Re: [uml-devel] small fix for ubd in 2.5.49

[Oleg D. <gr...@na...>]

Hello!

On Wed, Dec 11, 2002 at 07:39:01PM -0800, James McMechan wrote:
> sysfs is confused how? I normally run with slab poisoning turned on.

Forgot to answer this question ;)
Each time we register another ubd device, we create kobject with the name
"ubd" (that's currently). When we create kobject, corresponding file/directory
is created in sysfs. But you cannot have everal different files in one dir
with the same filename (in Linux at least). So second and following
kobject creations failed. Moreover, due to wrong code, kobject and object it
referenced were immediately freed and subsequent accesses there killed the whole
thing.
Also I must admin that patch I provided was somewhat short-sighted as it did not
assumed someone might try have more that ~30 ubd devices ;)
Of couse it is better to append numeric value to "ubd" with enough space for
digits in your case.

Bye,
    Oleg