On Thu, 2009-09-03 at 08:18 +0100, Frank A. Kingswood wrote: > Frank A. Kingswood wrote: > > > I'm running jfs on md and got this error. The system is still usable > > afterwards (and has not been rebooted yet) so I could provide more > > information if needed. > > > > The system has occasionally had hard crashes during file access (perhaps > > starting with about 2.6.29) and these may be related. > > The same happens with 2.6.31-rc8 > > Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar > ... MAX_LOCKDEP_SUBCLASSES: 8 > ... MAX_LOCK_DEPTH: 48 > ... MAX_LOCKDEP_KEYS: 8191 > ... CLASSHASH_SIZE: 4096 > ... MAX_LOCKDEP_ENTRIES: 16384 > ... MAX_LOCKDEP_CHAINS: 32768 > ... CHAINHASH_SIZE: 16384 > memory used by lock dependency info: 6207 kB > per task-struct memory footprint: 2688 bytes > > ...a while later...
I looked at this a while back: http://lkml.org/lkml/2009/5/18/358 I didn't get a response to that, and I didn't follow up. I guess it's time to get back on it. I'll try to recreate the warning and see if this patch helps: diff --git a/mm/filemap.c b/mm/filemap.c index ccea3b6..59f5406 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1702,7 +1702,8 @@ repeat: page = page_cache_alloc_cold(mapping); if (!page) return ERR_PTR(-ENOMEM); - err = add_to_page_cache_lru(page, mapping, index, GFP_KERNEL); + err = add_to_page_cache_lru(page, mapping, index, + mapping_gfp_mask(mapping)); if (unlikely(err)) { page_cache_release(page); if (err == -EEXIST) -- David Kleikamp IBM Linux Technology Center ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Jfs-discussion mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/jfs-discussion
