What were you trying to do that didn't work?
I have a linux host with an ext4 file system and a Windows 10 guest running on it, after reading 1 million files on the virtiofs shared dir, the mount disconnected and virtiofsd quit.

Please provide the package NVR for which bug is seen:
Host:
virtiofsd-1.11.1-1.el9.x86_64
qemu-kvm-9.0.0-3.el9.x86_64
edk2-ovmf-20240524-2.el9.noarch
seabios-bin-1.16.3-2.el9.noarch
kernel-5.14.0-494.el9.x86_64

Guest:
Win10-64bit, build 19041
virtio-win-prewhql-0.1-253
winfsp-2.0.23075.msi

How reproducible:
2/2

Steps to reproduce
1. prepare a shared dir on top of ext4 on host
dd if=/dev/zero of=./ext4_image.img bs=1M count=102400
mkfs.ext4 ext4_image.img
mount -o loop ext4_image.img /root/avocado/data/avocado-vt/virtio_fs_test/

2. start virtiofsd daemon with the shared dir.
/usr/libexec/virtiofsd --socket-path=/var/tmp/avocado-vt-vm1-fs-virtiofsd.sock -o ource=/root/avocado/data/avocado-vt/virtio_fs_test/ -o cache=auto

3. start win10 64bit VM with qemu-kvm
-m 16384,maxmem=20G \
-object '

{"size": 17179869184, "share": true, "id": "mem-mem1", "qom-type": "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id":false}

' \
-smp 24,maxcpus=24,cores=12,threads=1,dies=1,sockets=2 \
-numa node,memdev=mem-mem1,nodeid=0 \
-chardev socket,id=char_virtiofs_fs,path=/var/tmp/avocado-vt-vm1-fs-virtiofsd.sock \
-device '

{"id": "pcie-root-port-6", "port": 6, "driver": "pcie-root-port", "addr": "0x1.0x6", "bus": "pcie.0", "chassis": 7}

' \
-device '

{"id": "vufs_virtiofs_fs", "chardev": "char_virtiofs_fs", "tag": "myfs", "queue-size": 1024, "driver": "vhost-user-fs-pci", "bus": "pcie-root-port-6", "addr": "0x0"}

' \
-device '

{"driver": "virtio-balloon-pci", "id": "balloon0", "bus": "pcie-root-port-10", "addr": "0x0"}

' \

4. create folders on shared dir
for i in

{1..3}

; do mkdir F$i; done
cd F1 ; for i in

{1..4}

; do mkdir A$i; done
tree
.
├── F1
│ ├── A1
│ ├── A2
│ ├── A3
│ └── A4
├── F2
└── F3

5. create 300k files in their subdirectories.
for j in F2 F3; do for i in

{1..307200}; do dd if=/dev/urandom of=./$j/file-$j-$i.txt bs=1k count=1; done; done
for j in A1 A2 A3 A4; do for i in {1..307200}

; do dd if=/dev/urandom of=./F1/$j/file-$j-$i.txt bs=128 count=1; done; done

6. inside VM, start virtiofs service and get the shared volum
7. run `dir /s /b F2; dir /s /b F1` and etc, everything works, no disconnect, no drop.
8. wait the dir cmd complete, and re-read the mount dir

Expected results
The mount still works.

Actual results
The mount was disconnected and virtiofsd quit.