Hi, I've encountered the the problem a few times now that directory listing in my home folder hung. The problem occurs when I shut down my test web-server which provides an nfs share mounted into a folder in my home directory. When an application tries to get the directory listing of my home folder it hangs until the server is online again. Umounting is not possible "device is busy...". The only way to get it fixed is to restart the system or bring the server back online. It's good that it's so fault tolerant and can restore the connection, but there should be a way to unmount the nfs share when the server is gone? Thanks, Stefan Kernel Messages: Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504018] ls D f5ea7ba0 0 27184 27093 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504023] f5d26370 00000086 00000002 f5ea7ba0 f5ea7ba8 00000000 cccccccc cccccccc Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504029] c04b0240 c04b3700 c04b3700 c04b3700 f5ea7ba4 f5d264d8 c206e700 0001ac86 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504034] 00000000 00000000 00000000 00000000 000000ff f5ea7be0 00000000 f5ea7be8 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504039] Call Trace: Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504068] [<f8a86999>] nfs_wait_schedule+0x19/0x20 [nfs] Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504086] [__wait_on_bit_lock+0x3d/0x70] __wait_on_bit_lock+0x3d/0x70 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504096] [<f8a86980>] nfs_wait_schedule+0x0/0x20 [nfs] Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504118] [<f8a86980>] nfs_wait_schedule+0x0/0x20 [nfs] Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504139] [nfs:out_of_line_wait_on_bit_lock+0x5b/0xe0] out_of_line_wait_on_bit_lock+0x5b/0x70 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504147] [<c0151cb0>] wake_bit_function+0x0/0x60 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504153] [<f8a86ac5>] __nfs_revalidate_inode+0x125/0x2a0 [nfs] Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504177] [nfs:kunmap_atomic+0x3f/0x29d0] kunmap_atomic+0x3f/0xb0 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504184] [get_page_from_freelist+0x2b3/0x480] get_page_from_freelist+0x2b3/0x480 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504184] [nfs:kunmap_atomic+0x3f/0x29d0] kunmap_atomic+0x3f/0xb0 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504184] [proc_alloc_inode+0x38/0x60] proc_alloc_inode+0x38/0x60 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504226] [get_page_from_freelist+0x2b3/0x480] get_page_from_freelist+0x2b3/0x480 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504232] [<f8a81921>] nfs_lookup_revalidate+0x361/0x3f0 [nfs] Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504258] [__alloc_pages_internal+0xb3/0x440] __alloc_pages_internal+0xb3/0x440 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504263] [sunrpc:dput +0x65/0x140] dput+0x65/0xd0 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504269] [alloc_inode +0x10e/0x1b0] alloc_inode+0x10e/0x1b0 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504274] [nfs:kunmap_atomic+0x3f/0x29d0] kunmap_atomic+0x3f/0xb0 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504280] [handle_mm_fault+0x5a5/0x7c0] handle_mm_fault+0x5a5/0x7c0 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504285] [proc_pident_lookup+0x7a/0xb0] proc_pident_lookup+0x7a/0xb0 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504289] [__d_lookup +0x8a/0x100] __d_lookup+0x8a/0x100 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.504296] [<f89b36c7>] rpcauth_lookup_credcache+0x77/0x1c0 [sunrpc] Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506000] [<f8a8264c>] nfs_do_access+0x21c/0x290 [nfs] Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506024] [<f89b3300>] rpcauth_lookupcred+0x60/0xb0 [sunrpc] Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506051] [<f89b31ad>] put_rpccred+0x3d/0xd0 [sunrpc] Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506076] [<f8a8277d>] nfs_permission+0xbd/0x160 [nfs] Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506097] [<f8a826c0>] nfs_permission+0x0/0x160 [nfs] Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506118] [permission +0x97/0x120] permission+0x97/0x120 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506124] [__link_path_walk+0x686/0xe50] __link_path_walk+0x686/0xe50 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506130] [nfs:copy_to_user+0x30/0x530] copy_to_user+0x30/0x60 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506136] [nfs:kunmap_atomic+0x3f/0x29d0] kunmap_atomic+0x3f/0xb0 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506143] [path_walk +0x47/0xa0] path_walk+0x47/0xa0 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506148] [do_path_lookup +0x72/0x1d0] do_path_lookup+0x72/0x1d0 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506151] [security_file_alloc+0xc/0x10] security_file_alloc+0xc/0x10 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506156] [get_empty_filp +0x5c/0x190] get_empty_filp+0x5c/0x190 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506183] [__path_lookup_intent_open+0x51/0xa0] __path_lookup_intent_open +0x51/0xa0 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506192] [path_lookup_open+0x20/0x30] path_lookup_open+0x20/0x30 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506198] [do_filp_open +0x7d/0x800] do_filp_open+0x7d/0x800 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506211] [get_unused_fd_flags+0x52/0xd0] get_unused_fd_flags+0x52/0xd0 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506217] [getname +0xaa/0xe0] getname+0xaa/0xe0 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506222] [do_sys_open +0x4c/0xe0] do_sys_open+0x4c/0xe0 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506228] [sys_open +0x2c/0x40] sys_open+0x2c/0x40 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506233] [sysenter_past_esp+0x78/0xb9] sysenter_past_esp+0x78/0xb9 Jun 28 22:28:32 stefan-ubuntu-vm kernel: [ 1128.506244] ======================= Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389708] bash D f5d69600 0 27261 25959 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389713] f5d25f80 00000086 00000000 f5d69600 00000000 f5db7960 00000000 c021aba3 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389719] c04b0240 c04b3700 c04b3700 c04b3700 f4f84cf0 f5d260e8 c206e700 00000010 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389724] 00000010 f5db7960 f4f84cf0 f5dd1be8 c0151ded f5dd1be0 00000000 f5dd1be8 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389729] Call Trace: Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389752] [blk_recount_segments+0x33/0x70] blk_recount_segments+0x33/0x70 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389769] [prepare_to_wait_exclusive+0x6d/0x70] prepare_to_wait_exclusive +0x6d/0x70 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389777] [<f8a86999>] nfs_wait_schedule+0x19/0x20 [nfs] Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389793] [__wait_on_bit_lock+0x3d/0x70] __wait_on_bit_lock+0x3d/0x70 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389800] [<f8a86980>] nfs_wait_schedule+0x0/0x20 [nfs] Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389825] [<f8a86980>] nfs_wait_schedule+0x0/0x20 [nfs] Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389846] [nfs:out_of_line_wait_on_bit_lock+0x5b/0xe0] out_of_line_wait_on_bit_lock+0x5b/0x70 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389853] [<c0151cb0>] wake_bit_function+0x0/0x60 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389859] [<f8a86ac5>] __nfs_revalidate_inode+0x125/0x2a0 [nfs] Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389882] [nfs:kunmap_atomic+0x3f/0x29d0] kunmap_atomic+0x3f/0xb0 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389889] [get_page_from_freelist+0x2b3/0x480] get_page_from_freelist+0x2b3/0x480 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389900] [__alloc_pages_internal+0xb3/0x440] __alloc_pages_internal+0xb3/0x440 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389903] [nfs:kunmap_atomic+0x3f/0x29d0] kunmap_atomic+0x3f/0xb0 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389943] [get_page_from_freelist+0x2b3/0x480] get_page_from_freelist+0x2b3/0x480 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389951] [<f8a81921>] nfs_lookup_revalidate+0x361/0x3f0 [nfs] Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389975] [snd_pcm:getnstimeofday+0x3c/0x9530] getnstimeofday+0x3c/0xf0 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389986] [task_tick_fair +0x51/0x80] task_tick_fair+0x51/0x80 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389991] [hrtimer_forward+0x104/0x150] hrtimer_forward+0x104/0x150 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.389998] [snd_pcm:getnstimeofday+0x3c/0x9530] getnstimeofday+0x3c/0xf0 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390003] [<f89b36c7>] rpcauth_lookup_credcache+0x77/0x1c0 [sunrpc] Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390031] [<f8a8264c>] nfs_do_access+0x21c/0x290 [nfs] Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390054] [<f89b3300>] rpcauth_lookupcred+0x60/0xb0 [sunrpc] Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390079] [<f89b31ad>] put_rpccred+0x3d/0xd0 [sunrpc] Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390103] [<f8a8277d>] nfs_permission+0xbd/0x160 [nfs] Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390124] [enqueue_hrtimer+0x7c/0x110] enqueue_hrtimer+0x7c/0x110 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390130] [<f8a826c0>] nfs_permission+0x0/0x160 [nfs] Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390151] [permission +0x97/0x120] permission+0x97/0x120 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390156] [__link_path_walk+0x686/0xe50] __link_path_walk+0x686/0xe50 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390163] [ktime_get +0x18/0x40] ktime_get+0x18/0x40 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390169] [nfs:rb_insert_color+0xb7/0xe0] rb_insert_color+0xb7/0xe0 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390176] [path_walk +0x47/0xa0] path_walk+0x47/0xa0 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390181] [do_path_lookup +0x72/0x1d0] do_path_lookup+0x72/0x1d0 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390185] [security_file_alloc+0xc/0x10] security_file_alloc+0xc/0x10 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390189] [get_empty_filp +0x5c/0x190] get_empty_filp+0x5c/0x190 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390198] [__path_lookup_intent_open+0x51/0xa0] __path_lookup_intent_open +0x51/0xa0 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390198] [path_lookup_open+0x20/0x30] path_lookup_open+0x20/0x30 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390226] [do_filp_open +0x7d/0x800] do_filp_open+0x7d/0x800 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390240] [get_unused_fd_flags+0x52/0xd0] get_unused_fd_flags+0x52/0xd0 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390245] [getname +0xaa/0xe0] getname+0xaa/0xe0 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390249] [do_sys_open +0x4c/0xe0] do_sys_open+0x4c/0xe0 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390253] [nfs:copy_to_user+0x30/0x530] copy_to_user+0x30/0x60 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390777] [sys_open +0x2c/0x40] sys_open+0x2c/0x40 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390782] [sysenter_past_esp+0x78/0xb9] sysenter_past_esp+0x78/0xb9 Jun 28 22:28:44 stefan-ubuntu-vm kernel: [ 1141.390791] ======================= -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
