Fw: 2.4.21 oops

Fw: 2.4.21 oops

[Andrew Morton]

This kills 2.5.71++ as well.

Program received signal SIGTRAP, Trace/breakpoint trap.
skb_over_panic (skb=0xc0400330, sz=-1068485248, here=0xc034540e) at net/core/skbuff.c:87
87              BUG();
(gdb) bt
#0  skb_over_panic (skb=0xc0400330, sz=-1068485248, here=0xc034540e) at net/core/skbuff.c:87
#1  0xc0345417 in add_grhead (skb=0xce2e7b68, pmc=0xcc7e05f0, type=44, ppgr=0x2c) at include/linux/skbuff.h:840
#2  0xc03454fe in add_grec (skb=0xce2e7b68, pmc=0xcc7e05f0, type=4, gdeleted=0, sdeleted=0) at net/ipv6/mcast.c:1325
#3  0xc0345b9b in mld_send_cr (idev=0xcecc9290) at net/ipv6/mcast.c:1513
#4  0xc03468e1 in mld_ifc_timer_expire (data=3469513360) at net/ipv6/mcast.c:1904
#5  0xc012c0c7 in run_timer_softirq (h=0xc0504a08) at kernel/timer.c:428
#6  0xc012815a in do_softirq () at kernel/softirq.c:96
#7  0xc0119783 in smp_apic_timer_interrupt (regs=
      {ebx = -1072657500, ecx = 0, edx = -1068474368, esi = -1068474368, edi = -1072672768, ebp = -1068466236, eax = 0, xds = -1072693125, xes = -1068498821, orig_eax = -17, eip = -1072657456, xcs = 96, eflags = 582, esp = -1068466220, xss = -1072657306})
    at arch/i386/kernel/apic.c:1061
#8  0xc010b8c2 in apic_timer_interrupt ()
#9  0xc0108c66 in cpu_idle () at arch/i386/kernel/process.c:146
#10 0xc010506d in rest_init () at init/main.c:375
#11 0xc0508862 in start_kernel () at init/main.c:467


Begin forwarded message:

Date: Mon, 16 Jun 2003 13:40:11 +0200 (CEST)
From: Andrzej Sosnowski <raptor@lists.raptor.pl>
To: linux-kernel@vger.kernel.org
Subject: 2.4.21 oops


Hi.

Kernel makes an oops while executing the following script:

#!/bin/sh
for IP in `/usr/bin/seq 3 500`; do
  ip addr add 3ffe:80ee:c1d::$IP/48 dev eth0
  ip addr add 3ffe:80ee:c1d::a:$IP/48 dev eth0
done

Result:
kernel BUG sched.c 564!
(sorry for incomplete oops message)

Tested on:
  debian 2.4.21
  debian/redhat 2.4.21-grsec 1.9.10
  redhat 2.4.21-uv2-grsec 1.9.10

This script with 2.4.20 working fine.

-- 
____________________________________________________________________
andrzej sosnowski * raptor@raptor.pl * http://raptor.pl * 0xB71774A2

Re: 2.4.21 oops

[David S. Miller]

   From: Andrew Morton <akpm@digeo.com>
   Date: Mon, 16 Jun 2003 15:30:29 -0700

   This kills 2.5.71++ as well.

I forwarded this to David Stevens, he last played in
this area so he might be able to fix it fast.

He obviously didn't add the bug, since it exists in 2.4.x
which doesn't have his IGMPv3 mods...