th
raising the conversation more broadly. The change to add this field is in
https://reviews.freebsd.org/D35339. Drew has tested this isolated change
under load at Netflix and found no impact on performance.
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n't reproducible on some other drivers. I wonder if
other drivers would also provoke this if you just ran them in a detach/attach
loop long enough.
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the thread running detach.
After that you can release device resources, destroy mutexes, free the ifp, etc.
Note that drivers have to be prepared for ether_ifdetach to invoke if_ioctl
(e.g.
when detaching bpf), but of the drivers I've looked at this has generally been a
non-issue.
It sounds like iflib s
s to return.
A fancier version would be to build an sglist describing your buffer and
create an OBJT_SG VM object that you returned from the d_mmap_single
callback, but if you only ever have a single object that is never freed,
the simple version will work fine.
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jhb accepted this revision.
jhb added a comment.
This revision is now accepted and ready to land.
Thanks!
CHANGES SINCE LAST ACTION
https://reviews.freebsd.org/D19422/new/
REVISION DETAIL
https://reviews.freebsd.org/D19422
EMAIL PREFERENCES
jhb added a comment.
I agree that we can't handle this in ether_ioctl as it varies too much by
real hardware.
INLINE COMMENTS
> if_vxlan.c:90
> + */
> +#define VXLAN_MAX_MTU65435
> +
If it was possible to make this derived from other constants that would be
ideal. has
jhb accepted this revision.
This revision has a positive review.
REVISION DETAIL
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To: sepherosa_gmail.com, decui_microsoft.com, jhb
Cc: freebsd-net-list
jhb added a comment.
I would suggest rewording the message a bit to something like:
Defer if_up() until after the interface's if_ioctl method is called.
This ensures the interface is initialized by the interface driver before
it can be used by the rest of the system.
On Thursday, December 29, 2016 10:02:32 AM Vincenzo Maffione wrote:
> Ok, thanks for the clarification. I change the lock type to MTX_DEF
> (and did a test). I attached the new patch.
Looks good to me, thanks!
> Cheers,
> Vincenzo
>
> 2016-12-29 2:06 GMT+01:00 John Baldwin
if_input or m_freem that can't be invoked from
a filter either).
>
> Cheers,
> Vincenzo
>
> 2016-12-28 19:06 GMT+01:00 John Baldwin <j...@freebsd.org>:
> > Why are you using MTX_SPIN? Changing the lock type to MTX_DEF would seem to
> > be a smaller patch and pro
://reviews.freebsd.org/D8955
if you'd like to comment/review.
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;>>>>>> Why is IFNET_WLOCK needed here? It seems like a regression to
> >>>>>>>>> disallow
> >>>>>>>>> sleep on the control path.
> >>>>>>>>>
> >>>>>>>>> Regards,
> >>>>>>>>> Navdeep
> >>>>>>>>>
> >>>>>>>>> begin_synchronized_op with the following non-sleepable locks held:
> >>>>>>>>> exclusive rw ifnet_rw (ifnet_rw) r = 0 (0x8271d680) locked @
> >>>>>>>>> /root/ws/head/sys/dev/netmap/netmap_freebsd.c:95
> >>>>>>>>> stack backtrace:
> >>>>>>>>> #0 0x810837a5 at witness_debugger+0xe5
> >>>>>>>>> #1 0x81084d88 at witness_warn+0x3b8
> >>>>>>>>> #2 0x83ef2bcc at begin_synchronized_op+0x6c
> >>>>>>>>> #3 0x83f14beb at cxgbe_netmap_reg+0x5b
> >>>>>>>>> #4 0x809846f1 at netmap_hw_reg+0x81
> >>>>>>>>> #5 0x809806de at netmap_do_regif+0x19e
> >>>>>>>>> #6 0x8098121d at netmap_ioctl+0x7ad
> >>>>>>>>> #7 0x8098682f at freebsd_netmap_ioctl+0x5f
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>> --
> >>>>>>>> Vincenzo Maffione
> >>>>>>>> ___
> >>>>>>>> freebsd-net@freebsd.org mailing list
> >>>>>>>> https://lists.freebsd.org/mailman/listinfo/freebsd-net
> >>>>>>>> To unsubscribe, send any mail to
> >>>>>>>> "freebsd-net-unsubscr...@freebsd.org"
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> --
> >>>>>> Vincenzo Maffione
> >>>>>> ___
> >>>>>> freebsd-net@freebsd.org mailing list
> >>>>>> https://lists.freebsd.org/mailman/listinfo/freebsd-net
> >>>>>> To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
> >>>>
> >>>>
> >>>>
> >>>> --
> >>>> Vincenzo Maffione
> >>>
> >>>
> >>>
> >>> --
> >>> -+---
> >>> Prof. Luigi RIZZO, ri...@iet.unipi.it . Dip. di Ing. dell'Informazione
> >>> http://www.iet.unipi.it/~luigi/. Universita` di Pisa
> >>> TEL +39-050-2217533 . via Diotisalvi 2
> >>> Mobile +39-338-6809875 . 56122 PISA (Italy)
> >>> -+---
> >>
> >>
> >>
> >> --
> >> Vincenzo Maffione
>
>
>
>
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jhb accepted this revision.
