Bug 8239

Summary: Firmware loading is broken
Product: Alternate Trees Reporter: Nicolas Mailhot (Nicolas.Mailhot)
Component: mmAssignee: Adrian Bunk (bunk)
Status: CLOSED CODE_FIX    
Severity: normal CC: akpm, arnaud.patard, bunk
Priority: P2    
Hardware: i386   
OS: Linux   
Kernel Version: 2.6.21-rc4-mm1 Subsystem:
Regression: --- Bisected commit-id:
Attachments: kernel config
/var/log/dmesg

Description Nicolas Mailhot 2007-03-20 13:25:43 UTC 
Most recent kernel where this bug did *NOT* occur: 2.6.21-rc3-mm2
Distribution: Fedora devel
Hardware Environment: AMD X2 + CK804 + E-MU 1820m + PVR150
Software Environment: N/A
Problem Description:

snd_emu10k & ivtv are not finding their firmware files anymore

Mar 20 20:28:35 rousalka kernel: ivtv:  ==================== START INIT IVTV
====================
Mar 20 20:28:35 rousalka kernel: ivtv:  version 1.0.0 (2.6.21-0.23.rc4.mm1.fc7
SMP mod_unload ) loading
Mar 20 20:28:35 rousalka kernel: sr0: scsi3-mmc drive: 40x/40x writer cd/rw
xa/form2 cdda tray
Mar 20 20:28:35 rousalka kernel: Uniform CD-ROM driver Revision: 3.20
Mar 20 20:28:35 rousalka kernel: eth0: forcedeth.c: subsystem: 01458:e000 bound
to 0000:00:0a.0
Mar 20 20:28:35 rousalka kernel: ACPI: PCI Interrupt 0000:01:08.2[B] -> Link
[APC2] -> GSI 17 (level, low) -> IRQ 17
Mar 20 20:28:35 rousalka kernel: fw_ohci: Added fw-ohci device 0000:01:08.2,
OHCI version 1.10
Mar 20 20:28:35 rousalka kernel: ACPI: PCI Interrupt Link [APC3] enabled at IRQ 18
Mar 20 20:28:35 rousalka kernel: ACPI: PCI Interrupt 0000:01:0a.0[A] -> Link
[APC3] -> GSI 18 (level, low) -> IRQ 18
Mar 20 20:28:35 rousalka kernel: fw_ohci: Added fw-ohci device 0000:01:0a.0,
OHCI version 1.10
Mar 20 20:28:35 rousalka kernel: ivtv0: Autodetected Hauppauge card (cx23416 based)
Mar 20 20:28:35 rousalka kernel: ACPI: PCI Interrupt Link [APC4] enabled at IRQ 19
Mar 20 20:28:35 rousalka kernel: ACPI: PCI Interrupt 0000:01:07.0[A] -> Link
[APC4] -> GSI 19 (level, low) -> IRQ 19
Mar 20 20:28:35 rousalka kernel: fw_core: created new fw device fw0 (0 config
rom retries)
Mar 20 20:28:35 rousalka kernel: fw_core: created new fw device fw1 (0 config
rom retries)
Mar 20 20:28:35 rousalka kernel: firmware_loading_store: unexpected value (0)
Mar 20 20:28:35 rousalka kernel: ivtv0: unable to open firmware
v4l-cx2341x-enc.fw (must be 376836 bytes)
Mar 20 20:28:35 rousalka kernel: ivtv0: did you put the firmware in the hotplug
firmware directory?
Mar 20 20:28:35 rousalka kernel: ivtv0: Retry loading firmware
Mar 20 20:28:35 rousalka kernel: firmware_loading_store: unexpected value (0)
Mar 20 20:28:35 rousalka kernel: ivtv0: unable to open firmware
v4l-cx2341x-enc.fw (must be 376836 bytes)
Mar 20 20:28:35 rousalka kernel: ivtv0: did you put the firmware in the hotplug
firmware directory?
Mar 20 20:28:35 rousalka kernel: ivtv0: Error initializing firmware
Mar 20 20:28:35 rousalka kernel: ivtv0: Error -19 on initialization
Mar 20 20:28:35 rousalka kernel: ivtv:  ====================  END INIT IVTV 
====================
Mar 20 20:28:35 rousalka kernel: ACPI: PCI Interrupt 0000:02:00.0[A] -> Link
[APC2] -> GSI 17 (level, low) -> IRQ 17
Mar 20 20:28:35 rousalka kernel: sky2 0000:02:00.0: v1.13 addr 0xe5000000 irq 17
Yukon-EC (0xb6) rev 1
Mar 20 20:28:35 rousalka kernel: sky2 eth1: addr 00:14:85:0c:3e:a4
Mar 20 20:28:35 rousalka kernel: ACPI: PCI Interrupt Link [APC1] enabled at IRQ 16
Mar 20 20:28:35 rousalka kernel: ACPI: PCI Interrupt 0000:01:08.0[A] -> Link
[APC1] -> GSI 16 (level, low) -> IRQ 16
Mar 20 20:28:35 rousalka kernel: emu1010: Special config.
Mar 20 20:28:35 rousalka kernel: emu1010: EMU_HANA_ID=0x1
Mar 20 20:28:35 rousalka kernel: firmware_loading_store: unexpected value (0)
Mar 20 20:28:35 rousalka kernel: firmware: emu/hana.fw not found. Err=-2


