Date: Mon, 3 Apr 2006 13:52:19 GMT From: Gosha <firever@gmail.com> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/95267: packet drops periodically appear Message-ID: <200604031352.k33DqJnV003733@www.freebsd.org> Resent-Message-ID: <200604031400.k33E0ZYC023990@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 95267
>Category: i386
>Synopsis: packet drops periodically appear
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-i386
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Apr 03 14:00:35 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator: Gosha
>Release: 6-STABLE
>Organization:
>Environment:
FreeBSD lagnaden 6.1-PRERELEASE FreeBSD 6.1-PRERELEASE #1: Thu Mar 16 18:36:39 MSK 2006 root@lagnaden:/usr/obj/usr/src/sys/LAGNADEN i386
>Description:
The system has 2 fxp interfaces, currently working w/o polling. load averages are about 0.5. When network load gets higher, packet drops start to appear:
netstat -d 1:
input (Total) output
packets errs bytes packets errs bytes colls drops
5490 0 352113 9819 0 14682926 0 32
5891 0 344871 10607 0 14543401 0 77
5655 0 351419 10578 0 14722751 0 53
5487 0 369978 9849 0 15743147 0 41
5840 0 359280 10594 0 15166142 0 62
5611 0 383657 10879 0 16205605 0 42
5946 0 353950 10571 0 14549457 0 84
5913 0 335259 11061 0 14052325 0 62
5631 0 360135 10048 0 14667789 0 66
5480 0 367820 10072 0 15327256 0 54
5674 0 363382 10356 0 14898610 0 51
5752 0 355121 10637 0 14684370 0 40
network performance degrades greatly when drops are present (latencies get very high). This problem didn't exist on 4.11-stable - it ran smoothly, w/o any drops under any loads.
>How-To-Repeat:
just wait until there are about 40 ftp/smb clients connected.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200604031352.k33DqJnV003733>