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To: sepherosa_gmail.com, network, secteam, delphij, glebius, adrian,
honzhan_microsoft.com, howard0su_gmail.com, decui_microsoft.com,
12971 igb1:que 2
> 13032 igb1:que 3
>
> So I guess interrupts are routed correctly after all, but for some reason
> driver takes some 5 times less time to process it on cpus 4-7
> (per-interrupt). Weird.
Are the pps rates the same? It seems like the interrupt rates on igb0
are d
51 5
>11 100086 intr irq271: igb1:que 61 6
>11 100088 intr irq272: igb1:que 71 7
These are clearly what you want, and you can see that the last CPU they
ran on is the CPU you want as well. If you run 'top -SHz' do you see
the threads running
and that most things
will only check for M_PKTHDR and look for the fields in the first mbuf in
the chain.
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ppysoft.com/haswell_bug/good.dmesg
> http://sobomax.sippysoft.com/haswell_bug/lstopo_good.png
> http://sobomax.sippysoft.com/haswell_bug/systat_vm_good.png
> http://sobomax.sippysoft.com/haswell_bug/top_P_good.png
>
> Any ideas on how to debug th
simpler by avoiding
an extra condition. Please just document it via assertions in tcp_close()
(or is this the assertion that fired and triggered the reported panic? If so,
then you obviously don't need to add it. :-P)
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, but is fine for a one-time
copy.
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or something else to avoid leaking the kernel mappings.
This has the advantage over the first approach that it will keep the pages
around until all mappings are gone, though once all the kernel mappings are
gone the pages will no longer be wired (though they will be swap-backed).
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On Thursday, March 12, 2015 04:07:54 PM Hans Petter Selasky wrote:
On 02/28/15 13:28, John Baldwin wrote:
On Friday, February 27, 2015 10:23:10 PM Gleb Smirnoff wrote:
On Thu, Feb 26, 2015 at 08:25:59PM -0800, Adrian Chadd wrote:
A [snip]
A
A I think Mike's approach is good - it makes
be out until 2016, that is
far, far too long to wait for more media types. The stuff we need to support
is already shipping in products today. We can't not support these in 10 (and
possibly 9).
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. That's almost exactly the approach we were considering.
- Ryan Q
From: John Baldwin j...@freebsd.org
Sent: Friday, February 27, 2015 10:20 AM
To: freebsd-net@freebsd.org
Cc: Quattlebaum, Ryan; Adrian Chadd
Subject: Re: Accessing socket APIs
problem.
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On Friday, February 27, 2015 10:32:17 AM Adrian Chadd wrote:
On 27 February 2015 at 10:07, John Baldwin j...@freebsd.org wrote:
On Friday, February 27, 2015 10:03:33 AM Adrian Chadd wrote:
Is this also a bug on -9 and -10?
Yes. I may merge just the tcp_syncache.c part of this change
to support the new 40 Gb/s
media types until someone wants to design an improved but non-backward-
compatible interface. I think it meets the goal of suitability for
back-porting; it could be MFCed.
Seems like a reasonable next step to me.
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jhb added a comment.
This is just How It Works. You are always supposed to do a callout_drain()
before freeing the storage belonging to a callout. I don't understand how you
are preventing the callout/lock being freed out from under the callout routine
in this version either. Now you can
jhb added a comment.
