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Subject2.4.6 + MediaGX = kernel panic
Date
I have Casio Fiva 102 which is a mini notebook based on Cyrix MediaGX
(clone) chipset. 2.4.5 runs like a charm, but 2.4.6, immediately
after starting, displays this:

zone(0): 4096 pages.
zone(1): 11648 pages.
zone(2): 0 pages.
Kernel command line: BOOT_IMAGE=linux ro root=304 sb=0x220,5,1,5
Initializing CPU#0
Working around Cyrix MediaGX virtual DMA bugs
Console: colour VGA+ 80x25
kernel BUG at softirq.c:206!

== The rest of the output is passed through ksymoops:

ksymoops 2.3.3 on i586 2.4.5. Options used
-v /usr/src/linux/vmlinux (specified)
-K (specified)
-L (specified)
-O (specified)
-m /usr/src/linux/System.map (default)

invalid operand: 0000
CPU: 0
EIP: 0010:[<c0113f0e>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010082
eax: 0000001d ebx: c0253b20 ecx: 00000001 edx: c01fce68
esi: c0253b20 edi: 00000001 ebp: 00000000 esp: c020befc
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 0, stackpage=c020b000)
Stack: c01d1caa c01d1d26 000000ce 00000009 c023d5c0 c023d5c0 c020bf40 c0113d1f
c023d5c0 00000000 c023b900 00000000 c010807d c0201e60 c020bf9f 000002d4
c01fca40 000002d4 c0106d80 c0201e60 00000000 000002d4 c020bf9f 000002d4
Call trace: [<c0113d1f>] [<c010807d>] [<c0106d80>] [<c011092f>] [<c0105000>]
Code: 0f 0b 83 c4 0c 8b 43 08 85 c0 75 18 fb 8b 43 10 50 8b 43 0c

>>EIP; c0113f0e <tasklet_hi_action+6a/b4> <=====
Trace; c0113d1f <do_softirq+3f/68>
Trace; c010807d <do_IRQ+9d/b0>
Trace; c0106d80 <ret_from_intr+0/7>
Trace; c011092f <register_console+22b/234>
Trace; c0105000 <_stext+0/0>
Code; c0113f0e <tasklet_hi_action+6a/b4>
0000000000000000 <_EIP>:
Code; c0113f0e <tasklet_hi_action+6a/b4> <=====
0: 0f 0b ud2a <=====
Code; c0113f10 <tasklet_hi_action+6c/b4>
2: 83 c4 0c add $0xc,%esp
Code; c0113f13 <tasklet_hi_action+6f/b4>
5: 8b 43 08 mov 0x8(%ebx),%eax
Code; c0113f16 <tasklet_hi_action+72/b4>
8: 85 c0 test %eax,%eax
Code; c0113f18 <tasklet_hi_action+74/b4>
a: 75 18 jne 24 <_EIP+0x24> c0113f32 <tasklet_hi_action+8e/b4>
Code; c0113f1a <tasklet_hi_action+76/b4>
c: fb sti
Code; c0113f1b <tasklet_hi_action+77/b4>
d: 8b 43 10 mov 0x10(%ebx),%eax
Code; c0113f1e <tasklet_hi_action+7a/b4>
10: 50 push %eax
Code; c0113f1f <tasklet_hi_action+7b/b4>
11: 8b 43 0c mov 0xc(%ebx),%eax

Kernel panic: Aiee, killing interrupt handler!

Tell me if I can provide more information

Eugene
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