From: cinap_lenrek@felloff.net
To: 9fans@9fans.net
Subject: Re: [9fans] segattach in telnetd
Date: Sun, 14 Sep 2014 07:55:39 +0200 [thread overview]
Message-ID: <1c87c8c98bd3927b87d082b489843d37@felloff.net> (raw)
In-Reply-To: <C96AA700-6409-4746-B082-689F1FA2AEA3@ar.aichi-u.ac.jp>
no, it is not. labs also seems to just round up the length
not adding the remainder of the unaligned va address. it
would be a one line fix in the kernel.
the manpage sais this:
Va and len specify the position of the segment in the
process's address space. Va is rounded down to the nearest
page boundary and va+len is rounded up. The system does not
permit segments to overlap. If va is zero, the system will
choose a suitable address.
the question is, does the va in va+len mean before or after
the rounding down. i'd say *before* because otherwise, theres no
point in define it as va+len.
--
cinap
next prev parent reply other threads:[~2014-09-14 5:55 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-14 2:54 arisawa
2014-09-14 3:17 ` cinap_lenrek
2014-09-14 3:49 ` arisawa
2014-09-14 4:23 ` cinap_lenrek
2014-09-14 4:41 ` arisawa
2014-09-14 4:51 ` cinap_lenrek
2014-09-14 5:33 ` arisawa
2014-09-14 5:55 ` cinap_lenrek [this message]
2014-09-14 14:43 ` erik quanstrom
2014-09-14 19:04 ` Charles Forsyth
2014-09-15 16:59 ` erik quanstrom
2014-09-14 5:04 ` cinap_lenrek
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