On Wed, Dec 21, 2022 at 3:45 PM Thorsten Leemhuis <regressions@xxxxxxxxxxxxx> wrote: > > Hi, this is your Linux kernel regression tracker. The relevant code here > is not my area of expertise, nevertheless a few questions: Thank you > > On 21.12.22 03:23, Kaiwan N Billimoria wrote: > > [REGRESSION] ? > > > Testing with 6.1, I find the same issue - VirtualBox VMs seem to hang > > on boot, though the kernel has this patch applied of course... > > Maybe I'm missing something, but what made you assume that it's the same > issue? The fix for that issue talked about "garbage" in some structures > that "can cause random failures during the bringup of the fbcon." Yeah, > maybe that ca result in a hang, but I didn't see it that thread (but > maybe I missed) I got an Oops when testing with VirtualBox; managed to recover it; pl have a look: https://gist.github.com/kaiwan/a79ad81fa63440b790724a136d16407d The presence of the ttm module in the Oops in RIP: RIP: 0010:ttm_bo_move_memcpy+0x15f/0x2e0 [ttm] and the vmwgfx module's funcs in the call stack made me think that perhaps it's the same issue... Am unsure, you folks will of course know better. > > > Am running VirtualBox 7.0.4 on an x86_64 Linux (Ubuntu 22.04.1) host; > > the system hangs on boot with the screen > > going blank. > > A bit more details would be helpful. For example: is anything printed at > all before the system hangs? What's the last kernel that worked for you > (and is the newer kernel using a similar build configuration)? Earlier kernels all seem to work fine, with a similar (localmodconfig) config.. Also, as mentioned, putting 'nomodeset' in the kernel cmd line has it work just fine, even with 6.1 >Which > graphics adapater did you configure in VirtualBox? VMSVGA > > Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) Thanks Thorsten... -kaiwan. > > P.S.: As the Linux kernel's regression tracker I deal with a lot of > reports and sometimes miss something important when writing mails like > this. If that's the case here, don't hesitate to tell me in a public > reply, it's in everyone's interest to set the public record straight.
