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Message-ID: <a44ae5cd0609282131t2841a7b7ued9ffc22ac470687@mail.gmail.com>
Date: Thu, 28 Sep 2006 21:31:19 -0700
From: "Miles Lane" <miles.lane@gmail.com>
To: "Andrew Morton" <akpm@osdl.org>
Subject: Re: 2.6.18-mm2 -- EIP: [<c11a962e>] klist_node_init+0x2b/0x3a SS:ESP 0068:f63a5f80
Cc: LKML <linux-kernel@vger.kernel.org>,
       "James P. Ketrenos" <ipw2100-admin@linux.intel.com>, jgarzik@pobox.com
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On 9/28/06, Andrew Morton <akpm@osdl.org> wrote:
> On Thu, 28 Sep 2006 19:13:23 -0700
> "Miles Lane" <miles.lane@gmail.com> wrote:
>
> > eth1: RealTek RTL8139 at 0xf9076800, 00:c0:9f:95:18:1b, IRQ 19
> > eth1:  Identified 8139 chip type 'RTL-8100B/8139D'
> > BUG: unable to handle kernel NULL pointer dereference at virtual
> > address 000000d0
> >  printing eip:
> > c11a962e
> > *pde = 00000000
> > Oops: 0000 [#1]
> > PREEMPT
> > last sysfs file: /class/firmware/0000:01:06.0/loading
>
> So you got to the stage of loading firmware.
>
> > Modules linked in: shpchp pci_hotplug intel_agp i2c_i801 agpgart
> > snd_intel8x0 i2c_core snd_intel8x0m snd_ac97_codec snd_ac97_bus
> > snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device
> > snd_pcm_oss snd_mixer_oss ata_generic ata_piix libata 8139too sdhci
> > scsi_mod snd_pcm snd_timer psmouse snd soundcore snd_page_alloc 8139cp
> > mii yenta_socket rsrc_nonstatic pcmcia_core ohci1394 serio_raw ipw2200
> > ieee1394 ide_cd cdrom rtc unix ehci_hcd ohci_hcd uhci_hcd usbcore ext3
> > jbd mbcache
> > CPU:    0
> > EIP:    0060:[<c11a962e>]    Not tainted VLI
> > EFLAGS: 00010296   (2.6.18-mm2 #8)
> > EIP is at klist_node_init+0x2b/0x3a
> > eax: dff16b08   ebx: 000000a0   ecx: c102ebd7   edx: f63a5f44
> > esi: dff16afc   edi: f910e214   ebp: f63a5f88   esp: f63a5f80
> > ds: 007b   es: 007b   ss: 0068
> > Process probe-0000:01:0 (pid: 1697, ti=f63a4000 task=f639c030 task.ti=f63a4000)
> > Stack: 000000a0 dff16afc f63a5f98 c11a964f dff16a80 dff16afc f63a5fac c1124295
> >        00000000 dff16a80 f910e214 f63a5fc4 c1124338 f5c17e80 f5c17e80 f633bd90
> >        c11242f0 f63a5fe0 c102a834 ffffffff ffffffff c102a784 00000000 00000000
> > Call Trace:
> >  [<c11a964f>] klist_add_tail+0x12/0x38
> >  [<c1124295>] device_bind_driver+0x45/0xa0
> >  [<c1124338>] really_probe+0x48/0xb3
> >  [<c102a834>] kthread+0xb0/0xdc
> >  [<c1003abb>] kernel_thread_helper+0x7/0x10
> > DWARF2 unwinder stuck at kernel_thread_helper+0x7/0x10
> >
> > Leftover inexact backtrace:
> >
> >  [<c1003f02>] show_trace_log_lvl+0x12/0x25
> >  [<c1003fa1>] show_stack_log_lvl+0x8c/0x97
> >  [<c100412c>] show_registers+0x180/0x214
> >  [<c1004355>] die+0x195/0x2b0
> >  [<c10148a9>] do_page_fault+0x419/0x4e4
> >  [<c11ac329>] error_code+0x39/0x40
> >  [<c11a964f>] klist_add_tail+0x12/0x38
> >  [<c1124295>] device_bind_driver+0x45/0xa0
> >  [<c1124338>] really_probe+0x48/0xb3
> >  [<c102a834>] kthread+0xb0/0xdc
> >  [<c1003abb>] kernel_thread_helper+0x7/0x10
> >  =======================
> > Code: 55 89 e5 56 53 89 c3 89 d6 8d 42 04 89 42 04 89 40 04 c7 42 10
> > 00 00 00 00 8d 42 14 e8 f2 14 e8 ff 8d 46 0c e8 80 3d f1 ff 89 1e <8b>
> > 53 30 85 d2 74 04 89 f0 ff d2 5b 5e 5d c3 55 89 e5 56 53 89
> > EIP: [<c11a962e>] klist_node_init+0x2b/0x3a SS:ESP 0068:f63a5f80
> >  <6>ipw2200: Detected geography ZZM (11 802.11bg channels, 0 802.11a channels)
>
> Does setting CONFIG_PCI_MULTITHREAD_PROBE=n fix it?

