* [Bug 1867519] Re: libvirt 6.0 : virtual machine stuck when detaching PCI device using virsh command
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
@ 2020-03-18 11:19 ` Christian Ehrhardt
2020-03-18 11:21 ` [Bug 1867519] Re: qemu 4.2 segfaults on VF detach Christian Ehrhardt
` (15 subsequent siblings)
16 siblings, 0 replies; 17+ messages in thread
From: Christian Ehrhardt @ 2020-03-18 11:19 UTC (permalink / raw)
To: qemu-devel
I re-run the above, full PCI passthrough still attaches/detaches fine.
VFs attach fine
VFs break on detach
I've thrown qemu into GDB and this is the backtrace
Thread 4 "CPU 0/KVM" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7f82f0e31700 (LWP 3998)]
0x000055d2f322d45d in notifier_remove (notifier=notifier@entry=0x55d2f40c5078) at ./util/notify.c:31
31 QLIST_REMOVE(notifier, node);
(gdb) bt
#0 0x000055d2f322d45d in notifier_remove (notifier=notifier@entry=0x55d2f40c5078) at ./util/notify.c:31
#1 0x000055d2f2df8df9 in kvm_irqchip_remove_change_notifier (n=n@entry=0x55d2f40c5078) at ./accel/kvm/kvm-all.c:1409
#2 0x000055d2f2e56989 in vfio_exitfn (pdev=<optimized out>) at ./hw/vfio/pci.c:3079
#3 0x000055d2f3025c1b in pci_qdev_unrealize (dev=<optimized out>, errp=<optimized out>) at ./hw/pci/pci.c:1131
#4 0x000055d2f2f8c6e2 in device_set_realized (obj=<optimized out>, value=<optimized out>, errp=0x0) at ./hw/core/qdev.c:932
#5 0x000055d2f312449b in property_set_bool (obj=0x55d2f40c4430, v=<optimized out>, name=<optimized out>, opaque=0x55d2f4083ee0, errp=0x0) at ./qom/object.c:2078
#6 0x000055d2f3128c84 in object_property_set_qobject (obj=obj@entry=0x55d2f40c4430, value=value@entry=0x7f82dc2f7130, name=name@entry=0x55d2f330d85d "realized", errp=errp@entry=0x0)
at ./qom/qom-qobject.c:26
#7 0x000055d2f31264ba in object_property_set_bool (obj=0x55d2f40c4430, value=<optimized out>, name=0x55d2f330d85d "realized", errp=0x0) at ./qom/object.c:1336
#8 0x000055d2f2f56bca in acpi_pcihp_device_unplug_cb (hotplug_dev=<optimized out>, s=<optimized out>, dev=0x55d2f40c4430, errp=<optimized out>) at ./hw/acpi/pcihp.c:269
#9 0x000055d2f2f56253 in acpi_pcihp_eject_slot (s=<optimized out>, bsel=<optimized out>, slots=slots@entry=256) at ./hw/acpi/pcihp.c:170
#10 0x000055d2f2f56383 in pci_write (size=<optimized out>, data=256, addr=8, opaque=<optimized out>) at ./hw/acpi/pcihp.c:341
#11 pci_write (opaque=<optimized out>, addr=<optimized out>, data=256, size=<optimized out>) at ./hw/acpi/pcihp.c:332
#12 0x000055d2f2de9cfb in memory_region_write_accessor (mr=mr@entry=0x55d2f4780970, addr=8, value=value@entry=0x7f82f0e304f8, size=size@entry=4, shift=<optimized out>,
mask=mask@entry=4294967295, attrs=...) at ./memory.c:483
#13 0x000055d2f2de79ee in access_with_adjusted_size (addr=addr@entry=8, value=value@entry=0x7f82f0e304f8, size=size@entry=4, access_size_min=<optimized out>,
access_size_max=<optimized out>, access_fn=access_fn@entry=0x55d2f2de9bd0 <memory_region_write_accessor>, mr=0x55d2f4780970, attrs=...) at ./memory.c:544
#14 0x000055d2f2debfc3 in memory_region_dispatch_write (mr=mr@entry=0x55d2f4780970, addr=8, data=<optimized out>, op=<optimized out>, attrs=attrs@entry=...) at ./memory.c:1475
#15 0x000055d2f2d96a30 in flatview_write_continue (fv=fv@entry=0x7f82dc14bbc0, addr=addr@entry=44552, attrs=..., buf=buf@entry=0x7f82f17e9000 "", len=len@entry=4, addr1=<optimized out>,
