Bug#758870: nfs-common: nfs v4: uid/gid lookup fails for some of the users
Hi all,
As far as I can see, the nfs4 jessie clients caused serious problems on
the serving nfs server (which is a wheezy system), leading to an nfsd
kernel crash on the wheezy system.
FYI: the server is an up-to-date wheezy system (kernel 3.2.60-1+deb7u3).
The dumps got away as soon as I unmounted the nfs4 clients that are
running jessie; those jessie systems are also up-to-date (kernel 3.14.15-2
(2014-08-09)).
This took down our production environment.
I fixed it by disabling all jessie nfs v4 clients.
Regards,
Piet
Here is a set of kernel dumps from the nfs server system:
[ 270.413977] BUG: unable to handle kernel NULL pointer dereference at
0000000000000010
[ 270.414297] IP: [<ffffffffa0381311>] set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 270.414516] PGD 0
[ 270.414709] Oops: 0000 [#3] SMP
[ 270.414989] CPU 1
[ 270.415078] Modules linked in: parport_pc ppdev lp parport binfmt_misc
nfsd nfs nfs_acl auth_rpcgss fscache lockd sunrpc loop snd_pcm
snd_page_alloc snd_timer coretemp crc32c_intel ghash_clmulni_intel
aesni_intel aes_x86_64 aes_generic snd iTCO_wdt iTCO_vendor_support
soundcore cryptd joydev evdev pcspkr sb_edac edac_core dcdbas shpchp wmi
acpi_power_meter processor button thermal_sys xfs usbhid hid usb_storage
sg sd_mod crc_t10dif igb ehci_hcd i2c_algo_bit i2c_core usbcore ixgbe
usb_common dca megaraid_sas scsi_mod mdio [last unloaded: scsi_wait_scan]
[ 270.420471]
[ 270.420583] Pid: 3504, comm: nfsd Tainted: G D W 3.2.0-4-amd64
#1 Debian 3.2.60-1+deb7u3 Dell Inc. PowerEdge R720xd/0C4Y3R
[ 270.420989] RIP: 0010:[<ffffffffa0381311>] [<ffffffffa0381311>]
set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 270.421229] RSP: 0018:ffff880fe48a7d30 EFLAGS: 00010286
[ 270.421347] RAX: 0000000000004000 RBX: ffff880fbac5ecc0 RCX:
0000000000000024
[ 270.421471] RDX: ffffffffa039d6fb RSI: 0000000000000000 RDI:
ffff880fbac5ecc0
[ 270.421595] RBP: ffff880fbac5ecc0 R08: 0000000000000000 R09:
0000000000000000
[ 270.421719] R10: ffff880fbe8f6de0 R11: ffff880fbe8f6de0 R12:
ffffffffa039d6fb
[ 270.421842] R13: 0000000000000000 R14: 0000000000000440 R15:
ffff880fe4f89180
[ 270.421967] FS: 0000000000000000(0000) GS:ffff88102f220000(0000)
knlGS:0000000000000000
[ 270.422115] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 270.422241] CR2: 0000000000000010 CR3: 0000000001605000 CR4:
00000000000406e0
[ 270.422367] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 270.422491] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 270.422616] Process nfsd (pid: 3504, threadinfo ffff880fe48a6000, task
ffff880fecb42180)
[ 270.422762] Stack:
[ 270.422872] 0000000000000451 ffff880f00000000 ffff880fbac5ecc0
ffff880fe076b1c0
