Date: Wed, 3 Dec 2003 04:50:26 -0800 (PST) From: Daniel Lang <dl@leo.org> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/59260: Panic by integer divide fault in Thinkpad A31p / IRQ Problem? Message-ID: <200312031250.hB3CoQOA061157@freefall.freebsd.org>
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The following reply was made to PR kern/59260; it has been noted by GNATS. From: Daniel Lang <dl@leo.org> To: freebsd-gnats-submit@FreeBSD.org Cc: imp@freebsd.org, jhb@freebsd.org Subject: Re: kern/59260: Panic by integer divide fault in Thinkpad A31p / IRQ Problem? Date: Wed, 3 Dec 2003 13:48:35 +0100 Dear Warner, Dear John, I believe the problem is solved now. Although the live debugging did not turn up anything useful to me, meanwhile, I stumbled upon something else: In a newsarticle hw.pci.allow_unsupported_io_range was mentioned, together with a (different) problem on a Thinkpad (different model). I set this sysctl to 1 in /boot/loader.conf and now, it appears the system works like charm now. I'm not sure how to rate this. I guess it means quirky hardware, that is out of spec, but there exists a workaround. I'm happy that my system seems to work now, but I guess the panics should be prevented. Maybe the quirky hardware can be detected, a big warning messages issued during boot, and the workaround activated? Well, I guess that would be difficult if not impossible, otherwise it would have been done already. Please submit this workaround to the PR (my last email to you and freebsd-gnats-submit@ was somehow not included into the audit trail). Feel free to close it then. Thanks again for your explanations. Best regards, Daniel -- IRCnet: Mr-Spock - Truth lies in the eye of the beholder - Daniel Lang * dl@leo.org * +49 89 289 18532 * http://www.leo.org/~dl/
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