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Date:      Thu, 12 May 2022 17:41:51 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 237915] "netstat -i" for ixl/lagg shows idrop as 18446744073709551612 (-4) - incorrectly intialized counters?
Message-ID:  <bug-237915-227-IBEsAdpoqZ@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-237915-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-237915-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D237915

Brian Poole <brian90013@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #233858|0                           |1
        is obsolete|                            |

--- Comment #3 from Brian Poole <brian90013@gmail.com> ---
Created attachment 233877
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D233877&action=
=3Dedit
Revised v2 patch to fix counters

My apologies but the first patch should not be used. It placed the
vsi_reset_stats() call in initialize_vsi() which gets called every time the
interface comes up. Someone watching the interface with 'netstat -I xxx -w =
1'
will see a jump near 2^64 as the counters are reset.

Therefore I moved the vsi_reset_stats() call to if_attach_post() where it is
right next to the pf_reset_stats() call. This function is not called when an
interface flaps down and then back up.

I also removed the call to update_stats_counters() in if_attach_post(). Now=
 the
only call to update_stats_counters() is in if_timer(). This matches the
behavior of the ice driver and produces the expected results in my testing.
Elapsed metrics are all 0 on boot and periodic metrics don't jump when an
interface comes up.

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