Re: using segmentation in the kernel

• To: Brian Gerst <[email protected]>
• Subject: Re: using segmentation in the kernel
• From: Alon Bar-Lev <[email protected]>
• Date: Tue, 11 Oct 2005 22:24:46 +0200
• Cc: "Jonathan M. McCune" <[email protected]>, [email protected], Arvind Seshadri <[email protected]>, Bryan Parno <[email protected]>
• Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:disposition-notification-to:date:from:user-agent:x-accept-language:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding; b=svluE/NJuKYc5dXor/18DWI6S2hBa2PvWRbxkhs+OO5mB6hC9TxwCuZzFpxL6eRIbb1qvLvnTwOizWfBeokR+VT/PcXvG3KqOLchJA1rgi2qbqSBeHPTm6o5IJ21+/V1szKXEnpBGV4zzFplpvJJ1fcQTZHKSfgyDc7ZLEo3lxc=
• In-reply-to: <[email protected]>
• References: <[email protected]> <[email protected]>
• Sender: [email protected]
• User-agent: Mozilla Thunderbird 1.0.6 (X11/20051008)

Brian Gerst wrote:

Jonathan M. McCune wrote:

Hello,

Why send the kernel back to the 2.0 days? There is no valid reason for doing this with they way x86 segmentation works, which is why it was done away with in 2.1.

But with segmentation you can set code to be read-only, disallow execution from stack, separate modules so that they will not affect kernel and more...

The main problem with segmentation is that it is x86 specific...

Best Regards,
Alon Bar-Lev.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• Follow-Ups:
  • Re: using segmentation in the kernel
    • From: Arjan van de Ven <[email protected]>
  • Re: using segmentation in the kernel
    • From: Brian Gerst <[email protected]>
  • Re: using segmentation in the kernel
    • From: Al Viro <[email protected]>

• References:
  • using segmentation in the kernel
    • From: "Jonathan M. McCune" <[email protected]>
  • Re: using segmentation in the kernel
    • From: Brian Gerst <[email protected]>

• Prev by Date: Instantiating my own random number generator
• Next by Date: Re: 2.6.14-rc4-rt1
• Previous by thread: Re: using segmentation in the kernel
• Next by thread: Re: using segmentation in the kernel
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]