OOPS in 2.4.6's drivers/scsi/in2000.c

OOPS in 2.4.6's drivers/scsi/in2000.c

[Andres Salomon]

[-- Attachment #1: Type: text/plain, Size: 630 bytes --]

2.4.6, oops run through ksymoops is attached.  This was a kernel w/ all
scsi drivers compiled in statically (and modules disabled), hence there
were no actual in2000 cards in the machine.  If more info is needed, let
me know.

-- 
"... being a Linux user is sort of like living in a house inhabited
by a large family of carpenters and architects. Every morning when
you wake up, the house is a little different. Maybe there is a new
turret, or some walls have moved. Or perhaps someone has temporarily
removed the floor under your bed." - Unix for Dummies, 2nd Edition
        -- found in the .sig of Rob Riggs, rriggs@tesser.com

[-- Attachment #2: oops.ksym --]
[-- Type: text/plain, Size: 2136 bytes --]

ksymoops 2.4.1 on i686 2.4.6.  Options used
     -v linux/vmlinux (specified)
     -K (specified)
     -l /proc/modules (default)
     -o /lib/modules/2.4.6/ (default)
     -m linux/System.map (specified)

No modules in ksyms, skipping objects
No ksyms, skipping lsmod
Unable to handle kernel paging request at virtual address 000c8010
c034cc11
*pde = 00000000
Oops: 0000
CPU:    0
EIP:    0010:[<c034cc11>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010246
eax: 00000000   ebx: 000c8000   ecx: 00000005   edx: c035a210
esi: 00000000   edu: 00000000   ebp: 00000000   esp: c15f9efc
ds: 0018   es: 0018   ss: 0018
Process swapper (pid: 1, stackpage=c15f9000)
Stack: c037a03c 00000000 00000000 0008e000 c01891c1 00000000 c02ef820 0000002b
       00000282 00000000 c037e52e c037e503 c02ea484 00000001 00000282 c15f9f54
       c15f9f58 c15f9f5c c037a038 c0302040 00000000 c037a038 c0339fd8 00000000
Call Trace: [<c01891c1>] [<c01a2b8a>] [<c01a255f>] [<c01598e5>] [<c01a2da6>] [<c0105013>] [<c0105434>]
Code: 8b 4b 10 89 44 24 34 81 f9 4e 4f 56 41 74 15 8b 43 30 8d 55

>>EIP; c034cc11 <in2000_detect+ad/62c>   <=====
Trace; c01891c1 <vt_console_print+2c1/2d8>
Trace; c01a2b8a <scsi_unregister_host+3ae/41c>
Trace; c01a255f <scsi_register_host+57/2d4>
Trace; c01598e5 <devfs_mk_dir+4d/e8>
Trace; c01a2da6 <scsi_register_module+2a/4c>
Trace; c0105013 <init+7/114>
Trace; c0105434 <kernel_thread+28/38>
Code;  c034cc11 <in2000_detect+ad/62c>
00000000 <_EIP>:
Code;  c034cc11 <in2000_detect+ad/62c>   <=====
   0:   8b 4b 10                  mov    0x10(%ebx),%ecx   <=====
Code;  c034cc14 <in2000_detect+b0/62c>
   3:   89 44 24 34               mov    %eax,0x34(%esp,1)
Code;  c034cc18 <in2000_detect+b4/62c>
   7:   81 f9 4e 4f 56 41         cmp    $0x41564f4e,%ecx
Code;  c034cc1e <in2000_detect+ba/62c>
   d:   74 15                     je     24 <_EIP+0x24> c034cc35 <in2000_detect+d1/62c>
Code;  c034cc20 <in2000_detect+bc/62c>
   f:   8b 43 30                  mov    0x30(%ebx),%eax
Code;  c034cc23 <in2000_detect+bf/62c>
  12:   8d 55 00                  lea    0x0(%ebp),%edx

Kernel panic: Attempted to kill init!

[patch] Re: OOPS in 2.4.6's drivers/scsi/in2000.c

[Francois Romieu]

The driver does readX instead of isa_readX on isa addresses.

Alan, please apply and forward. 

--- linux-2.4.7-ac9.orig/drivers/scsi/in2000.c	Thu Aug  2 09:50:33 2001
+++ linux-2.4.7-ac9/drivers/scsi/in2000.c	Thu Aug  9 13:06:25 2001
@@ -1909,10 +1909,10 @@ char *cp;
  * special macros declared in 'asm/io.h'. We use readb() and readl()
  * when reading from the card's BIOS area in in2000_detect().
  */
-static const unsigned int *bios_tab[] in2000__INITDATA = {
-   (unsigned int *)0xc8000,
-   (unsigned int *)0xd0000,
-   (unsigned int *)0xd8000,
+static u32 bios_tab[] in2000__INITDATA = {
+   0xc8000,
+   0xd0000,
+   0xd8000,
    0
    };
 
@@ -1973,13 +1973,13 @@ char buf[32];
  * for the obvious ID strings. We look for the 2 most common ones and
  * hope that they cover all the cases...
  */
-      else if (readl(bios_tab[bios]+0x04) == 0x41564f4e ||
-               readl(bios_tab[bios]+0x0c) == 0x61776c41) {
+      else if (isa_readl(bios_tab[bios]+0x10) == 0x41564f4e ||
+               isa_readl(bios_tab[bios]+0x30) == 0x61776c41) {
          printk("Found IN2000 BIOS at 0x%x ",(unsigned int)bios_tab[bios]);
 
 /* Read the switch image that's mapped into EPROM space */
 
-         switches = ~((readb(bios_tab[bios]+0x08) & 0xff));
+         switches = ~((isa_readb(bios_tab[bios]+0x20) & 0xff));
 
 /* Find out where the IO space is */
 
@@ -2073,7 +2073,7 @@ char buf[32];
 
 /* Older BIOS's had a 'sync on/off' switch - use its setting */
 
-      if (readl(bios_tab[bios]+0x04) == 0x41564f4e && (switches & SW_SYNC_DOS5))
+      if (isa_readl(bios_tab[bios]+0x10) == 0x41564f4e && (switches & SW_SYNC_DOS5))
          hostdata->sync_off = 0x00;    /* sync defaults to on */
       else
          hostdata->sync_off = 0xff;    /* sync defaults to off */
-- 
Ueimor