From: Vladislav Yaroshchuk <1922102@bugs.launchpad.net>
To: qemu-devel@nongnu.org
Subject: [Bug 1922102] [NEW] Broken tap networking on macOS host
Date: Wed, 31 Mar 2021 15:08:59 -0000 [thread overview]
Message-ID: <161720333927.2408.17717907169331715630.malonedeb@chaenomeles.canonical.com> (raw)
Public bug reported:
Building QEMU with GLib newer than 2.58.3 corrupts tap networking on macOS hosts.
Tap device was provided by Tun/Tap kernel extension installed from brew:
brew install tuntap
Checked revisions:
553032d (v5.2.0)
6d40ce0 (v6.0.0-rc1)
Host:
MacBook Pro (Retina, 15-inch, Mid 2015)
macOS Catalina 10.15.6 (19G2021)
Guest:
Linux Ubuntu 4.4.0-206-generic x86_64
Also tested macOS Catalina 10.15.7 as a guest, the behaviour is the same.
QEMU command line:
qemu-system-x86_64 \
-drive file=hdd.qcow2,if=virtio,format=qcow2 \
-m 3G \
-nic tap,script=tap-up.sh
tap-up.sh:
#!/bin/sh
TAPDEV="$1"
BRIDGEDEV="bridge0"
ifconfig "$BRIDGEDEV" addm "$TAPDEV"
Enabling/disabling Hypervisor.Framework acceleration (`-accel hvf`) has
no effect.
How to reproduce:
1. Build & install GLib > 2.58.3 (tested 2.60.7, 2.60.7)
2. Build qemu-system-x86_64 with GLib > 2.58.3
3. Boot any guest any guest with tap networking enabled
4. See that the external network is inaccessible
Hotfix:
1. Build & install GLib 2.58.3
2. Build qemu-system-x86_64 with GLib 2.58.3
3. Boot any guest with tap networking enabled
4. See that the external network is accessible, everything is working as expected
** Affects: qemu
Importance: Undecided
Status: New
** Tags: macos net network tap tap-net
** Description changed:
- Building QEMU with GLib newer than 2.58.3 corrupts tap networking.
+ Building QEMU with GLib newer than 2.58.3 corrupts tap networking on macOS hosts.
Tap device was provided by Tun/Tap kernel extension installed from brew:
- brew install tuntap
+ brew install tuntap
Checked revisions:
- 553032d (v5.2.0)
- 6d40ce0 (v6.0.0-rc1)
+ 553032d (v5.2.0)
+ 6d40ce0 (v6.0.0-rc1)
Host:
- MacBook Pro (Retina, 15-inch, Mid 2015)
- macOS Catalina 10.15.6 (19G2021)
+ MacBook Pro (Retina, 15-inch, Mid 2015)
+ macOS Catalina 10.15.6 (19G2021)
Guest:
- Linux Ubuntu 4.4.0-206-generic x86_64
- Also tested macOS Catalina 10.15.7 as a guest, the behaviour is the same.
+ Linux Ubuntu 4.4.0-206-generic x86_64
+ Also tested macOS Catalina 10.15.7 as a guest, the behaviour is the same.
QEMU command line:
qemu-system-x86_64 \
- -drive file=hdd.qcow2,if=virtio,format=qcow2 \
- -m 3G \
- -nic tap,script=tap-up.sh
+ -drive file=hdd.qcow2,if=virtio,format=qcow2 \
+ -m 3G \
+ -nic tap,script=tap-up.sh
tap-up.sh:
-
- #!/bin/sh
- TAPDEV="$1"
- BRIDGEDEV="bridge0"
+ #!/bin/sh
- ifconfig "$BRIDGEDEV" addm "$TAPDEV"
+ TAPDEV="$1"
+ BRIDGEDEV="bridge0"
+
+ ifconfig "$BRIDGEDEV" addm "$TAPDEV"
Enabling/disabling Hypervisor.Framework acceleration (`-accel hvf`) has
no effect.
- How to reproduce:
- 1. Build & install GLib > 2.58.3 (tested 2.60.7, 2.60.7)
- 2. Build qemu-system-x86_64 with GLib > 2.58.3
- 3. Boot any guest any guest with tap networking enabled
- 4. See that the external network is inaccessible
+ How to reproduce:
+ 1. Build & install GLib > 2.58.3 (tested 2.60.7, 2.60.7)
+ 2. Build qemu-system-x86_64 with GLib > 2.58.3
+ 3. Boot any guest any guest with tap networking enabled
+ 4. See that the external network is inaccessible
Hotfix:
- 1. Build & install GLib 2.58.3
- 2. Build qemu-system-x86_64 with GLib 2.58.3
- 3. Boot any guest with tap networking enabled
- 4. See that the external network is accessible, everything is working as expected
+ 1. Build & install GLib 2.58.3
+ 2. Build qemu-system-x86_64 with GLib 2.58.3
+ 3. Boot any guest with tap networking enabled
+ 4. See that the external network is accessible, everything is working as expected
--
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https://bugs.launchpad.net/bugs/1922102
Title:
Broken tap networking on macOS host
Status in QEMU:
New
Bug description:
Building QEMU with GLib newer than 2.58.3 corrupts tap networking on macOS hosts.
Tap device was provided by Tun/Tap kernel extension installed from brew:
brew install tuntap
Checked revisions:
553032d (v5.2.0)
6d40ce0 (v6.0.0-rc1)
Host:
MacBook Pro (Retina, 15-inch, Mid 2015)
macOS Catalina 10.15.6 (19G2021)
Guest:
Linux Ubuntu 4.4.0-206-generic x86_64
Also tested macOS Catalina 10.15.7 as a guest, the behaviour is the same.
QEMU command line:
qemu-system-x86_64 \
-drive file=hdd.qcow2,if=virtio,format=qcow2 \
-m 3G \
-nic tap,script=tap-up.sh
tap-up.sh:
#!/bin/sh
TAPDEV="$1"
BRIDGEDEV="bridge0"
ifconfig "$BRIDGEDEV" addm "$TAPDEV"
Enabling/disabling Hypervisor.Framework acceleration (`-accel hvf`)
has no effect.
How to reproduce:
1. Build & install GLib > 2.58.3 (tested 2.60.7, 2.60.7)
2. Build qemu-system-x86_64 with GLib > 2.58.3
3. Boot any guest any guest with tap networking enabled
4. See that the external network is inaccessible
Hotfix:
1. Build & install GLib 2.58.3
2. Build qemu-system-x86_64 with GLib 2.58.3
3. Boot any guest with tap networking enabled
4. See that the external network is accessible, everything is working as expected
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1922102/+subscriptions
next reply other threads:[~2021-03-31 15:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-31 15:08 Vladislav Yaroshchuk [this message]
2021-04-17 7:40 ` [Bug 1922102] Re: Broken tap networking on macOS host Vladislav Yaroshchuk
2021-05-14 19:05 ` Thomas Huth
2021-05-18 4:26 ` Thomas Huth
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