linux-kernel - Re: serial flow control appears broken

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20070802181349.40ca474f@the-village.bc.nu>
Date:	Thu, 2 Aug 2007 18:13:49 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Mark Lord <lkml@....ca>
Cc:	Robert Hancock <hancockr@...w.ca>,
	"Maciej W. Rozycki" <macro@...ux-mips.org>,
	Russell King <rmk+lkml@....linux.org.uk>,
	Lee Howard <faxguy@...ardsilvan.com>,
	linux-serial@...r.kernel.org, tytso@....edu,
	linux-kernel@...r.kernel.org
Subject: Re: serial flow control appears broken

> That's what "hdparm -u1" (or -u0) controls.

Only some of the time.

> Ingo's RT patches would probably fix all of this.

The worst case IDE times we've seen for executing a single indivisible
un-interruptible I/O cycle with a drive are around 1mS. Thats a hardware
limit.

Alan
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/