Including a patch from kernel.org. Given the size of the patch, you
may not trust it, but that's what I got ..
http://www.kernel.org/diff/diffview.cgi?file=%2Fpub%2Flinux%2Fkernel%2Fv2.6%2Fpatch-2.6.11.4.bz2;z=15
If I understand the situation correctly, this needs to be reassigned
and cloned to a couple kernels, but I'll that that up to someone else
to confirm.
Justin
On Thu, Mar 17, 2005 at 02:09:19AM -0500, pryzbyj wrote:
> I assume that you have seen this:
> http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.11.4
>
> If not .. tag patch:) In less than 100 lines, even!
>
> Justin
>
> On Thu, Mar 17, 2005 at 02:54:56AM +0100, Christian wrote:
> > Package: ppp
> > Version: 2.4.2+20040428-6
> > Severity: critical
> > Justification: breaks the whole system
> >
> > hello pppeople,
> >
> > i've encountered serious problems with pppd and days of monitoring the
> > issues lead me to the assumption that pppd is to blame. feel free to
> > tell me otherwise and i'll happily forward the problem to the right
> > people - because i am not guru enough to fix it.
> >
> > the problem in short: i am using pppd with pppoe (ADSL dialup) i get
> > disconnected by my ISP once a day and pppd receives "LCP terminated by
> > peer" then. normally pppd will reconnect and the box would be online
> > again. this does not happen anymore, instead 30min after disconnect all
> > RAM is chewed up by *something* (still don't know by what, please read
> > on) and OOM killer kicks in, killing almost every application.
> >
> > i have reported the issue to the linux-kernel mailinglist first, because
> > i thought it was a kernel issue:
> > http://lkml.org/lkml/2005/3/8/173
> > http://lkml.org/lkml/2005/3/10/109
> > maybe the replies are noteworthy too.
> >
> > yesterday i hit the issue again, with more (hopefully helpful) details:
> > http://www.ussg.iu.edu/hypermail/linux/kernel/0503.2/0316.html
> > again, the time between "LCP terminated by peer" to the first OOM
> > messages are (alsmost exactly) 30min. when this happens, i am usually
> > not around, so when i get to the machine, OOM has already happened. i
> > can recover the machine (no reboot, but SYSRQ-E) and i have to kill -9
> > pppd, anything else does not work:
> >
> > http://nerdbynature.de/bits/sheep/2.6.11/oom/pppd.log
> > ("Terminating on signal 15" does not work, "+++ killed by SIGKILL +++"
> > is the only choice.)
> >
> > i first noticed this behaviour with a new kernel, namely 2.6.11, but
> > downgrading to a former (stable for me) kernel (2.6.11-rc5-bk2) did not
> > help. instead, i downgraded from pppd-2.4.3-20041231+2 to
> > ppp-2.4.2+20040428-6 and got rid of the problem! 2.4.3 was uploaded on
> > 26.02.2005, and a couple of days later i switched to a new kernel and
> > did a "apt-get upgrade". that could be the cause, i suspected kernel
> > issues first.
> >
> > have a look at http://nerdbynature.de/bits/sheep/2.6.11/oom/ for
> > further details, feel free to ask. i still did not manage to reproduce
> > the problem "by hand", e.g. by setting up a pppoe server on the same
> > machine, connecting with "pppd call..." and killing the pppoe server
> > (in the hope that it might send "LCP terminated by peer" to the pppd").
> >
> >
> > thank you for your time,
> > Christian.
> >
> > -- System Information:
> > Debian Release: 3.1
> > APT prefers unstable
> > APT policy: (990, 'unstable'), (1, 'experimental')
> > Architecture: i386 (i686)
> > Kernel: Linux 2.6.11.3
> > Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
> >
> > Versions of packages ppp depends on:
> > ii libc6 2.3.2.ds1-20 GNU C Library: Shared
> > libraries an
> > ii libpam-modules 0.76-22 Pluggable Authentication
> > Modules f
> > ii libpam-runtime 0.76-22 Runtime support for the PAM
> > librar
> > ii libpam0g 0.76-22 Pluggable Authentication
> > Modules l
> > ii libpcap0.7 0.7.2-7 System interface for
> > user-level pa
> > ii libssl0.9.7 0.9.7e-3 SSL shared libraries
> > ii makedev 2.3.1-76 creates device files in /dev
> > ii netbase 4.20 Basic TCP/IP networking system
> > ii procps 1:3.2.5-1 /proc file system utilities
> >
> > -- no debconf information
> >
> >
> > --
> > To UNSUBSCRIBE, email to [EMAIL PROTECTED]
> > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
> >
>
> --
> Justin Pryzby
> whois jgalt
>
> References
>
> [0]
--
Justin Pryzby
whois jgalt
References
[0]
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<pre>
<div class="subh"><a name="15">--- a/drivers/net/ppp_async.c 2005-03-15
16:09:56 -08:00</a>
</div><div class="addh">+++ b/drivers/net/ppp_async.c 2005-03-15 16:09:56
-08:00
</div><div class="hunk">@@ -1000,7 +1000,7 @@
</div><div class="ctxt"> data += 4;
</div><div class="ctxt"> dlen -= 4;
</div><div class="ctxt"> /* data[0] is code, data[1] is length */
</div><div class="subl">- while (dlen >= 2 && dlen >=
data[1]) {
</div><div class="addl">+ while (dlen >= 2 && dlen >=
data[1] && data[1] >= 2) {
</div><div class="ctxt"> switch (data[0]) {
</div><div class="ctxt"> case LCP_MRU:
</div><div class="ctxt"> val = (data[2] << 8) +
data[3];
</div></pre>
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