[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
I went back and retested this and it has already been fixed and released (commit fcbc05a1be0a7600153e78207dcb8b62fe753a4a), it was just not properly closed. mapl, If you are running an updated hardy guest running the 2.6.24-29 kernel this bug should not be a problem. Can you please provide information on which kernel you are using. If you are still encountering a problem with an updated kernel this is a new bug and we will need to gather more information to reproduce. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in Ubuntu. https://bugs.launchpad.net/bugs/458521 Title: kvm crash when using virtio for network, hardy guest -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
** Changed in: linux (Ubuntu Hardy) Status: In Progress = Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in Ubuntu. https://bugs.launchpad.net/bugs/458521 Title: kvm crash when using virtio for network, hardy guest -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
** Changed in: linux (Ubuntu Hardy) Status: Incomplete = In Progress -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in Ubuntu. https://bugs.launchpad.net/bugs/458521 Title: kvm crash when using virtio for network, hardy guest -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
@John, what is the status of this bug on Hardy/linux? ** Changed in: qemu Status: In Progress = Fix Released ** Changed in: linux (Ubuntu Hardy) Status: Triaged = Incomplete -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in Ubuntu. https://bugs.launchpad.net/bugs/458521 Title: kvm crash when using virtio for network, hardy guest -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
I installed Hardy as a guest on KVM on RH 5.4 using bridge networking. System will reboot as soon as I tried to pull in a file via either ftp, nfs or scp. Just changed back to virtual networking and the problem goes away. This severly limits my ability to have the guest be accessed externally. -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
This bug was fixed in the package qemu-kvm - 0.11.0-0ubuntu6.3 --- qemu-kvm (0.11.0-0ubuntu6.3) karmic-security; urgency=low * SECURITY UPDATE: linux = 2.6.25 guests (e.g. hardy) with virtio networking are subject to DoS by qemu-kvm application crash; the crash can be remotely triggered by a malicious user flooding any open network port (LP: #458521) - debian/patches/12_whitelist_host_virtio_networking_features.patch: fix accounting of virtio networking features available to make available to the guests - CVE-2009- * debian/kvm-ok: check for other common reasons why KVM might not be usable, LP: #452323 * debian/control: build-depend on libcurl devel, to allow booting from ISOs over http, LP: #453441 -- Dustin Kirkland kirkl...@ubuntu.com Thu, 29 Oct 2009 11:36:18 -0500 ** Changed in: qemu-kvm (Ubuntu Karmic) Status: Fix Committed = Fix Released -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
I enabled karmic-proposed and installed the qemu-kvm and kvm package from there. The problem goes away and my VMs are ok for 8 hours from now with virtio in network interfaces. thanks, Wagner Sartori Junior -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
I installed the package from proposed and it solved the problem for me. I ran the test provided in this bug report and some file tranfers with scp that used to crash and it worked flawlessly. -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
** Tags added: verification-done ** Tags removed: verification-needed -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
** Branch linked: lp:ubuntu/karmic-proposed/qemu-kvm -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
This bug was fixed in the package qemu-kvm - 0.11.0-0ubuntu6.3 --- qemu-kvm (0.11.0-0ubuntu6.3) karmic-security; urgency=low * SECURITY UPDATE: linux = 2.6.25 guests (e.g. hardy) with virtio networking are subject to DoS by qemu-kvm application crash; the crash can be remotely triggered by a malicious user flooding any open network port (LP: #458521) - debian/patches/12_whitelist_host_virtio_networking_features.patch: fix accounting of virtio networking features available to make available to the guests - CVE-2009- * debian/kvm-ok: check for other common reasons why KVM might not be usable, LP: #452323 * debian/control: build-depend on libcurl devel, to allow booting from ISOs over http, LP: #453441 -- Dustin Kirkland kirkl...@ubuntu.com Thu, 29 Oct 2009 11:36:18 -0500 ** Changed in: qemu-kvm (Ubuntu Karmic) Status: Fix Committed = Fix Released -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
Copied karmic-proposed to lucid. ** Changed in: qemu-kvm (Ubuntu) Status: Fix Committed = Fix Released ** Changed in: qemu-kvm (Ubuntu Karmic) Status: Fix Released = Fix Committed -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
