On Thu, Dec 18, 2014 at 06:41:58PM -0700, David Ahern wrote: > On 12/18/14 3:13 PM, David Ahern wrote: > >Are you seeing something different? > > I put a tracepoint in the ipv4/ipv6 add/del address code. The IPv4 one > prints the address using pi4 and pI4 and the IPv6 using pi6, pI6 and pI6c.
apart from your tracepoints, is there another tracepoint using this? I couldn't find any.. I dont think it's a problem.. just wanted to try it ;-) thanks, jirka > > Using ifconfig eth1 1.2.3.4/24 > > I get this for trace_pipe which uses the in-kernel printf code: > > root@localhost:/sys/kernel/debug/tracing/events# cat ../trace_pipe > ifconfig-601 [000] .... 710.660611: ipv4_del_addr: pI4=1.2.3.4 > pi4=001.002.003.004 > ifconfig-602 [000] .... 720.833559: ipv4_add_addr: pI4=1.2.3.4 > pi4=001.002.003.004 > ifconfig-602 [000] .Ns. 720.833966: ipv6_add_addr: > pi6=fe80000000000000000202fffe020211 > pI6=fe80:0000:0000:0000:0002:02ff:fe02:0211 pI6c=fe80::2:2ff:fe02:211 > ifconfig-602 [000] .... 720.835413: ipv4_del_addr: pI4=1.2.3.4 > pi4=001.002.003.004 > ifconfig-602 [000] .N.. 720.835451: ipv4_add_addr: pI4=1.2.3.4 > pi4=001.002.003.004 > > > And this using perf: > root@localhost:~# perf record -a -e ipv4:* -e ipv6:* --no-buffering | perf > --no-pager script > > ifconfig 601 [000] 710.912862: ipv4:ipv4_del_addr: pI4=1.2.3.4 > pi4=001.002.003.004 > ifconfig 602 [000] 721.090776: ipv4:ipv4_add_addr: pI4=1.2.3.4 > pi4=001.002.003.004 > ifconfig 602 [000] 721.091177: ipv6:ipv6_add_addr: > pi6=fe80000000000000000202fffe020211 > pI6=fe80:0000:0000:0000:0002:02ff:fe02:0211 pI6c=fe80::2:2ff:fe02:211 > ifconfig 602 [000] 721.092626: ipv4:ipv4_del_addr: pI4=1.2.3.4 > pi4=001.002.003.004 > ifconfig 602 [000] 721.092648: ipv4:ipv4_add_addr: pI4=1.2.3.4 > pi4=001.002.003.004 > > (Don't be fooled by the differing timestamps; data collected from both using > the same exact command. timestamp differences are perf vs tracing.) > > which suggest with the patch perf output matches tracing. > > David > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
