On Mon, 2009-06-08 at 21:52 -0400, Pete Carah wrote: > I updated my recently acquired core-2 duo laptop to 7-stable amd64 (I > had been running 7-stable i386 with few problems) and have acquired an > apparent irq problem. > > Fortunately in debugging a linux shared-interrupt problem about a month > ago I learned that the X server will happily accept mouse motion as if > it was a display interrupt, so at least with some inconvenience I can > read the screen... (the keyboard isn't so obliging) > Ours does this too... > > /usr/src was picked up via svn on last Saturday morning EDT, ports via > csup about the same time. I have no idea if this bug is in the intel > driver, drm, or the core msi code... There are 2 peripherals that dmesg > says uses msi - re0 (which doesn't get a kernel thread indicated in ps > for either the stated irq (257) or re0) and drm0/vgapci0 (which > indicates irq256 in systat and ps). As I said, this worked properly > with earlier source (about a week) in i386 mode. I've used both G45 and > re controllers in (f10) linux msi mode with no problems in both 32 and > 64-bit. Fortunately this laptop now has enough disk to triple-boot so > at least something works...
Yes, Intel still has issues. I do have a patch that reworks the interrupt handling and gets Intel chips working. It isn't safe to commit yet though. It works correctly on my G45, but I have had reports that GM45 is still broken somehow. As a workaround you can disable MSI for just drm using loader tuneable hw.drm.msi=0. robert. > I am using svn instead of csup because I am trying (haven't gotten time > yet either :-) to port Sam's ath 92xx code to -stable and handling code > porting is much easier that way. > > -- Pete > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org" -- Robert Noland <rnol...@freebsd.org> FreeBSD
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