Description of problem:
Applying a patch
patch -p1 <foo.patch 
both target and patch file on and NFS mount

Additional info:
reporter:       libreport-2.2.3
BUG: unable to handle kernel paging request at ffffffffffffffa1
IP: [<ffffffffa055630b>] nfs3_list_one_acl+0x2b/0x80 [nfsv3]
PGD 1c14067 PUD 1c16067 PMD 0 
Oops: 0002 [#1] SMP 
Modules linked in: nfsv3 rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache cfg80211 rfkill snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep coretemp kvm_intel snd_seq snd_seq_device kvm crc32c_intel snd_pcm gpio_ich iTCO_wdt iTCO_vendor_support lpc_ich snd_timer snd soundcore ppdev dcdbas microcode serio_raw mei_me mei i7core_edac edac_core shpchp mfd_core i2c_i801 nfsd auth_rpcgss nfs_acl lockd sunrpc parport_pc parport acpi_cpufreq broadcom nouveau video mxm_wmi wmi i2c_algo_bit drm_kms_helper ttm drm uas tg3 usb_storage ptp i2c_core pps_core
CPU: 1 PID: 23946 Comm: patch Not tainted 3.15.8-200.fc20.x86_64 #1
Hardware name: Dell Inc. Vostro 430/054KM3, BIOS 2.2.0 07/06/2010
task: ffff88011ebc4520 ti: ffff880084648000 task.ti: ffff880084648000
RIP: 0010:[<ffffffffa055630b>]  [<ffffffffa055630b>] nfs3_list_one_acl+0x2b/0x80 [nfsv3]
RSP: 0018:ffff88008464be68  EFLAGS: 00010282
RAX: ffffffffffffffa1 RBX: ffff88008464bea0 RCX: 0000000000000000
RDX: 0000000000000058 RSI: 0000000000008000 RDI: ffff88008464be08
RBP: ffff88008464be90 R08: 0000000000000000 R09: ffff88008464bea0
R10: ffffffff811f1932 R11: ffffea0004e3a400 R12: 0000000000000000
R13: ffffffffa0557c2a R14: 0000000000000000 R15: 0000000000000000
FS:  00007f54e51db840(0000) GS:ffff88013fc40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffffffffffffffa1 CR3: 000000007de93000 CR4: 00000000000007e0
Stack:
 ffff88001c5211e0 0000000000000000 0000000000000000 0000000000000000
 0000000000000000 ffff88008464bec8 ffffffffa0556901 0000000000000000
 00000000deedc766 ffff880099924180 0000000000000000 0000000000000000
Call Trace:
 [<ffffffffa0556901>] nfs3_listxattr+0x51/0xa8 [nfsv3]
 [<ffffffff8120aef2>] vfs_listxattr+0x42/0x70
 [<ffffffff8120b1fd>] listxattr+0x10d/0x120
 [<ffffffff8120bf9b>] SyS_llistxattr+0x5b/0xa0
 [<ffffffff816ff9e9>] system_call_fastpath+0x16/0x1b
Code: 66 66 66 66 90 55 48 89 e5 41 57 49 89 cf 41 56 4d 8b 31 41 55 49 89 d5 41 54 4d 89 c4 53 4c 89 cb e8 9a dc ce e0 48 85 c0 74 32 <f0> ff 08 74 40 4c 89 ef e8 88 f0 df e0 48 03 03 4d 85 e4 48 8d 
RIP  [<ffffffffa055630b>] nfs3_list_one_acl+0x2b/0x80 [nfsv3]
 RSP <ffff88008464be68>
CR2: ffffffffffffffa1