lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <83a51e120712181021p4c4c2a13g8820271f1e00361b@mail.gmail.com>
Date:	Tue, 18 Dec 2007 13:21:10 -0500
From:	"James Nichols" <jamesnichols3@...il.com>
To:	"Jan Engelhardt" <jengelh@...putergmbh.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: After many hours all outbound connections get stuck in SYN_SENT

> Here is a purely hypothethical (and in practice unlikely) idea:
> Java opens up too many sockets (more than you really request) and the
> kernel, for whatever reason, does not deliver packets to programs
> which have maxed out their fds. Well it would already help if the
> java blob was split into multiple blobs (assuming the problem
> persists), as the best testcase is the smallest possible one. So if
> it is reproducable without the web blob, great step there.
>


Right, I don't disagree with you there.  FWIW, I can disable entire
parts of the application and have already narrowed down reproduction
of this issue to the 200 threads that make the webservice calls, so it
doesn't have anything to do with any of the GUI or other background
services that my application executes.


You said:

> Well you could still blame Java. I am sure that if you program was C,
> the problem could be narrowed down much easier.

I'm curious to know how this problem would be easier to narrow down if
it were written in C.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