Date: Thu, 24 Oct 2002 13:42:08 +0700 From: Alain Fauconnet <alain@cscoms.net> To: freebsd-stable@freebsd.org Subject: Re: Numerous hard hangs on TWO different ASUS P4T-E w/P4 1.6G Message-ID: <20021024134208.A6304@cscoms.net>
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Hello, About this problem, just to update it a bit: - the 4.6.2. boxes with hw.ata.ata_dma="0" still hang about twice a month (compared to sometimes more than once a day with DMA on) - one of these has been cvsup'ed as of 18-Sep-2002, kernel recompiled. It now identifies itself as "FreeBSD 4.7-RC". It still hangs with DMA on (about 2 or 3 times a week) and DMA off (once since then). I shall downgrade one of these to 4.5 and see if this makes any difference. Frank Mayhar wrote: ``I am completely convinced, now, that this has to do with interrupt sharing.'' So I have looked at how interrupts are allocated on these boxes. I see that irq 9 is now shared by the 2 USB controllers and the LAN adapter: Oct 23 10:26:31 webmail /kernel: uhci0: <Intel 82801BA/BAM (ICH2) USB controller USB-A> port 0xb400-0xb41f irq 9 at device 31.2 on pci0 Oct 23 10:26:31 webmail /kernel: uhci1: <Intel 82801BA/BAM (ICH2) USB controller USB-B> port 0xb000-0xb01f irq 9 at device 31.4 on pci0 Oct 23 10:26:31 webmail /kernel: xl0: <3Com 3c905C-TX Fast Etherlink XL> port 0x d800-0xd87f mem 0xef800000-0xef80007f irq 9 at device 10.0 on pci2 USB is not used at all on this box, so I will try disabling it completely, both in the BIOS and in the kernel. Joke: I'm glad that in another part of the company, Linux servers used for VPN (PPTP) are crashing like hell these days, else I'd be asked to migrate all these FreeBSD boxes to Linux :-) Greets, _Alain_ -- "I've RTFM. It says: `see your system administrator'. But... *I* am the system administrator" (DECUS US symposium session title, author unknown, ca. 1990) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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