I tested this :
http://unix.stackexchange.com/questi...ep/25151#25151
I monitor this issue.
In the log when the problem appared (approximatly 15:15 in France), execpt the ping requests, I have this:
Nov 6 15:16:05 MrPatate kernel: [335226.343875] device-mapper: uevent: version 1.0.3
Nov 6 15:16:05 MrPatate kernel: [335226.345126] device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised:
dm-devel@redhat.com
Nov 6 15:16:07 MrPatate kernel: [335228.702565] EFI Variables Facility v0.08 2004-May-17
Nov 6 15:16:08 MrPatate kernel: [335229.155737] SGI XFS with ACLs, security attributes, realtime, large block/inode numbers, no debug enabled
Nov 6 15:16:08 MrPatate kernel: [335229.156768] SGI XFS Quota Management subsystem
Nov 6 15:16:08 MrPatate kernel: [335229.175163] JFS: nTxBlock = 8192, nTxLock = 65536
Nov 6 15:16:08 MrPatate kernel: [335229.226028] NTFS driver 2.1.30 [Flags: R/W MODULE].
Nov 6 15:16:08 MrPatate kernel: [335229.301160] QNX4 filesystem 0.2.3 registered.
Nov 6 15:16:08 MrPatate kernel: [335229.427322] Btrfs loaded
Nov 6 15:16:08 MrPatate kernel: [335229.445979] fuse init (API version 7.17)
Nov 6 15:16:08 MrPatate os-prober: debug: running /usr/lib/os-probes/50mounted-tests on /dev/sda2
Nov 6 15:16:08 MrPatate 50mounted-tests: debug: /dev/sda2 type not recognised; skipping
Nov 6 15:16:08 MrPatate os-prober: debug: os detected by /usr/lib/os-probes/50mounted-tests
Nov 6 15:16:08 MrPatate os-prober: debug: /dev/sda5: is active swap
Nov 6 15:16:08 MrPatate os-prober: debug: running /usr/lib/os-probes/50mounted-tests on /dev/sdb1
Nov 6 15:16:09 MrPatate 50mounted-tests: debug: mounted using GRUB ext2 filesystem driver
Nov 6 15:16:09 MrPatate 50mounted-tests: debug: running subtest /usr/lib/os-probes/mounted/05efi
Nov 6 15:16:09 MrPatate 05efi: debug: Not on UEFI platform
Nov 6 15:16:09 MrPatate 50mounted-tests: debug: running subtest /usr/lib/os-probes/mounted/10freedos
Nov 6 15:16:09 MrPatate 10freedos: debug: /dev/sdb1 is not a FAT partition: exiting
Nov 6 15:16:09 MrPatate 50mounted-tests: debug: running subtest /usr/lib/os-probes/mounted/10qnx
Nov 6 15:16:09 MrPatate 10qnx: debug: /dev/sdb1 is not a QNX4 partition: exiting
Nov 6 15:16:09 MrPatate 50mounted-tests: debug: running subtest /usr/lib/os-probes/mounted/20macosx
Nov 6 15:16:09 MrPatate macosx-prober: debug: /dev/sdb1 is not an HFS+ partition: exiting
Nov 6 15:16:09 MrPatate 50mounted-tests: debug: running subtest /usr/lib/os-probes/mounted/20microsoft
Nov 6 15:16:09 MrPatate 20microsoft: debug: /dev/sdb1 is not a MS partition: exiting
Nov 6 15:16:09 MrPatate 50mounted-tests: debug: running subtest /usr/lib/os-probes/mounted/30utility
Nov 6 15:16:09 MrPatate 30utility: debug: /dev/sdb1 is not a FAT partition: exiting
Nov 6 15:16:09 MrPatate 50mounted-tests: debug: running subtest /usr/lib/os-probes/mounted/40lsb
Nov 6 15:16:09 MrPatate 50mounted-tests: debug: running subtest /usr/lib/os-probes/mounted/70hurd
Nov 6 15:16:09 MrPatate 50mounted-tests: debug: running subtest /usr/lib/os-probes/mounted/80minix
Nov 6 15:16:09 MrPatate 50mounted-tests: debug: running subtest /usr/lib/os-probes/mounted/83haiku
Nov 6 15:16:09 MrPatate 83haiku: debug: /dev/sdb1 is not a BeFS partition: exiting
Nov 6 15:16:09 MrPatate 50mounted-tests: debug: running subtest /usr/lib/os-probes/mounted/90linux-distro
Nov 6 15:16:09 MrPatate 50mounted-tests: debug: running subtest /usr/lib/os-probes/mounted/90solaris
Nov 6 15:16:09 MrPatate 50mounted-tests: debug: running subtest /usr/lib/os-probes/mounted/efi
Nov 6 15:16:09 MrPatate os-prober: debug: running /usr/lib/os-probes/50mounted-tests on /dev/sdc1