Hi John, thank you for your email. Happy to hear from you! > On 3. Sep 2024, at 10:15, John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx> wrote: > > Hi Rene, > > according to these posts [1][2] by Iggi, you figured out the stability problem No, we are just sometimes lucky it run that long stable. I was only made aware recently that sun4u was not 100% and my fasted UltraSPARC until some year ago was only a 360MHz Ultra5 until I was donated a Sun Blade 1000 recently. I see some MM corruption that I wanted to hunt next. > with newer kernels on older SPARC machines. There has been a regression on older > SPARCs since around kernel 4.19.x which I haven't gotten around to bisecting yet. Happy to bi-sect. I guess you mean random memory corruption I see or anything else? If you have issues to bi-sect just let us know for any arch. Given T2’s cross-compile support and I have most hardware in my museum now, I can usually bisect issues within a day or two. > If you've found and fixed the bug in question, it would be great if you could share > your fix with the community and maybe whip up a kernel patch to fix the bug upstream. Of course - all patches are always nicely sorted in our public and nicely readable SVN tree in any case. https://t2linux.com > Newer SPARCs are not affected by this bug, although there are other issues. You mean sun4v? I found a cheap T4-1 some month ago, and T2/Linux appears to run stable on that. Any list of issues w/ sun4v I should be aware of? Thanks, René > Thanks, > Adrian > >> [1] https://x.com/Iggi76123640/status/1828396228444389600 >> [2] https://x.com/Iggi76123640/status/1828673611080589641 > > -- > .''`. John Paul Adrian Glaubitz > : :' : Debian Developer > `. `' Physicist > `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913 -- ExactCODE GmbH, Lietzenburger Str. 42, DE-10789 Berlin http://exactcode.com | http://exactscan.com | http://ocrkit.com