Re: Bad sceduling for VXPocket 440

[Takashi Iwai <tiwai@suse.de>]

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At Wed, 19 May 2004 16:36:39 +0800,
Anders Johansson wrote:
> 
> Hi,
> 
> Soundcard: VXPocket 440
> Kernel version: 2.6.6 w. preemtive multitasking
> lib alsa version: 1.0.4
> 
> When I terminate arecord or aplay I get the following errors:
> 
> bad: scheduling while atomic!
> Call Trace:

does the attached patch work?


Takashi

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Index: alsa-kernel/drivers/vx/vx_pcm.c
===================================================================
RCS file: /suse/tiwai/cvs/alsa/alsa-kernel/drivers/vx/vx_pcm.c,v
retrieving revision 1.4
diff -u -r1.4 vx_pcm.c
--- alsa-kernel/drivers/vx/vx_pcm.c	11 Feb 2004 14:35:20 -0000	1.4
+++ alsa-kernel/drivers/vx/vx_pcm.c	21 May 2004 13:01:21 -0000
@@ -413,7 +413,7 @@
 
 	if ((err = vx_send_irqa(chip)) < 0)
 		return err;
-    
+#if 0    
 	/* If it completes successfully, wait for the pipes
 	 * reaching the expected state before returning
 	 * Check one pipe only (since they are synchronous)
@@ -428,6 +428,7 @@
 		if ((i % 4 ) == 0)
 			delay <<= 1;
 	}
+#endif
 	return err < 0 ? -EIO : 0;
 }