abel deuring wrote: > "Patrick S. Leung" wrote: > >>Hi Erik, >> >>I retired using your recommendation and it doesn't help much. Looks >>like the SANEI_DEBUG_SANEI_SCSI doesn't produces much output, but I do >>see some low level in /var/log/message ( I did a tail -f >>/var/log/message before I start sane): >> >>Apr 5 13:23:49 localhost kernel: __alloc_pages: 3-order allocation failed. >>Apr 5 13:23:49 localhost kernel: __alloc_pages: 2-order allocation failed. >> Last message repeat many times >> > > This sounds indeed like a kernel problem...
Abel, Those "_alloc_pages" warning in /var/log/messages are ok. That is the sg driver trying to get 32 KB to build a scatter gather list, if a contiguous 32 KB of memory is not available then it tries 16 KB (and potentially builds a list that has twice as many elements). I'm not sure why the "memory management" folk in the Linux kernel consider this is worthy of a log message. Doug Gilbert
