From: viresh.kumar@st.com (viresh kumar) Date: Thu, 4 Aug 2011 09:09:39 +0530 Subject: spi/spi-pl022: Query on working of DMA mode In-Reply-To: References: <4E3931B7.3010400@st.com> Message-ID: <4E3A147B.9060305@st.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 08/03/2011 08:28 PM, Linus Walleij wrote: >> > Here, allocation is requested with GFP_KERNEL flag, from a tasklet. >> > Which gives following crash logs: > What happens if you replace it with GFP_NOWAIT? > > That should work for everybody. > > Or you could remove the tasklet allover and replace it with a workqueue. > Ok. I will fix this and include in my patchset. >> > Is DMA mode working in your case? > Yes, magically :-/ But how? Don't you have any message with more than one transfer in it? -- viresh