Date: Tue, 26 May 1998 17:52:42 -0700 From: Mike Smith <mike@smith.net.au> To: Michael Robinson <robinson@public.bta.net.cn> Cc: mike@smith.net.au, freebsd-stable@FreeBSD.ORG Subject: Re: Bug in wd driver Message-ID: <199805270052.RAA02519@dingo.cdrom.com> In-Reply-To: Your message of "Wed, 27 May 1998 08:27:16 %2B0800." <199805270027.IAA10055@public.bta.net.cn>
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> > Mike Smith writes: > >Actually, an interrupt timeout is not a "recoverable hardware fault". > >This is a basic failure in the driver:controller protocol on the part > >of the drive. > > If this is a basic failure, why does the driver continue to function > normally for other processes, and for access to other sectors of the > same partition, at the same time it has succumbed to a non-recoverable > error? Because the firmware fails soft (perhaps resets, perhaps traps and restarts). > If an interrupt times out, it is the responsibility of the driver to > detect the timeout, and return an error to the requesting system call. > This did not happen, so I reported a bug. I'll grant you that a more graceful failure is called for. bad144 is not really applicable, inasmuch as it's not adequate for many uses. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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