From: Andrew Morton <akpm@linux-foundation.org>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: bugme-daemon@bugzilla.kernel.org, linux-kernel@vger.kernel.org,
mattilinnanvuori@yahoo.com
Subject: Re: [Bugme-new] [Bug 8957] New: Exported functions and variables should not be reachable by the outside of the module until module_init finishes
Date: Wed, 29 Aug 2007 16:23:35 -0700 [thread overview]
Message-ID: <20070829162335.8d5e8eca.akpm@linux-foundation.org> (raw)
In-Reply-To: <bug-8957-10286@http.bugzilla.kernel.org/>
On Wed, 29 Aug 2007 11:33:06 -0700 (PDT) bugme-daemon@bugzilla.kernel.org wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=8957
>
> Summary: Exported functions and variables should not be reachable
> by the outside of the module until module_init finishes
> Product: Other
> Version: 2.5
> KernelVersion: 2.6.23-rc4
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: Modules
> AssignedTo: other_modules@kernel-bugs.osdl.org
> ReportedBy: mattilinnanvuori@yahoo.com
>
>
> Problem Description: a module's exported functions can be called before before
> they are properly initialized by the module_init function.
>
> Steps to reproduce: write a module that exports functions that require
> initialization by the module_init function to work correctly.
>
> E.g. spin lock variables are no longer allowed to be initialized by C
> initializers of the module but only by spin_lock_init that can be called by the
> module_init function. If an exported function calls spin_lock before it is
> initialized, it deadlocks.
>
ooh, nice bug ;)
next parent reply other threads:[~2007-08-29 23:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-8957-10286@http.bugzilla.kernel.org/>
2007-08-29 23:23 ` Andrew Morton [this message]
[not found] <fa.fGbKfAxvHbZD1OUm5bpknraMlkQ@ifi.uio.no>
[not found] ` <fa.+esfGGdgETnuZiuGXcL9U8IpoNM@ifi.uio.no>
2007-08-30 1:33 ` [Bugme-new] [Bug 8957] New: Exported functions and variables should not be reachable by the outside of the module until module_init finishes Robert Hancock
2007-08-30 2:10 ` Andrew Morton
2007-08-31 15:54 ` Satyam Sharma
2007-08-30 17:35 ` Satyam Sharma
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