On Wed, May 16, 2007 at 08:31:00PM +0200, Tejun Heo wrote: > sd->s_dentry updates made by dentry/inode reclamation are racy and can > lead to BUG() or oops. This is already fixed in -mm and the fix is > scheduled to be merged into upstream for 2.6.23 but the fix > reimplements sysfs dentry dropping and is too risky for -stable > kernels. > > This is an interim solution for -stable kernels. sysfs reclamation is > disabled by default and can be enabled by using sysfs.enable_reclaim > kernel parameter. Note that dentries are still created on demand, so > attribute and symlinks nodes aren't allocated on creation. They're > allocated on first lookup and deallocated when the sysfs node is > removed.
Ick, this is going to kill memory on big boxes (s390 and others) and I don't really want to apply this it if at all possible. Maneesh, any other thoughts? thanks, greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