To be clear, I'm fine with updating my tests to a different framework, but I
think it's worth discussing what that looked like.
I also had to explicitly drop Giant in my test module handler.
I do think it's probably better to explicitly ask tests to run instead of
having
jhb added a subscriber: jhb.
jhb added a comment.
Hmm, I do think the idea of a kernel test framework should be discussed in its
own right. I have implemented a much simpler one on my own for unit tests of
locking primitives that you can see here. These worked by declaring tests in
linker
that
then fiddles with the setting ignoring whats in sysctl.conf ?
Yes, devd is running /etc/rc.d/netif start foo which probably checks
gateway_enable and sets the sysctl based on that overriding what it in
sysctl.conf. Just set gateway_enable=YES in rc.conf instead.
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. You can
make this precise on the NFS server by setting the vfs.timestamp_precision
sysctl to 3. We should probably be using that by default for at least
server-class systems.
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http
.
A backport could simply define the new subtypes as other, and the KPI
would still be compatible.
Thoughts?
Mike
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On Thursday, October 23, 2014 02:12:44 PM Jason Wolfe wrote:
On Sat, Oct 18, 2014 at 4:42 AM, John Baldwin j...@freebsd.org wrote:
On Friday, October 17, 2014 11:32:13 PM Jason Wolfe wrote:
Producing 10G of random traffic against a server with this assertion
added took about 2 hours
);
break;
case TT_KEEP:
t_callout = tp-t_timers-tt_keep;
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is doing?
This is not a NULL tcp timer pointer. Instead, the retransmit timer is being
armed while the persist timer is still armed.
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On Saturday, October 11, 2014 2:19:19 am Jason Wolfe wrote:
On Fri, Oct 10, 2014 at 8:53 AM, John Baldwin j...@freebsd.org wrote:
On Thursday, October 09, 2014 02:31:32 PM Jason Wolfe wrote:
On Wed, Oct 8, 2014 at 12:29 PM, John Baldwin j...@freebsd.org wrote:
My only other thought
On Wednesday, October 08, 2014 10:56:56 AM Jason Wolfe wrote:
On Tue, Oct 7, 2014 at 11:28 AM, John Baldwin j...@freebsd.org wrote:
On Tuesday, October 07, 2014 2:06:42 pm Jason Wolfe wrote:
Hey John,
Happy to do this, but the pool of boxes is about 500 large, which is the
reason
tree and was curious what other folks thought of the idea. I do not have any
workloads I am working with where this is a factor.
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On Thursday, October 02, 2014 06:40:21 PM Jason Wolfe wrote:
On Wed, Sep 10, 2014 at 8:24 AM, John Baldwin j...@freebsd.org wrote:
On Monday, September 08, 2014 03:34:02 PM Eric van Gyzen wrote:
On 09/08/2014 15:19, Sean Bruno wrote:
On Mon, 2014-09-08 at 12:09 -0700, Sean Bruno wrote
. dedicated char device with its own ioctl's
Is there any recommendations on which way is preferred?
I would be inclined towards 2). It is more flexible if you need to add more
custom ioctls in the future.
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at that
patch?
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);
}
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. Can you enable WITNESS (without WITNESS_SKIPSPIN) on
this box?
Also, do 'tid 13' and 'bt' in kgdb to see what the thread holding the lock
was doing.
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on an AF_INET6 socket) will work on FreeBSD. I'm not sure
how hard it would be to fix in6_mcast.c to support IPv4 groups. bms@ might
know.
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On Tuesday, August 26, 2014 11:05:12 am Alan Somers wrote:
On Mon, Aug 25, 2014 at 1:52 PM, John Baldwin j...@freebsd.org wrote:
On Friday, August 22, 2014 01:34:28 PM Harald Schmalzbauer wrote:
Bezüglich Yuri's Nachricht vom 02.09.2013 06:54 (localtime):
Please check in this patch
Hello,
I guess this fix should make it into 10.1.
Can someone check please?
A fix has to make into HEAD first. I've cc'd Alan who responded to the bug.
Alan, note that glebius@ already committed the test case to HEAD a while ago.
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a tradeoff between having the timer run at all. However, I
suspect that with high packet rates it probably is cheaper to have the timer
run periodically and reschedule itself if it notices it isn't needed as you
suggested. Do you want to write up a patch and test it?
