freebsd-net Digest, Vol 364, Issue 1
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Today's Topics:
1. Re: Bug in tcp_output? (Rui Paulo)
2. sftp server with speed throttling (Dan Naumov)
3. Re: sftp server with speed throttling (Vincent Hoffman)
4. Re: why zero-copy sockets(9) are not popular? (Alexander Bubnov)
5. Current problem reports assigned to freeb...@FreeBSD.org
(FreeBSD bugmaster)
----------------------------------------------------------------------
Message: 1
Date: Sun, 21 Mar 2010 13:15:27 +0000
From: Rui Paulo <rpa...@freebsd.org>
Subject: Re: Bug in tcp_output?
To: Bruce Evans <br...@optusnet.com.au>
Cc: freeb...@freebsd.org, Chris Harrer <cjha...@comcast.net>
Message-ID: <8FEEC471-81FB-4FCA...@freebsd.org>
Content-Type: text/plain; charset=windows-1252
On 21 Mar 2010, at 07:17, Bruce Evans wrote:
> On Sat, 20 Mar 2010, Rui Paulo wrote:
>
>> On 18 Mar 2010, at 20:19, Chris Harrer wrote:
>>>
>>> In the following block of code, running on a x86_64 platform, I believe that
>>> cwin should be declared as an int:
>>> ...
>>> else {
>>>
>>> long cwin; ß-- Should be an int
>>> ...
>>> if (len > 0) {
>>>
>>> cwin = tp->snd_cwnd -
>>>
>>> (tp->snd_nxt - tp->sack_newdata) -
>>>
>>> sack_bytes_rxmt;
>>>
>>> if (cwin < 0)
>>>
>>> cwin = 0;
>>>
>>> len = lmin(len, cwin);
>>>
>>> }
>>>
>>> }
>>>
>>> }
>>>
>>>
>>>
>>> Consider the case where:
>>>
>>> sack_rxmit = 0
>>>
>>> sack_bytes_rxmt = 0x2238
>>>
>>> off = 0
>>>
>>> len =0xa19c
>>>
>>> tp->snd_cwnd = 0x2238
>>>
>>> tp->snd_nxt = 0xdd6d7974
>>>
>>> tp->sack_newdata = 0xdd6d6858
>>>
>>> In this case cwin evaluates to 0x00000000ffffe37c, which is not <0, but
>>> instead huge. This causes the remaining data on the socket’s so->so_snd
>>> buffer to be sent to the network causing more problems at the receiver which
>>> is already dropping frames.
>>
>> I see. This is most likely a bug. Can you send-pr so this doesn't get lost?
>
> What bug do you see? This is most likely not a bug. I only see the
> following bugs
> - the suggestion to increase the fragility of the code by changing cwin to
> int
> - lots of whitespace lossage
> - the style bug in the declaration of cwin (nested declaration)
> - lots fragile but working code. It depends on the machine being a normal
> 2's complement one. It would fail on normal 1's complement machines and
> on abnormal 2's complement ones, but so would many other things in the
> kernel.
> - type and arithmetic errors that are not made at runtime resulting in a
> value that wouldn't work, though the runtime value would.
>
> Relevant code quoted again, with the whitespace fixed:
>
>>> cwin = tp->snd_cwnd -
>>> (tp->snd_nxt - tp->sack_newdata) -
>>> sack_bytes_rxmt;
>
> On 64-bit machines, with the above values, this is:
>
> rhs = (u_long)0x2238UL -
> ((tcp_seq)0xdd6d7974 -
> (tcp_seq)0xdd6d6858) -
> (int)0x2238;
> = (u_long)0x2238UL -
> ((uint32_t)0xdd6d7974 -
> (uint32_t)0xdd6d6858) -
> (int)0x2238;
> = (u_long)0x2238UL -
> (u_int)0x111c -
> (int)0x2238;
> = (u_long)0x111c -
> (int)0x2238;
> = (u_long)0x111c -
> (u_long)0x2238;
> = (u_long)0xffffffffffffeee4;
> cwin = (long)rhs;
> = -(long)0x111c;
>
> I might have made arithmetic errors too, but I'm sure that I got the
> conversions essentially correct. On machines with 64-bit u_longs,
> almost everything is evaluated modulo 2^64. This gives a large positive
> value, but not one with the top bits set up to only the 31st as would
> happen on machines with 32-bit u_longs. Then the final conversion to
> long gives a negative value.
Right. I made some bad calculations.
>
> This is fragile, but it is a standard 2's complement hack. It would
> fail mainly on normal ones complement machines when the rhs is
> (u_long)0xFF...FF. Then the lhs is probably negative 0, which is
> not less than 0.
>
> The fragility is essentially the same on machines with 32-bit u_longs.
> Almost everything is evaluated modulo 2^32...
>
> Using 64-bit u_longs for tp->snd_cwnd (and thus for almost the entire
> calculation) is exessive but doesn't cause any problems.
>
> Using a signed type for sack_bytes_rxmt asks for sign extension bugs but
> doesn't get them. Here it is promoted to a u_long so there are no
> sign extension bugs for it here.
>
> Using a signed type for cwin is essential for the comparison of cwin
> with 0 to work.
Right.
> This signed type should have the same size as the rhs
> to avoid even more fragility (if it were int, then you would have to
> worry about the value being changed to a non-working value by the
> implementation-defined conversion of the rhs to cwin not just for
> values larger than LONG_MAX but also for ones larger than INT_MAX.
> `int' should work in practice. This and other things depend on the
> difference of the tcp_seq's not being anywhere near as large as
> 0x7fffffff).