[ 270.423351] 0000000000000000 0000000000000000 0000000000000440
ffffffffa0381bf4
[ 270.423829] ffff880f9f9e4600 0000000000000000 ffff880fe4f89040
ffff880fe4f8c000
[ 270.424306] Call Trace:
[ 270.424428] [<ffffffffa0381bf4>] ? nfsd4_set_nfs4_acl+0xb4/0xe6 [nfsd]
[ 270.424559] [<ffffffffa038b637>] ? nfsd4_setattr+0xae/0xe8 [nfsd]
[ 270.424687] [<ffffffffa038a8d6>] ? nfsd4_proc_compound+0x251/0x41d [nfsd]
[ 270.424816] [<ffffffffa037e7cd>] ? nfsd_dispatch+0xd7/0x1ba [nfsd]
[ 270.424950] [<ffffffffa030ec3f>] ? svc_process_common+0x2c3/0x4c4
[sunrpc]
[ 270.425078] [<ffffffff8103f6e2>] ? try_to_wake_up+0x197/0x197
[ 270.425207] [<ffffffffa030f050>] ? svc_process+0x110/0x12c [sunrpc]
[ 270.425332] [<ffffffffa037e0e3>] ? nfsd+0xe3/0x127 [nfsd]
[ 270.425455] [<ffffffffa037e000>] ? 0xffffffffa037dfff
[ 270.425577] [<ffffffff8105f701>] ? kthread+0x76/0x7e
[ 270.425702] [<ffffffff813575b4>] ? kernel_thread_helper+0x4/0x10
[ 270.425826] [<ffffffff8105f68b>] ? kthread_worker_fn+0x139/0x139
[ 270.425945] [<ffffffff813575b0>] ? gs_change+0x13/0x13
[ 270.426063] Code: 48 8b 80 20 01 00 00 c6 87 9e 00 00 00 01 48 89 87 c8
00 00 00 c3 41 56 41 55 49 89 f5 41 54 49 89 d4 55 48 89 fd 53 48 83 ec 10
<48> 63 46 10 be d0 00 00 00 4c 8d 34 c5 04 00 00 00 4c 89 f7 e8
[ 270.431678] RIP [<ffffffffa0381311>] set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 270.431889] RSP <ffff880fe48a7d30>
[ 270.432003] CR2: 0000000000000010
[ 270.432121] BUG: unable to handle kernel
[ 270.432142] ---[ end trace 5c2d08be1ab6f7cb ]---
[ 270.432437] NULL pointer dereference at 0000000000000010
[ 270.432639] IP: [<ffffffffa0381311>] set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 270.432853] PGD 0
[ 270.432945] Oops: 0000 [#4] SMP
[ 270.432948] CPU 0
[ 270.432949] Modules linked in: parport_pc ppdev lp parport binfmt_misc
nfsd nfs nfs_acl auth_rpcgss fscache lockd sunrpc loop snd_pcm
snd_page_alloc snd_timer coretemp crc32c_intel ghash_clmulni_intel
aesni_intel aes_x86_64 aes_generic snd iTCO_wdt iTCO_vendor_support
soundcore cryptd joydev evdev pcspkr sb_edac edac_core dcdbas shpchp wmi
acpi_power_meter processor button thermal_sys xfs usbhid hid usb_storage
sg sd_mod crc_t10dif igb ehci_hcd i2c_algo_bit i2c_core usbcore ixgbe
usb_common dca megaraid_sas scsi_mod mdio [last unloaded: scsi_wait_scan]
[ 270.432985]
[ 270.432989] Pid: 3496, comm: nfsd Tainted: G D W 3.2.0-4-amd64
#1 Debian 3.2.60-1+deb7u3 Dell Inc. PowerEdge R720xd/0C4Y3R
[ 270.432995] RIP: 0010:[<ffffffffa0381311>] [<ffffffffa0381311>]
set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 270.433006] RSP: 0018:ffff880fed469d30 EFLAGS: 00010286
[ 270.433009] RAX: 0000000000004000 RBX: ffff880fbac5ec00 RCX:
0000000000000024
[ 270.433012] RDX: ffffffffa039d6fb RSI: 0000000000000000 RDI:
ffff880fbac5ec00