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On Saturday, July 19, 2014 1:28:19 pm John Baldwin wrote:
On Thursday 17 July 2014 19:45:56 Julian Elischer wrote:
On 7/15/14, 10:34 PM, John Baldwin wrote:
On Saturday, July 12, 2014 5:14:00 pm Rick Macklem wrote:
Yonghyeon Pyun wrote:
On Fri, Jul 11, 2014 at 09:54:23AM -0400, John
is correct, but please file this as a bug report so we can
hopefully wrangle another person to review this.
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instead of IF_ADDR_WLOCK? Also, strictly speaking
it might be best to use if_maddr_rlock() instead of directly using
IF_ADDR_RLOCK().
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invalid. Return the new mbuf chain on success, NULL on fail-
ure (the mbuf chain is freed in this case). Note: It does not
allocate any mbuf clusters, so len must be less than or equal to
MHLEN.
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On Thursday 17 July 2014 19:45:56 Julian Elischer wrote:
On 7/15/14, 10:34 PM, John Baldwin wrote:
On Saturday, July 12, 2014 5:14:00 pm Rick Macklem wrote:
Yonghyeon Pyun wrote:
On Fri, Jul 11, 2014 at 09:54:23AM -0400, John Baldwin wrote:
On Thursday, July 10, 2014 6:31:43 pm Rick
On Saturday, July 12, 2014 5:14:00 pm Rick Macklem wrote:
Yonghyeon Pyun wrote:
On Fri, Jul 11, 2014 at 09:54:23AM -0400, John Baldwin wrote:
On Thursday, July 10, 2014 6:31:43 pm Rick Macklem wrote:
John Baldwin wrote:
On Thursday, July 03, 2014 8:51:01 pm Rick Macklem wrote
On Thursday, July 10, 2014 6:31:43 pm Rick Macklem wrote:
John Baldwin wrote:
On Thursday, July 03, 2014 8:51:01 pm Rick Macklem wrote:
Russell L. Carter wrote:
On 07/02/14 19:09, Rick Macklem wrote:
Could you please post the dmesg stuff for the network
interface
)
+ m = m_defrag(*m_headp, M_NOWAIT);
if (m == NULL) {
adapter-mbuf_alloc_failed++;
m_freem(*m_headp);
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don't see any obvious reason.
If nobody objects on -net@, I can do it.
I think this looks fine to merge.
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is mounted. but the system is running the old kernel.
Pulling the 2nd fixed the problem.
What can cause this to happen? Is it a supermicro problem (it's a 5017R-MTF
superserver) or is it something with FreeBSD.
Are you using a software RAID between the two disks?
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the code to use humanize_number? (It might not, but if it does, I
think that would be preferable.)
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On Monday, June 23, 2014 1:12:54 pm Roger Pau Monné wrote:
On 23/06/14 18:49, Alexander V. Chernikov wrote:
On 23.06.2014 20:39, Alexander V. Chernikov wrote:
On 23.06.2014 19:32, John Baldwin wrote:
On Friday, June 20, 2014 11:25:51 am Roger Pau Monné wrote:
Hello,
I've stumbled
this earlier so that we allow outside consumers
to detach from an interface before it is destroyed. I'm not sure if it would
break things, but I would be tempted to move this even earlier right after it
is removed from the global ifnet list but before the taskqueue_drain, etc.
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such as the NIC being used?
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can't trust the return value.
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On Thursday, August 29, 2013 11:37:08 am Scott Long wrote:
On Aug 29, 2013, at 7:42 AM, John Baldwin j...@freebsd.org wrote:
On Saturday, August 24, 2013 10:16:33 am Robert Watson wrote:
There are a number of other places in the kernel where migration to an
rmlock
makes sense
On Monday, August 05, 2013 6:49:01 am Meny Yossefi wrote:
John,
Will this be committed to 9.2 as well ?
Yes, I committed it yesterday.
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The following reply was made to PR kern/180791; it has been noted by GNATS.
From: John Baldwin j...@freebsd.org
To: bug-follo...@freebsd.org,
shah...@mellanox.com
Cc:
Subject: Re: kern/180791: [ofed] [patch] Kernel crash on ifdown and kldunload
mlxen
Date: Thu, 25 Jul 2013 15:18:06 -0400
The following reply was made to PR kern/180430; it has been noted by GNATS.