I assumed that Chris saw a problem with this code after being hit by some TCP/IP interop issue. Was this the case?
--
Rui Paulo
------------------------------
Message: 2
Date: Sun, 21 Mar 2010 15:53:16 +0200
From: Dan Naumov <dan.n...@gmail.com>
Subject: sftp server with speed throttling
To: freebsd-...@freebsd.org, freeb...@freebsd.org
Message-ID:
<cf9b1ee01003210653l668...@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
What are my options if I want to run an sftp server with speed
throttling? My understanding is that openssh (which includes sftp) in
base does not support this directly, so I would have to either use a
custom kernel with ALTQ (and I would really rather stick to GENERIC so
I can use freebsd-update) which sounds like a bit too much
configuration work or pass sftp traffic through PF and throttle it
(ugly, would also affect ssh traffic).
Are there any sftp servers with directly built-in functionality for
this? I just would to be able to set limits for upload speed globally
for the entire server and preferably to also be able to do speed
settings on a per-user basis.
Thanks.
- Sincerely,
Dan Naumov
------------------------------
Message: 3
Date: Sun, 21 Mar 2010 19:55:00 +0000
From: Vincent Hoffman <vi...@unsane.co.uk>
Subject: Re: sftp server with speed throttling
To: Dan Naumov <dan.n...@gmail.com>
Cc: freeb...@freebsd.org, freebsd-...@freebsd.org
Message-ID: <4BA67994...@unsane.co.uk>
Content-Type: text/plain; charset=ISO-8859-1
On 21/03/2010 13:53, Dan Naumov wrote:
> What are my options if I want to run an sftp server with speed
> throttling? My understanding is that openssh (which includes sftp) in
> base does not support this directly, so I would have to either use a
> custom kernel with ALTQ (and I would really rather stick to GENERIC so
> I can use freebsd-update) which sounds like a bit too much
> configuration work or pass sftp traffic through PF and throttle it
> (ugly, would also affect ssh traffic).
>
> Are there any sftp servers with directly built-in functionality for
> this? I just would to be able to set limits for upload speed globally
> for the entire server and preferably to also be able to do speed
> settings on a per-user basis.
>
A quick google indicates there are at least 2 sftp servers with this
functionality,
http://www.proftpd.org/docs/contrib/mod_sftp.html
http://mysecureshell.sourceforge.net/en/index.html
Proftpd with mod_sftp needs the proftp-devel port so I'm guessing its
still in testing but at least its in ports.
No idea about the mysecureshell program, its not in ports.
I havent actually tried with of these so no idea how well they work,
good luck.
Vince
> Thanks.
>
> - Sincerely,
> Dan Naumov
> _______________________________________________
> freebsd-...@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to "freebsd-questi...@freebsd.org"
>
------------------------------
Message: 4
Date: Mon, 22 Mar 2010 12:03:21 +0300
From: Alexander Bubnov <alexande...@gmail.com>
Subject: Re: why zero-copy sockets(9) are not popular?
To: freeb...@freebsd.org
Message-ID:
<c3e287ff1003220203n7be...@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Hi, everybody!
I have found some Intel NICs which supports "header splitting". Does FreeBSD
support them for zero-copy receive?
One more question please... is there a way to determine whether or not
zero-copy receive is working, for example by kernel log or something else?
Thank you in advance.
2010/3/21 Alexander Bubnov <alexande...@gmail.com>
> Bruce, many thanks for comprehensive answer!
>
> 2010/3/20 Bruce Simpson <b...@incunabulum.net>
>
> On 03/20/10 10:06, Alexander Bubnov wrote:
>>
>>> Hello, all!
>>> Anybody knows why zero copy is not popular although this technique
>>> allows
>>> to increase performance of servers? It is very hard to find any examples
>>> of
>>> zero-copy for FreeBSD.
>>>
>>>
>>
>> Transmit is easy. Receive is hard.
>>
>> The whole concept of zero-copy revolves around being able to use
>> page-flipping to map buffers in user and kernel space, to amortize the cost
>> of copies across that system boundary.
>>
>> The compromise usually taken is to use the sendfile() API, or rely on TCP
>> Segmentation Offload (TSO), much like Microsoft's Chimney stack does in
>> Windows 7. Unfortunately, sendfile() only covers transmit. TSO only offloads
>> up to the point where sockets hit the card; TSO can offload TCP stream
>> reassembly, but you still have to copy from the kernel buffers into
>> userland.
>>
>> True zero-copy sockets generally require scatter/gather DMA engine
>> support, and TCP/IP header splitting, to do zero-copy recieve.
>>
>> S/G PCI DMA cores are often custom designed, and you tend not to find them
>> in off-the-shelf VHDL libraries. That IP (as in intellectual property) still
>> has cost.
>>
>> Historically the only cards in FreeBSD which supported this, were the
>> Tigon-II, which got bought by Broadcom (bge is the Tigon-III). Modified
>> firmware was required to do this.
>>
>>
>> _______________________________________________
>> freeb...@freebsd.org mailing list
>> http://lists.freebsd.org/mailman/listinfo/freebsd-net
>> To unsubscribe, send any mail to "freebsd-net...@freebsd.org"
>>
>
>
>
> --
> /BR, Alexander
>
--
/BR, Alexander
------------------------------
Message: 5
Date: Mon, 22 Mar 2010 11:07:07 GMT
From: FreeBSD bugmaster <bugm...@FreeBSD.org>
Subject: Current problem reports assigned to freeb...@FreeBSD.org
To: freeb...@FreeBSD.org
Message-ID: <201003221107....@freefall.freebsd.org>
Note: to view an individual PR, use:
http://www.freebsd.org/cgi/query-pr.cgi?pr=(number).
