Re: panic: pmap_mapdev: Couldn't alloc kernel virtual memory on mpt_attach

Pawel Worach wrote:
> mpt0: soft reset
> mpt1: <LSILogic 1030 Ultra4 Adapter> port 0x2700-0x27ff mem 
> 0xf7fc0000-0xf7fcffff,0xf7fd0000-0xf7fdffff irq 28 at device 7.1 on pci8
> mpt1: linking with peer (mpt0)
> mpt1: Reserved 0x10000 bytes for rid 0x14 type 3 at 0xf7fd0000
> panic: pmap_mapdev: Couldn't alloc kernel virtual memory

After a quick binary search I found the commit that sunk the mpt battleship.
2004-11-21 04:30:00 UTC works
2004-11-21 05:00:00 UTC panics

Can KTR be used during the boot process, the busdma stuff seems pretty well
instrumented?

scottl      2004-11-21 04:43:28 UTC

   FreeBSD src repository

   Modified files:
     sys/i386/i386        busdma_machdep.c
   Log:
   MFC amd64:
     Consolidate all of the bounce tests into the BUS_DMA_COULD_BOUNCE flag.
     Allocate the bounce zone at either tag creation or map creation to help
     avoid null-pointer derefs later on.  Track total pages per zone so that
     each zone can get a minimum allocation at tag creation time instead of
     being defeated by mis-behaving tags that suck up the max amount.

   Revision  Changes    Path
   1.66      +45 -29    src/sys/i386/i386/busdma_machdep.c

-- 
Pawel