I was able to reproduce the problem:

if I copy several GBs of small files over nfs to the machine it
eventually hangs kswapd eating up all CPU of one core.

This machine is not under any kind of heavy workload, it is just using
its RAM for caching.

Let me know if you need any more info.

Giuseppe
--
Giuseppe Lavagetto, Ph.d.
Systems Manager and Developer - Gruppo Immobiliare.it s.r.l.
[162268.160704] BUG: soft lockup - CPU#0 stuck for 61s! [kswapd0:207]
[162268.160732] Modules linked in: nfs lockd fscache nfs_acl auth_rpcgss sunrpc drbd ipmi_si mpt2sas scsi_transport_sas mptctl mptbase ipmi_devintf ipmi_msghandler dell_rbu lru_cache cn bonding ext3 jbd mbcache loop ixgbe dca psmouse dcdbas processor power_meter button serio_raw snd_pcm snd_timer snd soundcore snd_page_alloc pcspkr evdev xfs exportfs sg sr_mod cdrom ata_generic ses usbhid hid uhci_hcd sd_mod crc_t10dif enclosure ata_piix megaraid_sas thermal libata ehci_hcd scsi_mod usbcore nls_base bnx2 thermal_sys [last unloaded: drbd]
[162268.160755] CPU 0:
[162268.160756] Modules linked in: nfs lockd fscache nfs_acl auth_rpcgss sunrpc drbd ipmi_si mpt2sas scsi_transport_sas mptctl mptbase ipmi_devintf ipmi_msghandler dell_rbu lru_cache cn bonding ext3 jbd mbcache loop ixgbe dca psmouse dcdbas processor power_meter button serio_raw snd_pcm snd_timer snd soundcore snd_page_alloc pcspkr evdev xfs exportfs sg sr_mod cdrom ata_generic ses usbhid hid uhci_hcd sd_mod crc_t10dif enclosure ata_piix megaraid_sas thermal libata ehci_hcd scsi_mod usbcore nls_base bnx2 thermal_sys [last unloaded: drbd]
[162268.160779] Pid: 207, comm: kswapd0 Not tainted 2.6.32-5-amd64 #1 PowerEdge R710
[162268.160780] RIP: 0010:[<ffffffff810b3ef9>] [<ffffffff810b3ef9>] find_get_pages+0x3f/0xbb
[162268.160785] RSP: 0018:ffff88062e7adbc0 EFLAGS: 00000246
[162268.160786] RAX: ffffffffffffffff RBX: ffff88062e7adc50 RCX: 0000000000000000
[162268.160788] RDX: 0000000000000040 RSI: ffffea0006ac7e78 RDI: ffffea0006ac7e70
[162268.160789] RBP: ffffffff8101166e R08: ffff88062e7adb80 R09: 0000000000000001
[162268.160791] R10: 0000000000000040 R11: ffff88032a7ecd08 R12: ffff88062e7adc50
[162268.160793] R13: 0000000000000000 R14: ffff880224131300 R15: 0000000000000001
[162268.160794] FS: 0000000000000000(0000) GS:ffff88033ac00000(0000) knlGS:0000000000000000
[162268.160796] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[162268.160798] CR2: 0000000000b45388 CR3: 0000000001001000 CR4: 00000000000006f0
[162268.160799] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[162268.160801] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[162268.160802] Call Trace:
[162268.160805] [<ffffffff810bc034>] ? pagevec_lookup+0x17/0x1e
[162268.160808] [<ffffffff810bcdf1>] ? invalidate_mapping_pages+0xb9/0xdb
[162268.160810] [<ffffffff81100573>] ? shrink_icache_memory+0xfc/0x228
[162268.160813] [<ffffffff810bf3f5>] ? shrink_slab+0xe0/0x153
[162268.160815] [<ffffffff810bfc98>] ? kswapd+0x4d9/0x686
[162268.160818] [<ffffffff810bd30f>] ? isolate_pages_global+0x0/0x20f
[162268.160820] [<ffffffff81064e96>] ? autoremove_wake_function+0x0/0x2e
[162268.160822] [<ffffffff8103aa56>] ? __wake_up_common+0x44/0x72
[162268.160825] [<ffffffff810bf7bf>] ? kswapd+0x0/0x686
[162268.160826] [<ffffffff81064bc9>] ? kthread+0x79/0x81
[162268.160829] [<ffffffff81011baa>] ? child_rip+0xa/0x20
[162268.160831] [<ffffffff81064b50>] ? kthread+0x0/0x81
[162268.160833] [<ffffffff81011ba0>] ? child_rip+0x0/0x20

# cat vmallocinfo
0xffffc90000000000-0xffffc90000002000 8192 hpet_enable+0x2f/0x2a5 phys=fed00000 ioremap
0xffffc90000003000-0xffffc90002004000 33558528 alloc_large_system_hash+0x15c/0x219 pages=8192 vmalloc vpages N0=4096 N1=4096
0xffffc90002005000-0xffffc90002016000 69632 alloc_large_system_hash+0x15c/0x219 pages=16 vmalloc N0=8 N1=8
0xffffc90002017000-0xffffc90003018000 16781312 alloc_large_system_hash+0x15c/0x219 pages=4096 vmalloc vpages N0=2048 N1=2048
0xffffc90003019000-0xffffc90003022000 36864 alloc_large_system_hash+0x15c/0x219 pages=8 vmalloc N0=4 N1=4
0xffffc90003024000-0xffffc90003026000 8192 acpi_tb_verify_table+0x21/0x4f phys=cf3b6000 ioremap
0xffffc90003028000-0xffffc9000302d000 20480 acpi_tb_verify_table+0x21/0x4f phys=cf38f000 ioremap
0xffffc9000302e000-0xffffc90003030000 8192 acpi_tb_verify_table+0x21/0x4f phys=cf3b3000 ioremap
