From: john@jjdev.com (John de la Garza)
To: kernelnewbies@lists.kernelnewbies.org
Subject: How to prevent a module from unloading when in used
Date: Wed, 16 Jul 2014 09:09:20 -0400 [thread overview]
Message-ID: <20140716130919.GA16611@vega.jjdev.com> (raw)
In-Reply-To: <CAPrYoTFxYAmLybA6wVwkdnvELSkps9upz-SR=kQtfQRPwdKo2w@mail.gmail.com>
On Wed, Jul 16, 2014 at 04:00:18PM +0530, Chetan Nanda wrote:
> A depends on B, so B is automatically loaded when A is loaded.
> B module is also directly being used by the user side code via misc
> interface.
>.
> Now when I am unloading module A, via "modprobe -r A" it is also unloading
> the module B which is being used by the application and resulting in the
> kernel crash.
You said that A depends on B, right? Why do you have A dependng on B?
If it A needs to have B then it makes sense that you can not remove A while
B is in use. If A doesn't need B, why not remove the dependency.
next prev parent reply other threads:[~2014-07-16 13:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAPrYoTHfEqU_8QRJKzY3gwF50JHB_b+QRc=u9MCM_A+mAsRw1A@mail.gmail.com>
2014-07-16 10:30 ` How to prevent a module from unloading when in used Chetan Nanda
2014-07-16 13:09 ` John de la Garza [this message]
[not found] ` <CAPrYoTHQFqqbskarb6RJjzZdcBiDCSFvc3uZwhOyzi5Y0a82NA@mail.gmail.com>
2014-07-16 15:27 ` Chetan Nanda
2014-07-16 16:21 ` Greg KH
2014-07-18 4:13 ` Chetan Nanda
2014-07-18 4:17 ` Greg KH
2014-07-18 6:29 ` Chetan Nanda
2014-07-21 3:39 ` Chetan Nanda
2014-07-21 4:22 ` Greg KH
2014-07-21 4:50 ` Chetan Nanda
2014-07-21 18:42 ` Greg KH
2014-07-16 17:10 ` Abhishek Sharma
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