Date: Mon, 15 Sep 2014 20:36:02 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 193669] New: [ipfw][dummynet] "copy_obj (WARN)" kernel warning for ipfw pipe show <num> Message-ID: <bug-193669-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193669 Bug ID: 193669 Summary: [ipfw][dummynet] "copy_obj (WARN)" kernel warning for ipfw pipe show <num> Product: Base System Version: 9.3-RELEASE Hardware: amd64 OS: Any Status: Needs Triage Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: major12@gmail.com Kernel emits a lot of warnings for ipfw pipe show <number> Warnings looks like copy_obj (WARN) type 2 flowset 133077 have 28 need 120 copy_obj (WARN) type 4 inst 66541 have 92 need 96 Seems that code responsible for this error is in ip_dummynet.c if (have < o->len || o->len == 0 || o->type == 0) { D("(WARN) type %d %s %d have %d need %d", o->type, msg, i, have, o->len); return 1; } Warnings are shown after some traffic passed via pipe. And command like 'ipfw pipe show' - emits no warnings. So warning are observed only in case if particular pipe or pipes list is shown. How to reproduce: ----------------- Install 9.3-RELEASE Load ipfw.ko and dummynet.ko Create some pipes ipfw pipe 1 config bw 5bit/s ipfw pipe 2 config bw 5bit/s Create pipe with mask ipfw pipe 3 config bw 5bit/s mask src-ip 0xffffffff Configure ipfw ipfw add 100 pipe 3 ip from any to me Disable pipe expiration sysctl net.inet.ip.dummynet.expire=0 Then generate some traffic. For my case it was enough to have 260+ entries in pipe. Now command like ipfw pipe show 3 or ipfw pipe show 1,3 will emit few kernel warnings in console and in /var/log/messages. And just 'ipfw pipe show' works ok. -- You are receiving this mail because: You are the assignee for the bug.
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