The following is a listing of current problems submitted by FreeBSD users.
These represent problem reports covering all versions including
experimental development code and obsolete releases.
S Tracker Resp. Description
--------------------------------------------------------------------------------
o kern/144898 net [wpi] [panic] wpi panics system
o kern/144882 net MacBookPro =>4.1 does not connect to BSD in hostap wit
o kern/144874 net [if_bridge] [patch] if_bridge frees mbuf after pfil ho
o kern/144777 net [arp] proxyarp broken in 8.0 [regression]
o kern/144755 net [iwi] [panic] iwi panic when issuing /etc/rc.d/netif r
o kern/144724 net [bwn] if_bwn does not pass traffic when in PIO mode
o conf/144700 net [rc.d] async dhclient breaks stuff for too many people
o kern/144680 net [em] em(4) problem with dual-port adapter
o kern/144642 net [rum] [panic] Enabling rum interface causes panic
o kern/144616 net [nat] [panic] ip_nat panic FreeBSD 7.2
o kern/144572 net [carp] CARP preemption mode traffic partially goes to
o kern/144561 net [ixgbe] [patch] ixgbe driver errors
o kern/144560 net [mld] [patch] mld sends packets to wrong destination w
o kern/144529 net [sctp] sctp over ipv6 appears to not calculate checksu
o kern/144505 net [bwn] [patch] Error in macro CALC_COEFF2.
o kern/144494 net [ixgbe] ixgbe driver not built as module
o kern/144323 net [ieee80211] A response management frame appears in wir
f kern/144315 net [ipfw] [panic] freebsd 8-stable reboot after add ipfw
o kern/144206 net Marvell Yukon NIC not working under FreeBSD
o kern/144000 net [tcp] setting TCP_MAXSEG by setsockopt() does not seem
o kern/143939 net [ipfw] [em] ipfw nat and em interface rxcsum problem
o kern/143874 net [wpi] Wireless 3945ABG error. wpi0 could not allocate
o kern/143868 net [ath] [patch] allow Atheros watchdog timeout to be tun
o kern/143846 net [gif] bringing gif3 tunnel down causes gif0 tunnel to
o kern/143788 net [iwi] wpa_supplicant(8) can't set privacy on iwi inter
s kern/143673 net [stf] [request] there should be a way to support multi
s kern/143666 net [ip6] [request] PMTU black hole detection not implemen
o kern/143627 net [ieee80211] [panic] A bug in ht_send_action_ba_addba c
o kern/143622 net [pfil] [patch] unlock pfil lock while calling firewall
o kern/143595 net [wpi] [panic] Creating virtual interface over wpi0 in
o kern/143593 net [ipsec] When using IPSec, tcpdump doesn't show outgoin
o kern/143591 net [ral] RT2561C-based DLink card (DWL-510) fails to work
o kern/143573 net [em] em(4) NIC crashes intermittently
o kern/143285 net [em] [regression] jumbo frames broken in 8.0
o kern/143208 net [ipsec] [gif] IPSec over gif interface not working
o conf/143079 net hostapd(8) startup missing multi wlan functionality
o kern/143074 net [wi]: wi driver triggers panic
o kern/143034 net [panic] system reboots itself in tcp code [regression]
o kern/142907 net [wpi] if_wpi unstable on ibm/lenovo x60 -- suspect fir
o kern/142877 net [hang] network-related repeatable 8.0-STABLE hard hang
o kern/142774 net Problem with outgoing connections on interface with mu
o kern/142772 net [libc] lla_lookup: new lle malloc failed
o kern/142766 net [ipw] [regression] ipw(4) with Intel PRO/wireless 2100
o kern/142518 net [em] [lagg] Problem on 8.0-STABLE with em and lagg
o kern/142019 net [em] em needs "ifconfig em0 down up" when link was gon
o kern/142018 net [iwi] [patch] Possibly wrong interpretation of beacon-
o kern/141861 net [wi] data garbled with WEP and wi(4) with Prism 2.5
o kern/141843 net [em] [vlan] Intel txcsum and assigned vlan invoke wron
o kern/141777 net [rum] [patch] Support usbdevs / rum(4) for Buffalo WLI
f kern/141741 net Etherlink III NIC won't work after upgrade to FBSD 8,
o kern/141720 net [sctp] [lor] [hang] sctp-create vs. sctp-it causes sys
o kern/141698 net [sctp] [panic] Own lock on stcb at return from input
o kern/141697 net [sctp] [panic] lock (sleep mutex) sctp-tcb not locked
o kern/141696 net [rum] [panic] rum(4)+ vimage = kernel panic
o kern/141695 net [sctp] [panic] kernel page fault with non-sleepable lo
o kern/141314 net Network Performance has decreased by 30% [regression]
o kern/141285 net [em] hangs down/up intel nic during creating vlan
o kern/141023 net [carp] CARP arp replays with wrong src mac
o kern/140796 net [ath] [panic] privileged instruction fault
o kern/140778 net [em] randomly panic in vlan/em
o kern/140742 net rum(4) Two asus-WL167G adapters cannot talk to each ot
o kern/140728 net [em] [patch] Fast irq registration in em driver
o kern/140682 net [netgraph] [panic] random panic in netgraph
o kern/140647 net [em] [patch] e1000 driver does not correctly handle mu
o kern/140634 net [vlan] destroying if_lagg interface with if_vlan membe
o kern/140619 net [ifnet] [patch] refine obsolete if_var.h comments desc
