Subject : 2.6.31-rc6: WARNING: at mm/page_alloc.c:1805 __alloc_pages_nodemas Submitter : Rogério Brito <rbrito@ime.usp.br> Date : 2009-11-06 23:10 References : http://marc.info/?l=linux-kernel&m=125754907413892&w=4 This entry is being used for tracking a regression from 2.6.31. Please don't close it until the problem is fixed in the mainline.
On Tuesday 17 November 2009, Theodore Tso wrote: > On Mon, Nov 16, 2009 at 11:37:47PM +0100, Rafael J. Wysocki wrote: > > This message has been generated automatically as a part of a report > > of recent regressions. > > > > The following bug entry is on the current list of known regressions > > from 2.6.31. Please verify if it still should be listed and let me know > > (either way). > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=14620 > > Subject : WARNING: at mm/page_alloc.c:1805 > __alloc_pages_nodemask > > Submitter : Rogério Brito <rbrito@ime.usp.br> > > Date : 2009-11-06 23:10 (11 days old) > > References : http://marc.info/?l=linux-kernel&m=125754907413892&w=4 > > This isn't technically a regression, since the warning is simply > complaining about something that apparently ext4 has been doing for a > long time, which is that it allocates some very large order data > buffers. So the change referenced simply printed a warning message > that complained about the fact. > > The actual problem will be fixed in 2.6.32, as we no longer allocate > the big data buffers at mount time.