Bug 1291825 - iproute: 'ip addr flush' failed to send flush request: Cannot assign requested address
iproute: 'ip addr flush' failed to send flush request: Cannot assign requeste...
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: iproute (Show other bugs)
x86_64 Linux
high Severity medium
: rc
: ---
Assigned To: Phil Sutter
Jaroslav Aster
Mirek Jahoda
Depends On: 1276591
Blocks: 1301628 1313485
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Reported: 2015-12-15 11:26 EST by Phil Sutter
Modified: 2016-11-03 19:37 EDT (History)
7 users (show)

See Also:
Fixed In Version: iproute-3.10.0-56.el7
Doc Type: Deprecated Functionality
Doc Text:
The *libnetlink* library contained in the _iproute-devel_ package has been deprecated. The user should use the *libnl* and *libmnl* libraries instead.
Story Points: ---
Clone Of: 1276591
Last Closed: 2016-11-03 19:37:42 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Comment 3 Jaroslav Aster 2016-05-19 12:26:56 EDT
Hi Phil,

could you be more specific where is the issue on rhel-7? My test for rhel-6 does not work on rhel-7.

I see these messages on the old version and nothing on the new version of iproute. Are these messages a one of the aspect of the bug?

:: [  BEGIN   ] :: Try to flush test-iface :: actually running 'ip addr flush dev test-iface |& tee flush.log'
Dump was interrupted and may be inconsistent.
Dump was interrupted and may be inconsistent.
Dump was interrupted and may be inconsistent.
Comment 4 Phil Sutter 2016-05-20 10:05:12 EDT
Hi Jaroslav,

Yes, the error message is what I had in mind when writing this bug's description. The additional commit to backport was:

commit d25ec03e1dce4cf22093a9f7106e9401ab5bf066
Author: Phil Sutter <phil@nwl.cc>
Date:   Tue Nov 24 15:31:02 2015 +0100

    ipaddress: fix ipaddr_flush for Linux >= 3.1
    Linux version 3.1 introduced a consistency check for netlink dumps in
    commit 670dc28 ("netlink: advertise incomplete dumps"). This bites
    iproute2 when flushing more addresses than can fit into a single
    RTM_GETADDR response. To silence the spurious error message "Dump was
    interrupted and may be inconsistent.", advise rtnl_dump_filter_l() to
    not care about NLM_F_DUMP_INTR.
    Signed-off-by: Phil Sutter <phil@nwl.cc>

What does "does not work on rhel-7" mean precisely? If I'm not mistaken, iproute-3.10.0-55.el7 should behave just like described in the original bug, namely printing "Failed to send flush request: Cannot assign requested address" error message when flushing many ip addresses. Do you disagree?

Thanks, Phil
Comment 5 Jaroslav Aster 2016-05-20 11:12:33 EDT
Hi Phil,

"does not work on rhel-7" means my test does not work on rhel-7, because I use this code

rlAssertNotGrep "Failed to send flush request" flush.log
rlAssertNotGrep "Flush terminated" flush.log

Iproute on rhel-7 does not print these messages. It prints only "Dump was interrupted and may be inconsistent." I'm going to fix my test.
Comment 8 errata-xmlrpc 2016-11-03 19:37:42 EDT
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.


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