Package: src:linux
Version: 3.16.7-ckt4-3
Severity: wishlist
File: /boot/vmlinuz-3.16.0-4-amd64
Tags: patch

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Hash: SHA256

Hi!

aufs is leaking the layer paths when looking at /proc/*/map_files:

$ ls -l /proc/$$/map_files | head
total 0
lr-------- 1 root root 64 févr. 23 10:25 400000-4aa000 -> 
/tmp/target/ro/bin/zsh5
lr-------- 1 root root 64 févr. 23 10:25 6a9000-6aa000 -> 
/tmp/target/ro/bin/zsh5
lr-------- 1 root root 64 févr. 23 10:25 6aa000-6b0000 -> 
/tmp/target/ro/bin/zsh5
lr-------- 1 root root 64 févr. 23 10:25 7fd1a73e1000-7fd1a73f1000 -> 
/tmp/target/ro/usr/lib/x86_64-linux-gnu/zsh/5.0.7/zsh/computil.so
lr-------- 1 root root 64 févr. 23 10:25 7fd1a73f1000-7fd1a75f0000 -> 
/tmp/target/ro/usr/lib/x86_64-linux-gnu/zsh/5.0.7/zsh/computil.so
lr-------- 1 root root 64 févr. 23 10:25 7fd1a75f0000-7fd1a75f1000 -> 
/tmp/target/ro/usr/lib/x86_64-linux-gnu/zsh/5.0.7/zsh/computil.so
lr-------- 1 root root 64 févr. 23 10:25 7fd1a75f1000-7fd1a75f2000 -> 
/tmp/target/ro/usr/lib/x86_64-linux-gnu/zsh/5.0.7/zsh/computil.so
lr-------- 1 root root 64 févr. 23 10:25 7fd1a75f3000-7fd1a75f5000 -> 
/tmp/target/ro/usr/lib/x86_64-linux-gnu/zsh/5.0.7/zsh/zleparameter.so
lr-------- 1 root root 64 févr. 23 10:25 7fd1a75f5000-7fd1a77f4000 -> 
/tmp/target/ro/usr/lib/x86_64-linux-gnu/zsh/5.0.7/zsh/zleparameter.so
 ro

This has been fixed in more recent versions of aufs (for example, the
one applied for 3.17 in experimental Debian packages). I don't have a
clean patch, but look at:

 
http://lists.alioth.debian.org/pipermail/kernel-svn-changes/2014-November/019612.html

I suppose the patch could be:

#v+
diff --git a/fs/proc/base.c b/fs/proc/base.c
index baf852b..6389b5e 100644
- --- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1764,7 +1764,7 @@ static int proc_map_files_get_link(struct dentry *dentry, 
struct path *path)
        down_read(&mm->mmap_sem);
        vma = find_exact_vma(mm, vm_start, vm_end);
        if (vma && vma->vm_file) {
- -             *path = vma->vm_file->f_path;
+               *path = vma_pr_or_file(vma)->f_path;
                path_get(path);
                rc = 0;
        }
#v-

Filed as wishlist as it may be too late to fix that for Jessie.

- -- Package-specific info:
** Kernel log: boot messages should be attached

** Model information
sys_vendor: LENOVO
product_name: 20A7005UMZ
product_version: ThinkPad X1 Carbon 2nd
chassis_vendor: LENOVO
chassis_version: Not Available
bios_vendor: LENOVO
bios_version: GRET39WW (1.16 )
board_vendor: LENOVO
board_name: 20A7005UMZ
board_version: SDK0E50510 Pro

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation Haswell-ULT DRAM Controller 
[8086:0a04] (rev 0b)
        Subsystem: Lenovo Device [17aa:2218]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort+ >SERR- <PERR- INTx-
        Latency: 0
        Capabilities: <access denied>

00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT 
Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA 
controller])
        Subsystem: Lenovo Device [17aa:2218]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 43
        Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
        Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Region 4: I/O ports at 3000 [size=64]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: <access denied>
        Kernel driver in use: i915

00:03.0 Audio device [0403]: Intel Corporation Haswell-ULT HD Audio Controller 
[8086:0a0c] (rev 0b)
        Subsystem: Lenovo Device [17aa:2218]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 42
        Region 0: Memory at f0530000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>
        Kernel driver in use: snd_hda_intel

00:14.0 USB controller [0c03]: Intel Corporation 8 Series USB xHCI HC 
[8086:9c31] (rev 04) (prog-if 30 [XHCI])
        Subsystem: Lenovo Device [17aa:2218]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 46
        Region 0: Memory at f0520000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: <access denied>
        Kernel driver in use: xhci_hcd

00:16.0 Communication controller [0780]: Intel Corporation 8 Series HECI #0 
[8086:9c3a] (rev 04)
        Subsystem: Lenovo Device [17aa:2218]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 45
        Region 0: Memory at f0539000 (64-bit, non-prefetchable) [size=32]
        Capabilities: <access denied>
        Kernel driver in use: mei_me

00:16.3 Serial controller [0700]: Intel Corporation 8 Series HECI KT 
[8086:9c3d] (rev 04) (prog-if 02 [16550])
        Subsystem: Lenovo Device [17aa:2218]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin D routed to IRQ 17
        Region 0: I/O ports at 30b0 [size=8]
        Region 1: Memory at f053f000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: <access denied>
        Kernel driver in use: serial

00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection 
I218-LM [8086:155a] (rev 04)
        Subsystem: Lenovo ThinkPad X240 [17aa:2214]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 48
        Region 0: Memory at f0500000 (32-bit, non-prefetchable) [size=128K]
        Region 1: Memory at f053e000 (32-bit, non-prefetchable) [size=4K]
        Region 2: I/O ports at 3080 [size=32]
        Capabilities: <access denied>
        Kernel driver in use: e1000e

