[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
** Changed in: qemu 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 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: b. #virsh detach-device - 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
[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
** 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: b. #virsh detach-device - 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
[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
** 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: b. #virsh detach-device - 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
[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
** 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: b. #virsh detach-device - 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
[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
** 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: b. #virsh detach-device - 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
[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
** 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: b. #virsh detach-device - 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
[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
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 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: b. #virsh detach-device - 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
[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
** 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: b. #virsh detach-device - 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
[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
** 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: b. #virsh detach-device - 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
[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
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 :08:00.2: enabling device ( -> 0002) Attach-guest: [ 45.199920] pci :00:08.0: [15b3:1016] type 00 class 0x02 [ 45.200374] pci :00:08.0: reg 0x10: [mem 0x-0x000f 64bit pref] [ 45.201358] pci :00:08.0: enabling Extended Tags [ 45.202726] pci :00:08.0: 0.000 Gb/s available PCIe bandwidth, limited by Unknown speed x0 link at :00:08.0 (capable of 63.008 Gb/s with 8 GT/s x8 link) [ 45.208316] pci :00:08.0: BAR 0: assigned [mem 0x1-0x1000f 64bit pref] [ 45.256566] mlx5_core :00:08.0: enabling device ( -> 0002) [ 45.262103] mlx5_core :00:08.0: firmware version: 14.27.1016 [ 45.544010] mlx5_core :00:08.0: MLX5E: StrdRq(0) RqSz(1024) StrdSz(256) RxCqeCmprss(0) [ 45.710123] mlx5_core :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 :08:00.2: enabling device ( -> 0002) [84926.767514] mlx5_core :08:00.2: firmware version: 14.27.1016 [84927.036146] mlx5_core :08:00.2: MLX5E: StrdRq(0) RqSz(1024) StrdSz(256) RxCqeCmprss(0) [84927.208523] mlx5_core :08:00.2 ens1v1: renamed from eth0 Detach-guest: 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: b. #virsh detach-device - 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
[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
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: b. #virsh detach-device - 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
[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
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: b. #virsh detach-device - 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
[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
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: b. #virsh detach-device - 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
[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
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:
b. #virsh detach-device
- 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
[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
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: b. #virsh detach-device - 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
[Bug 1867519] Re: qemu 4.2 segfaults on VF detach
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: b. #virsh detach-device - 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
