** Description changed:

  Hi,
  
- I just bought a brand new motherboard/CPU/RAM/VideoCard/SSD and got
- affected by a bug I can easily reproduce as mach as I want
- 
+ I just bought a brand new motherboard/CPU/RAM/VideoCard/SSD.
  Added to the hardware above, I've got a 2*500GB RAID0 disks and a 2TB disk 
through my NAS (mounted via NFS)
  As I was retrieving my save from my NAS, everytime I tried to copy (either a 
file or the whole directory), nautilus crashes and sometimes got a kernel panic 
(a reboot was needed).
+ 
+ This bug only happens when I tried to copy from the NAS, not when it's a 
local copy (from RAID HDDs to SSD for example)
+ The crash or kernel panic only happens at the beginning or the end of the 
copy (progress bar appears and it crashes or the progress bar starts, stops 
after the first file copied and it crashes)
  
  Attached is the kern.log where you can see error happening since the
  beginning of the file (I tried different scenario of copy every
  evening).
  
  Crash of nautilus :
  Dec  7 18:19:08 MavDesktop kernel: [   24.958869] ------------[ cut here 
]------------
  Dec  7 18:19:08 MavDesktop kernel: [   24.958876] WARNING: at 
/build/buildd/linux-3.7.0/arch/x86/kernel/apic/ipi.c:109 
default_send_IPI_mask_logical+0xb2/0xf0()
  Dec  7 18:19:08 MavDesktop kernel: [   24.958877] Hardware name: To be filled 
by O.E.M.
  Dec  7 18:19:08 MavDesktop kernel: [   24.958878] empty IPI mask
  Dec  7 18:19:08 MavDesktop kernel: [   24.958879] Modules linked in: rfcomm 
bnep bluetooth parport_pc(F) ppdev(F) nfsv4(F) nfsd(F) nfs_acl(F) 
auth_rpcgss(F) nfs(F) fscache(F) lockd(F) sunrpc(F) snd_hda_codec_hdmi 
snd_usb_audio snd_usbmidi_lib coretemp kvm joydev(F) hid_logitech ff_memless 
psmouse(F) snd_hda_codec_realtek microcode(F) serio_raw(F) gspca_stv06xx 
gspca_main videodev usbhid hid snd_hda_intel snd_hda_codec snd_seq_midi(F) 
snd_rawmidi(F) nvidia(POF) snd_seq_midi_event(F) snd_seq(F) snd_hwdep(F) 
snd_pcm(F) mei lpc_ich snd_timer(F) snd_seq_device(F) snd(F) soundcore(F) 
snd_page_alloc(F) mac_hid video(F) lp(F) parport(F) usb_storage(F) uas reiserfs 
raid10(F) raid456(F) async_raid6_recov(F) async_pq(F) raid6_pq(F) async_xor(F) 
atl1c xor(F) async_memcpy(F) async_tx(F) raid1(F) raid0(F) multipath(F) 
linear(F)
  Dec  7 18:19:08 MavDesktop kernel: [   24.958922] Pid: 1915, comm: nautilus 
Tainted: PF          O 3.7.0-4-generic #12-Ubuntu
  Dec  7 18:19:08 MavDesktop kernel: [   24.958923] Call Trace:
  Dec  7 18:19:08 MavDesktop kernel: [   24.958928]  [<c1049d82>] 
warn_slowpath_common+0x72/0xa0
  Dec  7 18:19:08 MavDesktop kernel: [   24.958930]  [<c10328f2>] ? 
default_send_IPI_mask_logical+0xb2/0xf0
  Dec  7 18:19:08 MavDesktop kernel: [   24.958933]  [<c10328f2>] ? 
default_send_IPI_mask_logical+0xb2/0xf0
  Dec  7 18:19:08 MavDesktop kernel: [   24.958935]  [<c1049e53>] 
warn_slowpath_fmt+0x33/0x40
  Dec  7 18:19:08 MavDesktop kernel: [   24.958937]  [<c10328f2>] 
default_send_IPI_mask_logical+0xb2/0xf0
  Dec  7 18:19:08 MavDesktop kernel: [   24.958941]  [<c1030975>] 
native_send_call_func_ipi+0x45/0x60
  Dec  7 18:19:08 MavDesktop kernel: [   24.958944]  [<c10a3fd2>] 
smp_call_function_many+0x172/0x200
  Dec  7 18:19:08 MavDesktop kernel: [   24.958946]  [<c10a42c1>] ? 
generic_smp_call_function_interrupt+0xd1/0x170
  Dec  7 18:19:08 MavDesktop kernel: [   24.958949]  [<c1042480>] ? 
do_flush_tlb_all+0x50/0x50
  Dec  7 18:19:08 MavDesktop kernel: [   24.958952]  [<c104255b>] 
native_flush_tlb_others+0x2b/0x30
  Dec  7 18:19:08 MavDesktop kernel: [   24.958955]  [<c1042800>] 
flush_tlb_page+0x50/0xa0
  Dec  7 18:19:08 MavDesktop kernel: [   24.958958]  [<c1041206>] 
ptep_set_access_flags+0x66/0x80
  Dec  7 18:19:08 MavDesktop kernel: [   24.958961]  [<c112b391>] 
do_wp_page+0x3d1/0x910
  Dec  7 18:19:08 MavDesktop kernel: [   24.958964]  [<c1030b95>] ? 
smp_call_function_interrupt+0x35/0x40
  Dec  7 18:19:08 MavDesktop kernel: [   24.958967]  [<c112d5a4>] 
handle_pte_fault+0x234/0x520
  Dec  7 18:19:08 MavDesktop kernel: [   24.958969]  [<c1043797>] ? 
kmap_atomic_prot+0xe7/0x100
  Dec  7 18:19:08 MavDesktop kernel: [   24.958972]  [<c112e8dd>] 
handle_mm_fault+0x1ed/0x290
  Dec  7 18:19:08 MavDesktop kernel: [   24.958976]  [<c15f89e1>] 
__do_page_fault+0x181/0x4b0
  Dec  7 18:19:08 MavDesktop kernel: [   24.958980]  [<c10a2fe0>] ? 
sys_futex+0x80/0x130
  Dec  7 18:19:08 MavDesktop kernel: [   24.958982]  [<c105238c>] ? 
irq_exit+0x5c/0xa0
  Dec  7 18:19:08 MavDesktop kernel: [   24.958985]  [<c15f8d10>] ? 
__do_page_fault+0x4b0/0x4b0
  Dec  7 18:19:08 MavDesktop kernel: [   24.958987]  [<c15f8d1d>] 
do_page_fault+0xd/0x10
  Dec  7 18:19:08 MavDesktop kernel: [   24.958990]  [<c15f5cf7>] 
error_code+0x67/0x6c
  Dec  7 18:19:08 MavDesktop kernel: [   24.958993]  [<c15f0000>] ? 
acpi_pci_osc_support+0x3b/0x7a
  Dec  7 18:19:08 MavDesktop kernel: [   24.958995] ---[ end trace 
fc4007fa5f7b2d6f ]---
  
  Kernel OOps :
  ligne 14045-14350 of kern.log attached

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https://bugs.launchpad.net/bugs/1087935

Title:
  Empty IPI mask - Nautilus crash or kernel panic

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