Steps to reproduce:

boot
Comment 1 Nicolas Mailhot 2007-03-20 23:34:01 UTC 
It's broken for ivtv (v4l) and E-MU (alsa) so looks like it's general
Comment 2 Nicolas Mailhot 2007-03-21 12:42:50 UTC 
Just to be clear :
1. it's not a userspace problem (rebooting on previous -mm works)
2. it's not a v4l problem : the two drivers on system that need firmware fail
the same way : ivtv (v4) and emu1010 (alsa)

So it's a pure 2.6.21-rc4-mm1 bug
Comment 3 Arnaud Patard 2007-03-22 01:55:33 UTC 
I'm hit by this bug too. I don't know how but I even managed to get the same
use-after-free bug : http://lkml.org/lkml/2007/03/22/62
I don't have time to test further but it may be interesting to try reverting
this patch : hack-to-make-wireless-work.patch
Comment 5 Nicolas Mailhot 2007-03-22 12:21:16 UTC 
Created attachment 10909 [details]
kernel config
Comment 6 Nicolas Mailhot 2007-03-22 12:21:57 UTC 
Created attachment 10910 [details]
/var/log/dmesg
Comment 7 Anonymous Emailer 2007-03-22 13:23:57 UTC 
Reply-To: akpm@linux-foundation.org

crap, ipw2200 is the only thing I have formware for, and it works OK.

Can you please turn on DEBUG_KOBJECT, see if we can get any
interesting messages.

Or, better, see the thread on linux-kernel today (Subject: Re: 2.6.21-rc4-mm1)
in which Cornelia Huck has generated a debug patch.  If you can continue this
investigation in that email thread it would be better, thanks.
Comment 9 Anonymous Emailer 2007-03-23 22:44:37 UTC 
Reply-To: akpm@linux-foundation.org

On Fri, 23 Mar 2007 12:58:07 -0700 bugme-daemon@bugzilla.kernel.org wrote:

> This combo works:

I'm lost.  What can we conclude from your observation??
Comment 10 Nicolas Mailhot 2007-03-24 04:56:25 UTC 
I conclude that the patch Cornelia posted here
http://marc.info/?l=linux-kernel&m=117464447600932&w=2 works on my system (with
latest RSDL version, could test without it if you want)

I just wanted to be clear what exact patch combo I tested, since I removed one
of the hot fixes and they've been changing a lot lately
Comment 11 Nicolas Mailhot 2007-03-27 11:19:12 UTC 
fixed in 2.6.21-rc5-mm2