search for: mbufs

...256, 0, 9424, 3376,208094689, 0, 0 15-05-2013-09-09.txt:mbuf_packet: 256, 0, 9434, 2982,208172465, 0, 0 15-05-2013-10-09.txt:mbuf_packet: 256, 0, 9444, 3100,208270369, 0, 0 and root at freenas:/root/memory-mon # grep "mbufs in use" * 14-05-2013-14-09.txt:58444/5816/64260 mbufs in use (current/cache/total) 14-05-2013-15-09.txt:58455/5805/64260 mbufs in use (current/cache/total) 14-05-2013-16-09.txt:58464/5796/64260 mbufs in use (current/cache/total) 14-05-2013-17-09.txt:58475/5785/64260 mbufs in use (current/cache...

Ive been googling quite a bit now for problems with running out of mbuf clusters. Im basically sending a 30k datachunk down 1000-4000 connections, but 1000 is more than enough to quickly fill upp 8192 mbuf clusters. I also tried setting maximum amount of mbuf clusters to 65536, but that only made the box hard-wire 86MB of 96MB RAM, making it just as unsuable as a dead machine. Of course, when the

...for viewing on my TV via the multimedia/plexmediaserver port. This software runs in a jail and gets the actual files from my NAS via NFSv4. It's a pretty simple setup and sits idle unless I am watching TV. Between the 10.0-BETAs and the 10.0-RC1 did something network related that could affect mbufs change? Ever since I upgraded this machine to RC1 it has been "crashing", which I diagnosed as actually being an mbuf exhaustion. Raising the mbufs brings it back to life, and it does mention the exhaustion on the system console. Last night, for example, I rebooted the machine and it has...

...8 195 processes: 2 running, 193 sleeping CPU states: 26.2% user, 0.0% nice, 10.0% system, 5.0% interrupt, 58.8% idle Mem: 1912M Active, 995M Inact, 421M Wired, 132M Cache, 199M Buf, 27M Free Swap: 2048M Total, 34M Used, 2014M Free, 1% Inuse Following is the output of netstat -m 3797/14672/26624 mbufs in use (current/peak/max): 3791 mbufs allocated to data 2 mbufs allocated to fragment reassembly queue headers 4 mbufs allocated to socket names and addresses 3704/6656/6656 mbuf clusters in use (current/peak/max) 16980 Kbytes allocated to network (85% of mb_map in use) 1065...

Andre, Are you going to have time to MFC things from -current for auto-tuning -stable before 9.2? I fear (maybe unnecessarily?) that we are about to ship yet another release that can't do basic 10gigE when sufficient memory exists. If you don't have time, then let me know and I'll see what I can do. -- Alfred Perlstein VP Software Engineering, iXsystems

Hi there, I have some DDOS(?) attack on my router going where my apache HTTP server is flooded with short-timed connections from some host. This results in LOTS of sockets in TIME_WAIT/LAST_ACK/CLOSING states and eventually I'm out of mbufs, which, consequently means I can't even connect to the router from LAN. The kern.ipc.nmbclusters is 2560, (I guess high enough for router with DSL connection). After some time all mbufs are depleted (system says "All mbuf cluster exhausted"). However, unexpectedly the system panic...

...t with mild to moderate TCP activity on HTTP and other sorts of ports returns zero results back unless you are root. [site@Eden ~]$ netstat -i reports netstat: kvm not available: /dev/mem: Permission denied ifnet: symbol not defined [site@Eden ~]$ netstat -an [site@Eden ~]$ netstat -m 377/823/1200 mbufs in use (current/cache/total) 64/378/442/32768 mbuf clusters in use (current/cache/total/max) 64/315 mbuf+clusters out of packet secondary zone in use (current/cache) 2/386/388/12800 4k (page size) jumbo clusters in use (current/cache/total/max) 0/0/0/6400 9k jumbo clusters in use (current/cache/tot...

...client I see the intr_queue_maxlen continue to grow until it again reaches the new maximum. Another datapoint if I don't send the data thru the gre tunnel, but only thru the vpn I don't see this problem. I've looked at the gre code til I am blue in the face and can't see where mbufs were not being freed when the quelen is full. If anybody could give some direction as where to look or how to better trouble shoot this problem it would be greatly appreciated. Thanks for being such a great list, Steve -- "They that give up essential liberty to obtain temporary safety,...

I first met this problem when our (60 students) internetgateway refused to boot its new kernel, it was a 4.7-RELEASE. Then i loaded the old kernel and went home to check if my 4.8-STABLE does likewise. And the answer was yes! Both kernels were GENERIC + these options taken from the dummynet man pages: options DUMMYNET options NMBCLUSTERS options HZ When i boot the machine

.../18/2004@03:47:29 GMT Initial report <https://ialert.idefense.com/KODetails.jhtml?irId=207650> ID#207650: FreeBSD Memory Buffer Exhaustion Denial of Service Vulnerability (iDEFENSE Exclusive): Remote exploitation of a denial of service (DoS) vulnerability in FreeBSD's memory buffers (mbufs) could allow attackers to launch a DoS attack. By sending many out-of-sequence packets, a low bandwidth denial of service attack is possible against FreeBSD. When the targeted system runs out of memory buffers (mbufs), it is no longer able to accept or create new connections. Analysis: (iDEFENSE...

