* Fw: [Bug 59971] New: tcp_info::tcpi_last_ack_recv = 0xFFFFFFF6
@ 2013-06-20 15:24 Stephen Hemminger
0 siblings, 0 replies; only message in thread
From: Stephen Hemminger @ 2013-06-20 15:24 UTC (permalink / raw)
To: netdev
Begin forwarded message:
Date: Thu, 20 Jun 2013 04:20:40 -0700
From: "bugzilla-daemon@bugzilla.kernel.org" <bugzilla-daemon@bugzilla.kernel.org>
To: "stephen@networkplumber.org" <stephen@networkplumber.org>
Subject: [Bug 59971] New: tcp_info::tcpi_last_ack_recv = 0xFFFFFFF6
https://bugzilla.kernel.org/show_bug.cgi?id=59971
Summary: tcp_info::tcpi_last_ack_recv = 0xFFFFFFF6
Product: Networking
Version: 2.5
Kernel Version: 2.6.37
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: Other
AssignedTo: shemminger@linux-foundation.org
ReportedBy: _kobold@ukr.net
Regression: No
tcp_info::tcpi_last_ack_recv becomes "negative" sometimes. -10 msec or 1 jiffy
in my case. Probably due to lack of synchronization in the kernel.
struct tcp_info tinfo = {0};
socklen_t len = sizeof(tinfo);
if (getsockopt(thesocket, SOL_TCP, TCP_INFO, (void*)&tinfo, &len) == 0)
printf("%u\n", tinfo.tcpi_last_ack_recv);
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2013-06-20 15:24 Fw: [Bug 59971] New: tcp_info::tcpi_last_ack_recv = 0xFFFFFFF6 Stephen Hemminger
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