s kern/140597 net [request] implement Lost Retransmission Detection
o kern/140567 net [ath] [patch] ath is not worked on my notebook PC
o kern/140564 net [wpi] Problem with Intel(R) PRO/Wireless 3945ABG
o kern/140346 net [wlan] High bandwidth use causes loss of wlan connecti
o kern/140326 net [em] em0: watchdog timeout when communicating to windo
o kern/140245 net [ath] [panic] Kernel panic during network activity on
o kern/140142 net [ip6] [panic] FreeBSD 7.2-amd64 panic w/IPv6
o kern/140066 net [bwi] install report for 8.0 RC 2 (multiple problems)
o kern/140051 net [bce] [arp] ARP not sent through Bridge Firewall with
o kern/139565 net [ipfilter] ipfilter ioctl SIOCDELST broken
o kern/139387 net [ipsec] Wrong lenth of PF_KEY messages in promiscuous
o bin/139346 net [patch] arp(8) add option to remove static entries lis
o kern/139268 net [if_bridge] [patch] allow if_bridge to forward just VL
o kern/139204 net [arp] DHCP server replies rejected, ARP entry lost bef
o kern/139162 net [fwip] [panic] 8.0-RC1 panics if using IP over firewir
o kern/139117 net [lagg] + wlan boot timing (EBUSY)
o kern/139079 net [wpi] Failure to attach wpi(4)
o kern/139058 net [ipfilter] mbuf cluster leak on FreeBSD 7.2
o kern/138850 net [dummynet] dummynet doesn't work correctly on a bridge
o kern/138782 net [panic] sbflush_internal: cc 0 || mb 0xffffff004127b00
o kern/138739 net [wpi] wpi(4) does not work very well under 8.0-BETA4
o kern/138694 net [bge] FreeBSD 6.3 release does not recognize Broadcom
o amd64/138688 net [rum] possibly broken on 8 Beta 4 amd64: able to wpa a
o kern/138678 net [lo] FreeBSD does not assign linklocal address to loop
o kern/138660 net [igb] igb driver troubles in 8.0-BETA4
o kern/138652 net [tcp] TCP window scaling value calculated incorrectly?
o kern/138620 net [lagg] [patch] lagg port bpf-writes blocked
o kern/138427 net [wpi] [panic] Kernel panic after trying set monitor wl
o kern/138407 net [gre] gre(4) interface does not come up after reboot
o kern/138332 net [tun] [lor] ifconfig tun0 destroy causes LOR if_adata/
o kern/138266 net [panic] kernel panic when udp benchmark test used as r
o kern/138177 net [ipfilter] FreeBSD crashing repeatedly in ip_nat.c:257
o kern/138046 net [tcp] tcp sockets stay in SYN_SENT even after receivin
o kern/137881 net [netgraph] [panic] ng_pppoe fatal trap 12
o bin/137841 net [patch] wpa_supplicant(8) cannot verify SHA256 signed
p kern/137795 net [sctp] [panic] mtx_lock() of destroyed mutex
o kern/137776 net [rum] panic in rum(4) driver on 8.0-BETA2
o kern/137775 net [netgraph] [patch] Add XMIT_FAILOVER to ng_one2many
o bin/137641 net ifconfig(8): various problems with "vlan_device.vlan_i
o kern/137592 net [ath] panic - 7-STABLE (Aug 7, 2009 UTC) crashes on ne
o bin/137484 net [patch] Integer overflow in wpa_supplicant(8) base64 e
o kern/137392 net [ip] [panic] crash in ip_nat.c line 2577
o kern/137372 net [ral] FreeBSD doesn't support wireless interface from
o kern/137317 net [tcp] logs full of syncache problems
o kern/137279 net [bge] [panic] Page fault (fatal trap 12) NFS server w/
o kern/137089 net [lagg] lagg falsely triggers IPv6 duplicate address de
o bin/136994 net [patch] ifconfig(8) print carp mac address
o kern/136943 net [wpi] [lor] wpi0_com_lock / wpi0
o kern/136911 net [netgraph] [panic] system panic on kldload ng_bpf.ko t
o kern/136876 net [bge] bge will not resume properly after suspend
o kern/136836 net [ath] atheros card stops functioning after about 12 ho
o bin/136661 net [patch] ndp(8) ignores -f option
o kern/136618 net [pf][stf] panic on cloning interface without unit numb
o kern/136426 net [panic] spawning several dhclients in parallel panics
o kern/136168 net [em] em driver initialization fails on Intel 5000PSL m
o kern/135502 net [periodic] Warning message raised by rtfree function i
o kern/135222 net [igb] low speed routing between two igb interfaces
o kern/134956 net [em] FreeBSD 7.1 & 7.2, Intel PRO/1000 PT Quad Port Se
o kern/134931 net [route] Route messages sent to all socket listeners re
o kern/134583 net [hang] Machine with jail freezes after random amount o
o kern/134531 net [route] [panic] kernel crash related to routes/zebra
o kern/134401 net [msk] [panic] Kernel Fatal trap 12: page fault while i
o kern/134168 net [ral] ral driver problem on RT2525 2.4GHz transceiver
o kern/134157 net [dummynet] dummynet loads cpu for 100% and make a syst
o kern/134079 net [em] "em0: Invalid MAC address" in FreeBSD-Current ( 8
o kern/133969 net [dummynet] [panic] Fatal trap 12: page fault while in
o kern/133968 net [dummynet] [panic] dummynet kernel panic
o kern/133902 net [tun] Killing tun0 iface ssh tunnel causes Panic Strin
o kern/133786 net [netinet] [patch] ip_input might cause kernel panic
o kern/133736 net [udp] ip_id not protected ...