I finally got a 10G card that is recognized by FreeBSD (9.1-stable): ... ix0: <Intel(R) PRO/10GbE PCI-Express Network Driver, Version - 2.4.8> port 0xecc0-0xecdf mem 0xd9e80000-0xd9efffff,0xd9ff8000-0xd9ffbfff irq 40 at device 0.0 on pci4 ix0: Using MSIX interrupts with 9 vectors ix0: RX Descriptors exceed system mbuf max, using default instead! ix0: Ethernet address: 90:e2:ba:29:c0:54

...48 for (i = 0, m_new = sc->xn_rx_batch; m_new; 49 i++, sc->xn_rx_batchlen--, m_new = next) { 50 [...] 70 rx_pfn_array[i] = vtomach(mtod(m_new,vm_offset_t)) >> PAGE_SHIFT; The above call fails gives -1 (i.e., an invalid virtual -> machine translation) time since some mbufs are placed on the same page. 71 72 /* Remove this page from pseudo phys map before passing back to Xen. */ 73 xen_phys_machine[((unsigned long)m_new->m_ext.ext_args >> PAGE_SHIFT)] 74 = INVALID_P2M_ENTRY; ... because this invalidates that mapping. I therefore get every seco...

Dear SIR's On Tru64 4.0F i get do you know how I can avoid it? Rgds Henrik PS. What should I expect on LDAP (got an error using --with-ldap): ============================================================================ ==== Compiling nmbd/nmbd_nameregister.c In file included from include/includes.h:258, from nmbd/nmbd_nameregister.c:25: /usr/include/net/if.h:182:

...Details.jhtml?irId=207650>https://ialert.idefense.com/KODetails.jhtml?irId=207650; >ID#207650: >FreeBSD Memory Buffer Exhaustion Denial of Service Vulnerability >(iDEFENSE Exclusive): Remote exploitation of a denial of service (DoS) >vulnerability in FreeBSD's memory buffers (mbufs) could allow attackers >to launch a DoS attack. > >By sending many out-of-sequence packets, a low bandwidth denial of >service attack is possible against FreeBSD. When the targeted system >runs out of memory buffers (mbufs), it is no longer able to accept or >create new conn...

Dear List, the attached patch makes rsync of local folders almost as fast as cp. when rsync client and server has detected that they are working in local_server mode, they use local_socket, a unix domain socket pair, to pass the file descriptors of the synced files. the server uses the file descriptor it receives from the client to fast copy from src to dst file. on completion of every file fast

On 9/8/2015 11:54 PM, Xie, Huawei wrote: > On 9/8/2015 11:39 PM, Stephen Hemminger wrote: >> On Fri, 4 Sep 2015 08:25:05 +0000 >> "Xie, Huawei" <huawei.xie at intel.com> wrote: >> >>> Hi: >>> >>> Recently I have done one virtio optimization proof of concept. The >>> optimization includes two parts: >>> 1) avail ring

On 9/8/2015 11:54 PM, Xie, Huawei wrote: > On 9/8/2015 11:39 PM, Stephen Hemminger wrote: >> On Fri, 4 Sep 2015 08:25:05 +0000 >> "Xie, Huawei" <huawei.xie at intel.com> wrote: >> >>> Hi: >>> >>> Recently I have done one virtio optimization proof of concept. The >>> optimization includes two parts: >>> 1) avail ring

Hello everyone, I am trying to tweak some of the sysctl tunables for the ix (ixgbe) driver in FreeBSD 9.2 since I am experiencing less than ideal performance and it seems like I can't find any: # sysctl -a | grep -i ixgbe device ixgbe I am running 9.2-RC4. Any input appreciated. Thanks, -- Rumen Telbizov Unix Systems Administrator <http://telbizov.com>

Hi, I have a Dell T710 with 4 X 10G ethernet interfaces (2 X Dual port Intel 82599 cards). It is running FreeBSD RELENG_8 last updated on July 13. What I see is packet loss (0 - 40%) on IPv6 packets in vlans, when the machine is not the originator of the packets. Let me try to describe a little more. If a neigbouring machine ping6 it, there will be packet loss. If it act as a router for ipv6,

Hi, I've encountered a strange problem while using FreeBSD 6.0 for our local mirror (mirror.math.uni-bielefeld.de) and thus is providing access via ftp, http, rsync and cvsup (all local and remote). The system crashes periodically with a kernel panic (panic: sbdrop). The uptimes between two crashes are going from a few hours to a few weeks. The system is a i386, Intel Pentium 4 based with