Bug 83 - We sometimes get an "Unexpected sequence number" message during netlink configuration
Summary: We sometimes get an "Unexpected sequence number" message during netlink confi...
Status: RESOLVED FIXED
Alias: None
Product: passt
Classification: Unclassified
Component: pasta (show other bugs)
Version: unspecified
Hardware: All Linux
: Normal blocker
Assignee: David Gibson
URL:
Depends on:
Blocks:
 
Reported: 2024-03-20 02:31 UTC by David Gibson
Modified: 2024-03-21 01:00 UTC (History)
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Description David Gibson 2024-03-20 02:31:09 UTC 
Under certain circumstances, which we haven't yet characterized, but might include both kernel version and network configuration, pasta fails to start with the error
    netlink: Unexpected sequence number (6 != 10)

The numbers 6 != 10 have been the same in all examples so far seen.

This showed up as a secondary problem from the podman bug:
    https://github.com/containers/podman/issues/22052

It shows up in various Fedora CI runs, e.g.:
    https://artifacts.dev.testing-farm.io/5a6e499c-27e0-4940-b027-9195a6499c86/

And in this Fedora podman bug:
    https://bugzilla.redhat.com/show_bug.cgi?id=2270257
Comment 1 David Gibson 2024-03-20 04:21:51 UTC 
Ok, I think this is caused by a bug in f919dc7a4b1c ("conf, netlink: Don't require a default route to start").  I'm doing a test run on a fix right now.
Comment 2 David Gibson 2024-03-21 01:00:23 UTC 
Updates from https://github.com/containers/podman/issues/22052 seem to indicate that my patch worked.  Closing.
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