From: John Baldwin j...@freebsd.org
To: Meny Yossefi me...@mellanox.com
Cc: bug-follo...@freebsd.org bug-follo...@freebsd.org
Subject: Re: kern/180430: [ofed] [patch] Bad UDP checksum calc for fragmented
packets
Date
The following reply was made to PR kern/180430; it has been noted by GNATS.
From: John Baldwin j...@freebsd.org
To: bug-follo...@freebsd.org,
me...@mellanox.com
Cc:
Subject: Re: kern/180430: [ofed] [patch] Bad UDP checksum calc for fragmented
packets
Date: Fri, 19 Jul 2013 11:13:44 -0400
On Wednesday, July 17, 2013 5:23:37 pm Mikolaj Golub wrote:
On Tue, Jul 16, 2013 at 11:12:46AM -0400, John Baldwin wrote:
On Thursday, March 15, 2012 8:07:46 pm Sean Bruno wrote:
On Thu, 2012-03-15 at 16:59 -0700, Sean Bruno wrote:
Hey, I just found a bind bug ticket in my queue about
, but the patch above will output enough debugging to verify it is working
without requiring a verbose boot.
John Baldwin wrote:
On Monday, June 10, 2013 3:13:11 pm Mr. Clif wrote:
Hi John and Pyun,
Ok got the new kernel installed and tested. Yes it works! :-) Maybe that
will also fix a simular
this is bind() not bind ... :-)
Did the recent commit to HEAD fix this btw?
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(MLX4_WQE_CTRL_IP_CSUM);
+ if (mb-m_pkthdr.csum_flags (CSUM_TCP|CSUM_UDP)) {
+ tx_desc-ctrl.srcrb_flags |=
+ cpu_to_be32(MLX4_WQE_CTRL_TCP_UDP_CSUM);
priv-port_stats.tx_chksum_offload++;
}
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is at the URL below. I wasn't able to test your specific use case yet
however (of the BIOS using an invalid range).
Thanks for your help,
Clif
John Baldwin wrote:
On Monday, June 10, 2013 3:13:11 pm Mr. Clif wrote:
Hi John and Pyun,
Ok got the new kernel installed and tested
The following reply was made to PR kern/17; it has been noted by GNATS.
From: John Baldwin j...@freebsd.org
To: bug-follo...@freebsd.org,
shah...@mellanox.com
Cc:
Subject: Re: kern/17: [ofed] [patch] Bug assigning HCA from IB to ETH
Date: Thu, 27 Jun 2013 14:10:42 -0400
Thanks, I
?
Specifically this line:
0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters)
If so, it may be that the IPoIB layer has an mbuf leak. The rest of netstat -
m might be useful here as you can see if any of the zones are full.
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. Where can I find it?
2. How can I compile ipoib support?
You will have to create one. You should be able to use the existing module
Makefiles as a guide.
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?). Can you
tcpdump on the ib0 interface and see if your pings on ib0.100 show up and if
they have the appropriate headers?
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DC_USEIOSPACE
#include dev/dc/if_dcreg.h
If this fixes it then I can take this PR as a test case for handling the ISA
enable bit in the PCI-PCI bridge code.
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. None of these should trigger in
production and all of them are an indication that something is very wrong
with the packet or the caller.
Eh, but if the only caller is ether_nh_input() then by definition you know
that m-m_pkthdr.rcvif == ifp.
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vlandev ib0 vlan 0xc
This will create a new vlanX interface (ifconfig will its precise name with
its unit number to stdout).
Simpler though is just 'ifconfig ib0.12 create' (and how most folks
expect subinterfaces to be named).
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? It looks like the OFED bits in
FreeBSD map Linux sysfs entries to sysctl nodes, but I don't have a box with
IB handy to see what it looks like at runtime.
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On Thursday, May 23, 2013 5:05:39 pm Guy Helmer wrote:
On Jan 9, 2013, at 2:35 PM, John Baldwin j...@freebsd.org wrote:
On Tuesday, November 13, 2012 4:40:57 pm Guy Helmer wrote:
To try to completely resolve the race in bpfread(), I have put together
these changes to add a flag
=revisionrevision=235553
This may not help with any issues in pf(4), but we had workloads at work (not
involving pf) where this bug could cause boxes to spend 100% CPU in igb
threads.