l=<optimized out>, mr=0x55d2f4780970) at ./include/qemu/host-utils.h:164
#16 0x000055d2f2d96c46 in flatview_write (fv=0x7f82dc14bbc0, addr=44552, attrs=..., buf=0x7f82f17e9000 "", len=4) at ./exec.c:3169
#17 0x000055d2f2d9b01f in address_space_write (as=as@entry=0x55d2f3956960 <address_space_io>, addr=addr@entry=44552, attrs=..., buf=<optimized out>, len=len@entry=4) at ./exec.c:3259
#18 0x000055d2f2d9b09e in address_space_rw (as=as@entry=0x55d2f3956960 <address_space_io>, addr=addr@entry=44552, attrs=..., attrs@entry=..., buf=<optimized out>, len=len@entry=4,
is_write=is_write@entry=true) at ./exec.c:3269
#19 0x000055d2f2dfc94f in kvm_handle_io (count=1, size=4, direction=<optimized out>, data=<optimized out>, attrs=..., port=44552) at ./accel/kvm/kvm-all.c:2104
#20 kvm_cpu_exec (cpu=cpu@entry=0x55d2f3dc9090) at ./accel/kvm/kvm-all.c:2350
#21 0x000055d2f2dde53e in qemu_kvm_cpu_thread_fn (arg=0x55d2f3dc9090) at ./cpus.c:1318
#22 qemu_kvm_cpu_thread_fn (arg=arg@entry=0x55d2f3dc9090) at ./cpus.c:1290
#23 0x000055d2f321fe13 in qemu_thread_start (args=<optimized out>) at ./util/qemu-thread-posix.c:519
#24 0x00007f82f4290609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#25 0x00007f82f41b7153 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
** Package changed: libvirt (Ubuntu) => qemu (Ubuntu)
** Summary changed:
- libvirt 6.0 : virtual machine stuck when detaching PCI device using virsh command
+ qemu 4.2 segfaults on VF detach
** Also affects: qemu
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
New
Status in qemu package in Ubuntu:
Confirmed
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
2020-03-18 11:19 ` [Bug 1867519] Re: libvirt 6.0 : virtual machine stuck when detaching PCI device using virsh command Christian Ehrhardt
@ 2020-03-18 11:21 ` Christian Ehrhardt
2020-03-18 11:28 ` Mohammad Heib
` (14 subsequent siblings)
16 siblings, 0 replies; 17+ messages in thread
From: Christian Ehrhardt @ 2020-03-18 11:21 UTC (permalink / raw)
To: qemu-devel
I changed the bug task to Qemu (Ubuntu) as this isn't a libvirt error.
I also added an upstream qemu task in case this is a known issue for the
developers there. Someone might be able to point us at a known
discussion/fix.
The Backtrace I added in the last comment should help to identify known
cases.
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
New
Status in qemu package in Ubuntu:
Confirmed
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
2020-03-18 11:19 ` [Bug 1867519] Re: libvirt 6.0 : virtual machine stuck when detaching PCI device using virsh command Christian Ehrhardt
2020-03-18 11:21 ` [Bug 1867519] Re: qemu 4.2 segfaults on VF detach Christian Ehrhardt
@ 2020-03-18 11:28 ` Mohammad Heib
2020-03-18 11:37 ` Christian Ehrhardt
` (13 subsequent siblings)
16 siblings, 0 replies; 17+ messages in thread
From: Mohammad Heib @ 2020-03-18 11:28 UTC (permalink / raw)
To: qemu-devel
Hi Christian,
yes that exactly what we see in our tests,
so are the logs that you asked for in comment#1 still needed?
also if you fix it can you please provide us a link for a package or even a workaround until the issue resolved, since this issue stuck our QA from testing ASAP over Focal.
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
New
Status in qemu package in Ubuntu:
Confirmed
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
` (2 preceding siblings ...)