I just added a new task, triaged/high against hardy's linux kernel. The Hardy linux kernel uses a backport of 2.6.25's virtio-net implementation that causes this bug. This virtio-net driver needs to be fixed such that hardy vm guests using virtio-net doesn't truncate packets and crash hypervisors. This appears to be fixed in virtio-net implementations later than 2.6.25, so I think we either need to sync this driver with a new release, or cherry-pick the fixes that solve this. Assigning to jj. Hopefully he can knock this out easily. :-Dustin ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Karmic) Status: New = Fix Released ** Also affects: linux (Ubuntu Hardy) Importance: Undecided Status: New ** Also affects: qemu-kvm (Ubuntu Hardy) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Hardy) Status: New = Triaged ** Changed in: linux (Ubuntu) Status: New = Fix Released ** Changed in: linux (Ubuntu Hardy) Importance: Undecided = High ** Changed in: qemu-kvm (Ubuntu Hardy) Status: New = Invalid ** Changed in: linux (Ubuntu Hardy) Assignee: (unassigned) = John Johansen (jjohansen) -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
Okay, I ran these tests myself, and verified that the current package in karmic-proposed solves the issue. Can I get some help from someone else out there? Ideally, the original bug reporter will be able to validate the fix. Trunet? -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
Accepted qemu-kvm into karmic-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance! ** Tags added: verification-needed -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
This bug is actually security-critical. I'm copying the Ubuntu-Security team, and updating the changelog for security update publication. Basically, a guest running virtio networking and a linux kernel = 2.6.25 (eg hardy) can be remotely DoS'd by any other user on the network flooding an open network port (eg 22) with traffic. The DoS causes crash in the kvm process. Because the guest's operating system was not shut down cleanly, unwritten buffers or dirty filesystem operations could yield data loss in the guest. Attaching a debdiff for the security team to upload to the security- prosed pocket. :-Dustin ** Attachment added: out http://launchpadlibrarian.net/34719238/out -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
** This bug has been flagged as a security vulnerability -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
I have a fix for this. Patch attached. Sent to upstream mailing list. I'm going to start rolling an SRU. :-Dustin ** Changed in: qemu-kvm (Ubuntu Karmic) Status: Confirmed = In Progress ** Attachment added: patch http://launchpadlibrarian.net/34603683/patch -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
** Description changed: Binary package hint: kvm I was running a kvm host with 5 virtual machines using jaunty. 1 running centos 5.4, 3 running karmic and 1 running hardy. I upgraded the host to karmic to test it and one of my virtual machines(the vm with hardy) crashs after some seconds of boot! I stack traced the kvm process and found a virtio-net truncating packet before process crash. No error in any log file. The VM just crash. I changed the model of network interface(the disk is still virtio) in VM.xml to rtl8139, redefined and started. The problem goes away. I don't know if it's a kvm bug or libvirt(regarding the bridge network) bug but definitely is a bug. All other VMs are running OK with virtio for both network and disk. === Karmic Release Notes: KVM Guest Crashes when Guest is Hardy and using Virtio Networking Ubuntu 8.04 LTS (Hardy) KVM guests using virtio networking may crash, when running on top of Ubuntu 9.10 (Karmic) hosts. As a workaround, such guests should use either e1000 or rtl839 as the networking model. A fix for the bug is currently in progress and should be addressed in an update to the qemu-kvm package in Karmic. === + + === + SRU Justification + + This bug is a regression from the kvm-84 package in 9.04. Karmic users hosting 8.04 KVM guests and using virtio networking *will* crash their VM when the network connection is saturated. As the virtual machine crashes without sync buffers, there could very well be data lost in the guest filesystem or memory. + I have posted the patch for review, and acked upstream: + * http://lists.gnu.org/archive/html/qemu-devel/2009-10/msg02495.html + I am bundling this fix with two other minor fixes, for Bug #452323 and Bug #453441. + + TEST CASE: + 1) Download and uncompress + * http://rookery.canonical.com/~kirkland/hardy.img.bz2 + 2) Download a bridged networking script + * http://rookery.canonical.com/~kirkland/bridge.sh + 3) Start the vm with virtio and bridged networking + * sudo /usr/bin/kvm -m 512 -net nic,model=virtio -net tap,script=bridge.sh -drive file=hardy.img,if=virtio,index=0,boot=on + 4) The VM's username and password are both ubuntu. + 5) In the guest, have nc listen on a port + * nc -lp 1234 /dev/null + 6) On your host, flood the guest with network traffic on that port + * cat /dev/urandom | nc -w 3 guest_ip 1234 + 7) Without this fix, the guest will crash immediately, saying: + * virtio-net truncating packet + 8) With the fix, you will be able to send the guest with data over the virtio network ad nauseum. I get about 6MB/s throughput. + + === -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
Patch attached for SRU review. Note that two other bug fixes will be uploaded along with this one. :-Dustin ** Attachment added: 458521.patch http://launchpadlibrarian.net/34609172/458521.patch -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