[ 270.433015] RBP: ffff880fbac5ec00 R08: 0000000000000000 R09:
0000000000000000
[ 270.433018] R10: ffff880fbe8f6de0 R11: ffff880fbe8f6de0 R12:
ffffffffa039d6fb
[ 270.433021] R13: 0000000000000000 R14: 0000000000000440 R15:
ffff880fec2aa180
[ 270.433025] FS: 0000000000000000(0000) GS:ffff88102f200000(0000)
knlGS:0000000000000000
[ 270.433029] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 270.433032] CR2: 0000000000000010 CR3: 0000000001605000 CR4:
00000000000406f0
[ 270.433035] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 270.433038] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 270.433042] Process nfsd (pid: 3496, threadinfo ffff880fed468000, task
ffff880fee855740)
[ 270.433044] Stack:
[ 270.433046] 0000000000000451 ffff880f00000000 ffff880fbac5ec00
ffff880fbac42240
[ 270.433051] 0000000000000000 0000000000000000 0000000000000440
ffffffffa0381bf4
[ 270.433056] ffff880fc3fc06c0 0000000000000000 ffff880fec2aa040
ffff880fedf50000
[ 270.433062] Call Trace:
[ 270.433072] [<ffffffffa0381bf4>] ? nfsd4_set_nfs4_acl+0xb4/0xe6 [nfsd]
[ 270.433084] [<ffffffffa038b637>] ? nfsd4_setattr+0xae/0xe8 [nfsd]
[ 270.433094] [<ffffffffa038a8d6>] ? nfsd4_proc_compound+0x251/0x41d [nfsd]
[ 270.433103] [<ffffffffa037e7cd>] ? nfsd_dispatch+0xd7/0x1ba [nfsd]
[ 270.433116] [<ffffffffa030ec3f>] ? svc_process_common+0x2c3/0x4c4
[sunrpc]
[ 270.433121] [<ffffffff8103f6e2>] ? try_to_wake_up+0x197/0x197
[ 270.433132] [<ffffffffa030f050>] ? svc_process+0x110/0x12c [sunrpc]
[ 270.433139] [<ffffffffa037e0e3>] ? nfsd+0xe3/0x127 [nfsd]
[ 270.433144] [<ffffffffa037e000>] ? 0xffffffffa037dfff
[ 270.433150] [<ffffffff8105f701>] ? kthread+0x76/0x7e
[ 270.433155] [<ffffffff813575b4>] ? kernel_thread_helper+0x4/0x10
[ 270.433161] [<ffffffff8105f68b>] ? kthread_worker_fn+0x139/0x139
[ 270.433166] [<ffffffff813575b0>] ? gs_change+0x13/0x13
[ 270.433168] Code: 48 8b 80 20 01 00 00 c6 87 9e 00 00 00 01 48 89 87 c8
00 00 00 c3 41 56 41 55 49 89 f5 41 54 49 89 d4 55 48 89 fd 53 48 83 ec 10
<48> 63 46 10 be d0 00 00 00 4c 8d 34 c5 04 00 00 00 4c 89 f7 e8
[ 270.433197] RIP [<ffffffffa0381311>] set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 270.433206] RSP <ffff880fed469d30>
[ 270.433208] CR2: 0000000000000010
[ 270.433295] ---[ end trace 5c2d08be1ab6f7cc ]---
[ 450.369988] BUG: unable to handle kernel NULL pointer dereference at
0000000000000010
[ 450.370305] IP: [<ffffffffa0381311>] set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 450.370520] PGD 0
[ 450.370714] Oops: 0000 [#5] SMP
[ 450.370994] CPU 1
[ 450.371082] Modules linked in: parport_pc ppdev lp parport binfmt_misc
nfsd nfs nfs_acl auth_rpcgss fscache lockd sunrpc loop snd_pcm
snd_page_alloc snd_timer coretemp crc32c_intel ghash_clmulni_intel
aesni_intel aes_x86_64 aes_generic snd iTCO_wdt iTCO_vendor_support
