From: Denys Fedoryschenko <denys@visp.net.lb>
To: Greg KH <gregkh@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: unable to handle kernel NULL pointer / tty / 2.6.31-vanilla/ still persists
Date: Tue, 15 Sep 2009 19:06:14 +0300 [thread overview]
Message-ID: <200909151906.15043.denys@visp.net.lb> (raw)
In-Reply-To: <20090915150455.GA22282@suse.de>
This time i didnt notice anything suspicious. From daemons - zebra,
ssh/telnet, snmpd (net-snmp). Job - NAT/firewall, QoS (HFSC/HTB) and routing.
Nothing else (it is semi-embedded system with busybox).
Sep 15 10:04:46 10.22.24.2 globax: [default][2846]B/G 0/100|buf
1328692B+4478B/941P 69428216/942/74260 (globalproof1) spd 996330<1875000 sock
128000>64000>64000 rtt 0.393943 delay 0 pps 705 so 0 st 0 dr
Sep 15 10:04:50 10.22.24.2 ripd[5017]: rip_read: cannot find interface for
packet from 80.83.24.49 port 520
Sep 15 10:04:51 10.22.24.2 kernel: [273169.803628] BUG: unable to handle
kernel NULL pointer dereference at (null)
Sep 15 10:04:51 10.22.24.2 kernel: [273169.803710] IP: [<c0250f08>]
process_echoes+0x65/0x240
Sep 15 10:04:51 10.22.24.2 kernel: [273169.803785] *pdpt = 000000002f97d001
*pde = 0000000000000000
Latest ssh bruteforce attempts was 10-20 minutes ago.
On Tuesday 15 September 2009 18:04:55 Greg KH wrote:
> On Tue, Sep 15, 2009 at 10:32:53AM +0300, Denys Fedoryschenko wrote:
> > Kernel 2.6.31-rc7
> > x86 , 32-bit
> > gcc 4.4.1
> >
> > Happened on heavy network load, looks like as previous one, seems problem
> > still persists.
> > It is hyperthreading Xeon, as i heard on such CPU's SMP bugs most easy to
> > trigger. But for me triggered after few days of operation.
> >
> > Here is oops:
>
> Ugh.
>
> What are you doing at the time of this happening? What kind of load is
> on the system?
>
> thanks,
>
> greg k-h
next prev parent reply other threads:[~2009-09-15 16:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-15 7:32 unable to handle kernel NULL pointer / tty / 2.6.31-vanilla/ still persists Denys Fedoryschenko
2009-09-15 15:04 ` Greg KH
2009-09-15 16:06 ` Denys Fedoryschenko [this message]
2009-09-17 9:35 ` Frederic Weisbecker
2009-09-17 9:58 ` Denys Fedoryschenko
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