On Wednesday, March 28, 2012 3:57:37 pm Thomas Laus wrote: > > Hi. > > > > I'm a bit short on free machines, so the closest I can get right now > > is my everyday machine running from sources cvsupped from > > RELENG_8 3.rd of March: > > > I 'csuped' to FreeBSD 9.0-STABLE today and still had the same problem. This > computer has normal floppy disk operation when using FreeBSD 8.3-RC1 and > doesn't have any fd functionality with FreeBSD 9.0-STABLE. I entered a > Problem Report in the system today. > > Thanks for all of the help, we'll let the development team take if from here.
I just fixed a bug in HEAD yesterday where bounce buffers for ISA DMA were broken in 9. Can you try that change out? Author: jhb Date: Thu Mar 29 18:58:02 2012 New Revision: 233675 URL: http://svn.freebsd.org/changeset/base/233675 Log: Restore proper use of bounce buffers for ISA DMA. When locking was added, the call to pmap_kextract() was moved up, and as a result the code never updated the physical address to use for DMA if a bounce buffer was used. Restore the earlier location of pmap_kextract() so it takes bounce buffers into account. Tested by: kargl MFC after: 1 week Modified: head/sys/x86/isa/isa_dma.c Modified: head/sys/x86/isa/isa_dma.c ============================================================================== --- head/sys/x86/isa/isa_dma.c Thu Mar 29 17:50:01 2012 (r233674) +++ head/sys/x86/isa/isa_dma.c Thu Mar 29 18:58:02 2012 (r233675) @@ -237,8 +237,6 @@ isa_dmastart(int flags, caddr_t addr, u_ caddr_t newaddr; int dma_range_checked; - /* translate to physical */ - phys = pmap_extract(kernel_pmap, (vm_offset_t)addr); dma_range_checked = isa_dmarangecheck(addr, nbytes, chan); #ifdef DIAGNOSTIC @@ -281,6 +279,9 @@ isa_dmastart(int flags, caddr_t addr, u_ addr = newaddr; } + /* translate to physical */ + phys = pmap_extract(kernel_pmap, (vm_offset_t)addr); + if (flags & ISADMA_RAW) { dma_auto_mode |= (1 << chan); } else { -- John Baldwin _______________________________________________ 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"
