Kernel panic, 2.0.36, when accessing serial device

Pontus Lidman (pontus@mathcore.com)
Tue, 21 Sep 1999 13:03:44 +0200

The kernel panic below happens when I access the serial devices. In this
instance I tried to start the "faxgetty" program on my serial port, but I
get panics when doing e.g. "echo atz >/dev/ttyS0" too.

My kernel is 2.0.36, and this is the serial setup:

# setserial -g /dev/ttyS0 /dev/ttyS1
/dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4
/dev/ttyS1, UART: 16550A, Port: 0x02f8, IRQ: 3

The system is Debian 2.1 (slink).

What can I do?

Please CC me as I'm not subscribed to this list (I follow it via 'kernel
traffic').

Regards, Pontus

--- kernel panic output

Unable to handle kernel paging request at virtual address c8038d98
current->tss.cr3 = 05337000, %cr3 = 05337000
*pde = 0009e067
*pte = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<08038d98>]
EFLAGS: 00010202
eax: 08038d98 ebx: 00000010 ecx: 00560234 edx: 00560200
esi: fffffff0 edi: 00000010 ebp: 001e7f10 esp: 04318fa4
ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
Process faxgetty (pid: 481, process nr: 69, stackpage=04318000)
Stack: 00118603 0528f414 0000000e 00000000 bffff914 0010a853 00000007 080a8818
0000000e 0000000e 00000000 bffff914 0000000e 4000002b 4000002b 4002002b
0000002b 00000004 4014ba94 00000023 00000246 bffff8f4 0000002b
Call Trace: [<00118603>] [<0010a853>] [<080a8818>]
Code: <1>Unable to handle kernel paging request at virtual
address c8038d98
current->tss.cr3 = 05337000, %cr3 = 05337000
*pde = 0009e067
*pte = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<0010adbc>]
EFLAGS: 00010212
eax: 00000010 ebx: 0000002b ecx: 08038d98 edx: 07488018
esi: 00000000 edi: 04319000 ebp: 04318f68 esp: 04318f0c
ds: 0018 es: 0018 fs: 0010 gs: 002b ss: 0018
Process faxgetty (pid: 481, process nr: 69, stackpage=04318000)
Stack: 001a002b 00000000 00038000 04318f68 0528f414 087f0000 08800000 08000000
05280018 00111bde 001ab7fd 04318f68 00000000 00111910 fffffff0 00000010
001e7f10 0017dc71 04fd0598 04bd9220 0010aa24 04318f68 00000000
00000010
Call Trace: [<001a002b>] [<087f0000>] [<08800000>] [<08000000>] [<00111bde>]
[<00111910>] [<0017dc71>]
[<0010aa24>] [<08038d98>] [<080a0018>] [<08038d98>] [<00118603>]
[<0010a853>] [<080a8818>]
Code: 64 8a 04 0e 0f a1 88 c2 81 e2 ff 00 00 00 89 54 24 10 52 68
Aiee, killing interrupt handler

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