Subject: Re: 2.6.23-mm1 s390 driver problem

From: Cedric Le Goater <clg-NmTC/[email-masked]>
Date: Fri, 19 Oct 2007 13:17:22 +0200

>> that helped going a little further in the boot process but we then have 
>> a network issue when bringing the network interface up :
> 
> please cc netdev on network issues.

yes.

>> Bringing up interface eth0:  ------------Ý cut here ¨------------ 
>> Kernel BUG at 0000000000000002 Ýverbose debug info unavailable¨ 
>> illegal operation: 0001 Ý#1¨ 
>> Modules linked in: 
>> CPU:    0    Not tainted 
>> Process ip (pid: 1167, task: 0000000001d46038, ksp: 00000000025efb28) 
>> Krnl PSW : 0704200180000000 0000000000000002 (0x2) 
>>            R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:2 PM:0 EA:3 
>> Krnl GPRS: 0000000000000000 0000000000000000 000000000241f600 0000000001c8d
>>            00000000000086dd 0000000001eb6d70 0000000000000000 0000000001c8d
>>            0000000001eb6d40 00000000003abc28 0000000001eb6d00 00000000025ef
>>            000000000241f600 00000000003b6d18 00000000002b33d2 00000000025ef
>> Krnl Code:>0000000000000002: 0000               unknown 
>>            0000000000000004: 0000               unknown 
>>            0000000000000006: 0000               unknown 
>>            0000000000000008: 0000               unknown 
>>            000000000000000a: 0000               unknown 
>>            000000000000000c: 0000               unknown 
>>            000000000000000e: 0000               unknown 
>>            0000000000000010: 0000               unknown 
>> Call Trace: 
>> (Ý<00000000002b3352>¨ neigh_connected_output+0x76/0x138) 
>>  Ý<0000000000325402>¨ ip6_output2+0x2da/0x470 
>>  Ý<0000000000326ea6>¨ ip6_output+0x816/0x1064 
>>  Ý<0000000000338e46>¨ __ndisc_send+0x416/0x6a8 
>>  Ý<0000000000339330>¨ ndisc_send_rs+0x58/0x68 
>>  Ý<000000000032cbf4>¨ addrconf_dad_completed+0xbc/0x100 
>>  Ý<000000000032d2de>¨ addrconf_dad_start+0xa2/0x14c 
>>  Ý<000000000032d408>¨ addrconf_add_linklocal+0x80/0xa8 
>>  Ý<000000000032fa7e>¨ addrconf_notify+0x2de/0x8d4 
>>  Ý<0000000000383990>¨ notifier_call_chain+0x5c/0x98 
>>  Ý<0000000000063bca>¨ __raw_notifier_call_chain+0x26/0x34 
>>  Ý<0000000000063c06>¨ raw_notifier_call_chain+0x2e/0x3c 
>>  Ý<00000000002aa54c>¨ call_netdevice_notifiers+0x34/0x44 
>>  Ý<00000000002ad1aa>¨ dev_open+0x9e/0xe0 
>>  Ý<00000000002ad80a>¨ dev_change_flags+0x9e/0x1cc 
>>  Ý<0000000000302c74>¨ devinet_ioctl+0x650/0x73c 
>>  Ý<00000000003050ba>¨ inet_ioctl+0xde/0xf4 
>>  Ý<000000000029a8d0>¨ sock_ioctl+0x1cc/0x2dc 
>>  Ý<00000000000cb844>¨ do_ioctl+0xb8/0xcc 
>>  Ý<00000000000cb8f2>¨ vfs_ioctl+0x9a/0x3ec 
>>  Ý<00000000000cbc96>¨ sys_ioctl+0x52/0x7c 
>>  Ý<0000000000022484>¨ sysc_noemu+0x10/0x16 
>>  Ý<000002000010df12>¨ 0x2000010df12 
> 
> that's a network issue ;)
> 
>> 00000000002b3352 gives : include/linux/netdevice.h:819
>>
> 
> I have a feeling that we fixed this.  But there's no BUG at 2.6.23-mm1's
> include/linux/netdevice.h:819.  

but dev->header_ops is bogus. right ?

> How about setting CONFIG_DEBUG_BUGVERBOSE=y?

it is set :(

C.