o kern/133613 net [wpi] [panic] kernel panic in wpi(4)
o kern/133595 net [panic] Kernel Panic at pcpu.h:195
o kern/133572 net [ppp] [hang] incoming PPTP connection hangs the system
o kern/133490 net [bpf] [panic] 'kmem_map too small' panic on Dell r900
o kern/133328 net [bge] [panic] Kernel panics with Windows7 client
o kern/133235 net [netinet] [patch] Process SIOCDLIFADDR command incorre
o kern/133218 net [carp] [hang] use of carp(4) causes system to freeze
f kern/133213 net arp and sshd errors on 7.1-PRERELEASE
o kern/133204 net [msk] msk driver timeouts
o kern/133060 net [ipsec] [pfsync] [panic] Kernel panic with ipsec + pfs
f bin/132911 net ip6fw(8): argument type of fill_icmptypes is wrong and
o kern/132889 net [ndis] [panic] NDIS kernel crash on load BCM4321 AGN d
o kern/132885 net [wlan] 802.1x broken after SVN rev 189592
o conf/132851 net [patch] rc.conf(5): allow to setfib(1) for service run
o kern/132832 net [netinet] [patch] tcp_output() might generate invalid
o bin/132798 net [patch] ggatec(8): ggated/ggatec connection slowdown p
o kern/132734 net [ifmib] [panic] panic in net/if_mib.c
o kern/132722 net [ath] Wifi ath0 associates fine with AP, but DHCP or I
o kern/132705 net [libwrap] [patch] libwrap - infinite loop if hosts.all
o kern/132672 net [ndis] [panic] ndis with rt2860.sys causes kernel pani
o kern/132669 net [xl] 3c905-TX send DUP! in reply on ping (sometime)
o kern/132554 net [ipl] There is no ippool start script/ipfilter magic t
o kern/132354 net [nat] Getting some packages to ipnat(8) causes crash
o kern/132285 net [carp] alias gives incorrect hash in dmesg
o kern/132277 net [crypto] [ipsec] poor performance using cryptodevice f
o kern/132107 net [carp] carp(4) advskew setting ignored when carp IP us
o kern/131781 net [ndis] ndis keeps dropping the link
o kern/131776 net [wi] driver fails to init
o kern/131753 net [altq] [panic] kernel panic in hfsc_dequeue
o bin/131567 net [socket] [patch] Update for regression/sockets/unix_cm
o kern/131549 net ifconfig(8) can't clear 'monitor' mode on the wireless
o kern/131536 net [netinet] [patch] kernel does allow manipulation of su
o bin/131365 net route(8): route add changes interpretation of network
o kern/131162 net [ath] Atheros driver bugginess and kernel crashes
o kern/131153 net [iwi] iwi doesn't see a wireless network
f kern/131087 net [ipw] [panic] ipw / iwi - no sent/received packets; iw
f kern/130820 net [ndis] wpa_supplicant(8) returns 'no space on device'
o kern/130628 net [nfs] NFS / rpc.lockd deadlock on 7.1-R
o conf/130555 net [rc.d] [patch] No good way to set ipfilter variables a
o kern/130525 net [ndis] [panic] 64 bit ar5008 ndisgen-erated driver cau
o kern/130311 net [wlan_xauth] [panic] hostapd restart causing kernel pa
o kern/130109 net [ipfw] Can not set fib for packets originated from loc
f kern/130059 net [panic] Leaking 50k mbufs/hour
o kern/129750 net [ath] Atheros AR5006 exits on "cannot map register spa
f kern/129719 net [nfs] [panic] Panic during shutdown, tcp_ctloutput: in
o kern/129517 net [ipsec] [panic] double fault / stack overflow
o kern/129508 net [carp] [panic] Kernel panic with EtherIP (may be relat
o kern/129352 net [xl] [patch] xl0 watchdog timeout
o kern/129219 net [ppp] Kernel panic when using kernel mode ppp
o kern/129197 net [panic] 7.0 IP stack related panic
o bin/128954 net ifconfig(8) deletes valid routes
o kern/128917 net [wpi] [panic] if_wpi and wpa+tkip causing kernel panic
o kern/128840 net [igb] page fault under load with igb/LRO
o bin/128602 net [an] wpa_supplicant(8) crashes with an(4)
o kern/128448 net [nfs] 6.4-RC1 Boot Fails if NFS Hostname cannot be res
o conf/128334 net [request] use wpa_cli in the "WPA DHCP" situation
o bin/128295 net [patch] ifconfig(8) does not print TOE4 or TOE6 capabi
o bin/128001 net wpa_supplicant(8), wlan(4), and wi(4) issues
o kern/127928 net [tcp] [patch] TCP bandwidth gets squeezed every time t
o kern/127834 net [ixgbe] [patch] wrong error counting
o kern/127826 net [iwi] iwi0 driver has reduced performance and connecti
o kern/127815 net [gif] [patch] if_gif does not set vlan attributes from
o kern/127724 net [rtalloc] rtfree: 0xc5a8f870 has 1 refs
f bin/127719 net [arp] arp: Segmentation fault (core dumped)
f kern/127528 net [icmp]: icmp socket receives icmp replies not owned by
o bin/127192 net routed(8) removes the secondary alias IP of interface
f kern/127145 net [wi]: prism (wi) driver crash at bigger traffic
o kern/127102 net [wpi] Intel 3945ABG low throughput
o kern/127057 net [udp] Unable to send UDP packet via IPv6 socket to IPv
o kern/127050 net [carp] ipv6 does not work on carp interfaces [regressi
o kern/126945 net [carp] CARP interface destruction with ifconfig destro
o kern/126895 net [patch] [ral] Add antenna selection (marked as TBD)
o kern/126874 net [vlan]: Zebra problem if ifconfig vlanX destroy
o bin/126822 net wpa_supplicant(8): WPA PSK does not work in adhoc mode
o kern/126714 net [carp] CARP interface renaming makes system no longer
o kern/126695 net rtfree messages and network disruption upon use of if_
o kern/126688 net [ixgbe] [patch] 1.4.7 ixgbe driver panic with 4GB and
o kern/126475 net [ath] [panic] ath pcmcia card inevitably panics under
o kern/126339 net [ipw] ipw driver drops the connection
o kern/126214 net [ath] txpower problem with Atheros wifi card
