Comment 10 for bug 495322

i believe i'm seeing the same issue on Lucid while running rsync

Linux box05 2.6.32-23-server #37-Ubuntu SMP Fri Jun 11 09:11:11 UTC 2010 x86_64 GNU/Linux

 BUG: unable to handle kernel paging request at 0000000000001f00
 IP: [<ffffffff81039719>] __ticket_spin_lock+0x9/0x20
 PGD 119669067 PUD 11b228067 PMD 0
 Oops: 0002 [#1] SMP
 last sysfs file: /sys/devices/pci0000:00/0000:00:1c.7/0000:03:00.0/local_cpus
 CPU 1
 Modules linked in: ppdev nfsd exportfs nfs lockd nfs_acl autofs4 auth_rpcgss snd_hda_codec_realtek max6650 coretemp snd_hda_intel nbd snd_hda_codec snd_hwdep snd_pcm sunrpc joydev snd_timer snd psmouse soundcore serio_raw snd_page_alloc nvidia(P) lp parport raid10 raid456 async_pq async_xor xor async_memcpy async_raid6_recov pata_marvell usbhid hid raid6_pq async_tx raid1 raid0 ahci e1000e multipath linear
 Pid: 18736, comm: rsync Tainted: P 2.6.32-23-server #37-Ubuntu
 RIP: 0010:[<ffffffff81039719>] [<ffffffff81039719>] __ticket_spin_lock+0x9/0x20
 RSP: 0018:ffff8801136d7988 EFLAGS: 00010006
 RAX: 0000000000000100 RBX: 00000000000018c0 RCX: 00000000000000c0
 RDX: 000000000000003f RSI: 000000000000000e RDI: 0000000000001f00
 RBP: ffff8801136d7988 R08: 0000000000000000 R09: ffff8801178186b0
 R10: ffff88011ae2cf00 R11: dead000000200200 R12: ffffea000274f058
 R13: 0000000000000660 R14: 0000000000000002 R15: ffff880005851be0
 FS: 00007f5ea6d3a700(0000) GS:ffff880005840000(0000) knlGS:0000000000000000
 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
 CR2: 0000000000001f00 CR3: 00000001179dc000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
 Process rsync (pid: 18736, threadinfo ffff8801136d6000, task ffff8801078a5bc0)
 Stack:
  ffff8801136d7998 ffffffff81559c25 ffff8801136d7a18 ffffffff810ff29a
 <0> ffff8801136d79e8 00000000000000d1 00000003136d7af8 0000000000000001
 <0> 0000000202dd17f8 0000000000000003 00000000136d79e8 00000000000000d3
 Call Trace:
  [<ffffffff81559c25>] _spin_lock_irq+0x15/0x20
  [<ffffffff810ff29a>] ____pagevec_lru_add+0x18a/0x200
  [<ffffffff810ff368>] __lru_cache_add+0x58/0x70
  [<ffffffff810f4808>] add_to_page_cache_lru+0x68/0x80
  [<ffffffff811777b0>] mpage_readpages+0xd0/0x150
  [<ffffffff811e0330>] ? ext4_get_block+0x0/0x120
  [<ffffffff811e0330>] ? ext4_get_block+0x0/0x120
  [<ffffffff810fa819>] ? __alloc_pages_nodemask+0xd9/0x180
  [<ffffffff811dbf0d>] ext4_readpages+0x1d/0x20
  [<ffffffff810fe27b>] __do_page_cache_readahead+0x13b/0x210
  [<ffffffff810fe371>] ra_submit+0x21/0x30
  [<ffffffff810fe725>] ondemand_readahead+0x115/0x240
  [<ffffffff810fe8e0>] page_cache_async_readahead+0x90/0xd0
  [<ffffffff810f5451>] T.805+0x1e1/0x400
  [<ffffffff810f5726>] generic_file_aio_read+0xb6/0x1d0
  [<ffffffff8114445a>] do_sync_read+0xfa/0x140
  [<ffffffff81085090>] ? autoremove_wake_function+0x0/0x40
  [<ffffffff8108f819>] ? ktime_get_ts+0xa9/0xe0
  [<ffffffff81252096>] ? security_file_permission+0x16/0x20
  [<ffffffff81144d45>] vfs_read+0xb5/0x1a0
  [<ffffffff81144f01>] sys_read+0x51/0x80
  [<ffffffff810131b2>] system_call_fastpath+0x16/0x1b
 Code: 00 00 48 c7 c2 1e 95 03 81 48 c7 c1 21 95 03 81 e9 dd fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 55 b8 00 01 00 00 48 89 e5 <f0> 66 0f c1 07 38 e0 74 06 f3 90 8a 07 eb f6 c9 c3 66 0f 1f 44
 RIP [<ffffffff81039719>] __ticket_spin_lock+0x9/0x20
