From: Christopher Nielsen <cnielsen@pobox.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] kernel debug - how
Date: Fri, 28 Feb 2003 19:41:34 -0800 [thread overview]
Message-ID: <20030301034133.GY73079@cassie.foobarbaz.net> (raw)
> You can debug the kernel with acid -k but there
> is no way to write to kernel memory.
>
> However, you can set that variable by doing
>
> echo debug >/dev/fd0ctl
>
> (There is no way to change it back to zero
> after that, which is itself a bug.)
Here's a patch that adds a command to disable debugging
for the floppy driver.
121a122
> CMnodebug,
129a131
> CMnodebug, "nodebug", 1,
475a478,480
> break;
> case CMnodebug:
> floppydebug = 0;
--
Christopher Nielsen
"They who can give up essential liberty for temporary
safety, deserve neither liberty nor safety." --Benjamin Franklin
next reply other threads:[~2003-03-01 3:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-01 3:41 Christopher Nielsen [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-02-26 14:22 Steve Simon
2003-02-26 14:34 ` Russ Cox
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