semantic: 0.873 graphic: 0.841 permissions: 0.835 debug: 0.785 device: 0.762 other: 0.753 socket: 0.670 performance: 0.664 KVM: 0.660 PID: 0.659 vnc: 0.640 network: 0.609 boot: 0.600 files: 0.587 qemu-system-x86_64 crash: in memory_region_access_valid+0x13 Recently we started to get intermittent qemu crashes. There is catchsegv report: ``` + qemu-system-x86_64 -m 77766M -smp 8 -nodefaults -nographic -no-reboot -fsdev local,id=root,path=/,security_model=none,multidevs=remap -device virtio-9p-pci,fsdev=root,mount_tag=/dev/root -device virtio-rng-pci -serial mon:stdio -kernel /usr/src/tmp/kernel-image-rt-buildroot/boot/vmlinuz-4.19.165-rt-alt1.rt70 -initrd /usr/src/tmp/initramfs-4.19.165-rt-alt1.rt70.img -bios bios.bin -append 'console=ttyS0 mitigations=off nokaslr quiet panic=-1 no_timer_check' *** signal 11 Register dump: RAX: 0000000000000000 RBX: 0000034000000340 RCX: 0000000000000001 RDX: 0000000000000004 RSI: 0000000000000300 RDI: 0000034000000340 RBP: 0000000000000300 R8 : 0000000000000000 R9 : 0000034000000340 R10: 0000000000000370 R11: 0000000000000002 R12: 0000000000000004 R13: 0000000000000004 R14: 000055b473fef5e0 R15: 0000000000000002 RSP: 00007fd7edffae90 RIP: 000055b4717ef653 EFLAGS: 00010206 CS: 0033 FS: 0000 GS: 0000 Trap: 0000000e Error: 00000004 OldMask: 7ffbfa77 CR2: 00000388 FPUCW: 0000037f FPUSW: 00000000 TAG: 00000000 RIP: 00000000 RDP: 00000000 ST(0) 0000 0000000000000000 ST(1) 0000 0000000000000000 ST(2) 0000 0000000000000000 ST(3) 0000 0000000000000000 ST(4) 0000 0000000000000000 ST(5) 0000 0000000000000000 ST(6) 0000 0000000000000000 ST(7) 0000 0000000000000000 mxcsr: 1fa0 XMM0: 00000000000000000000000000000000 XMM1: 00000000000000000000000000000000 XMM2: 00000000000000000000000000000000 XMM3: 00000000000000000000000000000000 XMM4: 00000000000000000000000000000000 XMM5: 00000000000000000000000000000000 XMM6: 00000000000000000000000000000000 XMM7: 00000000000000000000000000000000 XMM8: 00000000000000000000000000000000 XMM9: 00000000000000000000000000000000 XMM10: 00000000000000000000000000000000 XMM11: 00000000000000000000000000000000 XMM12: 00000000000000000000000000000000 XMM13: 00000000000000000000000000000000 XMM14: 00000000000000000000000000000000 XMM15: 00000000000000000000000000000000 Backtrace: qemu-system-x86_64(memory_region_access_valid+0x13)[0x55b4717ef653] qemu-system-x86_64(memory_region_dispatch_write+0x48)[0x55b4717ef8c8] qemu-system-x86_64(+0x69fdfc)[0x55b471851dfc] qemu-system-x86_64(helper_le_stl_mmu+0x2c5)[0x55b471858995] [0x7feaed070925] ``` QEMU release 5.2.0. The QEMU project is currently moving its bug tracking to another system. For this we need to know which bugs are still valid and which could be closed already. Thus we are setting the bug state to "Incomplete" now. If the bug has already been fixed in the latest upstream version of QEMU, then please close this ticket as "Fix released". If it is not fixed yet and you think that this bug report here is still valid, then you have two options: 1) If you already have an account on gitlab.com, please open a new ticket for this problem in our new tracker here: https://gitlab.com/qemu-project/qemu/-/issues and then close this ticket here on Launchpad (or let it expire auto- matically after 60 days). Please mention the URL of this bug ticket on Launchpad in the new ticket on GitLab. 2) If you don't have an account on gitlab.com and don't intend to get one, but still would like to keep this ticket opened, then please switch the state back to "New" or "Confirmed" within the next 60 days (other- wise it will get closed as "Expired"). We will then eventually migrate the ticket automatically to the new system (but you won't be the reporter of the bug in the new system and thus you won't get notified on changes anymore). Thank you and sorry for the inconvenience. [Expired for QEMU because there has been no activity for 60 days.]