Updating src tree:
P src/crypto/external/bsd/openssl/lib/libcrypto/arch/arm/ghash-armv4.S
P src/doc/3RDPARTY
P src/sys/arch/arm/broadcom/bcm2835_vcaudio.c
P src/sys/arch/arm/broadcom/files.bcm2835
P src/sys/arch/arm/omap/if_cpsw.c
P src/sys/arch/arm/omap/if_cpswreg.h
P src/sys/dev/usb/if_run.c
P
On Sat, Mar 14, 2015 at 06:53:51AM +0800, Paul Goyette wrote:
On Fri, 13 Mar 2015, Christos Zoulas wrote:
On Mar 13, 6:32pm, hann...@eis.cs.tu-bs.de (J. Hannken-Illjes) wrote:
-- Subject: Re: DoS attack against TCP services
| What about the attached diff. It adds a counter of busy items
On Fri, 13 Mar 2015, Christos Zoulas wrote:
On Mar 13, 6:32pm, hann...@eis.cs.tu-bs.de (J. Hannken-Illjes) wrote:
-- Subject: Re: DoS attack against TCP services
| What about the attached diff. It adds a counter of busy items and
| stops enqueueing more work if an item is still busy.
|
|
https://github.com/ebijun/NetBSD/blob/master/Guide/Place/asiabsdcon.rst
starts from 18:30 JST:(40mins later
http://2015.asiabsdcon.org/streaming_track2.html
NetBSD BOF http://2015.asiabsdcon.org/timetable.html.ja#M4
Day 2: Room E 2015/3/13 18:30-21:00
riastradh,
aida, Development
On 12 Mar 2015, at 20:59, Christos Zoulas chris...@zoulas.com wrote:
| | Now we have a deadlock, softlck/0 waits for the mutex and therefore
| | callouts will no longer be processed and ciss holds the mutex and waits
| | for a callout through cv_timedwait.
|
| Thanks for looking into it!
On Mar 13, 1:00pm, hann...@eis.cs.tu-bs.de (J. Hannken-Illjes) wrote:
-- Subject: Re: DoS attack against TCP services
| This would be simple, changing dev/ic/ciss.c like:
|
| sc-sc_sme-sme_name =3D device_xname(sc-sc_dev);
| sc-sc_sme-sme_cookie =3D sc;
|
On Mar 13, 11:19am, hann...@eis.cs.tu-bs.de (J. Hannken-Illjes) wrote:
-- Subject: Re: DoS attack against TCP services
| The mutex involved is the sme_mtx protecting the struct sysmon_envsys, so
| our problem doesn't come from missing POLL.
That's what I thought.
| We already have it. If I
On 13 Mar 2015, at 13:03, Christos Zoulas chris...@zoulas.com wrote:
On Mar 13, 1:00pm, hann...@eis.cs.tu-bs.de (J. Hannken-Illjes) wrote:
-- Subject: Re: DoS attack against TCP services
| This would be simple, changing dev/ic/ciss.c like:
|
| sc-sc_sme-sme_name =3D
On 13 Mar 2015, at 12:53, Christos Zoulas chris...@zoulas.com wrote:
On Mar 13, 11:19am, hann...@eis.cs.tu-bs.de (J. Hannken-Illjes) wrote:
-- Subject: Re: DoS attack against TCP services
| The mutex involved is the sme_mtx protecting the struct sysmon_envsys, so
| our problem doesn't come
On Mar 13, 4:12pm, hann...@eis.cs.tu-bs.de (J. Hannken-Illjes) wrote:
-- Subject: Re: DoS attack against TCP services
| Can't it just try to acquire the lock and if it fails it spams, and
| does not deadlock? Or even better, finds the driver that blocks it,
| and bumps its timeout? It is
On Mar 13, 1:08pm, hann...@eis.cs.tu-bs.de (J. Hannken-Illjes) wrote:
-- Subject: Re: DoS attack against TCP services
| This was just an idea ... Maybe
|
| ...xs..timeout * sc-maxunits + 10
|
| and set xs timeout to 1 .. 5 seconds?
|
| I don't think it is possible to make it self adjusting as
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