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Re: Can't unload uhci_hcd module with 2.6.22 -- also oops

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From: Tejun Heo <htejun@...>
To: Alan Stern <stern@...>
Cc: Gabriel C <nix.or.die@...>, A. Kalten <akalten@...>, Kernel development list <linux-kernel@...>
Subject: Re: Can't unload uhci_hcd module with 2.6.22 -- also oops
Date: Wednesday, August 1, 2007 - 6:30 am

Hello, Alan.

Alan Stern wrote:

2.6.23-rc1 bug was one too many put during symlink creation failure path
leading to premature release of parent kobject on removal.  The posted
log looks more like premature module unload.

For example, something like...

1. module b uses services of module a
2. module b creates some attributes with struct attribute in the module
3. module b unloads but attr created in #2 is not removed
4. module a tries to unload and tries to remove attr from #2 and oops
because struct attribute referenced by the attr is already gone.

Thanks.

-- 
tejun
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Messages in current thread:
Can't unload uhci_hcd module with 2.6.22 -- also oops, A. Kalten, (Mon Jul 30, 4:36 pm)
Re: Can't unload uhci_hcd module with 2.6.22 -- also oops, Gabriel C, (Mon Jul 30, 5:20 pm)
Re: Can't unload uhci_hcd module with 2.6.22 -- also oops, Alan Stern, (Tue Jul 31, 11:42 am)
Re: Can't unload uhci_hcd module with 2.6.22 -- also oops, Tejun Heo, (Wed Aug 1, 6:30 am)
Re: Can't unload uhci_hcd module with 2.6.22 -- also oops, Alan Stern, (Mon Jul 30, 6:09 pm)
Re: Can't unload uhci_hcd module with 2.6.22 -- also oops, A. Kalten, (Mon Jul 30, 7:21 pm)