Date: Sun, 21 Mar 2004 02:00:40 -0800 (PST) From: =?KOI8-R?Q?S=3Fren_Schmidt?= <sos@DeepCore.dk> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/60526: Post-PAE stable SMP machine freezes Message-ID: <200403211000.i2LA0edX073378@freefall.freebsd.org>
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The following reply was made to PR kern/60526; it has been noted by GNATS. From: =?KOI8-R?Q?S=3Fren_Schmidt?= <sos@DeepCore.dk> To: Eugene Grosbein <eugen@grosbein.pp.ru> Cc: Doug White <dwhite@gumbysoft.com>, Eugene Grosbein <eugen@kuzbass.ru>, stable@FreeBSD.ORG, bug-followup@FreeBSD.ORG, sos@FreeBSD.ORG Subject: Re: kern/60526: Post-PAE stable SMP machine freezes Date: Sun, 21 Mar 2004 10:51:10 +0100 Eugene Grosbein wrote: > Doug White wrote: > > >>Someone referred me to a EETimes article, and I have hundreds of Tyan >>S2510/S2518 boards I can reproduce the problem on under multiple operating >>systems. > > > I googled a little for ROSB4. > > Here http://www.ussg.iu.edu/hypermail/linux/kernel/0206.1/1212.html > I've found the next statement: > > >>The system will lock solid when both IDE channels are accessed, >>and either one is using DMA. Since I want DMA, I simply abandon the >>secondary channel. > > > Is it possible do such a thing using FreeBSD? > > Next, Linux seem to have a workarond(?) since 2002: > > http://www.ussg.iu.edu/hypermail/linux/kernel/0206.1/0996.html > > Soren, could you please look at this? That fix newer worked AFAIK, today linux just dont allow UDMA on the ROSB4 at all. There is no good SW fix, and its also not established that a HW fix exists as well, however I cannot reproduce the problem on my ASUS CUR-DLS engineering sample, but ASUS wont tell anything about it... -- -S?ren
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