There was a mine hiding in the osd_uld driver. It was limited by the number of device minors it registers at startup which was 64.
The rest of the code is not limited at all and can hold as many devices as permitted by memory conditions. The fix is very simple just bump the max number to the maximum minor permitted which is 2^20. This is a serious BUG because some of the systems that intend to use the 3.2 Kernel to deploy pnfs. (Fedora 17 most probably) are bigger then 64 OSDs and will break. I have tested this on 64bit platform and user-mode works just fine with this. (Kernel is not an issue). Might there be issues hiding in 32bit ARCHs. From reading the code I could not find any. James would you like to take this through your tree for the next rc-fixes round or give me an ACK-BY: and I'll push it through the osd tree? The patch: [PATCH 1/1] osd_uld: Bump MAX_OSD_DEVICES from 64 to 1,048,576 Thanks Boaz -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
