On Mon, Dec 21, 2015 at 04:08:11PM -0500, Tejun Heo wrote: reproduced it with 32 bit pae: > 1. Exclude memory above 4G line with boot param "max_addr=4G". doesn't work - max_addr=1G doesn't work either > 2. Disable highmem with "highmem=0". works! > 3. Try booting 64bit kernel. works Ok, so maybe it actually is PAE specific... but like you noted the block layer works entirely in terms of pages so... The one idea I can think of is - maybe BIOVEC_PHYS_MERGEABLE() is broken in PAE mode? I am unfamiliar with anything PAE though. Where does the ahci code consume the sglist? -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