soundcore cryptd joydev evdev pcspkr sb_edac edac_core dcdbas shpchp wmi
acpi_power_meter processor button thermal_sys xfs usbhid hid usb_storage
sg sd_mod crc_t10dif igb ehci_hcd i2c_algo_bit i2c_core usbcore ixgbe
usb_common dca megaraid_sas scsi_mod mdio [last unloaded: scsi_wait_scan]
[ 450.376475]
[ 450.376589] Pid: 3515, comm: nfsd Tainted: G D W 3.2.0-4-amd64
#1 Debian 3.2.60-1+deb7u3 Dell Inc. PowerEdge R720xd/0C4Y3R
[ 450.376990] RIP: 0010:[<ffffffffa0381311>] [<ffffffffa0381311>]
set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 450.377229] RSP: 0018:ffff880fe43f7d30 EFLAGS: 00010286
[ 450.377349] RAX: 0000000000004000 RBX: ffff880fbac5ec00 RCX:
0000000000000024
[ 450.377468] RDX: ffffffffa039d6fb RSI: 0000000000000000 RDI:
ffff880fbac5ec00
[ 450.377586] RBP: ffff880fbac5ec00 R08: 0000000000000000 R09:
0000000000000000
[ 450.377710] R10: ffff880fbe8f6de0 R11: ffff880fbe8f6de0 R12:
ffffffffa039d6fb
[ 450.377829] R13: 0000000000000000 R14: 0000000000000440 R15:
ffff880fe42e1180
[ 450.377954] FS: 0000000000000000(0000) GS:ffff88102f220000(0000)
knlGS:0000000000000000
[ 450.378102] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 450.378223] CR2: 0000000000000010 CR3: 0000000001605000 CR4:
00000000000406e0
[ 450.378347] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 450.378471] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 450.378596] Process nfsd (pid: 3515, threadinfo ffff880fe43f6000, task
ffff880fec22d740)
[ 450.378737] Stack:
[ 450.378847] 0000000000000451 ffff880f00000000 ffff880fbac5ec00
ffff880fbac42240
[ 450.379341] 0000000000000000 0000000000000000 0000000000000440
ffffffffa0381bf4
[ 450.379818] ffff880fe42f5700 0000000000000000 ffff880fe42e1040
ffff880fe42fc000
[ 450.380293] Call Trace:
[ 450.380422] [<ffffffffa0381bf4>] ? nfsd4_set_nfs4_acl+0xb4/0xe6 [nfsd]
[ 450.380555] [<ffffffffa038b637>] ? nfsd4_setattr+0xae/0xe8 [nfsd]
[ 450.380679] [<ffffffffa038a8d6>] ? nfsd4_proc_compound+0x251/0x41d [nfsd]
[ 450.380808] [<ffffffffa037e7cd>] ? nfsd_dispatch+0xd7/0x1ba [nfsd]
[ 450.380941] [<ffffffffa030ec3f>] ? svc_process_common+0x2c3/0x4c4
[sunrpc]
[ 450.381068] [<ffffffff8103f6e2>] ? try_to_wake_up+0x197/0x197
[ 450.381197] [<ffffffffa030f050>] ? svc_process+0x110/0x12c [sunrpc]
[ 450.381322] [<ffffffffa037e0e3>] ? nfsd+0xe3/0x127 [nfsd]
[ 450.381444] [<ffffffffa037e000>] ? 0xffffffffa037dfff
[ 450.381569] [<ffffffff8105f701>] ? kthread+0x76/0x7e
[ 450.381695] [<ffffffff813575b4>] ? kernel_thread_helper+0x4/0x10
[ 450.381819] [<ffffffff8105f68b>] ? kthread_worker_fn+0x139/0x139
[ 450.381942] [<ffffffff813575b0>] ? gs_change+0x13/0x13
[ 450.382060] Code: 48 8b 80 20 01 00 00 c6 87 9e 00 00 00 01 48 89 87 c8
00 00 00 c3 41 56 41 55 49 89 f5 41 54 49 89 d4 55 48 89 fd 53 48 83 ec 10