0xffffc90003030000-0xffffc90003038000 32768 acpi_tb_verify_table+0x21/0x4f phys=cf3b7000 ioremap
0xffffc9000303a000-0xffffc9000303c000 8192 acpi_ex_system_memory_space_handler+0xe4/0x1d8 phys=fed00000 ioremap
0xffffc9000303e000-0xffffc90003040000 8192 acpi_tb_verify_table+0x21/0x4f phys=cf3b3000 ioremap
0xffffc90003040000-0xffffc90003043000 12288 acpi_tb_verify_table+0x21/0x4f phys=cf3b3000 ioremap
0xffffc90003044000-0xffffc90003046000 8192 acpi_tb_verify_table+0x21/0x4f phys=cf3b3000 ioremap
0xffffc90003048000-0xffffc9000304a000 8192 acpi_tb_verify_table+0x21/0x4f phys=cf3b3000 ioremap
0xffffc9000304c000-0xffffc9000304e000 8192 acpi_tb_verify_table+0x21/0x4f phys=cf3b3000 ioremap
0xffffc90003050000-0xffffc90003052000 8192 acpi_tb_verify_table+0x21/0x4f phys=cf3b3000 ioremap
0xffffc90003054000-0xffffc90003056000 8192 acpi_tb_verify_table+0x21/0x4f phys=cf3b3000 ioremap
0xffffc90003058000-0xffffc9000305b000 12288 acpi_tb_verify_table+0x21/0x4f phys=cf392000 ioremap
0xffffc9000305c000-0xffffc9000305e000 8192 acpi_tb_verify_table+0x21/0x4f phys=cf393000 ioremap
0xffffc90003060000-0xffffc90003062000 8192 acpi_tb_verify_table+0x21/0x4f phys=cf392000 ioremap
0xffffc90003064000-0xffffc90003066000 8192 acpi_tb_verify_table+0x21/0x4f phys=cf392000 ioremap
0xffffc90003068000-0xffffc9000306a000 8192 acpi_tb_verify_table+0x21/0x4f phys=cf3b3000 ioremap
0xffffc9000306c000-0xffffc9000306e000 8192 acpi_tb_verify_table+0x21/0x4f phys=cf3b3000 ioremap
0xffffc9000306f000-0xffffc90003072000 12288 alloc_large_system_hash+0x15c/0x219 pages=2 vmalloc N0=1 N1=1
0xffffc90003073000-0xffffc90003078000 20480 alloc_large_system_hash+0x15c/0x219 pages=4 vmalloc N0=2 N1=2
0xffffc90003079000-0xffffc9000307e000 20480 tcp_init+0x146/0x351 pages=4 vmalloc N0=2 N1=2
0xffffc90003080000-0xffffc90013081000 268439552 pci_mmcfg_arch_init+0xa5/0x137 phys=e0000000 ioremap
0xffffc90013082000-0xffffc90013483000 4198400 alloc_large_system_hash+0x15c/0x219 pages=1024 vmalloc vpages N0=512 N1=512
0xffffc90013484000-0xffffc90013c85000 8392704 alloc_large_system_hash+0x15c/0x219 pages=2048 vmalloc vpages N0=1024 N1=1024
0xffffc90013c86000-0xffffc90013d87000 1052672 alloc_large_system_hash+0x15c/0x219 pages=256 vmalloc N0=128 N1=128
0xffffc90013d88000-0xffffc90013d8a000 8192 init_vdso_vars+0xe6/0x218
0xffffc90013d8b000-0xffffc90013d8e000 12288 firmware_loading_store+0x102/0x1bf
0xffffc90013d8f000-0xffffc90013d92000 12288 pcpu_mem_alloc+0x20/0x3b pages=2 vmalloc N0=1 N1=1
0xffffc90013d93000-0xffffc90013dac000 102400 firmware_loading_store+0x102/0x1bf
0xffffc90013dad000-0xffffc90013db0000 12288 firmware_loading_store+0x102/0x1bf
0xffffc90013db1000-0xffffc90013db3000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013db3000-0xffffc90013db6000 12288 firmware_loading_store+0x102/0x1bf
0xffffc90013db7000-0xffffc90013dba000 12288 firmware_loading_store+0x102/0x1bf
0xffffc90013dbc000-0xffffc90013dbe000 8192 usb_hcd_pci_probe+0x12f/0x285 [usbcore] phys=de0fe000 ioremap
0xffffc90013dc0000-0xffffc90013dd4000 81920 bnx2_init_one+0x237/0xf15 [bnx2] phys=da000000 ioremap
0xffffc90013dd6000-0xffffc90013dd8000 8192 usb_hcd_pci_probe+0x12f/0x285 [usbcore] phys=de0ff000 ioremap
0xffffc90013dda000-0xffffc90013ddc000 8192 pci_enable_msix+0x1d1/0x3f2 phys=de3f8000 ioremap
0xffffc90013ddd000-0xffffc90013ddf000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013de0000-0xffffc90013df4000 81920 bnx2_init_one+0x237/0xf15 [bnx2] phys=d6000000 ioremap
0xffffc90013df5000-0xffffc90013e0e000 102400 firmware_loading_store+0x102/0x1bf
0xffffc90013e0f000-0xffffc90013e11000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013e12000-0xffffc90013e14000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013e15000-0xffffc90013e17000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013e18000-0xffffc90013e1a000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013e1b000-0xffffc90013e1d000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013e1e000-0xffffc90013e20000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013e20000-0xffffc90013e34000 81920 bnx2_init_one+0x237/0xf15 [bnx2] phys=dc000000 ioremap
0xffffc90013e35000-0xffffc90013e4e000 102400 firmware_loading_store+0x102/0x1bf
0xffffc90013e50000-0xffffc90013e69000 102400 firmware_loading_store+0x102/0x1bf
