I try to run "bzr status" on our couple hundred megabyte development branch on our new NFSv4 share. This causes Bazaar on client to halt and cause errors on latest Ubuntu 10.10 AMD64 kernel 2.6.35-27-generic. I wonder if this is the same bug and whether it was fixed yet on 2.6.35-27 kernels.
This message appears repeately (every 120sec) in the syslog:
Mar 14 17:25:46 hf kernel: [ 1080.078609] INFO: task bzr:2348 blocked for more than 120 seconds.
Mar 14 17:25:46 hf kernel: [ 1080.078611] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar 14 17:25:46 hf kernel: [ 1080.078614] bzr D 00000000ffffa30f 0 2348 2347 0x00000000
Mar 14 17:25:46 hf kernel: [ 1080.078618] ffff880341823c08 0000000000000086 ffff880300000000 0000000000015980
Mar 14 17:25:46 hf kernel: [ 1080.078623] ffff880341823fd8 0000000000015980 ffff880341823fd8 ffff880344e3db80
Mar 14 17:25:46 hf kernel: [ 1080.078626] 0000000000015980 0000000000015980 ffff880341823fd8 0000000000015980
Mar 14 17:25:46 hf kernel: [ 1080.078630] Call Trace:
Mar 14 17:25:46 hf kernel: [ 1080.078637] [<ffffffff81101c50>] ? sync_page+0x0/0x50
Mar 14 17:25:46 hf kernel: [ 1080.078641] [<ffffffff81589093>] io_schedule+0x73/0xc0
Mar 14 17:25:46 hf kernel: [ 1080.078644] [<ffffffff81101c8d>] sync_page+0x3d/0x50
Mar 14 17:25:46 hf kernel: [ 1080.078647] [<ffffffff8158996f>] __wait_on_bit+0x5f/0x90
Mar 14 17:25:46 hf kernel: [ 1080.078650] [<ffffffff81101e43>] wait_on_page_bit+0x73/0x80
Mar 14 17:25:46 hf kernel: [ 1080.078655] [<ffffffff8107faf0>] ? wake_bit_function+0x0/0x40
Mar 14 17:25:46 hf kernel: [ 1080.078659] [<ffffffff8110c605>] ? pagevec_lookup_tag+0x25/0x40
Mar 14 17:25:46 hf kernel: [ 1080.078662] [<ffffffff8110230d>] filemap_fdatawait_range+0x10d/0x1a0
Mar 14 17:25:46 hf kernel: [ 1080.078666] [<ffffffff811023cb>] filemap_fdatawait+0x2b/0x30
Mar 14 17:25:46 hf kernel: [ 1080.078669] [<ffffffff811026d4>] filemap_write_and_wait+0x44/0x50
Mar 14 17:25:46 hf kernel: [ 1080.078684] [<ffffffffa1802fec>] nfs_setattr+0x14c/0x160 [nfs]
Mar 14 17:25:46 hf kernel: [ 1080.078688] [<ffffffff8116c69b>] notify_change+0x16b/0x310
Mar 14 17:25:46 hf kernel: [ 1080.078692] [<ffffffff81152694>] do_truncate+0x64/0xa0
Mar 14 17:25:46 hf kernel: [ 1080.078695] [<ffffffff8115292b>] T.784+0xeb/0x110
Mar 14 17:25:46 hf kernel: [ 1080.078698] [<ffffffff8115295e>] sys_ftruncate+0xe/0x10
Mar 14 17:25:46 hf kernel: [ 1080.078703] [<ffffffff8100a0f2>] system_call_fastpath+0x16/0x1b
I try to run "bzr status" on our couple hundred megabyte development branch on our new NFSv4 share. This causes Bazaar on client to halt and cause errors on latest Ubuntu 10.10 AMD64 kernel 2.6.35-27-generic. I wonder if this is the same bug and whether it was fixed yet on 2.6.35-27 kernels.
This message appears repeately (every 120sec) in the syslog: kernel/ hung_task_ timeout_ secs" disables this message. c50>] ? sync_page+0x0/0x50 093>] io_schedule+ 0x73/0xc0 c8d>] sync_page+0x3d/0x50 96f>] __wait_ on_bit+ 0x5f/0x90 e43>] wait_on_ page_bit+ 0x73/0x80 af0>] ? wake_bit_ function+ 0x0/0x40 605>] ? pagevec_ lookup_ tag+0x25/ 0x40 30d>] filemap_ fdatawait_ range+0x10d/ 0x1a0 3cb>] filemap_ fdatawait+ 0x2b/0x30 6d4>] filemap_ write_and_ wait+0x44/ 0x50 fec>] nfs_setattr+ 0x14c/0x160 [nfs] 69b>] notify_ change+ 0x16b/0x310 694>] do_truncate+ 0x64/0xa0 92b>] T.784+0xeb/0x110 95e>] sys_ftruncate+ 0xe/0x10 0f2>] system_ call_fastpath+ 0x16/0x1b
Mar 14 17:25:46 hf kernel: [ 1080.078609] INFO: task bzr:2348 blocked for more than 120 seconds.
Mar 14 17:25:46 hf kernel: [ 1080.078611] "echo 0 > /proc/sys/
Mar 14 17:25:46 hf kernel: [ 1080.078614] bzr D 00000000ffffa30f 0 2348 2347 0x00000000
Mar 14 17:25:46 hf kernel: [ 1080.078618] ffff880341823c08 0000000000000086 ffff880300000000 0000000000015980
Mar 14 17:25:46 hf kernel: [ 1080.078623] ffff880341823fd8 0000000000015980 ffff880341823fd8 ffff880344e3db80
Mar 14 17:25:46 hf kernel: [ 1080.078626] 0000000000015980 0000000000015980 ffff880341823fd8 0000000000015980
Mar 14 17:25:46 hf kernel: [ 1080.078630] Call Trace:
Mar 14 17:25:46 hf kernel: [ 1080.078637] [<ffffffff81101
Mar 14 17:25:46 hf kernel: [ 1080.078641] [<ffffffff81589
Mar 14 17:25:46 hf kernel: [ 1080.078644] [<ffffffff81101
Mar 14 17:25:46 hf kernel: [ 1080.078647] [<ffffffff81589
Mar 14 17:25:46 hf kernel: [ 1080.078650] [<ffffffff81101
Mar 14 17:25:46 hf kernel: [ 1080.078655] [<ffffffff8107f
Mar 14 17:25:46 hf kernel: [ 1080.078659] [<ffffffff8110c
Mar 14 17:25:46 hf kernel: [ 1080.078662] [<ffffffff81102
Mar 14 17:25:46 hf kernel: [ 1080.078666] [<ffffffff81102
Mar 14 17:25:46 hf kernel: [ 1080.078669] [<ffffffff81102
Mar 14 17:25:46 hf kernel: [ 1080.078684] [<ffffffffa1802
Mar 14 17:25:46 hf kernel: [ 1080.078688] [<ffffffff8116c
Mar 14 17:25:46 hf kernel: [ 1080.078692] [<ffffffff81152
Mar 14 17:25:46 hf kernel: [ 1080.078695] [<ffffffff81152
Mar 14 17:25:46 hf kernel: [ 1080.078698] [<ffffffff81152
Mar 14 17:25:46 hf kernel: [ 1080.078703] [<ffffffff8100a