  RSP <ffff8801136d7988>
 CR2: 0000000000001f00
 ---[ end trace 4d42d7d24e90bfc6 ]---
 BUG: unable to handle kernel paging request at 0000000000001f00
 IP: [<ffffffff81039719>] __ticket_spin_lock+0x9/0x20
 PGD 119669067 PUD 11b228067 PMD 0
 Oops: 0002 [#2] SMP
 last sysfs file: /sys/devices/pci0000:00/0000:00:1c.7/0000:03:00.0/local_cpus
 CPU 1
 Modules linked in: ppdev nfsd exportfs nfs lockd nfs_acl autofs4 auth_rpcgss snd_hda_codec_realtek max6650 coretemp snd_hda_intel nbd snd_hda_codec snd_hwdep snd_pcm sunrpc joydev snd_timer snd psmouse soundcore serio_raw snd_page_alloc nvidia(P) lp parport raid10 raid456 async_pq async_xor xor async_memcpy async_raid6_recov pata_marvell usbhid hid raid6_pq async_tx raid1 raid0 ahci e1000e multipath linear
 Pid: 18736, comm: rsync Tainted: P D 2.6.32-23-server #37-Ubuntu
 RIP: 0010:[<ffffffff81039719>] [<ffffffff81039719>] __ticket_spin_lock+0x9/0x20
 RSP: 0018:ffff8801136d75e8 EFLAGS: 00010002
 RAX: 0000000000000100 RBX: 00000000000018c0 RCX: 00000000000000c0
 RDX: 000000000000003f RSI: 000000000000000e RDI: 0000000000001f00
 RBP: ffff8801136d75e8 R08: 0000000000000000 R09: 0000000000000000
 R10: 0000000000000005 R11: 0000000000000000 R12: ffffea000274f058
 R13: 0000000000000660 R14: 0000000000000002 R15: ffff880005851be0
 FS: 0000000000000000(0000) GS:ffff880005840000(0000) knlGS:0000000000000000
 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
 CR2: 0000000000001f00 CR3: 00000001179dc000 CR4: 00000000000006e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
 Process rsync (pid: 18736, threadinfo ffff8801136d6000, task ffff8801078a5bc0)
 Stack:
  ffff8801136d75f8 ffffffff81559c25 ffff8801136d7678 ffffffff810ff29a
 <0> 0000000000000082 00000000000000d1 00000003136d7668 0000000000000001
 <0> 0000000200000086 0000000000000003 00000000136d7658 00000000000000d3
 Call Trace:
  [<ffffffff81559c25>] _spin_lock_irq+0x15/0x20
  [<ffffffff810ff29a>] ____pagevec_lru_add+0x18a/0x200
  [<ffffffff810ff5b3>] lru_add_drain+0x93/0xa0
  [<ffffffff81117ed4>] exit_mmap+0x64/0x190
  [<ffffffff81064bf2>] mmput+0x42/0x110
  [<ffffffff8106b072>] exit_mm+0x112/0x150
  [<ffffffff81559c25>] ? _spin_lock_irq+0x15/0x20
  [<ffffffff8106b2e5>] do_exit+0x125/0x380
  [<ffffffff8155ae30>] oops_end+0xb0/0xf0
  [<ffffffff81040993>] no_context+0xf3/0x190
  [<ffffffff81040b55>] __bad_area_nosemaphore+0x125/0x1e0
  [<ffffffff81040c7e>] bad_area+0x4e/0x60
  [<ffffffff8155ca61>] do_page_fault+0x331/0x3b0
  [<ffffffff8155a1a5>] page_fault+0x25/0x30
  [<ffffffff81039719>] ? __ticket_spin_lock+0x9/0x20
  [<ffffffff8113ccc1>] ? mem_cgroup_add_lru_list+0x21/0xa0
  [<ffffffff81559c25>] _spin_lock_irq+0x15/0x20
  [<ffffffff810ff29a>] ____pagevec_lru_add+0x18a/0x200
  [<ffffffff810ff368>] __lru_cache_add+0x58/0x70
  [<ffffffff810f4808>] add_to_page_cache_lru+0x68/0x80
  [<ffffffff811777b0>] mpage_readpages+0xd0/0x150
  [<ffffffff811e0330>] ? ext4_get_block+0x0/0x120
  [<ffffffff811e0330>] ? ext4_get_block+0x0/0x120
  [<ffffffff810fa819>] ? __alloc_pages_nodemask+0xd9/0x180
  [<ffffffff811dbf0d>] ext4_readpages+0x1d/0x20
  [<ffffffff810fe27b>] __do_page_cache_readahead+0x13b/0x210
  [<ffffffff810fe371>] ra_submit+0x21/0x30
  [<ffffffff810fe725>] ondemand_readahead+0x115Jul 12 11:34:07 box05 kernel: imklog 4.2.0, log source = /proc/kmsg started.