On Tue, May 20, 2025 at 12:23:42PM +0200, Marc Hartmayer wrote: > On Mon, May 12, 2025 at 01:14 PM -0400, Johannes Weiner <hannes@xxxxxxxxxxx> wrote: ... > > The weird thing is that the warning is from expand(), when the broken > > up chunks are put *back*. Marc, can you confirm that this is the only > > warning in dmesg, and there aren't any before this one? > > Yep, I’ve just checked, it was the first warning and `panic_on_warn` is > set to 1. > > I managed to reproduce a similar crash using 6.15.0-rc7 (this time THP > seems to be involved): ... > This time, the setup is even simpler: > > 1. Start a 2GB QEMU/KVM guest > 2. Now run some memory stress test > > I run this test in a loop (with starting/shutting down the VM) and after > many iterations, the bug occurs. > > […snip…] Hi Johannes, Marc is going to be away for some time. Is there any update here? Thanks!
