Messages in this thread | | | Date | Tue, 11 Mar 2003 11:14:09 +0200 | From | Abraham van der Merwe <> | Subject | kernel panic: bug in sch_sfq.c |
| |
Hi!
I have a box that crashed today. Below is the decoded kernel panic. If you track down the bug PLEASE send me a patch.
------------< snip <------< snip <------< snip <------------ ksymoops 2.4.8 on i686 2.4.20-rc1. Options used -v vmlinux-2.4.21-pre5 (specified) -K (specified) -L (specified) -O (specified) -m System.map-2.4.21-pre5 (specified)
Unable to handle kernel NULL pointer dereference at virtual address 00000004 *pde = 00000000 Oops: 0002 CPU: 0 EIP: 0010:[<c01a5399>] Not tainted Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010202 eax: 00000000 ebx: c7b9a9e8 ecx: 0000007f edx: c7a8eef8 esi: c7b9ab08 edi: 000007f0 ebp: c7a8e060 esp: c021deb8 ds: 0018 es: 0018 ss: 0018 Process swapper (pid: 0, stackpage=c021d000) Stack: c7b9a9e8 c7b9ab08 c7f7ee00 c7b9a860 c7b893c0 c7f7ee00 c7b9a860 00000000 c01a3507 c7b5c680 7fb9a9f0 c01a339e c7a8e000 ffffffff 00000018 00000006 c7b9a800 00000018 00000006 c7b9a800 c7b9a9e8 c7b9ab08 c7f7ee00 c01a371c Call Trace: [<c01a3507>] [<c01a339e>] [<c01a371c>] [<c019f7a3>] [>c019949d>] [<c0115a6a>] [<c01082bd>] [<c0105240>] [<c0105240>] [<c010a528>] [<c0105240>] [<c0105240>] [<c0105263>] [<c01052d2>] [<c0105000>] [<c0105027>] Code: 89 50 04 89 02 8b 5c 24 24 c7 03 00 00 00 00 c7 43 04 00 00
>>EIP; c01a5399 <sfq_dequeue+59/1b0> <=====
>>esp; c021deb8 <init_task_union+1eb8/2000>
Trace; c01a3507 <htb_dequeue_tree+217/230> Trace; c01a339e <htb_dequeue_tree+ae/230> Trace; c01a371c <htb_dequeue+16c/250> Trace; c019f7a3 <qdisc_restart+13/d0> Trace; c0115a6a <do_softirq+5a/b0> Trace; c01082bd <do_IRQ+9d/b0> Trace; c0105240 <default_idle+0/30> Trace; c0105240 <default_idle+0/30> Trace; c010a528 <call_do_IRQ+5/d> Trace; c0105240 <default_idle+0/30> Trace; c0105240 <default_idle+0/30> Trace; c0105263 <default_idle+23/30> Trace; c01052d2 <cpu_idle+42/60> Trace; c0105000 <_stext+0/0> Trace; c0105027 <rest_init+27/30>
Code; c01a5399 <sfq_dequeue+59/1b0> 00000000 <_EIP>: Code; c01a5399 <sfq_dequeue+59/1b0> <===== 0: 89 50 04 mov %edx,0x4(%eax) <===== Code; c01a539c <sfq_dequeue+5c/1b0> 3: 89 02 mov %eax,(%edx) Code; c01a539e <sfq_dequeue+5e/1b0> 5: 8b 5c 24 24 mov 0x24(%esp,1),%ebx Code; c01a53a2 <sfq_dequeue+62/1b0> 9: c7 03 00 00 00 00 movl $0x0,(%ebx) Code; c01a53a8 <sfq_dequeue+68/1b0> f: c7 43 04 00 00 00 00 movl $0x0,0x4(%ebx)
<0>Kernel panic: Aiee, killing interrupt handler! ------------< snip <------< snip <------< snip <------------
Below are the rules that were installed on the system:
------------< snip <------< snip <------< snip <------------ /sbin/tc qdisc del dev eth0 root /sbin/tc qdisc del dev eth1 root /sbin/iptables -t mangle -F qos /sbin/iptables -t mangle -Z qos /sbin/tc qdisc add dev eth0 root handle 1: htb default 5 r2q 1 /sbin/tc class add dev eth0 parent 1: classid 1:1 htb rate 96kbit /sbin/tc class add dev eth0 parent 1:1 classid 1:2 htb rate 96kbit ceil 96kbit /sbin/tc class add dev eth0 parent 1:2 classid 1:3 htb rate 48kbit ceil 96kbit prio 1 /sbin/tc qdisc add dev eth0 handle 3: parent 1:3 sfq perturb 10 limit 31 /sbin/tc class add dev eth0 parent 1:2 classid 1:4 htb rate 24kbit ceil 96kbit prio 1 /sbin/tc qdisc add dev eth0 handle 4: parent 1:4 sfq perturb 10 limit 31 /sbin/tc class add dev eth0 parent 1:2 classid 1:5 htb rate 16kbit ceil 96kbit prio 2 /sbin/tc qdisc add dev eth0 handle 5: parent 1:5 sfq perturb 10 limit 31 /sbin/iptables -t mangle -A qos -o eth0 -s 66.8.85.0/28 -j CLASSIFY --set-class 1:3 /sbin/iptables -t mangle -A qos -o eth0 -s 66.8.85.80/28 -j CLASSIFY --set-class 1:4 /sbin/iptables -t mangle -A qos -o eth0 -s 192.116.106.192/29 -j CLASSIFY --set-class 1:0 /sbin/iptables -t mangle -A qos -o eth0 -s 66.8.28.48/29 -j CLASSIFY --set-class 1:0 /sbin/tc qdisc add dev eth1 root handle 1: htb default 5 r2q 2 /sbin/tc class add dev eth1 parent 1: classid 1:1 htb rate 512kbit /sbin/tc class add dev eth1 parent 1:1 classid 1:2 htb rate 256kbit ceil 512kbit /sbin/tc class add dev eth1 parent 1:2 classid 1:3 htb rate 128kbit ceil 512kbit prio 1 /sbin/tc qdisc add dev eth1 handle 3: parent 1:3 sfq perturb 10 limit 169 /sbin/tc class add dev eth1 parent 1:2 classid 1:4 htb rate 64kbit ceil 512kbit prio 1 /sbin/tc qdisc add dev eth1 handle 4: parent 1:4 sfq perturb 10 limit 169 /sbin/tc class add dev eth1 parent 1:2 classid 1:5 htb rate 32kbit ceil 512kbit prio 2 /sbin/tc qdisc add dev eth1 handle 5: parent 1:5 sfq perturb 10 limit 169 /sbin/iptables -t mangle -A qos -o eth1 -d 66.8.85.0/28 -j CLASSIFY --set-class 1:3 /sbin/iptables -t mangle -A qos -o eth1 -d 66.8.85.80/28 -j CLASSIFY --set-class 1:4 /sbin/iptables -t mangle -A qos -o eth1 -d 192.116.106.192/29 -j CLASSIFY --set-class 1:0 /sbin/iptables -t mangle -A qos -o eth1 -d 66.8.28.48/29 -j CLASSIFY --set-class 1:0 ------------< snip <------< snip <------< snip <------------
I've made tons of info available on my home page for you to look at (proc files, vmlinux, System.map, original panic message, etc.
http://oasis.frogfoot.net/sfq/
--
Regards Abraham
I saw what you did and I know who you are.
___________________________________________________ Abraham vd Merwe [ZR1BBQ] - Frogfoot Networks P.O. Box 3472, Matieland, Stellenbosch, 7602 Cell: +27 82 565 4451 Http: http://www.frogfoot.net/ Email: abz@frogfoot.net
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |