Public bug reported:
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.
** Affects: qemu
Importance: Undecided
Status: New
--
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devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1913315
Title:
qemu-system-x86_64 crash: in memory_region_access_valid+0x13
Status in QEMU:
New
Bug description:
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.
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