Yes and no.  The BUG no longer occurs, but either ipw2200 or
NetworkManager is still not working.  I am running Fedora development
(rawhide).  For some reason, NM still cannot establish a connection
with this kernel build (this failed with 2.6.18-mm2 previously, but I
thought it was related to the BUG).  "iwlist scan" can corrently
detect my access point.  Also, I can use iwconfig and dhclient to
establish a working connection.  NM fails with this output in the
message log (I'll try getting a more detailed debug log out of NM):

Sep 28 21:12:38 hogwarts NetworkManager: <information>  Activation
(eth0) started...
Sep 28 21:12:38 hogwarts NetworkManager: <information>  Activation
(eth0) Stage 1 of 5 (Device Prepare) scheduled...
Sep 28 21:12:38 hogwarts NetworkManager: <information>  Activation
(eth0) Stage 1 of 5 (Device Prepare) started...
Sep 28 21:12:38 hogwarts NetworkManager: <information>  Activation
(eth0) Stage 2 of 5 (Device Configure) scheduled...
Sep 28 21:12:38 hogwarts NetworkManager: <information>  Activation
(eth0) Stage 1 of 5 (Device Prepare) complete.
Sep 28 21:12:38 hogwarts NetworkManager: <information>  Activation
(eth0) Stage 2 of 5 (Device Configure) starting...
Sep 28 21:12:38 hogwarts NetworkManager: <information>  Activation
(eth0/wireless): access point 'linksys' is unencrypted, no key needed.
Sep 28 21:12:38 hogwarts NetworkManager: <information>  SUP: sending
command 'INTERFACE_ADD eth0                wext
/var/run/wpa_supplicant '
Sep 28 21:12:38 hogwarts NetworkManager: <information>  SUP: response was 'OK'
Sep 28 21:12:38 hogwarts NetworkManager: <information>  SUP: sending
command 'AP_SCAN 1'
Sep 28 21:12:38 hogwarts NetworkManager: <information>  SUP: response was 'OK'
Sep 28 21:12:38 hogwarts NetworkManager: <information>  SUP: sending
command 'ADD_NETWORK'
Sep 28 21:12:38 hogwarts NetworkManager: <information>  SUP: response was '0'
Sep 28 21:12:38 hogwarts NetworkManager: <information>  SUP: sending
command 'SET_NETWORK 0 ssid 6c696e6b737973'
Sep 28 21:12:38 hogwarts NetworkManager: <information>  SUP: response was 'OK'
Sep 28 21:12:38 hogwarts NetworkManager: <information>  SUP: sending
command 'SET_NETWORK 0 key_mgmt NONE'
Sep 28 21:12:38 hogwarts NetworkManager: <information>  SUP: response was 'OK'
Sep 28 21:12:38 hogwarts NetworkManager: <information>  SUP: sending
command 'ENABLE_NETWORK 0'
Sep 28 21:12:38 hogwarts NetworkManager: <information>  SUP: response was 'OK'
Sep 28 21:12:38 hogwarts NetworkManager: <information>  Activation
(eth0) Stage 2 of 5 (Device Configure) complete.
Sep 28 21:12:44 hogwarts NetworkManager: <information>
wpa_supplicant(3372): Trying to associate with 00:14:bf:1e:31:9b
(SSID='linksys' freq=0 ssage repeated 13 times
Sep 28 21:12:49 hogwarts NetworkManager: <information>
wpa_supplicant(3372): :bf:1e:31:9b (SSID='linksys' freq=0 MHz)
Sep 28 21:12:49 hogwarts NetworkManager: <information>
wpa_supplicant(3372): Trying to associate with 00:14:bf:1e:31:9b
(SSID='linksys' freq=0 MHz)
Sep 28 21:12:49 hogwarts last message repeated 12 times
Sep 28 21:12:54 hogwarts NetworkManager: <information>
wpa_supplicant(3372): req=0 MHz)
Sep 28 21:12:54 hogwarts NetworkManager: <information>
wpa_supplicant(3372): Trying to associate with 00:14:bf:1e:31:9b
(SSID='linksys' freq=0 MHz)
Sep 28 21:12:54 hogwarts last message repeated 13 times
Sep 28 21:12:58 hogwarts NetworkManager: <information>  Activation
(eth0/wireless): association took too long (>20s), failing activation.
Sep 28 21:12:58 hogwarts NetworkManager: <information>  Activation
(eth0) failure scheduled...
Sep 28 21:12:58 hogwarts NetworkManager: <information>  Activation
(eth0) failed for access point (linksys)
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