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[PATCH] ieee1394 : dump mmapped video1394 buffers in core files

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From: Philippe De Muyter <phdm@...>
To: <linux1394-devel@...>
Cc: <linux-kernel@...>
Subject: [PATCH] ieee1394 : dump mmapped video1394 buffers in core files
Date: Thursday, July 3, 2008 - 12:52 pm

Currently, core files do not contain the mmapped memory of the video1394
or dv1394 devices, which contain the actual video input, making it
impossible to analyse the cause of abnormal program termination for
image analysis or (de)compression software.  Fix that.

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
---
diff -r ced66ca0044f drivers/ieee1394/dma.c
--- a/drivers/ieee1394/dma.c	Mon Jun 30 08:58:09 2008 -0700
+++ b/drivers/ieee1394/dma.c	Thu Jul  3 18:40:24 2008 +0200
@@ -274,7 +274,7 @@ int dma_region_mmap(struct dma_region *d
 	vma->vm_ops = &dma_region_vm_ops;
 	vma->vm_private_data = dma;
 	vma->vm_file = file;
-	vma->vm_flags |= VM_RESERVED;
+	vma->vm_flags |= VM_RESERVED | VM_ALWAYSDUMP;
 
 	return 0;
 }
--
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Messages in current thread:
mmap'ed memory in core files ?, Philippe De Muyter, (Tue Jul 1, 9:21 am)
Re: mmap'ed memory in core files ?, Michael Kerrisk, (Tue Jul 1, 2:16 pm)
Re: mmap'ed memory in core files ?, Philippe De Muyter, (Wed Jul 2, 7:01 am)
Re: mmap'ed memory in core files ?, Philippe De Muyter, (Wed Jul 2, 6:50 am)
Re: mmap'ed memory in core files ?, Christoph Hellwig, (Wed Jul 2, 9:30 am)
Re: mmap'ed memory in core files ?, Michael Kerrisk, (Wed Jul 2, 6:58 am)
Re: mmap'ed memory in core files ?, Hidehiro Kawai, (Wed Jul 2, 11:51 pm)
Re: mmap'ed memory in core files ?, Philippe De Muyter, (Thu Jul 3, 5:37 am)
[PATCH] ieee1394 : dump mmapped video1394 buffers in core fi..., Philippe De Muyter, (Thu Jul 3, 12:52 pm)
Re: [PATCH] ieee1394 : dump mmapped video1394 buffers in cor..., Stefan Richter, (Fri Jul 4, 2:33 pm)
Re: [PATCH] ieee1394 : dump mmapped video1394 buffers in cor..., Philippe De Muyter, (Fri Jul 4, 4:49 pm)
Re: mmap'ed memory in core files ?, Philippe De Muyter, (Thu Jul 3, 5:22 am)
Re: mmap'ed memory in core files ?, Hidehiro Kawai, (Fri Jul 4, 1:50 am)
Re: mmap'ed memory in core files ?, Philippe De Muyter, (Fri Jul 4, 7:13 am)
Re: mmap'ed memory in core files ?, Stefan Richter, (Fri Jul 4, 2:33 am)
Re: mmap'ed memory in core files ?, Hugh Dickins, (Fri Jul 4, 10:29 am)
Re: mmap'ed memory in core files ?, Philippe De Muyter, (Fri Jul 4, 7:25 am)
Re: mmap'ed memory in core files ?, Philippe De Muyter, (Wed Jul 2, 7:04 am)
Re: mmap'ed memory in core files ?, Stefan Richter, (Wed Jul 2, 8:24 am)
Re: mmap'ed memory in core files ?, Philippe De Muyter, (Wed Jul 2, 9:16 am)
Re: mmap'ed memory in core files ?, Bron Gondwana, (Tue Jul 1, 5:44 pm)
Re: mmap'ed memory in core files ?, Michael Kerrisk, (Wed Jul 2, 1:14 am)