o kern/126075 net [inet] [patch] internet control accesses beyond end of
o bin/125922 net [patch] Deadlock in arp(8)
o kern/125920 net [arp] Kernel Routing Table loses Ethernet Link status
o kern/125845 net [netinet] [patch] tcp_lro_rx() should make use of hard
o kern/125816 net [carp] [if_bridge] carp stuck in init when using bridg
f kern/125502 net [ral] ifconfig ral0 scan produces no output unless in
o kern/125258 net [socket] socket's SO_REUSEADDR option does not work
o kern/125239 net [gre] kernel crash when using gre
o kern/124767 net [iwi] Wireless connection using iwi0 driver (Intel 220
o kern/124753 net [ieee80211] net80211 discards power-save queue packets
o kern/124341 net [ral] promiscuous mode for wireless device ral0 looses
o kern/124225 net [ndis] [patch] ndis network driver sometimes loses net
o kern/124160 net [libc] connect(2) function loops indefinitely
o kern/124021 net [ip6] [panic] page fault in nd6_output()
o kern/123968 net [rum] [panic] rum driver causes kernel panic with WPA.
p kern/123961 net [vr] [patch] Allow vr interface to handle vlans
o kern/123892 net [tap] [patch] No buffer space available
o kern/123890 net [ppp] [panic] crash & reboot on work with PPP low-spee
o kern/123858 net [stf] [patch] stf not usable behind a NAT
o kern/123796 net [ipf] FreeBSD 6.1+VPN+ipnat+ipf: port mapping does not
o bin/123633 net ifconfig(8) doesn't set inet and ether address in one
f kern/123617 net [tcp] breaking connection when client downloading file
o kern/123603 net [tcp] tcp_do_segment and Received duplicate SYN
o kern/123559 net [iwi] iwi periodically disassociates/associates [regre
o bin/123465 net [ip6] route(8): route add -inet6 <ipv6_addr> -interfac
o kern/123463 net [ipsec] [panic] repeatable crash related to ipsec-tool
o kern/123429 net [nfe] [hang] "ifconfig nfe up" causes a hard system lo
o kern/123347 net [bge] bge1: watchdog timeout -- linkstate changed to D
o conf/123330 net [nsswitch.conf] Enabling samba wins in nsswitch.conf c
o kern/123256 net [wpi] panic: blockable sleep lock with wpi(4)
f kern/123172 net [bce] Watchdog timeout problems with if_bce
o kern/123160 net [ip] Panic and reboot at sysctl kern.polling.enable=0
o kern/122989 net [swi] [panic] 6.3 kernel panic in swi1: net
o kern/122954 net [lagg] IPv6 EUI64 incorrectly chosen for lagg devices
o kern/122928 net [em] interface watchdog timeouts and stops receiving p
f kern/122839 net [em] FreeBSD 7 multicast routing problem
f kern/122780 net [lagg] tcpdump on lagg interface during high pps wedge
o kern/122772 net [em] em0 taskq panic, tcp reassembly bug causes radix
o kern/122743 net [mbuf] [panic] vm_page_unwire: invalid wire count: 0
o kern/122697 net [ath] Atheros card is not well supported
o kern/122685 net It is not visible passing packets in tcpdump(1)
o kern/122319 net [wi] imposible to enable ad-hoc demo mode with Orinoco
o kern/122290 net [netgraph] [panic] Netgraph related "kmem_map too smal
o kern/122195 net [ed] Alignment problems in if_ed
o kern/122058 net [em] [panic] Panic on em1: taskq
o kern/122033 net [ral] [lor] Lock order reversal in ral0 at bootup ieee
o bin/121895 net [patch] rtsol(8)/rtsold(8) doesn't handle managed netw
o kern/121872 net [wpi] driver fails to attach on a fujitsu-siemens s711
s kern/121774 net [swi] [panic] 6.3 kernel panic in swi1: net
o kern/121706 net [netinet] [patch] "rtfree: 0xc4383870 has 1 refs" emit
o kern/121624 net [em] [regression] Intel em WOL fails after upgrade to
o kern/121555 net [panic] Fatal trap 12: current process = 12 (swi1: net
o kern/121443 net [gif] [lor] icmp6_input/nd6_lookup
o kern/121437 net [vlan] Routing to layer-2 address does not work on VLA
o bin/121359 net [patch] [security] ppp(8): fix local stack overflow in
o kern/121298 net [em] [panic] Fatal trap 12: page fault while in kernel
o kern/121257 net [tcp] TSO + natd -> slow outgoing tcp traffic
o kern/121181 net [panic] Fatal trap 3: breakpoint instruction fault whi
o kern/121080 net [bge] IPv6 NUD problem on multi address config on bge0
o kern/120966 net [rum] kernel panic with if_rum and WPA encryption
p docs/120945 net [patch] ip6(4) man page lacks documentation for TCLASS
o kern/120566 net [request]: ifconfig(8) make order of arguments more fr
o kern/120304 net [netgraph] [patch] netgraph source assumes 32-bit time
o kern/120266 net [udp] [panic] gnugk causes kernel panic when closing U
o kern/120232 net [nfe] [patch] Bring in nfe(4) to RELENG_6
o kern/120130 net [carp] [panic] carp causes kernel panics in any conste
o bin/120060 net routed(8) deletes link-level routes in the presence of
o kern/119945 net [rum] [panic] rum device in hostap mode, cause kernel
o kern/119791 net [nfs] UDP NFS mount of aliased IP addresses from a Sol
o kern/119617 net [nfs] nfs error on wpa network when reseting/shutdown
f kern/119516 net [ip6] [panic] _mtx_lock_sleep: recursed on non-recursi
o kern/119432 net [arp] route add -host <host> -iface <nic> causes arp e
o kern/119225 net [wi] 7.0-RC1 no carrier with Prism 2.5 wifi card [regr
o sparc/118932 net [panic] 7.0-BETA4/sparc-64 kernel panic in rip_output
a kern/118879 net [bge] [patch] bge has checksum problems on the 5703 ch
o kern/118727 net [netgraph] [patch] [request] add new ng_pf module
a kern/118238 net [bce] [patch] bce driver shows "no carrier" on Intel S
s kern/117717 net [panic] Kernel panic with Bittorrent client.
