might vary depending on memory size. > > Config might make a difference as well. > > In order to debug, one needs to find the circumstances that cause it. > Understood & agreed. I'm going to try Helge's config w/ 5.10.x, then yours with 5.16.x, and try get some more information on how to reproduce too. I'll report back. Thanks for sharing your config. I can see how it might easily make a significant difference, especially given it can even on x86/other more-popular platforms, let alone on PARISC where we can only test far smaller combinations. > Dave > > -- > John David Anglin dave.anglin@xxxxxxxx > <config-5.16.16+.gz> Best, sam
Attachment:
signature.asc
Description: Message signed with OpenPGP
