JFFS2 Summary warnings on large block NAND device

Hello,

I've been using JFFS2 for a little while now, and I'm just going through the warning and error messages that JFFS2 sometimes reports to see if we have any issues with our system. We've moved to a new NAND part from Micron that has 4K pages and 512K erase blocks and I'm getting some new warnings from JFFS2 that I've never seen before and am wondering if I have an issue.

Here's the three messages I'm worried about:
JFFS2 warning: (1) jffs2_sum_scan_sumnode: Summary node crc error, skipping summary information. JFFS2 warning: (633) jffs2_sum_write_data: Summary too big (-32 data, -2794 pad) in eraseblock at 27b80000 JFFS2 warning: (739) jffs2_sum_write_data: Not enough space for summary, padsize = -1324

Presumably, these messages are all related and are because summary information is limited to 64K so that kmalloc can be used for allocation. With the larger sized erase block I assume that the summary information is often exceeding 64K. Should I be worried about these messages? As far as I understand summary information is only used so that JFFS2 can mount quickly. Without it mount times will be a bit longer as it has to scan each page in the device instead of the summary page at the end of the erase block.

Is there a fix for this issue? Admittedly my kernel is a little old. 2.6.30.9, so I may not have the most up to date JFFS2 code. Though I did some searching online and I haven't found mention of solution to this problem, or if it is something that I should be concerned about.

Thanks for your time

Andrew McKay
IDERS Inc.