<48> 63 46 10 be d0 00 00 00 4c 8d 34 c5 04 00 00 00 4c 89 f7 e8
[ 450.387639] RIP [<ffffffffa0381311>] set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 450.387850] RSP <ffff880fe43f7d30>
[ 450.387964] CR2: 0000000000000010
[ 450.388076] BUG: unable to handle kernel
[ 450.388096] ---[ end trace 5c2d08be1ab6f7cd ]---
[ 450.388393] NULL pointer dereference at 0000000000000010
[ 450.388592] IP: [<ffffffffa0381311>] set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 450.388807] PGD 0
[ 450.388899] Oops: 0000 [#6] SMP
[ 450.388902] CPU 0
[ 450.388903] Modules linked in: parport_pc ppdev lp parport binfmt_misc
nfsd nfs nfs_acl auth_rpcgss fscache lockd sunrpc loop snd_pcm
snd_page_alloc snd_timer coretemp crc32c_intel ghash_clmulni_intel
aesni_intel aes_x86_64 aes_generic snd iTCO_wdt iTCO_vendor_support
soundcore cryptd joydev evdev pcspkr sb_edac edac_core dcdbas shpchp wmi
acpi_power_meter processor button thermal_sys xfs usbhid hid usb_storage
sg sd_mod crc_t10dif igb ehci_hcd i2c_algo_bit i2c_core usbcore ixgbe
usb_common dca megaraid_sas scsi_mod mdio [last unloaded: scsi_wait_scan]
[ 450.388939]
[ 450.388943] Pid: 3493, comm: nfsd Tainted: G D W 3.2.0-4-amd64
#1 Debian 3.2.60-1+deb7u3 Dell Inc. PowerEdge R720xd/0C4Y3R
[ 450.388948] RIP: 0010:[<ffffffffa0381311>] [<ffffffffa0381311>]
set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 450.388960] RSP: 0018:ffff880fedd57d30 EFLAGS: 00010286
[ 450.388963] RAX: 0000000000004000 RBX: ffff880fbac5ecc0 RCX:
0000000000000024
[ 450.388966] RDX: ffffffffa039d6fb RSI: 0000000000000000 RDI:
ffff880fbac5ecc0
[ 450.388969] RBP: ffff880fbac5ecc0 R08: 0000000000000000 R09:
0000000000000000
[ 450.388972] R10: ffff880fbe8f6de0 R11: ffff880fbe8f6de0 R12:
ffffffffa039d6fb
[ 450.388975] R13: 0000000000000000 R14: 0000000000000440 R15:
ffff880fee550180
[ 450.388979] FS: 0000000000000000(0000) GS:ffff88102f200000(0000)
knlGS:0000000000000000
[ 450.388983] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 450.388986] CR2: 0000000000000010 CR3: 0000000001605000 CR4:
00000000000406f0
[ 450.388989] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 450.388992] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 450.388996] Process nfsd (pid: 3493, threadinfo ffff880fedd56000, task
ffff880fec0cd080)
[ 450.388999] Stack:
[ 450.389000] 0000000000000451 ffff880f00000000 ffff880fbac5ecc0
ffff880fe076b1c0
[ 450.389006] 0000000000000000 0000000000000000 0000000000000440
ffffffffa0381bf4
[ 450.389011] ffff880fbfabab00 0000000000000000 ffff880fee550040
ffff880fedc3c000
[ 450.389017] Call Trace:
[ 450.389027] [<ffffffffa0381bf4>] ? nfsd4_set_nfs4_acl+0xb4/0xe6 [nfsd]
[ 450.389039] [<ffffffffa038b637>] ? nfsd4_setattr+0xae/0xe8 [nfsd]