o kern/117448 net [carp] 6.2 kernel crash [regression]
o kern/117423 net [vlan] Duplicate IP on different interfaces
o bin/117339 net [patch] route(8): loading routing management commands
o kern/117271 net [tap] OpenVPN TAP uses 99% CPU on releng_6 when if_tap
o kern/117043 net [em] Intel PWLA8492MT Dual-Port Network adapter EEPROM
o kern/116837 net [tun] [panic] [patch] ifconfig tunX destroy: panic
o kern/116747 net [ndis] FreeBSD 7.0-CURRENT crash with Dell TrueMobile
o bin/116643 net [patch] [request] fstat(1): add INET/INET6 socket deta
o kern/116185 net [iwi] if_iwi driver leads system to reboot
o kern/115239 net [ipnat] panic with 'kmem_map too small' using ipnat
o kern/115019 net [netgraph] ng_ether upper hook packet flow stops on ad
o kern/115002 net [wi] if_wi timeout. failed allocation (busy bit). ifco
o kern/114915 net [patch] [pcn] pcn (sys/pci/if_pcn.c) ethernet driver f
o kern/113895 net [xl] xl0 fails on 6.2-RELEASE but worked fine on 5.5-R
o kern/113432 net [ucom] WARNING: attempt to net_add_domain(netgraph) af
o kern/112722 net [ipsec] [udp] IP v4 udp fragmented packet reject
o kern/112686 net [patm] patm driver freezes System (FreeBSD 6.2-p4) i38
o kern/112570 net [bge] packet loss with bge driver on BCM5704 chipset
o bin/112557 net [patch] ppp(8) lock file should not use symlink name
o kern/112528 net [nfs] NFS over TCP under load hangs with "impossible p
o kern/111457 net [ral] ral(4) freeze
o kern/110140 net [ipw] ipw fails under load
o kern/109733 net [bge] bge link state issues [regression]
o kern/109470 net [wi] Orinoco Classic Gold PC Card Can't Channel Hop
o kern/109308 net [pppd] [panic] Multiple panics kernel ppp suspected [r
o kern/109251 net [re] [patch] if_re cardbus card won't attach
o bin/108895 net pppd(8): PPPoE dead connections on 6.2 [regression]
o kern/108542 net [bce] Huge network latencies with 6.2-RELEASE / STABLE
o kern/107944 net [wi] [patch] Forget to unlock mutex-locks
o kern/107850 net [bce] bce driver link negotiation is faulty
o conf/107035 net [patch] bridge(8): bridge interface given in rc.conf n
o kern/106444 net [netgraph] [panic] Kernel Panic on Binding to an ip to
o kern/106438 net [ipf] ipfilter: keep state does not seem to allow repl
o kern/106316 net [dummynet] dummynet with multipass ipfw drops packets
o kern/106243 net [nve] double fault panic in if_nve.c on high loads
o kern/105945 net Address can disappear from network interface
s kern/105943 net Network stack may modify read-only mbuf chain copies
o bin/105925 net problems with ifconfig(8) and vlan(4) [regression]
o kern/105348 net [ath] ath device stopps TX
o kern/104851 net [inet6] [patch] On link routes not configured when usi
o kern/104751 net [netgraph] kernel panic, when getting info about my tr
o kern/104485 net [bge] Broadcom BCM5704C: Intermittent on newer chip ve
o kern/103191 net Unpredictable reboot
o kern/103135 net [ipsec] ipsec with ipfw divert (not NAT) encodes a pac
o kern/102540 net [netgraph] [patch] supporting vlan(4) by ng_fec(4)
o conf/102502 net [netgraph] [patch] ifconfig name does't rename netgrap
o kern/102035 net [plip] plip networking disables parallel port printing
o kern/101948 net [ipf] [panic] Kernel Panic Trap No 12 Page Fault - cau
o kern/100709 net [libc] getaddrinfo(3) should return TTL info
o kern/100519 net [netisr] suggestion to fix suboptimal network polling
o kern/98978 net [ipf] [patch] ipfilter drops OOW packets under 6.1-Rel
o kern/98597 net [inet6] Bug in FreeBSD 6.1 IPv6 link-local DAD procedu
o bin/98218 net wpa_supplicant(8) blacklist not working
f bin/97392 net ppp(8) hangs instead terminating
o kern/97306 net [netgraph] NG_L2TP locks after connection with failed
f kern/96268 net [socket] TCP socket performance drops by 3000% if pack
o kern/96030 net [bfe] [patch] Install hangs with Broadcomm 440x NIC in
o kern/95519 net [ral] ral0 could not map mbuf
o kern/95288 net [pppd] [tty] [panic] if_ppp panic in sys/kern/tty_subr
o kern/95277 net [netinet] [patch] IP Encapsulation mask_match() return