2020-03-18 11:28 ` Mohammad Heib
@ 2020-03-18 11:37 ` Christian Ehrhardt
2020-03-18 11:40 ` Christian Ehrhardt
` (12 subsequent siblings)
16 siblings, 0 replies; 17+ messages in thread
From: Christian Ehrhardt @ 2020-03-18 11:37 UTC (permalink / raw)
To: qemu-devel
At the breaking function we have:
29 void notifier_remove(Notifier *notifier)
30 {
31 QLIST_REMOVE(notifier, node);
32 }
(gdb) p notifier
$1 = (Notifier *) 0x55d2f40c5078
(gdb) p *notifier
$2 = {notify = 0x0, node = {le_next = 0x0, le_prev = 0x0}}
And since QLIST_REMOVE is defined as:
140 #define QLIST_REMOVE(elm, field) do { \
141 if ((elm)->field.le_next != NULL) \
142 (elm)->field.le_next->field.le_prev = \
143 (elm)->field.le_prev; \
144 *(elm)->field.le_prev = (elm)->field.le_next; \
145 } while (/*CONSTCOND*/0)
(gdb) p (notifier)->node.le_next
$5 = (struct Notifier *) 0x0
(gdb) p &(notifier->node)
$11 = (struct {...} *) 0x55d2f40c5080
There actually is a != NULL check, might it have changed on the fly.
I need to look at it more thoroughly, but it should be enough to recognize a known issue.
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
Fix Committed
Status in qemu package in Ubuntu:
Confirmed
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
` (3 preceding siblings ...)
2020-03-18 11:37 ` Christian Ehrhardt
@ 2020-03-18 11:40 ` Christian Ehrhardt
2020-03-18 11:46 ` Daniel Berrange
` (11 subsequent siblings)
16 siblings, 0 replies; 17+ messages in thread
From: Christian Ehrhardt @ 2020-03-18 11:40 UTC (permalink / raw)
To: qemu-devel
Might be
https://git.qemu.org/?p=qemu.git;a=commit;h=0446f8121723b134ca1d1ed0b73e96d4a0a8689d
This would also match the backtrace path.
** Changed in: qemu
Status: New => Fix Committed
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
Fix Committed
Status in qemu package in Ubuntu:
Confirmed
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
` (4 preceding siblings ...)
2020-03-18 11:40 ` Christian Ehrhardt
@ 2020-03-18 11:46 ` Daniel Berrange
2020-03-18 15:49 ` Mohammad Heib
` (10 subsequent siblings)
16 siblings, 0 replies; 17+ messages in thread
From: Daniel Berrange @ 2020-03-18 11:46 UTC (permalink / raw)
To: qemu-devel
That commit you mention is confirmed to solve a bug reported against
Fedora with almost the same stack trace you see here.
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
Fix Committed
Status in qemu package in Ubuntu:
Confirmed
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
` (5 preceding siblings ...)
2020-03-18 11:46 ` Daniel Berrange
@ 2020-03-18 15:49 ` Mohammad Heib
2020-03-19 9:01 ` Christian Ehrhardt
` (9 subsequent siblings)
16 siblings, 0 replies; 17+ messages in thread
From: Mohammad Heib @ 2020-03-18 15:49 UTC (permalink / raw)
To: qemu-devel
Hi Christian,
Yes,
seems that the patch you mentioned fixing the issue i rebuilt the qemu with the patch and it's work fine now.
Thank you guys.
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
Fix Committed
Status in qemu package in Ubuntu:
Confirmed
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
` (6 preceding siblings ...)
2020-03-18 15:49 ` Mohammad Heib
@ 2020-03-19 9:01 ` Christian Ehrhardt
2020-03-19 9:08 ` Launchpad Bug Tracker
` (8 subsequent siblings)
16 siblings, 0 replies; 17+ messages in thread
From: Christian Ehrhardt @ 2020-03-19 9:01 UTC (permalink / raw)
To: qemu-devel
I regularly before a release pull in fixes that were posted for qemu-stable.
This is one of them, I'll again do such a build and retest this issue with it.
I identified and backported (only one needed modification) 33 patches.
