Hi, On Sat, 13 Jun 2009 22:32:11 -0300, Leandro Lucarella wrote: > Hi! > > While testing nilfs2 (using 2.6.30) doing some "cp"s and "rm"s, I noticed > sometimes they got stucked in D state, and the kernel had said the > following message: > > NILFS: IO error writing segment > > A friend gave me a hand and after adding some printk()s we found out that > the problem seems to occur when bio_alloc()s inside nilfs_alloc_seg_bio() > fail, making it return NULL; but we don't know how that causes the > processes to get stucked. > > PS: Please CC me. > -- > Leandro Lucarella (luca) | Blog colectivo: http://www.mazziblog.com.ar/blog/
Thank you for reporting this issue. Could you get stack dump of the stuck nilfs task? It is acquirable as follows if you enabled magic sysrq feature: # echo t > /proc/sysrq-trigger I will dig into the process how it got stuck. P.S. nilfs.org and the nilfs mailing list is stopping due to planned power outage. They will be back on June 15 0:30 a.m. A backup site except the list is available on http://nilfs.sourceforge.net/en/ during the period. Regards, Ryusuke Konishi _______________________________________________ users mailing list [email protected] https://www.nilfs.org/mailman/listinfo/users
