Home » Mailing list archives » linux-kernel » 2010 » March » 8

Failed to alloc 4M DMA memory in the 256M system

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
[view in full thread]
From: Zhu, Yijun (NSN - CN/Beijing)
Subject: Failed to alloc 4M DMA memory in the 256M system
Date: Monday, March 8, 2010 - 12:02 am

Hi All:

I try to alloc 4M memory for the DMA purpose in the 256M system running
V2.6.29. But failed.

I check the system, there is no 4M DMA memory in the DMA zone free list
indeed, So I'd like to
ask for that Is it possible for me to alloc 4M(or larger) DMA memory in
the linux system. 
if YES, HOW?

I forgot to say my hardware is based on X86. 

Thank you in advance.
--
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
Messages in current thread:
[PATCH] Documentation: fix block/biodoc.txt dma mapping de ..., FUJITA Tomonori, (Sun Mar 7, 11:54 pm)
Failed to alloc 4M DMA memory in the 256M system, Zhu, Yijun (NSN - CN ..., (Mon Mar 8, 12:02 am)
Re: [PATCH] Documentation: fix block/biodoc.txt dma mappin ..., Jens Axboe, (Mon Mar 8, 1:10 am)
Re: Failed to alloc 4M DMA memory in the 256M system, Mark Hounschell, (Wed Mar 10, 3:37 am)