On Tue, Aug 18, 2015 at 12:38:23PM +0200, Michal Hocko wrote: > From: Michal Hocko <mhocko@xxxxxxxx> > > Journal transaction might fail prematurely because the frozen_buffer > is allocated by GFP_NOFS request: > [ 72.440013] do_get_write_access: OOM for frozen_buffer > [ 72.440014] EXT4-fs: ext4_reserve_inode_write:4729: aborting transaction: Out of memory in __ext4_journal_get_write_access > [ 72.440015] EXT4-fs error (device sda1) in ext4_reserve_inode_write:4735: Out of memory > (...snipped....) > [ 72.495559] do_get_write_access: OOM for frozen_buffer > [ 72.495560] EXT4-fs: ext4_reserve_inode_write:4729: aborting transaction: Out of memory in __ext4_journal_get_write_access > [ 72.496839] do_get_write_access: OOM for frozen_buffer > [ 72.496841] EXT4-fs: ext4_reserve_inode_write:4729: aborting transaction: Out of memory in __ext4_journal_get_write_access > [ 72.505766] Aborting journal on device sda1-8. > [ 72.505851] EXT4-fs (sda1): Remounting filesystem read-only > > This wasn't a problem until "mm: page_alloc: do not lock up GFP_NOFS > allocations upon OOM" because small GPF_NOFS allocations never failed. > This allocation seems essential for the journal and GFP_NOFS is too > restrictive to the memory allocator so let's use __GFP_NOFAIL here to > emulate the previous behavior. > > jbd code has the very same issue so let's do the same there as well. > > Signed-off-by: Michal Hocko <mhocko@xxxxxxxx> Applied, thanks. - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
