Messages in this thread | | | Date | Wed, 12 Feb 2003 08:25:48 -0500 (EST) | From | "Richard B. Johnson" <> | Subject | Re: Panic `cat /proc/ioports` |
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On Tue, 11 Feb 2003, Andrew Morton wrote:
> "Richard B. Johnson" <root@chaos.analogic.com> wrote: > > > > Linux version 2.4.18, after it runs for a few days, will panic > > if I do `cat /proc/ioports`. Has this been reported/fixed in > > later versions? > > > > : Unable to handle kernel paging request at virtual address d48e2fa0 > > This means that some driver which was previously loaded forgot to do a > release_region(). Later, the /proc code tries to read stuff from within the > driver which isn't there any more and oopses. >
Yes. I just noticed that most network board drivers in version 2.4.18 do not execute release_region() after they have done a request_region(), if they fail to install because of some error. The error in this case was the failure to allocate memory because I told the kernel I only had 4 megabytes (exprimental ioremap() of the rest in another module).
Is somebody fixing these drivers (do you know). I could download the latest of the 2.4.n series and clean some of these up if they have not already been done by somebody else.
Cheers, Dick Johnson Penguin : Linux version 2.4.18 on an i686 machine (797.90 BogoMips). Why is the government concerned about the lunatic fringe? Think about it.
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