But as usual there might be some context needed on top - I have build that over night in [1]
Testing that on my reproducer
Attach-host:
[84652.671123] vfio-pci 0000:08:00.2: enabling device (0000 -> 0002)
Attach-guest:
[ 45.199920] pci 0000:00:08.0: [15b3:1016] type 00 class 0x020000
[ 45.200374] pci 0000:00:08.0: reg 0x10: [mem 0x00000000-0x000fffff 64bit pref]
[ 45.201358] pci 0000:00:08.0: enabling Extended Tags
[ 45.202726] pci 0000:00:08.0: 0.000 Gb/s available PCIe bandwidth, limited by Unknown speed x0 link at 0000:00:08.0 (capable of 63.008 Gb/s with 8 GT/s x8 link)
[ 45.208316] pci 0000:00:08.0: BAR 0: assigned [mem 0x100000000-0x1000fffff 64bit pref]
[ 45.256566] mlx5_core 0000:00:08.0: enabling device (0000 -> 0002)
[ 45.262103] mlx5_core 0000:00:08.0: firmware version: 14.27.1016
[ 45.544010] mlx5_core 0000:00:08.0: MLX5E: StrdRq(0) RqSz(1024) StrdSz(256) RxCqeCmprss(0)
[ 45.710123] mlx5_core 0000:00:08.0 ens8: renamed from eth0
[ 60.992547] random: crng init done
[ 60.992552] random: 3 urandom warning(s) missed due to ratelimiting
Detach-host:
[84926.767411] mlx5_core 0000:08:00.2: enabling device (0000 -> 0002)
[84926.767514] mlx5_core 0000:08:00.2: firmware version: 14.27.1016
[84927.036146] mlx5_core 0000:08:00.2: MLX5E: StrdRq(0) RqSz(1024) StrdSz(256) RxCqeCmprss(0)
[84927.208523] mlx5_core 0000:08:00.2 ens1v1: renamed from eth0
Detach-guest:
<nothing>
So yes, these changes fix the issue here (and a bunch of others).
I'll open up an MP to get these changes into Ubuntu 20.04.
[1]: https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/3981
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
Fix Committed
Status in qemu package in Ubuntu:
Confirmed
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
` (7 preceding siblings ...)
2020-03-19 9:01 ` Christian Ehrhardt
@ 2020-03-19 9:08 ` Launchpad Bug Tracker
2020-03-20 6:28 ` Christian Ehrhardt
` (7 subsequent siblings)
16 siblings, 0 replies; 17+ messages in thread
From: Launchpad Bug Tracker @ 2020-03-19 9:08 UTC (permalink / raw)
To: qemu-devel
** Merge proposal linked:
https://code.launchpad.net/~paelzer/ubuntu/+source/qemu/+git/qemu/+merge/380874
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
Fix Committed
Status in qemu package in Ubuntu:
Confirmed
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
` (8 preceding siblings ...)
2020-03-19 9:08 ` Launchpad Bug Tracker
@ 2020-03-20 6:28 ` Christian Ehrhardt
2020-03-20 16:39 ` Launchpad Bug Tracker
` (6 subsequent siblings)
16 siblings, 0 replies; 17+ messages in thread
From: Christian Ehrhardt @ 2020-03-20 6:28 UTC (permalink / raw)
To: qemu-devel
** Changed in: qemu (Ubuntu)
Status: Confirmed => Fix Committed
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
Fix Committed
Status in qemu package in Ubuntu:
Fix Committed
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
` (9 preceding siblings ...)
2020-03-20 6:28 ` Christian Ehrhardt
@ 2020-03-20 16:39 ` Launchpad Bug Tracker
2020-03-23 11:41 ` Launchpad Bug Tracker
` (5 subsequent siblings)
16 siblings, 0 replies; 17+ messages in thread
From: Launchpad Bug Tracker @ 2020-03-20 16:39 UTC (permalink / raw)
To: qemu-devel
This bug was fixed in the package qemu - 1:4.2-3ubuntu3
---------------
qemu (1:4.2-3ubuntu3) focal; urgency=medium
* d/p/stable/lp-1867519-*: Stabilize qemu 4.2 with upstream
patches @qemu-stable (LP: #1867519)
-- Christian Ehrhardt <christian.ehrhardt@canonical.com> Wed, 18 Mar
2020 13:57:57 +0100
** Changed in: qemu (Ubuntu)
Status: Fix Committed => Fix Released
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
Fix Committed
Status in qemu package in Ubuntu:
Fix Released
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
` (10 preceding siblings ...)
2020-03-20 16:39 ` Launchpad Bug Tracker
@ 2020-03-23 11:41 ` Launchpad Bug Tracker
2020-03-23 11:45 ` Christian Ehrhardt
` (4 subsequent siblings)
16 siblings, 0 replies; 17+ messages in thread
From: Launchpad Bug Tracker @ 2020-03-23 11:41 UTC (permalink / raw)
To: qemu-devel
** Merge proposal linked:
https://code.launchpad.net/~paelzer/ubuntu/+source/qemu/+git/qemu/+merge/381033
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
Fix Committed
Status in qemu package in Ubuntu:
Fix Released
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
` (11 preceding siblings ...)
