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mirror of https://git.FreeBSD.org/src.git synced 2024-12-20 11:11:24 +00:00
freebsd/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
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
pci