On 02/08/2023 18:25, Linux regression tracking (Thorsten Leemhuis) wrote: > On 02.08.23 13:08, Bagas Sanjaya wrote: >> >> I notice a regression report on Bugzilla [1]. Quoting from it: >> >>> I hit this kernel bug on the latest 6.3.9 kernel after executing this script to cleanup hugepages from the kernel before booting up a Windows 11 VM with QEMU (otherwise I don't have enough contiguous memory to allocate the pages to the VM) >>> >>> snip >>> if [[ $VM_ACTION == 'prepare' ]]; >>> then >>> sync >>> echo 3 > /proc/sys/vm/drop_caches >>> echo 1 > /proc/sys/vm/compact_memory >>> endsnip >>> >>> Attached is the full QEMU script that I used. I do use ZFS as a root filesystem, as you can see from the loaded modules. > > Bagas, FWIW, I'd totally understand if developers will ignore this > (remains to be seen if that is the case, maybe we are lucky and somebody > will take a look), as I think you for now shouldn't have forwarded this > for two reasons: > > * 6.3.y is old and EOL; testing mainline or at least a fresh 6.4.y > kernel) would have been a must here. > * with out-of-tree modules like ZFS anything can happen, the user is own > its own. > I have already asked the reporter to try reproducing this with "officially-supported" other filesystems (e.g. ext4, xfs, or btrfs). The reporter also stated that he was now trying the mainline (but not rc release, just latest stable). > As I can see from the bug both things will likely clear up soon, hence > waiting would have been wise here. > > Please in the future do not forward such bugs, as developers might > otherwise start to ignore mails wrt to regression tracking -- which we > really need to avoid, as that will make things a lot harder. > Thanks for another tip! -- An old man doll... just what I always wanted! - Clara