0xffffc90013e6a000-0xffffc90013e6c000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013e6d000-0xffffc90013e6f000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013e70000-0xffffc90013e72000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013e73000-0xffffc90013e75000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013e76000-0xffffc90013e78000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013e78000-0xffffc90013e7b000 12288 megasas_probe_one+0x34c/0xb7b [megaraid_sas] phys=de1bc000 ioremap
0xffffc90013e7c000-0xffffc90013e7e000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013e80000-0xffffc90013e94000 81920 bnx2_init_one+0x237/0xf15 [bnx2] phys=d8000000 ioremap
0xffffc90013e95000-0xffffc90013e97000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013e98000-0xffffc90013e9a000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013e9b000-0xffffc90013e9d000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013e9e000-0xffffc90013ea0000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ea1000-0xffffc90013ea3000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ea4000-0xffffc90013ea6000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ea7000-0xffffc90013ea9000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013eaa000-0xffffc90013eac000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ead000-0xffffc90013eaf000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013eb0000-0xffffc90013eb2000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013eb4000-0xffffc90013eb6000 8192 pci_enable_msix+0x1d1/0x3f2 phys=de3fc000 ioremap
0xffffc90013eb7000-0xffffc90013eb9000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013eba000-0xffffc90013ebc000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ebd000-0xffffc90013ebf000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ec0000-0xffffc90013ec2000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ec3000-0xffffc90013ec5000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ec6000-0xffffc90013ec8000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ec9000-0xffffc90013ecb000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ecc000-0xffffc90013ece000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ecf000-0xffffc90013ed1000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ed2000-0xffffc90013ed4000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ed5000-0xffffc90013ed7000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ed8000-0xffffc90013eda000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013edb000-0xffffc90013edd000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ede000-0xffffc90013ee0000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ee1000-0xffffc90013ee3000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ee4000-0xffffc90013ee6000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ee7000-0xffffc90013ee9000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013eea000-0xffffc90013eec000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013eed000-0xffffc90013eef000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ef0000-0xffffc90013ef2000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ef3000-0xffffc90013ef5000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ef6000-0xffffc90013ef8000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013ef9000-0xffffc90013efb000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013efc000-0xffffc90013efe000 8192 ixgbe_init_interrupt_scheme+0x201/0x1210 [ixgbe] pages=1 vmalloc N1=1
0xffffc90013eff000-0xffffc90013f03000 16384 sys_swapon+0x457/0xa8b pages=3 vmalloc N1=3
0xffffc90013f04000-0xffffc90013f06000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N1=1
0xffffc90013f07000-0xffffc90013f09000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N1=1
0xffffc90013f0a000-0xffffc90013f0c000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N1=1
0xffffc90013f0d000-0xffffc90013f0f000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N1=1
0xffffc90013f10000-0xffffc90013f12000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N1=1
0xffffc90013f13000-0xffffc90013f15000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N1=1
0xffffc90013f16000-0xffffc90013f18000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N1=1
0xffffc90013f19000-0xffffc90013f1b000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N1=1
0xffffc90013f1c000-0xffffc90013f1e000 8192 pci_enable_msix+0x1d1/0x3f2 phys=d800c000 ioremap
0xffffc90013f1f000-0xffffc90013f21000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f22000-0xffffc90013f24000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f25000-0xffffc90013f27000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f28000-0xffffc90013f2a000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f2b000-0xffffc90013f2d000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f2e000-0xffffc90013f30000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f31000-0xffffc90013f33000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f34000-0xffffc90013f36000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f38000-0xffffc90013f3a000 8192 pci_enable_msix+0x1d1/0x3f2 phys=da00c000 ioremap
0xffffc90013f3b000-0xffffc90013f3d000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f3e000-0xffffc90013f40000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f41000-0xffffc90013f43000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f44000-0xffffc90013f46000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f47000-0xffffc90013f49000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f4a000-0xffffc90013f4c000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f4d000-0xffffc90013f4f000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f50000-0xffffc90013f52000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f54000-0xffffc90013f56000 8192 pci_enable_msix+0x1d1/0x3f2 phys=dc00c000 ioremap
0xffffc90013f57000-0xffffc90013f59000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013f5a000-0xffffc90013f5c000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013fae000-0xffffc90013fb7000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90013fb8000-0xffffc90013fc1000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90013fc2000-0xffffc90013fcb000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90013fcc000-0xffffc90013fd5000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90013fd6000-0xffffc90013fdf000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90013fe0000-0xffffc90013fe9000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90013fea000-0xffffc90013ff3000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90013ff4000-0xffffc90013ff6000 8192 pci_enable_msix+0x1d1/0x3f2 phys=d600c000 ioremap
0xffffc90013ff7000-0xffffc90013ff9000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013ffa000-0xffffc90013ffc000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90013ffc000-0xffffc90014005000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90014006000-0xffffc9001400f000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90014010000-0xffffc90014019000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc9001401a000-0xffffc90014023000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90014024000-0xffffc9001402d000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc9001402e000-0xffffc90014037000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90014038000-0xffffc90014041000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90014042000-0xffffc9001404b000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc9001404c000-0xffffc90014055000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90014056000-0xffffc90014058000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90014059000-0xffffc9001405b000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc9001405c000-0xffffc9001405e000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc9001405f000-0xffffc90014061000 8192 bnx2_alloc_mem+0x152/0x331 [bnx2] pages=1 vmalloc N0=1
0xffffc90014062000-0xffffc90014069000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc9001406a000-0xffffc90014073000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90014074000-0xffffc9001407d000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90014080000-0xffffc90014281000 2101248 ixgbe_probe+0x261/0x10f8 [ixgbe] phys=de600000 ioremap
0xffffc90014282000-0xffffc9001487f000 6279168 sys_swapon+0x457/0xa8b pages=1532 vmalloc vpages N1=1532
