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Date: Thu, 6 May 2010 16:08:54 -0400 From: Kyle McMartin <kyle@...artin.ca> To: Matthew Wilcox <matthew@....cx> Cc: Kyle McMartin <kyle@...artin.ca>, wzt.wzt@...il.com, linux-kernel@...r.kernel.org, linux-parisc@...r.kernel.org, deller@....de, jejb@...isc-linux.org Subject: Re: [PATCH] Parisc: Check kmalloc return value before use the buffer in ccio-dma.c On Thu, May 06, 2010 at 04:59:48AM -0600, Matthew Wilcox wrote: > On Thu, May 06, 2010 at 12:03:31AM -0400, Kyle McMartin wrote: > > We can change it to GFP_ATOMIC|__GFP_NOFAIL so it will retry infinitely, > > or we can panic in the error path with a nice error message so the users > > knows why his machine isn't going to work. > > If we can't initialise the IOMMU, can we even get a panic message out to > the user? > Excellent question! I'm not sure. IODC console will still be working up until it gets bonked, so early_console is probably still functional up until that point. --Kyle -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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