Bug 516022
Summary: | virtio-net fails to transmit any packets, gives "Network is unreachable" errors | ||
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Product: | [Fedora] Fedora | Reporter: | Richard W.M. Jones <rjones> |
Component: | qemu | Assignee: | Glauber Costa <gcosta> |
Status: | CLOSED RAWHIDE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | rawhide | CC: | berrange, dwmw2, gcosta, itamar, jaswinder, markmc, mbooth, mst, virt-maint |
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | qemu-0.10.91-0.5.rc1.fc12 | Doc Type: | Bug Fix |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2009-08-07 09:25:51 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | |||
Bug Blocks: | 498969 |
Description
Richard W.M. Jones
2009-08-06 12:30:07 UTC
Also tried the newest kernel, same problem: 2.6.31-0.125.rc5.git2.fc12.x86_64 Oh, man First, I haven't been able to reproduce with a 'normal' guest - not using slirp, vmchannel, the same nic config commands libguestfs uses etc. etc. But I can reproduce with libguestfs, so I bisected it The first commit that causes this regression is: http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=566e2d3e88 That's MSI support. Okay, well using e.g. '-nic vectors=0' works around that Well, not so easy as that, there's actually another regression. vectors=0 works right up until this commit: http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=9f8bd0421d That's some slirp re-factoring i.e. we've two regressions to investigate here, which we've only managed to reproduce with libguestfs so far Fun! Heroic! Okay, this fixes the slirp regression: * Fri Aug 7 2009 Mark McLoughlin <markmc> - 2:0.10.91-0.5.rc1 - Fix virtio_net with -net user (#516022) Now it works with -net vectors=0, but broken otherwise - i.e. there's still something wrong with MSI Okay, I can't reproduce the MSI issue now, perhaps I was confused and it has since been fixed Closing for now Thanks Mark. f12-alpha tag request: https://fedorahosted.org/rel-eng/ticket/2060 |