0xffffc90014880000-0xffffc90014887000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014888000-0xffffc9001488f000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc90014890000-0xffffc90014897000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014898000-0xffffc9001489f000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc900148a0000-0xffffc900148a7000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc900148a8000-0xffffc900148af000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc900148b0000-0xffffc900148b7000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc900148b8000-0xffffc900148bf000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc900148c0000-0xffffc900148c7000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc900148c8000-0xffffc900148cf000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc900148d0000-0xffffc900148d7000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc900148d8000-0xffffc900148df000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc900148e0000-0xffffc900148e7000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc900148e8000-0xffffc900148ef000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc900148f0000-0xffffc900148f7000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc900148f8000-0xffffc900148ff000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc90014900000-0xffffc90014907000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014908000-0xffffc9001490f000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc90014910000-0xffffc90014917000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014918000-0xffffc9001491f000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc90014920000-0xffffc90014927000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014928000-0xffffc9001492f000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc90014930000-0xffffc90014937000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014938000-0xffffc9001493e000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc9001493f000-0xffffc90014945000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc90014946000-0xffffc9001494c000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc9001494d000-0xffffc90014953000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc90014954000-0xffffc9001495a000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc9001495b000-0xffffc90014961000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc90014962000-0xffffc90014968000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014969000-0xffffc9001496f000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc90014970000-0xffffc90014976000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014977000-0xffffc9001497d000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc9001497e000-0xffffc90014984000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014985000-0xffffc9001498b000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc9001498c000-0xffffc90014992000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014993000-0xffffc90014999000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc9001499a000-0xffffc900149a0000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc900149a1000-0xffffc900149a7000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc900149a8000-0xffffc900149ae000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc900149af000-0xffffc900149b5000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc900149b6000-0xffffc900149bc000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc900149bd000-0xffffc900149c3000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc900149c4000-0xffffc900149ca000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc900149cb000-0xffffc900149d1000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc900149d2000-0xffffc900149d8000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc900149d9000-0xffffc900149df000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc900149e0000-0xffffc900149e7000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc900149e8000-0xffffc900149ef000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc900149f0000-0xffffc900149f7000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc900149f8000-0xffffc900149ff000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014a00000-0xffffc90014a07000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc90014a08000-0xffffc90014a0f000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014a10000-0xffffc90014a17000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc90014a18000-0xffffc90014a1f000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014a20000-0xffffc90014a27000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc90014a28000-0xffffc90014a2f000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014a30000-0xffffc90014a37000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc90014a38000-0xffffc90014a3f000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014a40000-0xffffc90014a47000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc90014a48000-0xffffc90014a4f000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014a50000-0xffffc90014a57000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc90014a58000-0xffffc90014a5f000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014a60000-0xffffc90014a67000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc90014a68000-0xffffc90014a6f000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014a70000-0xffffc90014a77000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc90014a78000-0xffffc90014a7f000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014a80000-0xffffc90014a87000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc90014a88000-0xffffc90014a8f000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014a90000-0xffffc90014a97000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N0=6
0xffffc90014a98000-0xffffc90014a9f000 28672 ixgbe_setup_tx_resources+0x3e/0x1b0 [ixgbe] pages=6 vmalloc N1=6
0xffffc90014aa0000-0xffffc90014aa6000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014aa7000-0xffffc90014aad000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc90014aae000-0xffffc90014ab4000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014ab5000-0xffffc90014abb000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc90014abc000-0xffffc90014ac2000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014ac3000-0xffffc90014ac9000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc90014aca000-0xffffc90014ad0000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014ad1000-0xffffc90014ad7000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc90014ad8000-0xffffc90014ade000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014adf000-0xffffc90014ae5000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc90014ae6000-0xffffc90014aec000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014aed000-0xffffc90014af3000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc90014af4000-0xffffc90014afa000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014afb000-0xffffc90014b01000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc90014b02000-0xffffc90014b08000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014b09000-0xffffc90014b0f000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc90014b10000-0xffffc90014b16000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014b17000-0xffffc90014b1d000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc90014b1e000-0xffffc90014b24000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014b25000-0xffffc90014b2b000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc90014b2c000-0xffffc90014b32000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014b33000-0xffffc90014b39000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc90014b3a000-0xffffc90014b40000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N0=5
0xffffc90014b41000-0xffffc90014b47000 24576 ixgbe_setup_rx_resources+0x3e/0x1b0 [ixgbe] pages=5 vmalloc N1=5
0xffffc900151bb000-0xffffc900151c4000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc900151c5000-0xffffc900151ce000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc900151cf000-0xffffc900151d8000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc900151d9000-0xffffc900151e2000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc900151e3000-0xffffc900151ec000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc900151ed000-0xffffc900151f6000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc900151f7000-0xffffc90015200000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90015201000-0xffffc9001520a000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90015286000-0xffffc9001528f000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90015290000-0xffffc90015299000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc9001529a000-0xffffc900152a3000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc900152a4000-0xffffc900152ad000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc900152ae000-0xffffc900152b7000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc900152b8000-0xffffc900152c1000 36864 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90015600000-0xffffc90015801000 2101248 ixgbe_probe+0x261/0x10f8 [ixgbe] phys=de400000 ioremap
0xffffc90016d14000-0xffffc90016d55000 266240 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90016d56000-0xffffc90016d97000 266240 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90016d98000-0xffffc90016dd9000 266240 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90016dda000-0xffffc90016e1b000 266240 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90016e1c000-0xffffc90016e5d000 266240 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90016e5e000-0xffffc90016e9f000 266240 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90016ea0000-0xffffc90016ee1000 266240 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffc90016ee2000-0xffffc90016f23000 266240 _xfs_buf_map_pages+0x86/0xb3 [xfs] vmap
0xffffe8fcd1400000-0xffffe8fcd1600000 2097152 pcpu_get_vm_areas+0x0/0x541 vmalloc
0xffffe8ffffc00000-0xffffe8ffffe00000 2097152 pcpu_get_vm_areas+0x0/0x541 vmalloc
0xffffffffa0000000-0xffffffffa0004000 16384 load_module+0x767/0x18be pages=3 vmalloc N1=3
0xffffffffa0005000-0xffffffffa0008000 12288 load_module+0x767/0x18be pages=2 vmalloc N0=2
0xffffffffa0009000-0xffffffffa0019000 65536 load_module+0x767/0x18be pages=15 vmalloc N0=15
0xffffffffa001a000-0xffffffffa001e000 16384 load_module+0x767/0x18be pages=3 vmalloc N0=3
0xffffffffa001e000-0xffffffffa0020000 8192 load_module+0x767/0x18be pages=1 vmalloc N1=1
0xffffffffa0020000-0xffffffffa0023000 12288 load_module+0x767/0x18be pages=2 vmalloc N1=2
0xffffffffa0024000-0xffffffffa0027000 12288 load_module+0x767/0x18be pages=2 vmalloc N0=2
0xffffffffa0027000-0xffffffffa0046000 126976 load_module+0x767/0x18be pages=30 vmalloc N0=30
0xffffffffa0047000-0xffffffffa0050000 36864 load_module+0x767/0x18be pages=8 vmalloc N0=8
0xffffffffa0051000-0xffffffffa0054000 12288 load_module+0x767/0x18be pages=2 vmalloc N0=2
0xffffffffa0055000-0xffffffffa0057000 8192 load_module+0x767/0x18be pages=1 vmalloc N0=1
0xffffffffa0057000-0xffffffffa0076000 126976 load_module+0x767/0x18be pages=30 vmalloc N1=30
0xffffffffa0077000-0xffffffffa007b000 16384 load_module+0x767/0x18be pages=3 vmalloc N1=3
0xffffffffa007c000-0xffffffffa0082000 24576 load_module+0x767/0x18be pages=5 vmalloc N0=5
0xffffffffa0083000-0xffffffffa0086000 12288 load_module+0x767/0x18be pages=2 vmalloc N0=2
0xffffffffa0088000-0xffffffffa0091000 36864 load_module+0x767/0x18be pages=8 vmalloc N1=8
0xffffffffa0092000-0xffffffffa0095000 12288 load_module+0x767/0x18be pages=2 vmalloc N1=2
0xffffffffa0096000-0xffffffffa00b8000 139264 load_module+0x767/0x18be pages=33 vmalloc N1=33
0xffffffffa00b9000-0xffffffffa00c4000 45056 load_module+0x767/0x18be pages=10 vmalloc N0=10
0xffffffffa00c5000-0xffffffffa00c8000 12288 load_module+0x767/0x18be pages=2 vmalloc N0=2
0xffffffffa00c8000-0xffffffffa00cb000 12288 load_module+0x767/0x18be pages=2 vmalloc N0=2
0xffffffffa00cc000-0xffffffffa00d5000 36864 load_module+0x767/0x18be pages=8 vmalloc N1=8
0xffffffffa00d6000-0xffffffffa00dd000 28672 load_module+0x767/0x18be pages=6 vmalloc N1=6
0xffffffffa00de000-0xffffffffa00ef000 69632 load_module+0x767/0x18be pages=16 vmalloc N0=16
0xffffffffa00f0000-0xffffffffa00fa000 40960 load_module+0x767/0x18be pages=9 vmalloc N1=9
0xffffffffa00fb000-0xffffffffa00fd000 8192 load_module+0x767/0x18be pages=1 vmalloc N1=1
0xffffffffa0101000-0xffffffffa010a000 36864 load_module+0x767/0x18be pages=8 vmalloc N1=8
0xffffffffa010f000-0xffffffffa0114000 20480 load_module+0x767/0x18be pages=4 vmalloc N1=4
0xffffffffa0119000-0xffffffffa011f000 24576 load_module+0x767/0x18be pages=5 vmalloc N1=5
0xffffffffa0120000-0xffffffffa0128000 32768 load_module+0x767/0x18be pages=7 vmalloc N0=7
0xffffffffa012a000-0xffffffffa012c000 8192 load_module+0x767/0x18be pages=1 vmalloc N0=1
0xffffffffa0130000-0xffffffffa019c000 442368 load_module+0x767/0x18be pages=107 vmalloc N0=107
0xffffffffa01a7000-0xffffffffa01b0000 36864 load_module+0x767/0x18be pages=8 vmalloc N0=8
0xffffffffa01b3000-0xffffffffa01b6000 12288 load_module+0x767/0x18be pages=2 vmalloc N0=2
0xffffffffa01ba000-0xffffffffa01bc000 8192 load_module+0x767/0x18be pages=1 vmalloc N0=1
0xffffffffa01c0000-0xffffffffa01c3000 12288 load_module+0x767/0x18be pages=2 vmalloc N0=2
0xffffffffa01c8000-0xffffffffa01cb000 12288 load_module+0x767/0x18be pages=2 vmalloc N0=2
