Hello
I have always used vanilla kernel with very old patch for ATM
(name: linux-2.3.99-pre6-fore200e-0.2f.patch) It worked well -
trouble-free.
I have just tried vanilla 2.4.22, here is oops. ATM doesn't work :(
ksymoops 2.4.5 on i686 2.4.22. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.22/ (default)
-m /lib/modules/2.4.22/System.map (specified)
Aug 26 00:47:54 voices kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000010
Aug 26 00:47:54 voices kernel: c0263127
Aug 26 00:47:54 voices kernel: *pde = 00000000
Aug 26 00:47:54 voices kernel: Oops: 0002
Aug 26 00:47:54 voices kernel: CPU: 0
Aug 26 00:47:54 voices kernel: EIP: 0010:[<c0263127>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
Aug 26 00:47:54 voices kernel: EFLAGS: 00010286
Aug 26 00:47:54 voices kernel: eax: 00000000 ebx: ffffffff ecx: c02c7c14 edx: ffffff9e
Aug 26 00:47:54 voices kernel: esi: f78812b4 edi: 000061e1 ebp: f6f27800 esp: f78e5f04
Aug 26 00:47:54 voices kernel: ds: 0018 es: 0018 ss: 0018
Aug 26 00:47:54 voices kernel: Process atmarpd (pid: 8093, stackpage=f78e5000)
Aug 26 00:47:54 voices kernel: Stack: f6f27800 f7b2a880 f706b680 400f7020 00000000 00000003 f6fb7a80 f7b2a89c
Aug 26 00:47:54 voices kernel: 00000000 005d3339 f78812b4 00030002 f7a3e780 f7b7c005 00000003 0028f3c6
Aug 26 00:47:54 voices kernel: f78e5f24 00000007 000036a9 00000000 00000000 00000002 f78e4000 000061e1
Aug 26 00:47:54 voices kernel: Call Trace: [<c0260f83>] [<c01fac40>] [<c014f835>] [<c010770f>]
Aug 26 00:47:54 voices kernel: Code: f0 ff 48 10 a1 74 0f 36 c0 8b 40 18 83 48 14 08 85 d2 0f 85
>>EIP; c0263127 <atm_ioctl+927/c90> <=====
>>ebx; ffffffff <END_OF_CODE+7647f28/????>
>>ecx; c02c7c14 <atm_clip_ops_mutex+0/14>
>>edx; ffffff9e <END_OF_CODE+7647ec7/????>
>>esi; f78812b4 <_end+3752031c/3858a0c8>
>>edi; 000061e1 Before first symbol
>>ebp; f6f27800 <_end+36bc6868/3858a0c8>
>>esp; f78e5f04 <_end+37584f6c/3858a0c8>
Trace; c0260f83 <__lock_svc_proto_ioctl+43/80>
Trace; c01fac40 <sock_ioctl+40/80>
Trace; c014f835 <sys_ioctl+f5/2b0>
Trace; c010770f <system_call+33/38>
Code; c0263127 <atm_ioctl+927/c90>
00000000 <_EIP>:
Code; c0263127 <atm_ioctl+927/c90> <=====
0: f0 ff 48 10 lock decl 0x10(%eax) <=====
Code; c026312b <atm_ioctl+92b/c90>
4: a1 74 0f 36 c0 mov 0xc0360f74,%eax
Code; c0263130 <atm_ioctl+930/c90>
9: 8b 40 18 mov 0x18(%eax),%eax
Code; c0263133 <atm_ioctl+933/c90>
c: 83 48 14 08 orl $0x8,0x14(%eax)
Code; c0263137 <atm_ioctl+937/c90>
10: 85 d2 test %edx,%edx
Code; c0263139 <atm_ioctl+939/c90>
12: 0f 85 00 00 00 00 jne 18 <_EIP+0x18>
--
*[ ?ukasz Tr?bi?ski ]*
SysAdmin @wsisiz.edu.pl
In message <[email protected]>,Lukasz Tra
binski writes:
>I have always used vanilla kernel with very old patch for ATM
>(name: linux-2.3.99-pre6-fore200e-0.2f.patch) It worked well -
>trouble-free.
