Public bug reported:
I was just copying files off of nfs mounted partition and got a soft
lockup. The machine I'm accessing is 8.04.1 and the lockup happens on
8.10 rc.
[ 179.319982] BUG: soft lockup - CPU#0 stuck for 61s! [cp:4307]
[ 179.320003] Modules linked in: nfsd auth_rpcgss exportfs nfs lockd nfs_acl
sunrpc iptable_filter ip_tables x_tables parport_pc lp parport loop evdev
psmouse serio_raw button intel_agp agpgart pcspkr shpchp pci_hotplug iTCO_wdt
iTCO_vendor_support xfs usbhid hid sd_mod crc_t10dif sr_mod cdrom sg pata_acpi
ata_piix ata_generic ehci_hcd libata skge uhci_hcd scsi_mod dock usbcore
thermal processor fan fbcon tileblit font bitblit softcursor fuse
[ 179.320003]
[ 179.320003] Pid: 4307, comm: cp Not tainted (2.6.27-7-server #1)
[ 179.320003] EIP: 0060:[<c018bc67>] EFLAGS: 00000246 CPU: 0
[ 179.320003] EIP is at find_get_pages+0x67/0x110
[ 179.320003] EAX: ce42fb50 EBX: c11c9230 ECX: f5c439b0 EDX: 00000000
[ 179.320003] ESI: c11c9018 EDI: f5c439b0 EBP: f5c43964 ESP: f5c43934
[ 179.320003] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[ 179.320003] CR0: 8005003b CR2: 090fb008 CR3: 35cc8000 CR4: 000006b0
[ 179.320003] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 179.320003] DR6: ffff0ff0 DR7: 00000400
[ 179.320003] [<c0194c47>] pagevec_lookup+0x27/0x40
[ 179.320003] [<f8a8bdfc>] xfs_cluster_write+0x5c/0x110 [xfs]
[ 179.320003] [<f8a8c528>] xfs_page_state_convert+0x678/0x820 [xfs]
[ 179.320003] [<f8a8c804>] xfs_vm_writepage+0x64/0x100 [xfs]
[ 179.320003] [<c0196b72>] pageout+0xe2/0x220
[ 179.320003] [<c0198f26>] ? __dec_zone_state+0x16/0x90
[ 179.320003] [<c0197336>] shrink_page_list+0x296/0x450
[ 179.320003] [<c0197673>] shrink_inactive_list+0x183/0x410
[ 179.320003] [<c0193294>] ? throttle_vm_writeout+0x34/0x90
[ 179.320003] [<c019796a>] shrink_zone+0x6a/0x130
[ 179.320003] [<c0197ac1>] shrink_zones+0x91/0x120
[ 179.320003] [<c0197bdc>] do_try_to_free_pages+0x8c/0x270
[ 179.320003] [<c0197ec1>] try_to_free_pages+0x71/0x80
[ 179.320003] [<c0196f20>] ? isolate_pages_global+0x0/0x60
[ 179.320003] [<c0191b6e>] __alloc_pages_internal+0x1ce/0x460
[ 179.320003] [<c01e04c9>] ? __block_commit_write+0x79/0xb0
[ 179.320003] [<c019462a>] __do_page_cache_readahead+0xda/0x1e0
[ 179.320003] [<c01949ee>] ondemand_readahead+0x9e/0x140
[ 179.320003] [<c0194b4d>] page_cache_sync_readahead+0x2d/0x40
[ 179.320003] [<c018db01>] do_generic_file_read+0x241/0x4d0
[ 179.320003] [<c018de33>] generic_file_aio_read+0xa3/0x1d0
[ 179.320003] [<c018b8d0>] ? file_read_actor+0x0/0xe0
[ 179.320003] [<f8c15ac9>] nfs_file_read+0xe9/0x140 [nfs]
[ 179.320003] [<c01bab09>] do_sync_read+0xd9/0x120
[ 179.320003] [<c023d994>] ? aa_file_permission+0x14/0xc0
[ 179.320003] [<c014efa0>] ? autoremove_wake_function+0x0/0x50
[ 179.320003] [<c021be74>] ? security_file_permission+0x14/0x20
[ 179.320003] [<c01bab9d>] ? rw_verify_area+0x4d/0xc0
[ 179.320003] [<c01ba6ab>] ? fsnotify_modify+0x6b/0x80
[ 179.320003] [<c01bb2bd>] vfs_read+0x9d/0x110
[ 179.320003] [<c01baa30>] ? do_sync_read+0x0/0x120
[ 179.320003] [<c01bb402>] sys_read+0x42/0x70
[ 179.320003] [<c0109f03>] sysenter_do_call+0x12/0x2f
[ 179.320003] =======================
** Affects: ubuntu
Importance: Undecided
Status: New
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NFS file access causing soft lockup
https://bugs.launchpad.net/bugs/289158
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