Messages in this thread | | | Date | Thu, 16 Mar 2006 08:47:12 -0800 | From | Greg KH <> | Subject | Re: [Bug? Report] kref problem |
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On Thu, Mar 16, 2006 at 02:41:19PM +0300, Artem B. Bityutskiy wrote: > Hello Greg, > > I've hit on a kref problem Please, glance at the attached test module. > > The idea of the test is to create 2 kobjects (a and b), create dir A > with kobject A, and dir B with kobject B, so that A is B's parent. E.g., > we'll have /sys/A/B. > > I see the following output of the test: > > a inited, kref 1 > b inited, kref 1 > dir A created, A kref 1, B kref 1 > dir B created, A kref 1, B kref 1 > b_release > a_release > kobj B put, A kref 0, B kref 0 > kobj A put, A kref -1, B kref 0 > > > So what I don't like is this "A kref -1". Why when I remove directory B, > kobj a is released? For me it looks like a bug.
Sample code please?
Also, creating sysfs directories does not change the reference count on kobjects, they are two separate things.
thanks,
greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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