Date: Tue, 7 Sep 1999 23:09:31 -0600 From: Nate Williams <nate@mt.sri.com> To: Warner Losh <imp@village.org> Cc: nate@mt.sri.com (Nate Williams), Duncan Barclay <dmlb@ragnet.demon.co.uk>, freebsd-mobile@FreeBSD.ORG Subject: Re: Silo overflows on Libretto 50 Message-ID: <199909080509.XAA24903@mt.sri.com> In-Reply-To: <199909080505.XAA17535@harmony.village.org> References: <199908222248.QAA25757@mt.sri.com> <XFMail.990822113510.dmlb@computer.my.domain> <199909080505.XAA17535@harmony.village.org>
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> : > I'm getting silo overflows on my Libretto 50CT talking to an Option PC-Card > : > modem. Can I do anything about this or do I have to live with it? > : > : You must live with it until Warner fixes the PCCARD code to use 'fast' > : interrupts. Otherwise, the other IRQ load on the system hogs the system > : too much and overflows become very common. > > Since sio is broken in current for pccard, I'm not sure I follow what > you are saying here. What I'm saying is that the previous PCCARD code did not support fast interrupts at all, and I was assuming (possibly wrongly) that the re-written PCCARD code would overcome that weakness, so that people with PCMCIA modems could run reliably run faster. The 2.* code used the 'normal' interrupt mechanism for serial interrupts, which imposes a much higher load on the system than fast interrupts which causes the system to have silo overflows. Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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