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authorDavid Sterba <dsterba@suse.cz>2013-03-01 19:03:00 +0400
committerJosef Bacik <jbacik@fusionio.com>2013-03-01 19:13:05 +0400
commit83c8266acc1d19debbf353a16aabbd892ef99462 (patch)
treea9e44cd5533e4f424ce2e89fcb766ebe4c1d7c02 /Documentation/kbuild/makefiles.txt
parent88e081bf82ffcb9be3ad33d04c829051d66da564 (diff)
downloadlinux-83c8266acc1d19debbf353a16aabbd892ef99462.tar.xz
btrfs: try harder to allocate raid56 stripe cache
The stripe hash table is large, starting with allocation order 4 and can go as high as order 7 in case lock debugging is turned on and structure padding happens. Observed mount failure: mount: page allocation failure: order:7, mode:0x200050 Pid: 8234, comm: mount Tainted: G W 3.8.0-default+ #267 Call Trace: [<ffffffff81114353>] warn_alloc_failed+0xf3/0x140 [<ffffffff811171d2>] ? __alloc_pages_direct_compact+0x92/0x250 [<ffffffff81117ac3>] __alloc_pages_nodemask+0x733/0x9d0 [<ffffffff81152878>] ? cache_alloc_refill+0x3f8/0x840 [<ffffffff811528bc>] cache_alloc_refill+0x43c/0x840 [<ffffffff811302eb>] ? is_kernel_percpu_address+0x4b/0x90 [<ffffffffa00a00ac>] ? btrfs_alloc_stripe_hash_table+0x5c/0x130 [btrfs] [<ffffffff811531d7>] kmem_cache_alloc_trace+0x247/0x270 [<ffffffffa00a00ac>] btrfs_alloc_stripe_hash_table+0x5c/0x130 [btrfs] [<ffffffffa003133f>] open_ctree+0xb2f/0x1f90 [btrfs] [<ffffffff81397289>] ? string+0x49/0xe0 [<ffffffff813987b3>] ? vsnprintf+0x443/0x5d0 [<ffffffffa0007cb6>] btrfs_mount+0x526/0x600 [btrfs] [<ffffffff8115127c>] ? cache_alloc_debugcheck_after+0x4c/0x200 [<ffffffff81162b90>] mount_fs+0x20/0xe0 [<ffffffff8117db26>] vfs_kern_mount+0x76/0x120 [<ffffffff811801b6>] do_mount+0x386/0x980 [<ffffffff8112a5cb>] ? strndup_user+0x5b/0x80 [<ffffffff81180840>] sys_mount+0x90/0xe0 [<ffffffff81962e99>] system_call_fastpath+0x16/0x1b Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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