linux-kernel - Re: [PATCH] Allocate pnp resources dynamically via krealloc - working version

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Date:	Mon, 28 Jan 2008 19:07:05 +0100
From:	Rene Herman <rene.herman@...access.nl>
To:	trenn@...e.de
CC:	Pekka Enberg <penberg@...helsinki.fi>, linux-acpi@...r.kernel.org,
	Len Brown <lenb@...nel.org>,
	Bjorn Helgaas <bjorn.helgaas@...com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Jean Delvare <khali@...ux-fr.org>,
	Jaroslav Kysela <perex@...ex.cz>
Subject: Re: [PATCH] Allocate pnp resources dynamically via krealloc	-	working
 version - Addon patch 1

On 28-01-08 17:04, Thomas Renninger wrote:

> Can you try these two "on top" patches pls.

Thought I could, but my machine begs to differ...

===
pnp: the driver 'cs4236_isapnp' has been registered
cs4236_isapnp 01:01.00: driver attached
cs4236_isapnp 01:01.02: driver attached
cs4236_isapnp 01:01.03: driver attached
BUG: unable to handle kernel NULL pointer dereference at virtual address 
0000000f
printing eip: c10e5136 *pde = 00000000
Oops: 0000 [#1] PREEMPT
Modules linked in: snd_cs4236 snd_opl3_lib snd_hwdep snd_cs4236_lib 
snd_mpu401_uart snd_rawmidi snd_seq_device snd_cs4231_lib snd_pcm snd_timer 
snd_page_alloc snd soundcore nfsd lockd nfs_acl sunrpc exportfs

Pid: 1370, comm: modprobe Not tainted (2.6.24-local #5)
EIP: 0060:[<c10e5136>] EFLAGS: 00010246 CPU: 0
EIP is at pnp_assign_port+0x1d/0xd5
EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000001
ESI: ef8fe100 EDI: ef8f5800 EBP: 00000000 ESP: ed3b4e08
  DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
Process modprobe (pid: 1370, ti=ed3b4000 task=ed35c000 task.ti=ed3b4000)
Stack: ed3b4e34 c108ac94 ed3b4e34 ed3c1b10 00000000 efa4e360 c108b88b ef8fe100
        00000000 ef8f5800 ef82ee40 c10e5360 00000001 ef8f5964 00000000 00000000
        00000000 00000000 00000000 ef805ea0 ef8f5800 ef863c80 00000001 ed373400
Call Trace:
  [<c108ac94>] sysfs_addrm_start+0x36/0x81
  [<c108b88b>] sysfs_create_link+0xd0/0x111
  [<c10e5360>] pnp_assign_resources+0x172/0x23a
  [<c10e548f>] pnp_auto_config_dev+0x67/0xa6
  [<c10e373a>] pnp_request_card_device+0x9b/0xbe
  [<c10e54e1>] pnp_activate_dev+0x13/0x3a
  [<f0a4b559>] snd_cs423x_pnpc_detect+0xe4/0x35f [snd_cs4236]
  [<c10e330d>] pnp_alloc+0xe/0x25
  [<c10e3652>] card_probe+0xba/0x107
  [<c10e3b75>] pnp_register_card_driver+0xa3/0xb3
  [<f08de02f>] alsa_card_cs423x_init+0x2f/0x4f [snd_cs4236]
  [<c103258a>] sys_init_module+0x1379/0x149b
  [<c104773a>] unmap_region+0xe5/0x100
  [<c1003d62>] syscall_call+0x7/0xb
  =======================
Code: ba 01 00 00 00 83 c4 1c 89 d0 5b 5e 5f c3 55 89 cd 57 89 c7 56 89 d6 
ba 01 00 00 00 53 6b d9 1c 83 ec 1c 89 d8 03 87 64 01 00 00 <f6> 40 0f 40 0f 
84 a4 00 00 00 8b 00 8b 97 64 01 00 00 0f b6 4e
EIP: [<c10e5136>] pnp_assign_port+0x1d/0xd5 SS:ESP 0068:ed3b4e08
---[ end trace d756fac577a9260d ]---

Rene.
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