00:1b.0 Audio device [0403]: Intel Corporation 8 Series HD Audio Controller 
[8086:9c20] (rev 04)
        Subsystem: Lenovo Device [17aa:2218]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 47
        Region 0: Memory at f0534000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>
        Kernel driver in use: snd_hda_intel

00:1c.0 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 6 
[8086:9c1a] (rev e4) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
        I/O behind bridge: 00002000-00002fff
        Memory behind bridge: dfb00000-dfcfffff
        Prefetchable memory behind bridge: 00000000dfd00000-00000000dfefffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort+ <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
                PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
        Capabilities: <access denied>
        Kernel driver in use: pcieport

00:1c.1 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 3 
[8086:9c14] (rev e4) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
        Memory behind bridge: f0400000-f04fffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
                PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
        Capabilities: <access denied>
        Kernel driver in use: pcieport

00:1d.0 USB controller [0c03]: Intel Corporation 8 Series USB EHCI #1 
[8086:9c26] (rev 04) (prog-if 20 [EHCI])
        Subsystem: Lenovo Device [17aa:2218]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 23
        Region 0: Memory at f053d000 (32-bit, non-prefetchable) [size=1K]
        Capabilities: <access denied>
        Kernel driver in use: ehci-pci

00:1f.0 ISA bridge [0601]: Intel Corporation 8 Series LPC Controller 
[8086:9c43] (rev 04)
        Subsystem: Lenovo Device [17aa:2218]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Capabilities: <access denied>
        Kernel driver in use: lpc_ich

00:1f.2 SATA controller [0106]: Intel Corporation 8 Series SATA Controller 1 
[AHCI mode] [8086:9c03] (rev 04) (prog-if 01 [AHCI 1.0])
        Subsystem: Lenovo Device [17aa:2218]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin B routed to IRQ 44
        Region 0: I/O ports at 30a8 [size=8]
        Region 1: I/O ports at 30bc [size=4]
        Region 2: I/O ports at 30a0 [size=8]
        Region 3: I/O ports at 30b8 [size=4]
        Region 4: I/O ports at 3060 [size=32]
        Region 5: Memory at f053c000 (32-bit, non-prefetchable) [size=2K]
        Capabilities: <access denied>
        Kernel driver in use: ahci

00:1f.3 SMBus [0c05]: Intel Corporation 8 Series SMBus Controller [8086:9c22] 
(rev 04)
        Subsystem: Lenovo Device [17aa:2218]
        Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR- INTx-
        Interrupt: pin C routed to IRQ 18
        Region 0: Memory at f0538000 (64-bit, non-prefetchable) [size=256]
        Region 4: I/O ports at efa0 [size=32]
        Kernel driver in use: i801_smbus

03:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b2] 
(rev 83)
        Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:c270]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 49
        Region 0: Memory at f0400000 (64-bit, non-prefetchable) [size=8K]
        Capabilities: <access denied>
        Kernel driver in use: iwlwifi


** USB devices:
Bus 001 Device 004: ID 04ca:7036 Lite-On Technology Corp. 
Bus 001 Device 003: ID 04f3:012d Elan Microelectronics Corp. 
Bus 001 Device 002: ID 8087:8000 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 019: ID 17ef:304f Lenovo 
Bus 003 Device 018: ID 2109:0812  
Bus 003 Device 017: ID 2109:0812  
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 011: ID 8087:07dc Intel Corp. 
Bus 002 Device 003: ID 138a:0017 Validity Sensors, Inc. 
Bus 002 Device 104: ID 1199:a001 Sierra Wireless, Inc. 
Bus 002 Device 105: ID 0853:0111 Topre Corporation 
Bus 002 Device 103: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 002 Device 102: ID 1a40:0101 Terminus Technology Inc. 4-Port HUB
Bus 002 Device 107: ID 17ef:304e Lenovo 
Bus 002 Device 106: ID 2109:2812  
Bus 002 Device 101: ID 2109:2812  
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


- -- System Information:
Debian Release: 8.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (101, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.19.0-trunk-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages linux-image-3.16.0-4-amd64 depends on:
ii  debconf [debconf-2.0]                   1.5.55
ii  initramfs-tools [linux-initramfs-tool]  0.118
ii  kmod                                    18-3
ii  linux-base                              3.5

Versions of packages linux-image-3.16.0-4-amd64 recommends:
ii  firmware-linux-free  3.3
ii  irqbalance           1.0.6-3

Versions of packages linux-image-3.16.0-4-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  extlinux                3:6.03+dfsg-5
ii  grub-efi                2.02~beta2-21
pn  linux-doc-3.16          <none>

Versions of packages linux-image-3.16.0-4-amd64 is related to:
pn  firmware-atheros        <none>
pn  firmware-bnx2           <none>
pn  firmware-bnx2x          <none>
pn  firmware-brcm80211      <none>
pn  firmware-intelwimax     <none>
pn  firmware-ipw2x00        <none>
pn  firmware-ivtv           <none>
ii  firmware-iwlwifi        0.43
pn  firmware-libertas       <none>
ii  firmware-linux          0.43
ii  firmware-linux-nonfree  0.43
pn  firmware-myricom        <none>
pn  firmware-netxen         <none>
pn  firmware-qlogic         <none>
pn  firmware-ralink         <none>
pn  firmware-realtek        <none>
pn  xen-hypervisor          <none>

- -- debconf information excluded

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