0xffffffffa01d0000-0xffffffffa01dd000 53248 load_module+0x767/0x18be pages=12 vmalloc N0=12
0xffffffffa01de000-0xffffffffa01e5000 28672 load_module+0x767/0x18be pages=6 vmalloc N0=6
0xffffffffa01e7000-0xffffffffa01ec000 20480 load_module+0x767/0x18be pages=4 vmalloc N0=4
0xffffffffa01f2000-0xffffffffa0202000 65536 load_module+0x767/0x18be pages=15 vmalloc N0=15
0xffffffffa0203000-0xffffffffa0209000 24576 load_module+0x767/0x18be pages=5 vmalloc N0=5
0xffffffffa020d000-0xffffffffa020f000 8192 load_module+0x767/0x18be pages=1 vmalloc N0=1
0xffffffffa0210000-0xffffffffa021a000 40960 load_module+0x767/0x18be pages=9 vmalloc N0=9
0xffffffffa021b000-0xffffffffa021e000 12288 load_module+0x767/0x18be pages=2 vmalloc N1=2
0xffffffffa0223000-0xffffffffa0227000 16384 load_module+0x767/0x18be pages=3 vmalloc N1=3
0xffffffffa022c000-0xffffffffa0235000 36864 load_module+0x767/0x18be pages=8 vmalloc N0=8
0xffffffffa023c000-0xffffffffa023f000 12288 load_module+0x767/0x18be pages=2 vmalloc N0=2
0xffffffffa0244000-0xffffffffa0252000 57344 load_module+0x767/0x18be pages=13 vmalloc N0=13
0xffffffffa0259000-0xffffffffa025b000 8192 load_module+0x767/0x18be pages=1 vmalloc N1=1
0xffffffffa0260000-0xffffffffa028d000 184320 load_module+0x767/0x18be pages=44 vmalloc N1=44
0xffffffffa028e000-0xffffffffa0297000 36864 load_module+0x767/0x18be pages=8 vmalloc N0=8
0xffffffffa029a000-0xffffffffa02b6000 114688 load_module+0x767/0x18be pages=27 vmalloc N0=27
0xffffffffa02b7000-0xffffffffa02cb000 81920 load_module+0x767/0x18be pages=19 vmalloc N1=19
0xffffffffa02fe000-0xffffffffa030b000 53248 load_module+0x767/0x18be pages=12 vmalloc N0=12
0xffffffffa030c000-0xffffffffa0323000 94208 load_module+0x767/0x18be pages=22 vmalloc N0=22
0xffffffffa0324000-0xffffffffa0355000 200704 load_module+0x767/0x18be pages=48 vmalloc N0=48
0xffffffffa0356000-0xffffffffa037f000 167936 load_module+0x767/0x18be pages=40 vmalloc N0=40
0xffffffffa0394000-0xffffffffa03a4000 65536 load_module+0x767/0x18be pages=15 vmalloc N0=15
0xffffffffa03a5000-0xffffffffa03e1000 245760 load_module+0x767/0x18be pages=59 vmalloc N0=59

# vmstat -n 1
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
8 1 15168 90900 8 22655924 29 29 82 160 10 7 1 1 97 2
8 1 15168 90736 8 22655948 0 0 0 0 3719 1131 0 4 96 0
8 1 15168 90728 8 22655956 0 0 0 0 3714 1129 0 5 95 0
8 1 15168 90720 8 22655956 0 0 0 0 3720 1124 0 3 97 0
8 1 15168 90720 8 22655956 0 0 0 0 3713 1133 0 3 97 0
8 1 15168 90720 8 22655956 0 0 0 0 3719 1135 0 7 93 0
8 1 15168 90720 8 22655956 0 0 0 0 3719 1131 0 7 93 0
8 1 15168 90720 8 22655956 0 0 0 0 3714 1125 0 7 93 0
8 1 15168 90720 8 22655956 0 0 0 0 3708 1123 0 7 93 0
8 1 15168 90720 8 22655956 0 0 0 0 3713 1124 0 2 98 0
8 1 15168 90720 8 22655956 0 0 0 0 3719 1149 0 3 97 0
8 1 15168 90720 8 22655956 0 0 0 0 3724 1180 0 6 94 0
8 1 15168 90720 8 22655956 0 0 0 0 3712 1150 0 7 93 0
8 1 15168 90720 8 22655956 0 0 0 0 3717 1129 0 4 96 0

# cat /proc/meminfo
MemTotal: 24730012 kB
MemFree: 91136 kB
Buffers: 8 kB
Cached: 22655840 kB
SwapCached: 2024 kB
Active: 1948740 kB
Inactive: 20765120 kB
Active(anon): 13868 kB
Inactive(anon): 44316 kB
Active(file): 1934872 kB
Inactive(file): 20720804 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 12546756 kB
SwapFree: 12531588 kB
Dirty: 69420 kB
Writeback: 11484 kB
AnonPages: 57412 kB
Mapped: 6852 kB
Shmem: 16 kB
Slab: 1753748 kB
SReclaimable: 1469088 kB
SUnreclaim: 284660 kB
KernelStack: 6792 kB
PageTables: 5060 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 24911760 kB
Committed_AS: 470000 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 346564 kB
VmallocChunk: 34346013556 kB
HardwareCorrupted: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 5604 kB
DirectMap2M: 2078720 kB
DirectMap1G: 23068672 kB

On Sat, Apr 02, 2011 at 09:13:20AM +0200, Giuseppe Lavagetto wrote:
> I was able to reproduce the problem:
>
> if I copy several GBs of small files over nfs to the machine it
> eventually hangs kswapd eating up all CPU of one core.
>
> This machine is not under any kind of heavy workload, it is just using
> its RAM for caching.

I noticed a similar problem when using an nfs v3 client connected to nfs
v3/v4 server. You may want to check if using nfs4 only on the client
helps (it did in my case).

--
mattia
:wq!



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