o kern/95267 net packet drops periodically appear
s kern/94863 net [bge] [patch] hack to get bge(4) working on IBM e326m
o kern/94162 net [bge] 6.x kenel stale with bge(4)
o kern/93886 net [ath] Atheros/D-Link DWL-G650 long delay to associate
f kern/93378 net [tcp] Slow data transfer in Postfix and Cyrus IMAP (wo
o kern/93019 net [ppp] ppp and tunX problems: no traffic after restarti
o kern/92880 net [libc] [patch] almost rewritten inet_network(3) functi
f kern/92552 net A serious bug in most network drivers from 5.X to 6.X
s kern/92279 net [dc] Core faults everytime I reboot, possible NIC issu
o kern/92090 net [bge] bge0: watchdog timeout -- resetting
o kern/91859 net [ndis] if_ndis does not work with Asus WL-138
s kern/91777 net [ipf] [patch] wrong behaviour with skip rule inside an
o kern/91594 net [em] FreeBSD > 5.4 w/ACPI fails to detect Intel Pro/10
o kern/91364 net [ral] [wep] WF-511 RT2500 Card PCI and WEP
o kern/91311 net [aue] aue interface hanging
o kern/90890 net [vr] Problems with network: vr0: tx shutdown timeout
s kern/90086 net [hang] 5.4p8 on supermicro P8SCT hangs during boot if
f kern/88082 net [ath] [panic] cts protection for ath0 causes panic
o kern/87521 net [ipf] [panic] using ipfilter "auth" keyword leads to k
o kern/87506 net [vr] [patch] Fix alias support on vr interfaces
o kern/87421 net [netgraph] [panic]: ng_ether + ng_eiface + if_bridge
s kern/86920 net [ndis] ifconfig: SIOCS80211: Invalid argument [regress
o kern/86871 net [tcp] [patch] allocation logic for PCBs in TIME_WAIT s
o kern/86103 net [ipf] Illegal NAT Traversal in IPFilter
o kern/85780 net 'panic: bogus refcnt 0' in routing/ipv6
o bin/85445 net ifconfig(8): deprecated keyword to ifconfig inoperativ
o kern/84202 net [ed] [patch] Holtek HT80232 PCI NIC recognition on Fre
o bin/82975 net route change does not parse classfull network as given
o kern/82881 net [netgraph] [panic] ng_fec(4) causes kernel panic after
o bin/82185 net [patch] ndp(8) can delete the incorrect entry
s kern/81147 net [net] [patch] em0 reinitialization while adding aliase
o kern/80853 net [ed] [patch] add support for Compex RL2000/ISA in PnP
o kern/79895 net [ipf] 5.4-RC2 breaks ipfilter NAT when using netgraph
f kern/79262 net [dc] Adaptec ANA-6922 not fully supported
o bin/79228 net [patch] extend arp(8) to be able to create blackhole r
o kern/78090 net [ipf] ipf filtering on bridged packets doesn't work if
p kern/77913 net [wi] [patch] Add the APDL-325 WLAN pccard to wi(4)
o kern/77341 net [ip6] problems with IPV6 implementation
o kern/77273 net [ipf] ipfilter breaks ipv6 statefull filtering on 5.3
s kern/77195 net [ipf] [patch] ipfilter ioctl SIOCGNATL does not match
o kern/75873 net Usability problem with non-RFC-compliant IP spoof prot
s kern/75407 net [an] an(4): no carrier after short time
f kern/73538 net [bge] problem with the Broadcom BCM5788 Gigabit Ethern
o kern/71469 net default route to internet magically disappears with mu
o kern/70904 net [ipf] ipfilter ipnat problem with h323 proxy support
o kern/66225 net [netgraph] [patch] extend ng_eiface(4) control message
s kern/60293 net [patch] FreeBSD arp poison patch
o kern/54383 net [nfs] [patch] NFS root configurations without dynamic
f i386/45773 net [bge] Softboot causes autoconf failure on Broadcom 570
s bin/41647 net ifconfig(8) doesn't accept lladdr along with inet addr
s kern/39937 net ipstealth issue
a kern/38554 net [patch] changing interface ipaddress doesn't seem to w
o kern/35442 net [sis] [patch] Problem transmitting runts in if_sis dri
o kern/34665 net [ipf] [hang] ipfilter rcmd proxy "hangs".
o kern/31647 net [libc] socket calls can return undocumented EINVAL
o kern/30186 net [libc] getaddrinfo(3) does not handle incorrect servna
o kern/27474 net [ipf] [ppp] Interactive use of user PPP and ipfilter c
o conf/23063 net [arp] [patch] for static ARP tables in rc.network
412 problems total.
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End of freebsd-net Digest, Vol 364, Issue 1
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