2020-03-23 11:41 ` Launchpad Bug Tracker
@ 2020-03-23 11:45 ` Christian Ehrhardt
2020-03-24 9:28 ` Launchpad Bug Tracker
` (3 subsequent siblings)
16 siblings, 0 replies; 17+ messages in thread
From: Christian Ehrhardt @ 2020-03-23 11:45 UTC (permalink / raw)
To: qemu-devel
** Merge proposal unlinked:
https://code.launchpad.net/~paelzer/ubuntu/+source/qemu/+git/qemu/+merge/381033
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
Fix Committed
Status in qemu package in Ubuntu:
Fix Released
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
` (12 preceding siblings ...)
2020-03-23 11:45 ` Christian Ehrhardt
@ 2020-03-24 9:28 ` Launchpad Bug Tracker
2020-03-25 5:59 ` Christian Ehrhardt
` (2 subsequent siblings)
16 siblings, 0 replies; 17+ messages in thread
From: Launchpad Bug Tracker @ 2020-03-24 9:28 UTC (permalink / raw)
To: qemu-devel
** Merge proposal linked:
https://code.launchpad.net/~paelzer/ubuntu/+source/qemu/+git/qemu/+merge/381033
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
Fix Committed
Status in qemu package in Ubuntu:
Fix Released
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
` (13 preceding siblings ...)
2020-03-24 9:28 ` Launchpad Bug Tracker
@ 2020-03-25 5:59 ` Christian Ehrhardt
2020-03-26 13:00 ` Launchpad Bug Tracker
2020-08-20 15:39 ` Thomas Huth
16 siblings, 0 replies; 17+ messages in thread
From: Christian Ehrhardt @ 2020-03-25 5:59 UTC (permalink / raw)
To: qemu-devel
** Merge proposal unlinked:
https://code.launchpad.net/~paelzer/ubuntu/+source/qemu/+git/qemu/+merge/381033
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
Fix Committed
Status in qemu package in Ubuntu:
Fix Released
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
` (14 preceding siblings ...)
2020-03-25 5:59 ` Christian Ehrhardt
@ 2020-03-26 13:00 ` Launchpad Bug Tracker
2020-08-20 15:39 ` Thomas Huth
16 siblings, 0 replies; 17+ messages in thread
From: Launchpad Bug Tracker @ 2020-03-26 13:00 UTC (permalink / raw)
To: qemu-devel
** Merge proposal linked:
https://code.launchpad.net/~paelzer/ubuntu/+source/qemu/+git/qemu/+merge/381033
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
Fix Committed
Status in qemu package in Ubuntu:
Fix Released
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1867519/+subscriptions
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug 1867519] Re: qemu 4.2 segfaults on VF detach
[not found] <158428174672.11238.3583143675239092561.malonedeb@soybean.canonical.com>
` (15 preceding siblings ...)
2020-03-26 13:00 ` Launchpad Bug Tracker
@ 2020-08-20 15:39 ` Thomas Huth
16 siblings, 0 replies; 17+ messages in thread
From: Thomas Huth @ 2020-08-20 15:39 UTC (permalink / raw)
To: qemu-devel
** Changed in: qemu
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1867519
Title:
qemu 4.2 segfaults on VF detach
Status in QEMU:
Fix Released
Status in qemu package in Ubuntu:
Fix Released
Bug description:
After updating Ubuntu 20.04 to the Beta version, we get the following
error and the virtual machines stucks when detaching PCI devices using
virsh command:
Error:
error: Failed to detach device from /tmp/vf_interface_attached.xml
error: internal error: End of file from qemu monitor
steps to reproduce:
1. create a VM over Ubuntu 20.04 (5.4.0-14-generic)
2. attach PCI device to this VM (Mellanox VF for example)
3. try to detaching the PCI device using virsh command:
a. create a pci interface xml file:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x2' />
</source>
</hostdev>
b. #virsh detach-device <VM-Doman-name> <pci interface xml file>
- Ubuntu release:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
- Package ver:
libvirt0:
Installed: 6.0.0-0ubuntu3
Candidate: 6.0.0-0ubuntu5
Version table:
6.0.0-0ubuntu5 500
500 http://il.archive.ubuntu.com/ubuntu focal/main amd64 Packages
*** 6.0.0-0ubuntu3 100
100 /var/lib/dpkg/status
- What you expected to happen:
PCI device detached without any errors.
- What happened instead:
getting the errors above and he VM stuck
additional info:
after downgrading the libvirt0 package and all the dependent packages to 5.4 the previous, version, seems that the issue disappeared
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