On Tue, Jun 13, 2023 at 11:58:05AM -0700, Bhatnagar, Rishabh wrote: > > On 6/13/23 11:49 AM, Bhatnagar, Rishabh wrote: > > Hi Sebastian/Greg > > > > We are seeing RCU stall warnings from recent stable tree updates: > > 5.4.243, 5.10.180, 5.15.113, 6.1.31 onwards. > > This is seen in the upstream stable trees without any downstream patches. > > > > The issue is seen few minutes after booting without any workload. > > We launch hundred's of virtual instances and this shows up in 1-2 > > instances, so its hard to reproduce. > > Attaching a few stack traces below. > > > > The issue can be seen on virtual and baremetal instances. > > Another interesting point is we only see this on x86 based instances. > > We also did test this on linux-mainline but were not able to reproduce > > the issue. > > So maybe there's a fixup or related commit that has gone in? Oops, missed this. Yes, there might be, can you do 'git bisect' and track down the patch that fixed this? thanks, greg k-h
