Hi,

the ide-floppy driver (0.98a) produces oops + hang (easy
reproducable) with 2.5.2 (and onwards). doesn't matter if module or
in-kernel. Here's the info when 'using' as module:


taco@brood:~$ cat /proc/version 
Linux version 2.5.3-K0 (root@brood) (gcc version 2.95.4 20011002 (Debian prerelease)) #1 Fri Feb 1 12:36:54 CET 2002

here's the output from ksymoops:

ksymoops 2.4.3 on i686 2.5.3-K0.  Options used
     -v vmlinux (specified)
     -k /proc/ksyms (specified)
     -l /proc/modules (specified)
     -o /lib/modules/2.5.3-K0/ (specified)
     -m /boot/System.map-2.5.3-K0 (specified)

invalid operand: 0000
CPU:    0
EIP:    0010:[<c01d5f10>]    Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010002
eax: c3f73d24   ebx: c0338ec0   ecx: c0338ec0   edx: c556701c
esi: c7fcd300   edi: 00000000   ebp: 00000002   esp: c02d3e80
ds: 0018   es: 0018   ss: 0018
Process swapper (pid: 0, stackpage=c02d3000)
Stack: 00000202 c0338ec0 c0338ec0 c01e8242 c0338ec0 c556701c c0338ec0
c556701c
       c556600c c0338ec0 c0338ec0 c02d3ec4 c7fef380 00000000 00000000
c02d3ecc
       c02d3ecc 00000000 00000000 c02d3ecc c02d3ecc c8a92358 c0338ec0
c556701c
Call Trace: [<c01e8242>] [<c8a92358>] [<c8a92572>] [<c8a92636>]
[<c01e807d>]
   [<c8a92580>] [<c0109a4f>] [<c0109bce>] [<c0106c40>] [<c0106c40>]
[<c0106c40>]
   [<c0106c04>] [<c0121f65>] [<c0106cc5>] [<c0105000>] [<c0105019>]
Code: 0f 0b 8b 42 1c a8 04 75 06 83 e0 01 8b 3c 86 89 7a 08 8b 01

>>EIP; c01d5f10 <elevator_linus_add_request+20/60>   <=====
Trace; c01e8242 <ide_do_drive_cmd+d2/110>
Trace; c8a92358 <END_OF_CODE+163ea2/????>
Trace; c8a92572 <END_OF_CODE+1640bc/????>
Trace; c8a92636 <END_OF_CODE+164180/????>
Trace; c01e807c <ide_intr+bc/120>
Trace; c8a92580 <END_OF_CODE+1640ca/????>
Trace; c0109a4e <handle_IRQ_event+2e/60>
Trace; c0109bce <do_IRQ+6e/b0>
Trace; c0106c40 <default_idle+0/30>
Trace; c0106c40 <default_idle+0/30>
Trace; c0106c40 <default_idle+0/30>
Trace; c0106c04 <gunzip+4d4/4f0>
Trace; c0121f64 <check_pgt_cache+4/20>
Trace; c0106cc4 <cpu_idle+34/40>
Trace; c0105000 <_stext+0/0>
Trace; c0105018 <rest_init+18/20>
Code;  c01d5f10 <elevator_linus_add_request+20/60>
00000000 <_EIP>:
Code;  c01d5f10 <elevator_linus_add_request+20/60>   <=====
   0:   0f 0b                     ud2a      <=====
Code;  c01d5f12 <elevator_linus_add_request+22/60>
   2:   8b 42 1c                  mov    0x1c(%edx),%eax
Code;  c01d5f14 <elevator_linus_add_request+24/60>
   5:   a8 04                     test   $0x4,%al
Code;  c01d5f16 <elevator_linus_add_request+26/60>
   7:   75 06                     jne    f <_EIP+0xf> c01d5f1e
<elevator_linus_add_request+2e/60>
Code;  c01d5f18 <elevator_linus_add_request+28/60>
   9:   83 e0 01                  and    $0x1,%eax
Code;  c01d5f1c <elevator_linus_add_request+2c/60>
   c:   8b 3c 86                  mov    (%esi,%eax,4),%edi
Code;  c01d5f1e <elevator_linus_add_request+2e/60>
   f:   89 7a 08                  mov    %edi,0x8(%edx)
Code;  c01d5f22 <elevator_linus_add_request+32/60>
  12:   8b 01                     mov    (%ecx),%eax

 <0>Kernel panic: Aiee, killing interrupt handler!


here's the oops itself, if usefull ;))
(copied by hand...)

