The recent changes in the serial driver have broken PCMCIA modem support
for me, although ordinary serial support itself works great. I'll look at
this more tonight but figured I'd send this now.
Since the driver changed names, I symlinked 8250_cs to the old
name, serial_cs.
cardmgr[509]: initializing socket 1
cardmgr[509]: socket 1: 3Com 3CCM156 56K Global Modem
cs: memory probe 0xa0000000-0xa0ffffff: clean.
cardmgr[509]: executing: 'modprobe serial_cs'
Serial: 8250/16550 driver $Revision: 1.84 $ IRQ sharing enabled
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
serial_cs: register_serial() at 0x02f8, irq 3 failed
cardmgr[509]:
get dev info on socket 1 failed: Resource temporarily unavailable
[Note: io = 0x02f8, irq 3 is where it lived happily in 2.5.27.]
[I eject the card at this point...]
cardmgr[509]: shutting down socket 1
cardmgr[509]: executing: 'modprobe -r serial_cs'
Removing wrong port: 2404b60f != ccaee01c
And now the subsequent oops:
Unable to handle kernel NULL pointer dereference at virtual address
0000010c
ccae84fb
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<ccae84fb>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010202
eax: 00000104 ebx: ccae9e04 ecx: cbadb060 edx: c021c068
esi: cb28d7e4 edi: ccaedec0 ebp: c8526000 esp: c8cfbf68
ds: 0018 es: 0018 ss: 0018
Stack: ccae89a8 ccaedec0 cb28d7e4 ccaee0b8 00000002 00000000 ccaecd12
ccaedec0
ccaee01c ccaeb000 c8526000 c0115b2e ccaeb000 c8526000 00000000
c0115019
ccaeb000 00000000 c8cfa000 00000000 00000000 bfffebe8 c0106cff
080670b0
Call Trace: [<ccae89a8>] [<ccaedec0>] [<ccaee0b8>] [<ccaecd12>]
[<ccaedec0>]
[<ccaee01c>] [<c0115b2e>] [<c0115019>] [<c0106cff>]
Code: 8b 40 08 85 c0 74 0e 89 44 24 04 e9 15 82 6a f3 90 8d 74 26
>>EIP; ccae84fb <[core]__uart_hangup_port+b/30> <=====
Trace; ccae89a8 <[core]uart_remove_one_port+58/90>
Trace; ccaedec0 <.data.end+40a9/????>
Trace; ccaee0b8 <.data.end+42a1/????>
Trace; ccaecd12 <.data.end+2efb/????>
Trace; ccaedec0 <.data.end+40a9/????>
Trace; ccaee01c <.data.end+4205/????>
Trace; c0115b2e <free_module+1e/b0>
Trace; c0115019 <sys_delete_module+f9/1d0>
Trace; c0106cff <syscall_call+7/b>
Code; ccae84fb <[core]__uart_hangup_port+b/30>
00000000 <_EIP>:
Code; ccae84fb <[core]__uart_hangup_port+b/30> <=====
0: 8b 40 08 mov 0x8(%eax),%eax <=====
Code; ccae84fe <[core]__uart_hangup_port+e/30>
3: 85 c0 test %eax,%eax
Code; ccae8500 <[core]__uart_hangup_port+10/30>
5: 74 0e je 15 <_EIP+0x15> ccae8510
<[core]__uart_hangup_port+20/30>
Code; ccae8502 <[core]__uart_hangup_port+12/30>
7: 89 44 24 04 mov %eax,0x4(%esp,1)
Code; ccae8506 <[core]__uart_hangup_port+16/30>
b: e9 15 82 6a f3 jmp f36a8225 <_EIP+0xf36a8225>
c0190720 <tty_vhangup+0/10>
Code; ccae850b <[core]__uart_hangup_port+1b/30>
10: 90 nop
Code; ccae850c <[core]__uart_hangup_port+1c/30>
11: 8d 74 26 00 lea 0x0(%esi,1),%esi
Craig Kulesa
Steward Obs.
Univ. of Arizona
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This archive was generated by hypermail 2b29 : Tue Jul 30 2002 - 14:00:19 EST