freebsd-dev/sys/ia64
Hartmut Brandt e557905435 Fix a problem in bus_dmamap_load_{mbuf,uio} when the first mbuf or the first
uio segment is empty. In this case no dma segment is create by
bus_dmamap_load_buffer, but the calling routine clears the first flag.
Under certain combinations of addresses of the first and second mbuf/uio
buffer this leads to corrupted DMA segment descriptors. This was already
fixed by tmm in sparc64/sparc64/iommu.c.

PR:		kern/47733
Reviewed by:	sam
Approved by:	jake (mentor)
2003-02-04 16:30:27 +00:00
..
acpica Don't hardcode the address of the local (S)APIC (aka processor 2003-01-05 22:14:30 +00:00
compile Don't need the .keep_me files. Obrien and I committed past each other. 2001-07-01 23:35:44 +00:00
conf Remove special casing for running in the simulator from the kernel 2003-02-01 22:50:09 +00:00
ia32 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0. 2003-01-21 08:56:16 +00:00
ia64 Fix a problem in bus_dmamap_load_{mbuf,uio} when the first mbuf or the first 2003-02-04 16:30:27 +00:00
include Remove special casing for running in the simulator from the kernel 2003-02-01 22:50:09 +00:00
isa Tidy up some loose ends. 2002-04-29 07:43:16 +00:00
pci Delete legacy pcib code - we can't possibly work without acpi on ia64. 2001-10-06 10:09:57 +00:00