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http
that object directly
rather than an fd.
Laurie
--- On Thu, 4/18/13, John Baldwin j...@freebsd.org wrote:
From: John Baldwin j...@freebsd.org
Subject: Re: shm_map questions
To: freebsd-net@freebsd.org
Cc: Laurie Jennings laurie_jennings_1...@yahoo.com
Date: Thursday, April 18, 2013, 6:50 AM
that do not have this problem, but maybe the
problem is with my sysctl.conf and loader.conf settings:
Which NIC driver are you using?
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) {
- ixgbe_rearm_queues(adapter, (u64)(1 que-msix));
- return (TRUE);
- }
-
- return (FALSE);
+ return ((staterr IXGBE_RXD_STAT_DD) != 0);
}
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;
}
/*
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To unsubscribe, send any mail to freebsd-net-unsubscr...@freebsd.org
The following reply was made to PR kern/176446; it has been noted by GNATS.
From: John Baldwin j...@freebsd.org
To: freebsd-net@freebsd.org
Cc: Jack Vogel jfvo...@gmail.com,
bug-follo...@freebsd.org,
Mike Karels m...@karels.net
Subject: Re: kern/176446: [netinet] [patch] Concurrency in ixgbe
The following reply was made to PR kern/176446; it has been noted by GNATS.
From: John Baldwin j...@freebsd.org
To: freebsd-net@freebsd.org
Cc: Jack Vogel jfvo...@gmail.com,
bug-follo...@freebsd.org
Subject: Re: kern/176446: [netinet] [patch] Concurrency in ixgbe driving
out-of-order packet
On Friday, April 19, 2013 12:32:18 pm C. L. Martinez wrote:
On Friday, April 19, 2013, John Baldwin j...@freebsd.org wrote:
On Friday, April 19, 2013 3:11:41 am C. L. Martinez wrote:
Hi all,
I have a strange problem with my FreeBSD 9.1 (fully patched): I loose
ssh
sessions from time
On Friday, April 19, 2013 4:14:43 pm C. L. Martinez wrote:
On Friday, April 19, 2013, John Baldwin j...@freebsd.org wrote:
On Friday, April 19, 2013 12:32:18 pm C. L. Martinez wrote:
On Friday, April 19, 2013, John Baldwin j...@freebsd.org wrote:
On Friday, April 19, 2013 3:11:41 am C. L
multiple processes by passing it
across a UNIX domain socket.
Hope this helps.
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On Tuesday, April 02, 2013 2:33:18 pm Vijay Singh wrote:
Hi, this is based on the the understanding that the SS_NBIO is a
socket state, and not a state of the socket buffer.
Committed, thanks!
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other system calls should probably be
equivalent
to vhold, whereas things like open/dup (and storing an fd in a cmsg) should be
more like vref. close() should then be a vrele().
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http
on a standalone machine?
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interrupt filters to really work properly
and be on by default.
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The following reply was made to PR kern/176446; it has been noted by GNATS.
From: John Baldwin j...@freebsd.org
To: Charbon, Julien jchar...@verisign.com
Cc: bug-follo...@freebsd.org,
De La Gueronniere, Marc mdelagueronni...@verisign.com,
j...@freebsd.org
Subject: Re: kern/176446: [netinet
The following reply was made to PR kern/176446; it has been noted by GNATS.
From: John Baldwin j...@freebsd.org
To: bug-follo...@freebsd.org,
jchar...@verisign.com
Cc:
Subject: Re: kern/176446: [netinet] [patch] Concurrency in ixgbe driving
out-of-order packet process and spurious RST
Date
The following reply was made to PR kern/172113; it has been noted by GNATS.
From: John Baldwin j...@freebsd.org
To: bug-follo...@freebsd.org,
egrosb...@rdtc.ru
Cc:
Subject: Re: kern/172113: [panic] [e1000] [patch] 9.1-RC1/amd64 panices in
igb(4): m_getjcl: invalid cluster type
Date: Thu, 21
read this in full, this does seem
to very much be what I want and is a better solution than ignoring
idle handling entirely. Ironic that this was posted a few weeks after my
patch. :) Clearly this is not an isolated workflow.
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