Re: kern/165863

2012-04-10 Thread Ryan Stone
2012/4/10 Gleb Smirnoff : >  Thanks, Ryan! (snip) > Looks okay from my viewpoint. Have you stress tested it? My snap patch > definitely had problems, AFAIR. > > If this patch fixes panics observed by kern/165863 and passes stress > testing, then it should be committed ASAP, and shouldn't depend on

strange ping response times...

2012-04-10 Thread Luigi Rizzo
I noticed this first on a 10G interface, but now there seems to be a similar issue on the loopback. Apparently a ping -f has a much lower RTT than one with non-zero delay between transmissions. Part of the story could be that the flood version invokes a non-blocking select. On the other hand, ping

Re: strange ping response times...

2012-04-10 Thread Julian Elischer
On 4/10/12 3:52 PM, Luigi Rizzo wrote: I noticed this first on a 10G interface, but now there seems to be a similar issue on the loopback. Apparently a ping -f has a much lower RTT than one with non-zero delay between transmissions. Part of the story could be that the flood version invokes a non

Re: strange ping response times...

2012-04-10 Thread Luigi Rizzo
On Tue, Apr 10, 2012 at 07:05:00PM -0400, Barney Wolff wrote: > CPU cache? > Cx states? > powerd? powerd is disabled, and i am going down to C1 at most > sysctl -a | grep cx hw.acpi.cpu.cx_lowest: C1 dev.cpu.0.cx_supported: C1/1 C2/80 C3/104 which shouldn't take so much. S

Re: strange ping response times...

2012-04-10 Thread Barney Wolff
CPU cache? Cx states? powerd? On Tue, Apr 10, 2012 at 03:40:27PM -0700, Julian Elischer wrote: > On 4/10/12 3:52 PM, Luigi Rizzo wrote: > > I noticed this first on a 10G interface, but now there seems > > to be a similar issue on the loopback. > > > > Apparently a ping -f has a much lower RTT than

RE: Removing an IPv6 address does not remove NDP entries on that subnet

2012-04-10 Thread Li, Qing
> > [rstone@vm-head ~]ndp -a > Neighbor Linklayer Address Netif ExpireS > Flags > 1::2 08:00:27:1e:b8:16em0 7sR > fe80::a00:27ff:fefa:8732%em0 08:00:27:fa:87:32em0 permanent R > rstone@vm-head ~]uname -a > Fre

Re: strange ping response times...

2012-04-10 Thread Jason Hellenthal
On Wed, Apr 11, 2012 at 12:52:57AM +0200, Luigi Rizzo wrote: > I noticed this first on a 10G interface, but now there seems > to be a similar issue on the loopback. > > Apparently a ping -f has a much lower RTT than one with non-zero > delay between transmissions. Part of the story could be that