[Qemu-devel] [Bug 1459622] Re: firefox hang with virtfs

[address@hidden]

Same situation here:
Firefox can't handle ~/.mozilla to be a virtio-9p mount.
Here the subvolume is ext4, mounted only at /home.

I also noticed that chromium is working, but it complains about some errors:
getrlimit(RLIMIT_NOFILE) failed
[4809:4839:0804/230514:ERROR:backend_impl.cc(1365)] Unable to map Index file
[4809:4839:0804/230514:ERROR:backend_impl.cc(1365)] Unable to map Index file
[4809:4840:0804/230514:ERROR:cache_creator.cc(133)] Unable to create cache
[4845:4845:0804/230514:ERROR:sandbox_linux.cc(340)] InitializeSandbox() called 
with multiple threads in process gpu-process

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https://bugs.launchpad.net/bugs/1459622

Title:
  firefox hang with virtfs

Status in QEMU:
  New

Bug description:
  Firefox hangs once it starts to load pages. I tried to delete
  .cache/mozilla/ and .mozilla/ but it doesn't help. But if I mount
  tmpfs on to .mozilla (not necessary for .cache/mozilla/), pages loads
  fine.

  I started the vm as root (sudo) with the following command: qemu-
  system-x86_64 -enable-kvm -m 4G -virtfs
  local,mount_tag=qemu,security_model=passthrough,path=/mnt/qemu/
  -kernel /mnt/qemu/boot/vmlinuz-linux -initrd /mnt/qemu/boot/initramfs-
  linux-fallback.img -append 'rw root=qemu fstype=9p' -usbdevice tablet
  -vga qxl -spice port=12345,disable-ticketing

  /mnt/qemu is a btrfs snapshot of the subvolume used as the host root

  Arch Linux, qemu 2.3.0, firefox 38.0.1

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