brood:~# insmod ide-floppy
Using /lib/modules/2.5.3-K0/kernel/drivers/ide/ide-floppy.o
ide-floppy driver 0.98a
invalid operand: 0000
CPU:    0
EIP:    0010:[<c01d5f10>]    Not tainted
EFLAGS: 00010002
eax: c3f73d24   ebx: c0338ec0   ecx: c0338ec0   edx: c556701c
esi: c7fcd300   edi: 00000000   ebp: 00000002   esp: c02d3e80
ds: 0018   es: 0018   ss: 0018
Process swapper (pid: 0, stackpage=c02d3000)
Stack: 00000202 c0338ec0 c0338ec0 c01e8242 c0338ec0 c556701c c0338ec0 c556701c
       c556600c c0338ec0 c0338ec0 c02d3ec4 c7fef380 00000000 00000000 c02d3ecc
       c02d3ecc 00000000 00000000 c02d3ecc c02d3ecc c8a92358 c0338ec0
c556701c
Call Trace: [<c01e8242>] [<c8a92358>] [<c8a92572>] [<c8a92636>] [<c01e807d>]
   [<c8a92580>] [<c0109a4f>] [<c0109bce>] [<c0106c40>] [<c0106c40>] [<c0106c40>]
   [<c0106c04>] [<c0121f65>] [<c0106cc5>] [<c0105000>] [<c0105019>]

Code: 0f 0b 8b 42 1c a8 04 75 06 83 e0 01 8b 3c 86 89 7a 08 8b 01
 <0>Kernel panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing




sh ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.

Linux brood 2.5.3-K0 #1 Fri Feb 1 12:36:54 CET 2002 i686 unknown
 
Gnu C                  2.95.4
Gnu make               3.79.1
util-linux             2.11n
mount                  2.11n
modutils               2.4.13
e2fsprogs              1.25
reiserfsprogs          3.x.0j
Linux C Library        2.2.5
Dynamic linker (ldd)   2.2.5
Procps                 2.0.7
Net-tools              1.60
Console-tools          0.2.3
Sh-utils               2.0.11
Modules Loaded         sd_mod usb-storage scsi_mod usb-ohci usbcore
ip_nat_ftp iptable_nat ne 8390 crc32 3c59x



cat /proc/cpuinfo 
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 6
model           : 1
model name      : AMD-K7(tm) Processor
stepping        : 2
cpu MHz         : 499.043
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov
pat mmx syscall mmxext 3dnowext 3dnow
bogomips        : 996.14


cat /proc/modules 
sd_mod                  9400   0 (unused)
usb-storage            20476   0 (unused)
scsi_mod               66808   1 [sd_mod usb-storage]
usb-ohci               18016   0 (unused)
usbcore                55020   1 [usb-storage usb-ohci]
ip_nat_ftp              3104   0 (unused)
iptable_nat            14644   6 [ip_nat_ftp]
ne                      6272   1
8390                    5872   0 [ne]
crc32                    888   1 [8390]
3c59x                  25032   1



cat /proc/ioports
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
0340-035f : eth1
0376-0376 : ide1
03bc-03be : parport0
03c0-03df : vga+
03f6-03f6 : ide0
0cf8-0cff : PCI conf1
e000-e003 : Advanced Micro Devices [AMD] AMD-751 [Irongate] System
Controller
e400-e47f : 3Com Corporation 3c900B-Combo [Etherlink XL Combo]
  e400-e47f : 00:0a.0
e800-e83f : Ensoniq ES1371 [AudioPCI-97]
  e800-e83f : es1371
f000-f00f : Advanced Micro Devices [AMD] AMD-756 [Viper] IDE
  f000-f007 : ide0
  f008-f00f : ide1


cat /proc/iomem 
00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000f0000-000fffff : System ROM
00100000-07ffffff : System RAM
  00100000-0026d9bb : Kernel code
  0026d9bc-002d049f : Kernel data
d8000000-d9ffffff : Advanced Micro Devices [AMD] AMD-751 [Irongate] System
Controller
da000000-dbffffff : PCI Bus #01
  da000000-daffffff : nVidia Corporation Vanta [NV6]
dc000000-ddffffff : PCI Bus #01
  dc000000-ddffffff : nVidia Corporation Vanta [NV6]
df000000-df000fff : Advanced Micro Devices [AMD] AMD-756 [Viper] USB
  df000000-df000fff : usb-ohci
df001000-df00107f : 3Com Corporation 3c900B-Combo [Etherlink XL Combo]
df002000-df002fff : Advanced Micro Devices [AMD] AMD-751 [Irongate] System
Controller
ffff0000-ffffffff : reserved



if there's any more info you need to figure this one out or patches for me
to test, just let me know...

Cheers,
Taco.


-
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/