[ 450.389049] [<ffffffffa038a8d6>] ? nfsd4_proc_compound+0x251/0x41d [nfsd]
[ 450.389058] [<ffffffffa037e7cd>] ? nfsd_dispatch+0xd7/0x1ba [nfsd]
[ 450.389071] [<ffffffffa030ec3f>] ? svc_process_common+0x2c3/0x4c4
[sunrpc]
[ 450.389076] [<ffffffff8103f6e2>] ? try_to_wake_up+0x197/0x197
[ 450.389087] [<ffffffffa030f050>] ? svc_process+0x110/0x12c [sunrpc]
[ 450.389094] [<ffffffffa037e0e3>] ? nfsd+0xe3/0x127 [nfsd]
[ 450.389098] [<ffffffffa037e000>] ? 0xffffffffa037dfff
[ 450.389104] [<ffffffff8105f701>] ? kthread+0x76/0x7e
[ 450.389110] [<ffffffff813575b4>] ? kernel_thread_helper+0x4/0x10
[ 450.389115] [<ffffffff8105f68b>] ? kthread_worker_fn+0x139/0x139
[ 450.389120] [<ffffffff813575b0>] ? gs_change+0x13/0x13
[ 450.389122] Code: 48 8b 80 20 01 00 00 c6 87 9e 00 00 00 01 48 89 87 c8
00 00 00 c3 41 56 41 55 49 89 f5 41 54 49 89 d4 55 48 89 fd 53 48 83 ec 10
<48> 63 46 10 be d0 00 00 00 4c 8d 34 c5 04 00 00 00 4c 89 f7 e8
[ 450.389151] RIP [<ffffffffa0381311>] set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 450.389160] RSP <ffff880fedd57d30>
[ 450.389162] CR2: 0000000000000010
[ 450.389212] ---[ end trace 5c2d08be1ab6f7ce ]---
[ 630.325739] BUG: unable to handle kernel NULL pointer dereference at
0000000000000010
[ 630.326058] IP: [<ffffffffa0381311>] set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 630.326277] PGD 0
[ 630.326471] Oops: 0000 [#7] SMP
[ 630.326753] CPU 1
[ 630.326841] Modules linked in: parport_pc ppdev lp parport binfmt_misc
nfsd nfs nfs_acl auth_rpcgss fscache lockd sunrpc loop snd_pcm
snd_page_alloc snd_timer coretemp crc32c_intel ghash_clmulni_intel
aesni_intel aes_x86_64 aes_generic snd iTCO_wdt iTCO_vendor_support
soundcore cryptd joydev evdev pcspkr sb_edac edac_core dcdbas shpchp wmi
acpi_power_meter processor button thermal_sys xfs usbhid hid usb_storage
sg sd_mod crc_t10dif igb ehci_hcd i2c_algo_bit i2c_core usbcore ixgbe
usb_common dca megaraid_sas scsi_mod mdio [last unloaded: scsi_wait_scan]
[ 630.332303]
[ 630.332415] Pid: 3494, comm: nfsd Tainted: G D W 3.2.0-4-amd64
#1 Debian 3.2.60-1+deb7u3 Dell Inc. PowerEdge R720xd/0C4Y3R
[ 630.332821] RIP: 0010:[<ffffffffa0381311>] [<ffffffffa0381311>]
set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 630.333060] RSP: 0018:ffff880fede53d30 EFLAGS: 00010286
[ 630.333175] RAX: 0000000000004000 RBX: ffff880fbac5ecc0 RCX:
0000000000000024
[ 630.333299] RDX: ffffffffa039d6fb RSI: 0000000000000000 RDI:
ffff880fbac5ecc0
[ 630.333423] RBP: ffff880fbac5ecc0 R08: 0000000000000000 R09:
0000000000000000
[ 630.333547] R10: ffff880fbe8f6de0 R11: ffff880fbe8f6de0 R12:
ffffffffa039d6fb
[ 630.333671] R13: 0000000000000000 R14: 0000000000000440 R15:
ffff880feb903180
[ 630.333790] FS: 0000000000000000(0000) GS:ffff88102f220000(0000)
knlGS:0000000000000000
