From: Michael Jones <michael.jones@matrix-vision.de>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>,
Linux Media Mailing List <linux-media@vger.kernel.org>
Subject: omap3isp cache error when unloading
Date: Tue, 01 Mar 2011 17:41:01 +0100 [thread overview]
Message-ID: <4D6D219D.7020605@matrix-vision.de> (raw)
Hi all,
I get a warning about a cache error with the following steps:
0. load omap3-isp
1. set up media broken media pipeline. (e.g. set different formats on
opposite ends of a link, as will be the case for using the lane shifter)
2. try to capture images. isp_video_streamon() returns -EPIPE from the
failed isp_video_validate_pipeline() call.
3. unload omap3-isp module
then I get the following from kmem_cache_destroy():
slab error in kmem_cache_destroy(): cache `iovm_area_cache': Can't free all objects
[<c0040318>] (unwind_backtrace+0x0/0xec) from [<c00bfe14>] (kmem_cache_destroy+0x88/0xf4)
[<c00bfe14>] (kmem_cache_destroy+0x88/0xf4) from [<c00861f8>] (sys_delete_module+0x1c4/0x230)
[<c00861f8>] (sys_delete_module+0x1c4/0x230) from [<c003b680>] (ret_fast_syscall+0x0/0x30)
Then, when reloading the module:
SLAB: cache with size 32 has lost its name
Can somebody else confirm that they also observe this behavior?
-Michael
MATRIX VISION GmbH, Talstrasse 16, DE-71570 Oppenweiler
Registergericht: Amtsgericht Stuttgart, HRB 271090
Geschaeftsfuehrer: Gerhard Thullner, Werner Armingeon, Uwe Furtner
next reply other threads:[~2011-03-01 16:41 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-01 16:41 Michael Jones [this message]
2011-03-02 19:18 ` omap3isp cache error when unloading Laurent Pinchart
2011-03-03 16:06 ` Michael Jones
2011-03-04 7:38 ` Sakari Ailus
2011-03-04 10:07 ` Hiroshi DOYU
2011-03-04 13:12 ` David Cohen
2011-03-04 14:39 ` Michael Jones
2011-03-04 15:45 ` David Cohen
2011-03-04 16:49 ` David Cohen
2011-03-07 13:10 ` [PATCH] omap: iommu: disallow mapping NULL address Michael Jones
2011-03-07 19:17 ` Guzman Lugo, Fernando
2011-03-07 19:19 ` David Cohen
2011-03-07 19:25 ` Guzman Lugo, Fernando
2011-03-07 19:41 ` David Cohen
2011-03-07 21:19 ` Laurent Pinchart
2011-03-07 21:35 ` David Cohen
2011-03-08 9:07 ` Hiroshi DOYU
2011-03-08 20:31 ` Laurent Pinchart
2011-03-08 20:41 ` Guzman Lugo, Fernando
2011-03-08 20:51 ` David Cohen
2011-03-09 7:55 ` Sakari Ailus
2011-03-08 9:02 ` Hiroshi DOYU
2011-03-08 9:13 ` Sakari Ailus
2011-03-08 9:55 ` David Cohen
2011-03-08 17:49 ` Guzman Lugo, Fernando
2011-03-08 17:45 ` Guzman Lugo, Fernando
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