From: Randy Dunlap <rdunlap@xxxxxxxxxxxx> ppa cannot handle highmem pages, and like imm, which already has this patch, the device is slow, so performance is not a big issue, so just force pages to be in low memory (hence mapped). Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxx> --- drivers/scsi/ppa.c | 4 ++++ 1 files changed, 4 insertions(+) --- linux-2.6.17-rc4.orig/drivers/scsi/ppa.c +++ linux-2.6.17-rc4/drivers/scsi/ppa.c @@ -997,6 +997,10 @@ static struct scsi_host_template ppa_tem .cmd_per_lun = 1, .use_clustering = ENABLE_CLUSTERING, .can_queue = 1, + .unchecked_isa_dma = 1, /* ppa cannot deal with highmem, so + * this is an easy trick to ensure + * all io pages for this host reside + * in low memory */ }; /*************************************************************************** --- - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