** Changed in: qemu Status: Confirmed = In Progress -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
Attaching the full debdiff, which fixes 3 bugs, for SRU review. :-Dustin ** Attachment added: sru.debdiff http://launchpadlibrarian.net/34615056/sru.debdiff ** Changed in: qemu-kvm (Ubuntu Karmic) Status: In Progress = Fix Committed -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
** Changed in: qemu-kvm (Ubuntu) Milestone: karmic-updates = lucid-alpha-1 -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
** Changed in: qemu-kvm (Ubuntu) Status: In Progress = Fix Committed ** Changed in: qemu-kvm (Ubuntu) Milestone: lucid-alpha-1 = None -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
I patched the hardy kernel and it's working great. Thanks for the fix. Wagner Sartori Junior -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
Re: [Bug 458521] Re: kvm crash when using virtio for network, hardy guest
On Thu, Oct 29, 2009 at 1:38 PM, trunet wsart...@gmail.com wrote: I patched the hardy kernel and it's working great. Huh? This isn't a patch for the hardy kernel... :-Dustin -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
** Also affects: ubuntu-release-notes Importance: Undecided Status: New ** Changed in: ubuntu-release-notes Status: New = In Progress ** Changed in: ubuntu-release-notes Assignee: (unassigned) = Dustin Kirkland (kirkland) -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
** Description changed: Binary package hint: kvm I was running a kvm host with 5 virtual machines using jaunty. 1 running centos 5.4, 3 running karmic and 1 running hardy. I upgraded the host to karmic to test it and one of my virtual machines(the vm with hardy) crashs after some seconds of boot! I stack traced the kvm process and found a virtio-net truncating packet before process crash. No error in any log file. The VM just crash. I changed the model of network interface(the disk is still virtio) in VM.xml to rtl8139, redefined and started. The problem goes away. I don't know if it's a kvm bug or libvirt(regarding the bridge network) bug but definitely is a bug. All other VMs are running OK with virtio for both network and disk. + + === + Karmic Release Notes: + + KVM Guest Crashes when Guest is Hardy and using Virtio Networking + + Ubuntu 8.04 LTS (Hardy) KVM guests using virtio networking may crash, + when running on top of Ubuntu 9.10 (Karmic) hosts. + + As a workaround, such guests should use either e1000 or rtl839 as the + networking model. A fix for the bug is currently in progress and should + be addressed in an update to the qemu-kvm package in Karmic. + + === -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
** Changed in: ubuntu-release-notes Status: In Progress = Fix Committed -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
Okay, I can reproduce this very easily by saturating the guest's INCOMING network connection, with: u...@guest$ nc -lp 1234 /dev/null and u...@host$ cat /dev/urandom | nc -w 3 guest_ip 1234 In less than a second of sending, the vm crashes with: virtio-net truncating packet Note that I have not reproduced the problem saturating the guest's OUTGOING network. I have uploaded a full-updated Ubuntu 8.04.3 (Hardy) image (user=ubuntu,pw=ubuntu) that I'm using to reproduce this at: * http://rookery.canonical.com/~kirkland/hardy.img.bz2 :-Dustin -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 458521] Re: kvm crash when using virtio for network, hardy guest
Documented at https://wiki.ubuntu.com/KarmicKoala/ReleaseNotes#Ubuntu%208.04%20LTS%20crashes%20as%20a%20KVM%20guest%20when%20using%20virtio%20networking: Ubuntu 8.04 LTS using virtio networking as a KVM guest may crash when running on an Ubuntu 9.10 host. As a workaround, such guests should use either e1000 or rtl839 as the networking model. A fix for the bug is currently in progress and will be included in an update to the qemu-kvm package in Karmic. (Bug:458521) ** Changed in: ubuntu-release-notes Status: Fix Committed = Fix Released -- kvm crash when using virtio for network, hardy guest https://bugs.launchpad.net/bugs/458521 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