>I have just tried vanilla 2.4.22, here is oops. ATM doesn't work :(
yep, i screwed that up. when clip isnt a module, the common code try
to manipulate the module count while fails. see if this patch makes
it better -- apply with patch -p1 in your linux source tree.
--- linux-2.4.22/net/atm/common.c.000 Tue Aug 26 10:40:30 2003
+++ linux-2.4.22/net/atm/common.c Tue Aug 26 13:12:35 2003
@@ -672,7 +672,8 @@
}
if (try_atm_clip_ops()) {
ret_val = atm_clip_ops->clip_create(arg);
- __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
+ if (atm_clip_ops->owner)
+ __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
} else
ret_val = -ENOSYS;
goto done;
@@ -687,7 +688,8 @@
#endif
if (try_atm_clip_ops()) {
error = atm_clip_ops->atm_init_atmarp(vcc);
- __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
+ if (atm_clip_ops->owner)
+ __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
if (!error)
sock->state = SS_CONNECTED;
ret_val = error;
@@ -701,7 +703,8 @@
}
if (try_atm_clip_ops()) {
ret_val = atm_clip_ops->clip_mkip(vcc, arg);
- __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
+ if (atm_clip_ops->owner)
+ __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
} else
ret_val = -ENOSYS;
goto done;
@@ -712,7 +715,8 @@
}
if (try_atm_clip_ops()) {
ret_val = atm_clip_ops->clip_setentry(vcc, arg);
- __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
+ if (atm_clip_ops->owner)
+ __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
} else
ret_val = -ENOSYS;
goto done;
@@ -723,7 +727,8 @@
}
if (try_atm_clip_ops()) {
ret_val = atm_clip_ops->clip_encap(vcc, arg);
- __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
+ if (atm_clip_ops->owner)
+ __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
} else
ret_val = -ENOSYS;
goto done;
--- linux-2.4.22/net/atm/proc.c.000 Tue Aug 26 13:30:23 2003
+++ linux-2.4.22/net/atm/proc.c Tue Aug 26 13:31:58 2003
@@ -358,7 +358,7 @@
spin_unlock_irqrestore(&dev->lock, flags);
spin_unlock(&atm_dev_lock);
#if defined(CONFIG_ATM_CLIP) || defined(CONFIG_ATM_CLIP_MODULE)
- if (clip_info)
+ if (clip_info && atm_clip_ops->owner)
__MOD_DEC_USE_COUNT(atm_clip_ops->owner);
#endif
return strlen(buf);
@@ -367,8 +367,8 @@
}
spin_unlock(&atm_dev_lock);
#if defined(CONFIG_ATM_CLIP) || defined(CONFIG_ATM_CLIP_MODULE)
- if (clip_info)
- __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
+ if (clip_info && atm_clip_ops->owner)
+ __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
#endif
return 0;
}
@@ -458,7 +458,8 @@
if (--count) continue;
atmarp_info(n->dev,entry,NULL,buf);
read_unlock_bh(&clip_tbl_hook->lock);
- __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
+ if (atm_clip_ops->owner)
+ __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
return strlen(buf);
}
for (vcc = entry->vccs; vcc;
@@ -466,12 +467,14 @@
if (--count) continue;
atmarp_info(n->dev,entry,vcc,buf);
read_unlock_bh(&clip_tbl_hook->lock);
- __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
+ if (atm_clip_ops->owner)
+ __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
return strlen(buf);
}
}
read_unlock_bh(&clip_tbl_hook->lock);
- __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
+ if (atm_clip_ops->owner)
+ __MOD_DEC_USE_COUNT(atm_clip_ops->owner);
return 0;
}
#endif