[ 630.333933] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 630.334052] CR2: 0000000000000010 CR3: 0000000001605000 CR4:
00000000000406e0
[ 630.334176] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 630.334300] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 630.334420] Process nfsd (pid: 3494, threadinfo ffff880fede52000, task
ffff880fee410080)
[ 630.334565] Stack:
[ 630.334675] 0000000000000451 ffff880f00000000 ffff880fbac5ecc0
ffff880fe076b1c0
[ 630.335154] 0000000000000000 0000000000000000 0000000000000440
ffffffffa0381bf4
[ 630.335628] ffff880fda167280 0000000000000000 ffff880feb903040
ffff880fedd58000
[ 630.336106] Call Trace:
[ 630.336234] [<ffffffffa0381bf4>] ? nfsd4_set_nfs4_acl+0xb4/0xe6 [nfsd]
[ 630.336362] [<ffffffffa038b637>] ? nfsd4_setattr+0xae/0xe8 [nfsd]
[ 630.336491] [<ffffffffa038a8d6>] ? nfsd4_proc_compound+0x251/0x41d [nfsd]
[ 630.336620] [<ffffffffa037e7cd>] ? nfsd_dispatch+0xd7/0x1ba [nfsd]
[ 630.336752] [<ffffffffa030ec3f>] ? svc_process_common+0x2c3/0x4c4
[sunrpc]
[ 630.336885] [<ffffffff8103f6e2>] ? try_to_wake_up+0x197/0x197
[ 630.337010] [<ffffffffa030f050>] ? svc_process+0x110/0x12c [sunrpc]
[ 630.337136] [<ffffffffa037e0e3>] ? nfsd+0xe3/0x127 [nfsd]
[ 630.337257] [<ffffffffa037e000>] ? 0xffffffffa037dfff
[ 630.337382] [<ffffffff8105f701>] ? kthread+0x76/0x7e
[ 630.337508] [<ffffffff813575b4>] ? kernel_thread_helper+0x4/0x10
[ 630.337632] [<ffffffff8105f68b>] ? kthread_worker_fn+0x139/0x139
[ 630.337755] [<ffffffff813575b0>] ? gs_change+0x13/0x13
[ 630.337874] Code: 48 8b 80 20 01 00 00 c6 87 9e 00 00 00 01 48 89 87 c8
00 00 00 c3 41 56 41 55 49 89 f5 41 54 49 89 d4 55 48 89 fd 53 48 83 ec 10
<48> 63 46 10 be d0 00 00 00 4c 8d 34 c5 04 00 00 00 4c 89 f7 e8
[ 630.343459] RIP [<ffffffffa0381311>] set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 630.343670] RSP <ffff880fede53d30>
[ 630.343783] CR2: 0000000000000010
[ 630.343900] BUG: unable to handle kernel
[ 630.343917] ---[ end trace 5c2d08be1ab6f7cf ]---
[ 630.344217] NULL pointer dereference at 0000000000000010
[ 630.344419] IP: [<ffffffffa0381311>] set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 630.344633] PGD 0
[ 630.344727] Oops: 0000 [#8] SMP
[ 630.344731] CPU 0
[ 630.344732] Modules linked in: parport_pc ppdev lp parport binfmt_misc
nfsd nfs nfs_acl auth_rpcgss fscache lockd sunrpc loop snd_pcm
snd_page_alloc snd_timer coretemp crc32c_intel ghash_clmulni_intel
aesni_intel aes_x86_64 aes_generic snd iTCO_wdt iTCO_vendor_support
soundcore cryptd joydev evdev pcspkr sb_edac edac_core dcdbas shpchp wmi
acpi_power_meter processor button thermal_sys xfs usbhid hid usb_storage
sg sd_mod crc_t10dif igb ehci_hcd i2c_algo_bit i2c_core usbcore ixgbe
usb_common dca megaraid_sas scsi_mod mdio [last unloaded: scsi_wait_scan]
[ 630.344769]
