--- Adrian Bunk bunk@stusta.de wrote:

On Sun, Apr 29, 2007 at 09:55:18AM -0700, Giridhar Pemmasani wrote:

...

When snd-maestro3 (ESS Maestro 3 driver) is enabled, kernel 2.6.21 fails

to

...

boot - it seems to stop at various points depending on what other modules

are

...

enabled. Disabling snd-maestro3 fixes all issues. Moreover, with

everything

...

else being same, using maestro3.c from 2.6.20 kernel and using it in

2.6.21

...

kernel also works - i.e., system boots fine. I will try to isolate the

issue

...

and follow up.

There were only the two attached patches between 2.6.20 and 2.6.21 to this driver:

• maestro3: add request_firmware()
• maestro3 - Use quirk list helper function

2.6.21 + 2.6.20 maestro3.c works for you.

Does 2.6.21 + 2.6.20 maestro3.c + patch-maestro3-1 work?

2.6.21 with 2.6.20's maestro3.c with patch-maestro3-1 exhibited the same issue. However, I identified the cause: maestro3 driver in 2.6.21 (even just patch-maestro3-1) tries to load firmware file from user space. But each time request_firmware is called it takes about 1 minute to timeout (because I don't have the firmware installed?). If I let the system take its time, even with maestro3.c from 2.6.21, it boots after timing out twice. So after about 2 minutes of no activity, system does boot. Following are trace messages I added to identify the issue:

[ 17.004000] input: TPPS/2 IBM TrackPoint as /class/input/input5 [ 70.904000] sound/pci/maestro3.c (snd_m3_create:2763): -2 [ 70.920000] sound/pci/maestro3.c (snd_m3_create:2774): -2 [ 130.940000] sound/pci/maestro3.c (snd_m3_create:2777): -2 [ 130.956000] sound/pci/maestro3.c (snd_m3_create:2788): -2 [ 130.972000] sound/pci/maestro3.c (snd_m3_create:2794): 0 [ 130.992000] sound/pci/maestro3.c (snd_m3_create:2797): 0 [ 131.012000] sound/pci/maestro3.c (snd_m3_create:2802): 0 [ 131.044000] sound/pci/maestro3.c (snd_m3_create:2804): 0 [ 131.580000] sound/pci/maestro3.c (snd_m3_create:2807): 0 [ 131.596000] sound/pci/maestro3.c (snd_m3_create:2810): 0 [ 131.612000] sound/pci/maestro3.c (snd_m3_create:2814): 0 [ 131.628000] sound/pci/maestro3.c (snd_m3_create:2821): 0 [ 132.364000] device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: dm-d evel@redhat.com

Giri

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