Added linux-raid to cc - this is not an XFS problem Cheers, Dave. On Wed, Mar 19, 2008 at 03:05:10PM +0000, David Flynn wrote: > We are currently experiencing a problem with writing to xfs on a 20disk > raid5 array. It seems very similar to a post in 2007nov09: > > Re: 2.6.23.1: mdadm/raid5 hung/d-state > > Using kernel 2.6.24. Unlike the previous post the array was in a clean > state so no resync was occuring. We are able to read from the array, > but any process that writes joins the list of blocked tasks > > The machine is: > 2 of dual core opteron 280 > 16GiB RAM > 4 lots of 5 sata disks connected to sil3124 sata hba. > Running 2.6.24 > > There was a single rsync process accessing the array at the time > (~40MB/sec). > > Random other bits[1]: > # cat /sys/block/md1/md/stripe_cache_active > 256 > # cat /sys/block/md1/md/stripe_cache_size > 256 > > Example of sysrq-w: > > pdflush D ffffffff804297c0 0 245 2 > ffff810274dd1920 0000000000000046 0000000000000000 ffffffff80305ba3 > ffff810476524680 ffff81047748e000 ffff810276456800 ffff81047748e250 > 00000000ffffffff ffff8102758a0d30 0000000000000000 0000000000000000 > Call Trace: > [<ffffffff80305ba3>] __generic_unplug_device+0x13/0x24 > [<ffffffff882fcfcf>] :raid456:get_active_stripe+0x233/0x4c7 > [<ffffffff8022ee03>] default_wake_function+0x0/0xe > [<ffffffff88302e6c>] :raid456:make_request+0x3f0/0x568 > [<ffffffff80293fc7>] new_slab+0x1e5/0x20c > [<ffffffff80247fea>] autoremove_wake_function+0x0/0x2e > [<ffffffff802941b6>] __slab_alloc+0x1c8/0x3a9 > [<ffffffff802737a4>] mempool_alloc+0x24/0xda > [<ffffffff803042be>] generic_make_request+0x30e/0x349 > [<ffffffff802737a4>] mempool_alloc+0x24/0xda > [<ffffffff883826ed>] :xfs:xfs_cluster_write+0xcd/0xf2 > [<ffffffff803043d4>] submit_bio+0xdb/0xe2 > [<ffffffff802babc1>] __bio_add_page+0x109/0x1ce > [<ffffffff88381ea0>] :xfs:xfs_submit_ioend_bio+0x1e/0x27 > [<ffffffff88381f46>] :xfs:xfs_submit_ioend+0x88/0xc6 > [<ffffffff88382d9e>] :xfs:xfs_page_state_convert+0x508/0x557 > [<ffffffff88382f39>] :xfs:xfs_vm_writepage+0xa7/0xde > [<ffffffff802771e3>] __writepage+0xa/0x23 > [<ffffffff8027767c>] write_cache_pages+0x176/0x2a5 > [<ffffffff802771d9>] __writepage+0x0/0x23 > [<ffffffff802777e7>] do_writepages+0x20/0x2d > [<ffffffff802b3ce1>] __writeback_single_inode+0x18d/0x2e0 > [<ffffffff8026fb13>] delayacct_end+0x7d/0x88 > [<ffffffff802b4175>] sync_sb_inodes+0x1b6/0x273 > [<ffffffff802b4595>] writeback_inodes+0x69/0xbb > [<ffffffff8027801a>] wb_kupdate+0x9e/0x10d > [<ffffffff8027839e>] pdflush+0x0/0x204 > [<ffffffff802784f8>] pdflush+0x15a/0x204 > [<ffffffff80277f7c>] wb_kupdate+0x0/0x10d > [<ffffffff80247ecb>] kthread+0x47/0x74 > [<ffffffff8020cc48>] child_rip+0xa/0x12 > [<ffffffff80247e84>] kthread+0x0/0x74 > [<ffffffff8020cc3e>] child_rip+0x0/0x12 > > I've attatched the rest of the output. > Other than the blocked processes, the machine is idle. > > After rebooting the machine, we increased stripe_cache_size to 512 and > are currently seeing