[ 630.344773] Pid: 3492, comm: nfsd Tainted: G D W 3.2.0-4-amd64
#1 Debian 3.2.60-1+deb7u3 Dell Inc. PowerEdge R720xd/0C4Y3R
[ 630.344779] RIP: 0010:[<ffffffffa0381311>] [<ffffffffa0381311>]
set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 630.344790] RSP: 0018:ffff880fedc3bd30 EFLAGS: 00010286
[ 630.344793] RAX: 0000000000004000 RBX: ffff880fbac5ec00 RCX:
0000000000000024
[ 630.344796] RDX: ffffffffa039d6fb RSI: 0000000000000000 RDI:
ffff880fbac5ec00
[ 630.344799] RBP: ffff880fbac5ec00 R08: 0000000000000000 R09:
0000000000000000
[ 630.344802] R10: ffff880fbe8f6de0 R11: ffff880fbe8f6de0 R12:
ffffffffa039d6fb
[ 630.344805] R13: 0000000000000000 R14: 0000000000000440 R15:
ffff880feb533180
[ 630.344809] FS: 0000000000000000(0000) GS:ffff88102f200000(0000)
knlGS:0000000000000000
[ 630.344812] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 630.344815] CR2: 0000000000000010 CR3: 0000000001605000 CR4:
00000000000406f0
[ 630.344818] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 630.344822] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 630.344825] Process nfsd (pid: 3492, threadinfo ffff880fedc3a000, task
ffff880fec15e800)
[ 630.344828] Stack:
[ 630.344829] 0000000000000451 ffff880f00000000 ffff880fbac5ec00
ffff880fbac42240
[ 630.344835] 0000000000000000 0000000000000000 0000000000000440
ffffffffa0381bf4
[ 630.344840] ffff880f87d16dc0 0000000000000000 ffff880feb533040
ffff880feb23a000
[ 630.344846] Call Trace:
[ 630.344856] [<ffffffffa0381bf4>] ? nfsd4_set_nfs4_acl+0xb4/0xe6 [nfsd]
[ 630.344868] [<ffffffffa038b637>] ? nfsd4_setattr+0xae/0xe8 [nfsd]
[ 630.344879] [<ffffffffa038a8d6>] ? nfsd4_proc_compound+0x251/0x41d [nfsd]
[ 630.344887] [<ffffffffa037e7cd>] ? nfsd_dispatch+0xd7/0x1ba [nfsd]
[ 630.344900] [<ffffffffa030ec3f>] ? svc_process_common+0x2c3/0x4c4
[sunrpc]
[ 630.344905] [<ffffffff8103f6e2>] ? try_to_wake_up+0x197/0x197
[ 630.344916] [<ffffffffa030f050>] ? svc_process+0x110/0x12c [sunrpc]
[ 630.344923] [<ffffffffa037e0e3>] ? nfsd+0xe3/0x127 [nfsd]
[ 630.344928] [<ffffffffa037e000>] ? 0xffffffffa037dfff
[ 630.344934] [<ffffffff8105f701>] ? kthread+0x76/0x7e
[ 630.344939] [<ffffffff813575b4>] ? kernel_thread_helper+0x4/0x10
[ 630.344945] [<ffffffff8105f68b>] ? kthread_worker_fn+0x139/0x139
[ 630.344950] [<ffffffff813575b0>] ? gs_change+0x13/0x13
[ 630.344952] Code: 48 8b 80 20 01 00 00 c6 87 9e 00 00 00 01 48 89 87 c8
00 00 00 c3 41 56 41 55 49 89 f5 41 54 49 89 d4 55 48 89 fd 53 48 83 ec 10
<48> 63 46 10 be d0 00 00 00 4c 8d 34 c5 04 00 00 00 4c 89 f7 e8
[ 630.344981] RIP [<ffffffffa0381311>] set_nfsv4_acl_one+0x15/0x7e [nfsd]
[ 630.344990] RSP <ffff880fedc3bd30>
[ 630.344992] CR2: 0000000000000010
[ 630.345009] ---[ end trace 5c2d08be1ab6f7d0 ]---
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