XPost: linux.debian.kernel 
 From: kevin@xf.ee 
  
 On Sat, 27 Sep 2025 16:09:08 +0200 Salvatore Bonaccorso 
  wrote: 
 > - Can you temporarily test as well the upper kernels from unstable 
 > €€€€(6.16.8-1 right now, but soonish 6.16.9-1 as well) to see if the 
 > €€€€problem is triggerable there as well? 
  
 I tested the upper kernels and was still able to reproduce the issue on 
 both 6.16.8-1 and 6.16.9-1. 
  
  
 > Note: If we find the problem is prosent in 6.16.y then we need to find 
 > the breaking change between 6.1.y and 6.12.y. It might be asier here 
 > if we first make the range of potential upstream versions more narrow, 
 > so you might first do a "manual bisect" on Debian revisions (For that 
 > use the snapshot.debian.org service to retrieve linux-images uploaded 
 > to Debian. E.g. go down from 6.12 in "major version" steps until we 
 > have close enough range of broken/fixed upstream major versions. Then 
 > perform a normal bisect between the upstream versions. 
  
 Using snapshot.debian.org I have determined that the breaking change was 
 introduced between 6.11.10 (tested 6.11.10-1) and 6.12 (tested 6.12.3-1 
 and 6.12~rc6-1~exp1). 
  
 Thank you for your assistance. Let me know what would be the next step. 
  
 -- 
 Kevin 
  
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