Hi Neil, As per my previous mails, I am working on RAID5 performance with bitmap support on 2.6.15 kernel, but facing some problems. I am debugging the RAID5 source code by putting some printk () statements inside the raid5.c file. But I am observing some strange behavior while working on this. After putting some printk () statements inside raid5.c file my RAID5 array sometimes gets created successfully and sometimes kernel gets crashed by giving kernel oops. Is the 2.6.15 RAID5 with bitmap support is stable? # cat /proc/mdstat shows Personalities : [raid5] md0 : active raid5 sdd1[4] sdc1[2] sdb1[1] sda1[0] 60243456 blocks level 5, 64k chunk, algorithm 2 [4/3] [UUU_] [>....................] recovery = 2.9% (589440/20081152) finish=563.5min speed=574K/sec bitmap: 0/10 pages [0KB], 1024KB chunk, file: /home/bitmap Do I will have to do I/O?s only after the RAID5 MD array gets initialized? Or Am I able to do I/O?s while RAID5 is in initialized state as shown by cat /proc/mdstat? Looking forward to your valuable suggestions. Thanks, Yogesh Pahilwan ----------------------------------------------------------- Yogesh Pahilwan Software Engineer ----------------------------------------------------------- S P Software Technologies (I) Pvt. Ltd. (ISO 9001:2000 Company) ?Parthsarathi?, S. No. 12/6, Kothrud, Pune - 411 038. Maharashtra, INDIA ----------------------------------------------------------- Tel # : + 91 ? 020 ? 56006983 / 56007503 / 56006154 Fax # : + 91 ? 020 ? 25411295 ----------------------------------------------------------- Visit us at: www.spsoftindia.com ----------------------------------------------------------- - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