the same processes (now with md1_resync) periodically > hang in the Dstate, best described as the almost the entire machine > freezing for upto a minute then recovering. > > I say almost as some processes seem unaffected, eg my existing ssh login > to echo w > /proc/sysrq-trigger and a vmware virtual > machine (root filesystem for host and guest is an nfsroot mounted from > elsewhere). Trying to login during these periods of tenseness fails > though. > > During these tense periods everything is idle with anything touching md1 > in the D state. > > Any thoughts? > > ..david > SysRq : Show Blocked State > task PC stack pid father > pdflush D ffff81047748e000 0 245 2 > ffff810274dd1920 0000000000000046 ffff810274618680 ffffffff80305ba3 > ffff810274618680 ffff81047748e000 ffff810477474000 ffff81047748e250 > ffff810476159400 ffff8102758a0d30 0000000000000246 0000000000000000 > Call Trace: > [<ffffffff80305ba3>] __generic_unplug_device+0x13/0x24 > [<ffffffff882fcfcf>] :raid456:get_active_stripe+0x233/0x4c7 > [<ffffffff8022ee03>] default_wake_function+0x0/0xe > [<ffffffff88302e6c>] :raid456:make_request+0x3f0/0x568 > [<ffffffff80293fc7>] new_slab+0x1e5/0x20c > [<ffffffff80247fea>] autoremove_wake_function+0x0/0x2e > [<ffffffff802941b6>] __slab_alloc+0x1c8/0x3a9 > [<ffffffff802737a4>] mempool_alloc+0x24/0xda > [<ffffffff803042be>] generic_make_request+0x30e/0x349 > [<ffffffff802737a4>] mempool_alloc+0x24/0xda > [<ffffffff883826ed>] :xfs:xfs_cluster_write+0xcd/0xf2 > [<ffffffff803043d4>] submit_bio+0xdb/0xe2 > [<ffffffff802babc1>] __bio_add_page+0x109/0x1ce > [<ffffffff88381ea0>] :xfs:xfs_submit_ioend_bio+0x1e/0x27 > [<ffffffff88381f46>] :xfs:xfs_submit_ioend+0x88/0xc6 > [<ffffffff88382d9e>] :xfs:xfs_page_state_convert+0x508/0x557 > [<ffffffff88382f39>] :xfs:xfs_vm_writepage+0xa7/0xde > [<ffffffff802771e3>] __writepage+0xa/0x23 > [<ffffffff8027767c>] write_cache_pages+0x176/0x2a5 > [<ffffffff802771d9>] __writepage+0x0/0x23 > [<ffffffff802777e7>] do_writepages+0x20/0x2d > [<ffffffff802b3ce1>] __writeback_single_inode+0x18d/0x2e0 > [<ffffffff8026fb13>] delayacct_end+0x7d/0x88 > [<ffffffff802b4175>] sync_sb_inodes+0x1b6/0x273 > [<ffffffff802b4595>] writeback_inodes+0x69/0xbb > [<ffffffff8027801a>] wb_kupdate+0x9e/0x10d > [<ffffffff8027839e>] pdflush+0x0/0x204 > [<ffffffff802784f8>] pdflush+0x15a/0x204 > [<ffffffff80277f7c>] wb_kupdate+0x0/0x10d > [<ffffffff80247ecb>] kthread+0x47/0x74 > [<ffffffff8020cc48>] child_rip+0xa/0x12 > [<ffffffff80247e84>] kthread+0x0/0x74 > [<ffffffff8020cc3e>] child_rip+0x0/0x12 > > kswapd0 D ffffffff804297c0 0 247 2 > ffff810274dd7880 0000000000000046 ffff810274618680 ffffffff80305ba3 > ffff810274618680 ffff81047748e800 ffff81047748e000 ffff81047748ea50 > ffff810476159400 ffff8102758a0d30 0000000000000246 0000000000000000 > Call Trace: > [<ffffffff80305ba3>] __generic_unplug_device+0x13/0x24 > [<ffffffff882fcfcf>] :raid456:get_active_stripe+0x233/0x4c7 > [<ffffffff8022ee03>] default_wake_function+0x0/0xe > [<ffffffff80276a69>] __alloc_pages+0x66/0x309 > [<ffffffff88302e6c>] :raid456:make_request+0x3f0/0x568 > [<ffffffff80293fc7>] new_slab+0x1e5/0x20c > [<ffffffff80247fea>] autoremove_wake_function+0x0/0x2e > [<ffffffff802941b6>] __slab_alloc+0x1c8/0x3a9 > [<ffffffff802737a4>] mempool_alloc+0x24/0xda > [<ffffffff803042be>] generic_make_request+0x30e/0x349 > [<ffffffff802737a4>] mempool_alloc+0x24/0xda > [<ffffffff883826ed>] :xfs:xfs_cluster_write+0xcd/0xf2 > [<ffffffff803043d4>] submit_bio+0xdb/0xe2 > [<ffffffff802bac0c>] __bio_add_page+0x154/0x1ce > [<ffffffff88381ea0>] :xfs:xfs_submit_ioend_bio+0x1e/0x27 > [<ffffffff88381f65>] :xfs:xfs_submit_ioend+0xa7/0xc6 > [<ffffffff88382d9e>] :xfs:xfs_page_state_convert+0x508/0x557 > [<ffffffff88382f39>] :xfs:xfs_vm_writepage+0xa7/0xde > [<ffffffff8027a93a>] shrink_page_list+0x346/0x570 > [<ffffffff8027ac81>] shrink_inactive_list+0x11d/0x381 > [<ffffffff8027afca>] shrink_zone+0xe5/0x108 > [<ffffffff8027b4c8>] kswapd+0x2fc/0x49b > [<ffffffff80414bf4>] thread_return+0x3d/0xab > [<ffffffff80247fea>] autoremove_wake_function+0x0/0x2e > [<ffffffff8027b1cc>] kswapd+0x0/0x49b > [<ffffffff80247ecb>] kthread+0x47/0x74 > [<ffffffff8020cc48>] child_rip+0xa/0x12 > [<ffffffff80247e84>] kthread+0x0/0x74 > [<ffffffff8020cc3e>] child_rip+0x0/0x12 > > kswapd1 D 0000000000000001 0 248 2 > ffff810274dd9880 0000000000000046 ffff810274dd9848 ffffffff80305ba3 > ffff810274618680 ffff81047748f000 ffff810475dbb800 ffff81047748f250 > 00000000ffffffff ffff8102758a0d30 0000000000000400 0000000000000000 > Call Trace: > [<ffffffff80305ba3>] __generic_unplug_device+0x13/0x24 > [<ffffffff882fcfcf>] :raid456:get_active_stripe+0x233/0x4c7 > [<ffffffff8022ee03>] default_wake_function+0x0/0xe > [<ffffffff88302e6c>] :raid456:make_request+0x3f0/0x568 > [<ffffffff88381a55>] :xfs:xfs_start_page_writeback+0x24/0x38 > [<ffffffff80247fea>] autoremove_wake_function+0x0/0x2e > [<ffffffff803042be>] generic_make_request+0x30e/0x349 > [<ffffffff802737a4>] mempool_alloc+0x24/0xda > [<ffffffff883826ed>] :xfs:xfs_cluster_write+0xcd/0xf2 > [<ffffffff803043d4>] submit_bio+0xdb/0xe2 > [<ffffffff802babc1>] __bio_add_page+0x109/0x1ce > [<ffffffff88381ea0>] :xfs:xfs_submit_ioend_bio+0x1e/0x27 > [<ffffffff88381f65>] :xfs:xfs_submit_ioend+0xa7/0xc6 > [<ffffffff88382d9e>] :xfs:xfs_page_state_convert+0x508/0x557 > [<ffffffff88382f39>] :xfs:xfs_vm_writepage+0xa7/0xde > [<ffffffff8027a93a>] shrink_page_list+0x346/0x570 > [<ffffffff8027ac81>] shrink_inactive_list+0x11d/0x381 > [<ffffffff8027afca>] shrink_zone+0xe5/0x108 > [<ffffffff8027b4c8>] kswapd+0x2fc/0x49b > [<ffffffff80414bf4>] thread_return+0x3d/0xab > [<ffffffff80247fea>] autoremove_wake_function+0x0/0x2e > [<ffffffff8027b1cc>] kswapd+0x0/0x49b > [<ffffffff80247ecb>] kthread+0x47/0x74 > [<ffffffff8020cc48>] child_rip+0xa/0x12 > [<ffffffff80247e84>] kthread+0x0/0x74 > [<ffffffff8020cc3e>] child_rip+0x0/0x12 > > xfssyncd D ffffffff804297c0 0 4132 2 > ffff81047643db60 0000000000000046 0000000000000000 ffffffff80305ba3 > ffff810274618680 ffff81047584d000 ffffffff804dc4a0 ffff81047584d250 > 00000000ffffffff ffff8102758a0d30 0000000000000000 0000000000000000 > Call Trace: > [<ffffffff80305ba3>] __generic_unplug_device+0x13/0x24 > [<ffffffff882fcfcf>] :raid456:get_active_stripe+0x233/0x4c7 > [<ffffffff8022e6a5>] __wake_up+0x38/0x4f > [<ffffffff8022ee03>] default_wake_function+0x0/0xe > [<ffffffff88302e6c>] :raid456:make_request+0x3f0/0x568 > [<ffffffff8836d61e>] :xfs:xlog_write+0x3e0/0x459 > [<ffffffff80247fea>] autoremove_wake_function+0x0/0x2e > [<ffffffff8029265d>] get_partial_node+0x15/0x7e > [<ffffffff802737a4>] mempool_alloc+0x24/0xda > [<ffffffff803042be>] generic_make_request+0x30e/0x349 > [<ffffffff802737a4>] mempool_alloc+0x24/0xda > [<ffffffff8022da0e>] find_busiest_group+0x248/0x6ea > [<ffffffff803043d4>] submit_bio+0xdb/0xe2 > [<ffffffff8838473f>] :xfs:_xfs_buf_ioapply+0x266/0x291 > [<ffffffff883847a3>] :xfs:xfs_buf_iorequest+0x39/0x66 > [<ffffffff8836be90>] :xfs:xlog_bdstrat_cb+0x16/0x3c > [<ffffffff8836ce5e>] :xfs:xlog_sync+0x238/0x3fb > [<ffffffff8836dac7>] :xfs:xlog_state_sync_all+0xa6/0x1c0 > [<ffffffff8023e0ff>] try_to_del_timer_sync+0x51/0x5a > [<ffffffff8836e02a>] :xfs:_xfs_log_force+0x5c/0x6b > [<ffffffff8837ac0d>] :xfs:xfs_syncsub+0x35/0x241 > [<ffffffff8838925c>] :xfs:xfs_sync_worker+0x17/0x36 > [<ffffffff883894f1>] :xfs:xfssyncd+0x13b/0x18f > [<ffffffff883893b6>] :xfs:xfssyncd+0x0/0x18f > [<ffffffff80247ecb>] kthread+0x47/0x74 > [<ffffffff8020cc48>] child_rip+0xa/0x12 > [<ffffffff80247e84>] kthread+0x0/0x74 > [<ffffffff8020cc3e>] child_rip+0x0/0x12 > > rsync D ffff81047120a000 0 5096 1 > ffff8104715874b8 0000000000000086 ffff810274618680 ffffffff80305ba3 > ffff810274618680 ffff81047120a000 ffff81047584d000 ffff81047120a250 > ffff810476159400 ffff8102758a0d30 0000000000000246 0000000000000000 > Call Trace: > [<ffffffff80305ba3>] __generic_unplug_device+0x13/0x24 > [<ffffffff882fcfcf>] :raid456:get_active_stripe+0x233/0x4c7 > [<ffffffff8022e6a5>] __wake_up+0x38/0x4f > [<ffffffff8022ee03>] default_wake_function+0x0/0xe > [<ffffffff88302e6c>] :raid456:make_request+0x3f0/0x568 > [<ffffffff80293fc7>] new_slab+0x1e5/0x20c > [<ffffffff80247fea>] autoremove_wake_function+0x0/0x2e > [<ffffffff802941b6>] __slab_alloc+0x1c8/0x3a9 > [<ffffffff802737a4>] mempool_alloc+0x24/0xda > [<ffffffff803042be>] generic_make_request+0x30e/0x349 > [<ffffffff802737a4>] mempool_alloc+0x24/0xda > [<ffffffff883826ed>] :xfs:xfs_cluster_write+0xcd/0xf2 > [<ffffffff803043d4>] submit_bio+0xdb/0xe2 > [<ffffffff802bac0c>] __bio_add_page+0x154/0x1ce > [<ffffffff88381ea0>] :xfs:xfs_submit_ioend_bio+0x1e/0x27 > [<ffffffff88381f65>] :xfs:xfs_submit_ioend+0xa7/0xc6 > [<ffffffff88382d9e>] :xfs:xfs_page_state_convert+0x508/0x557 > [<ffffffff88382f39>] :xfs:xfs_vm_writepage+0xa7/0xde > [<ffffffff8027a93a>] shrink_page_list+0x346/0x570 > [<ffffffff8027ac81>] shrink_inactive_list+0x11d/0x381 > [<ffffffff8027799a>] get_dirty_limits+0x1d/0x184 > [<ffffffff8027afca>] shrink_zone+0xe5/0x108 > [<ffffffff8027bd77>] try_to_free_pages+0x17b/0x288 > [<ffffffff80276bcd>] __alloc_pages+0x1ca/0x309 > [<ffffffff8027185f>] __grab_cache_page+0x33/0x6f > [<ffffffff802b8d6f>] block_write_begin+0x38/0xcd > [<ffffffff88381b35>] :xfs:xfs_vm_write_begin+0x22/0x27 > [<ffffffff88382155>] :xfs:xfs_get_blocks+0x0/0xe > [<ffffffff80272484>] generic_file_buffered_write+0x153/0x670 > [<ffffffff803a9348>] memcpy_toiovec+0x36/0x66 > [<ffffffff88388b78>] :xfs:xfs_write+0x54d/0x789 > [<ffffffff80299018>] do_sync_write+0xc9/0x10c > [<ffffffff80247fea>] autoremove_wake_function+0x0/0x2e > [<ffffffff80299807>] vfs_write+0xc6/0x16f > [<ffffffff80299dc2>] sys_write+0x45/0x6e > [<ffffffff8020be2e>] system_call+0x7e/0x83 > > bash D ffffffff804297c0 0 6739 6647 > ffff81037f4fd768 0000000000000086 0000000000000000 ffffffff80305ba3 > ffff810274618680 ffff8102836ec800 ffff8102764b6800 ffff8102836eca50 > 00000000ffffffff ffff8102758a0d30 0000000000000000 0000000000000000 > Call Trace: > [<ffffffff80305ba3>] __generic_unplug_device+0x13/0x24 > [<ffffffff882fcfcf>] :raid456:get_active_stripe+0x233/0x4c7 > [<ffffffff8022e6a5>] __wake_up+0x38/0x4f > [<ffffffff8022ee03>] default_wake_function+0x0/0xe > [<ffffffff88302e6c>] :raid456:make_request+0x3f0/0x568 > [<ffffffff88381a55>] :xfs:xfs_start_page_writeback+0x24/0x38 > [<ffffffff80247fea>] autoremove_wake_function+0x0/0x2e > [<ffffffff803042be>] generic_make_request+0x30e/0x349 > [<ffffffff802737a4>] mempool_alloc+0x24/0xda > [<ffffffff883826ed>] :xfs:xfs_cluster_write+0xcd/0xf2 > [<ffffffff803043d4>] submit_bio+0xdb/0xe2 > [<ffffffff802bac0c>] __bio_add_page+0x154/0x1ce > [<ffffffff88381ea0>] :xfs:xfs_submit_ioend_bio+0x1e/0x27 > [<ffffffff88381f65>] :xfs:xfs_submit_ioend+0xa7/0xc6 > [<ffffffff88382d9e>] :xfs:xfs_page_state_convert+0x508/0x557 > [<ffffffff802749d0>] get_pageblock_flags_group+0x3e/0x7f > [<ffffffff88382f39>] :xfs:xfs_vm_writepage+0xa7/0xde > [<ffffffff8027a93a>] shrink_page_list+0x346/0x570 > [<ffffffff8027ac81>] shrink_inactive_list+0x11d/0x381 > [<ffffffff8027799a>] get_dirty_limits+0x1d/0x184 > [<ffffffff8027afca>] shrink_zone+0xe5/0x108 > [<ffffffff8027bd77>] try_to_free_pages+0x17b/0x288 > [<ffffffff80276bcd>] __alloc_pages+0x1ca/0x309 > [<ffffffff882fde17>] :raid456:grow_one_stripe+0x70/0xd8 > [<ffffffff882fdf08>] :raid456:raid5_store_stripe_cache_size+0x89/0xac > [<ffffffff80276a69>] __alloc_pages+0x66/0x309 > [<ffffffff882df6a6>] :md_mod:md_attr_store+0x61/0x88 > [<ffffffff802db3d4>] sysfs_write_file+0xd2/0x110 > [<ffffffff80299807>] vfs_write+0xc6/0x16f > [<ffffffff80299dc2>] sys_write+0x45/0x6e > [<ffffffff8020be2e>] system_call+0x7e/0x83 > > vim D ffff810477016800 0 7040 7013 > ffff81001b11f748 0000000000000086 ffff810274618680 ffffffff80305ba3 > ffff810274618680 ffff810477016800 ffff81047655e800 ffff810477016a50 > ffff810476159400 ffff8102758a0d30 0000000000000246 0000000000000000 > Call Trace: > [<ffffffff80305ba3>] __generic_unplug_device+0x13/0x24 > [<ffffffff882fcfcf>] :raid456:get_active_stripe+0x233/0x4c7 > [<ffffffff80247fd9>] wake_up_bit+0x11/0x22 > [<ffffffff8022ee03>] default_wake_function+0x0/0xe > [<ffffffff88302e6c>] :raid456:make_request+0x3f0/0x568 > [<ffffffff80247fea>] autoremove_wake_function+0x0/0x2e > [<ffffffff802715e0>] find_lock_page+0x1f/0x7f > [<ffffffff803042be>] generic_make_request+0x30e/0x349 > [<ffffffff802737a4>] mempool_alloc+0x24/0xda > [<ffffffff803043d4>] submit_bio+0xdb/0xe2 > [<ffffffff8838473f>] :xfs:_xfs_buf_ioapply+0x266/0x291 > [<ffffffff883847a3>] :xfs:xfs_buf_iorequest+0x39/0x66 > [<ffffffff8836be90>] :xfs:xlog_bdstrat_cb+0x16/0x3c > [<ffffffff8836ce5e>] :xfs:xlog_sync+0x238/0x3fb > [<ffffffff8836dac7>] :xfs:xlog_state_sync_all+0xa6/0x1c0 > [<ffffffff8836e02a>] :xfs:_xfs_log_force+0x5c/0x6b > [<ffffffff88381546>] :xfs:kmem_zone_alloc+0x52/0x9f > [<ffffffff883633a0>] :xfs:xfs_iget_core+0x19d/0x63a > [<ffffffff802aaf9e>] alloc_inode+0x152/0x1c2 > [<ffffffff883638d8>] :xfs:xfs_iget+0x9b/0x13f > [<ffffffff88378906>] :xfs:xfs_trans_iget+0xae/0x124 > [<ffffffff88366d36>] :xfs:xfs_ialloc+0xa0/0x536 > [<ffffffff883792d7>] :xfs:xfs_dir_ialloc+0x84/0x2d1 > [<ffffffff88376ccc>] :xfs:xfs_trans_reserve+0xdd/0x1b0 > [<ffffffff802a2618>] __link_path_walk+0xd2d/0xd4e > [<ffffffff8837e2e0>] :xfs:xfs_create+0x275/0x4d2 > [<ffffffff88387b51>] :xfs:xfs_vn_mknod+0x148/0x242 > [<ffffffff88387262>] :xfs:xfs_vn_permission+0x15/0x19 > [<ffffffff802a14a6>] vfs_create+0xcf/0x140 > [<ffffffff802a36b1>] open_namei+0x1a0/0x63c > [<ffffffff80297c7e>] do_filp_open+0x1c/0x38 > [<ffffffff80297969>] get_unused_fd_flags+0x72/0x120 > [<ffffffff80297ce0>] do_sys_open+0x46/0xc3 > [<ffffffff8020be2e>] system_call+0x7e/0x83 > > rm D ffffffff804297c0 0 7043 6820 > ffff810465985bd8 0000000000000082 0000000000000000 ffffffff88178043 > ffff810465985b68 ffff81047610a000 ffff8102764b6800 ffff81047610a250 > 00000000ffffffff ffffffff88159e20 0000000000000000 0000000000000000 > Call Trace: > [<ffffffff88178043>] :nfs:nfs_do_access+0x2b/0x31b > [<ffffffff80415c22>] __down_read+0x82/0x9a > [<ffffffff8837bb8c>] :xfs:xfs_access+0x18/0x3f > [<ffffffff88387262>] :xfs:xfs_vn_permission+0x15/0x19 > [<ffffffff8029fd91>] permission+0xb6/0x10b > [<ffffffff802a1a41>] __link_path_walk+0x156/0xd4e > [<ffffffff88183001>] :nfs:nfs_writepages_callback+0x0/0x21 > [<ffffffff802a2691>] link_path_walk+0x58/0xe0 > [<ffffffff80282a54>] __vma_link+0x42/0x4b > [<ffffffff802a2a01>] do_path_lookup+0x1a3/0x21b > [<ffffffff802a16ac>] getname+0x14c/0x1b3 > [<ffffffff802a324e>] __user_walk_fd+0x37/0x4c > [<ffffffff8029c307>] vfs_lstat_fd+0x18/0x47 > [<ffffffff80282a54>] __vma_link+0x42/0x4b > [<ffffffff8029c34f>] sys_newlstat+0x19/0x31 > [<ffffffff802a4ad2>] vfs_ioctl+0x243/0x25c > [<ffffffff8031315f>] __up_write+0x21/0x10e > [<ffffffff804162e9>] error_exit+0x0/0x51 > [<ffffffff8020be2e>] system_call+0x7e/0x83 -- Dave Chinner Principal Engineer SGI Australian Software Group -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
