BUG() at line 804, slab.c, 2.4.3

BUG() at line 804, slab.c, 2.4.3

[Jeff V. Merkey]

I noticed that subsequent calls to kmem_cache_create with the same name
does not return an -EEXIST return code, but instead barfs and crashes
with a bug at slab.c line 804.  This occurs in 2.4.3.

Is this the expected behavior for kmem_cache_create?  I am using 
the slab allocator to create and maintain buffer head chains for 
asynch I/O.
 
I would assume that if a valid tag existed, an error would be returned 
rather than the system crashing.   I see the problem unloading then 
reloading the module on 2.4.3.  

Thanks,

Jeff

Re: BUG() at line 804, slab.c, 2.4.3

[Jeff V. Merkey]

On Tue, Apr 17, 2001 at 03:29:20PM -0600, Jeff V. Merkey wrote:

Added kmem_cache_destroy() to get around the problem.  I'm still
curious as to why we need to panic at this point rather than return
an error.  

Thanks

Jeff

> 
> 
> I noticed that subsequent calls to kmem_cache_create with the same name
> does not return an -EEXIST return code, but instead barfs and crashes
> with a bug at slab.c line 804.  This occurs in 2.4.3.
> 
> Is this the expected behavior for kmem_cache_create?  I am using 
> the slab allocator to create and maintain buffer head chains for 
> asynch I/O.
>  
> I would assume that if a valid tag existed, an error would be returned 
> rather than the system crashing.   I see the problem unloading then 
> reloading the module on 2.4.3.  
> 
> Thanks,
> 
> Jeff
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