/tmp/run/mountd/mmcblk0p1 has expired... unmounting

[rali717]

My 4 primary partitions on the sd-Card get unmount after some minutes when there are unused.

with version
omega2p-v0.1.8-b145.bin

logread
...
Fri Jan 13 21:01:59 2017 daemon.info dnsmasq-dhcp[2008]: read /etc/ethers - 0 addresses
Fri Jan 13 21:02:04 2017 kern.info kernel: [ 55.006602]
Fri Jan 13 21:02:04 2017 kern.info kernel: [ 55.006602] do_page_fault(): sending SIGSEGV to ash for invalid read access from 6e69622f
Fri Jan 13 21:02:04 2017 kern.info kernel: [ 55.016186] epc = 773c1ca4 in libc.so[77350000+92000]
Fri Jan 13 21:02:04 2017 kern.info kernel: [ 55.023904] ra = 773c362c in libc.so[77350000+92000]
Fri Jan 13 21:02:04 2017 kern.info kernel: [ 55.029175]
Fri Jan 13 21:02:04 2017 kern.warn kernel: [ 55.030919] ttyS0: 1 input overrun(s)
Fri Jan 13 21:02:10 2017 user.crit mountd[2157]: Starting OpenWrt (auto)mountd V1
Fri Jan 13 21:02:10 2017 user.crit mountd[2157]: trying to mount /tmp/run/mountd/ as the autofs root
Fri Jan 13 21:02:10 2017 user.notice : setting up led On
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: could not find a serial number for the device mmcblk0
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: new mount : SD-P4 -> mmcblk0p4 (ext2)
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: mounting /tmp/run/mountd/mmcblk0p4
Fri Jan 13 21:02:11 2017 user.crit mountd[2232]: mount -t ext2 -o rw,defaults /dev/mmcblk0p4 /tmp/run/mountd/mmcblk0p4
Fri Jan 13 21:02:11 2017 kern.info kernel: [ 61.798771] EXT4-fs (mmcblk0p4): mounting ext2 file system using the ext4 subsystem
Fri Jan 13 21:02:11 2017 kern.info kernel: [ 61.868789] EXT4-fs (mmcblk0p4): mounted filesystem without journal. Opts: (null)
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: ----------> mount ret = 0
Fri Jan 13 21:02:11 2017 daemon.info procd: - init complete -
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: could not find a serial number for the device mmcblk0
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: new mount : SD-P3 -> mmcblk0p3 (ext2)
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: mounting /tmp/run/mountd/mmcblk0p3
Fri Jan 13 21:02:11 2017 user.crit mountd[2249]: mount -t ext2 -o rw,defaults /dev/mmcblk0p3 /tmp/run/mountd/mmcblk0p3
Fri Jan 13 21:02:11 2017 kern.info kernel: [ 62.026580] EXT4-fs (mmcblk0p3): mounting ext2 file system using the ext4 subsystem
Fri Jan 13 21:02:11 2017 kern.info kernel: [ 62.136892] EXT4-fs (mmcblk0p3): mounted filesystem without journal. Opts: (null)
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: ----------> mount ret = 0
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: could not find a serial number for the device mmcblk0
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: new mount : SD-P2 -> mmcblk0p2 (ext2)
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: mounting /tmp/run/mountd/mmcblk0p2
Fri Jan 13 21:02:11 2017 user.crit mountd[2258]: mount -t ext2 -o rw,defaults /dev/mmcblk0p2 /tmp/run/mountd/mmcblk0p2
Fri Jan 13 21:02:11 2017 kern.info kernel: [ 62.213360] EXT4-fs (mmcblk0p2): mounting ext2 file system using the ext4 subsystem
Fri Jan 13 21:02:11 2017 kern.info kernel: [ 62.239561] EXT4-fs (mmcblk0p2): mounted filesystem without journal. Opts: (null)
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: ----------> mount ret = 0
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: could not find a serial number for the device mmcblk0
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: new mount : SD-P1 -> mmcblk0p1 (ext2)
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: mounting /tmp/run/mountd/mmcblk0p1
Fri Jan 13 21:02:11 2017 user.crit mountd[2268]: mount -t ext2 -o rw,defaults /dev/mmcblk0p1 /tmp/run/mountd/mmcblk0p1
Fri Jan 13 21:02:11 2017 kern.info kernel: [ 62.296115] EXT4-fs (mmcblk0p1): mounting ext2 file system using the ext4 subsystem
Fri Jan 13 21:02:11 2017 user.crit mountd[2157]: ----------> mount ret = 0
Fri Jan 13 21:02:11 2017 kern.info kernel: [ 62.319076] EXT4-fs (mmcblk0p1): mounted filesystem without journal. Opts: (null)
Sat Jan 14 00:04:35 2017 authpriv.info dropbear[2280]: Child connection from 192.168.1.107:47962
Sat Jan 14 00:04:44 2017 authpriv.notice dropbear[2280]: Password auth succeeded for 'root' from 192.168.1.107:47962
Sat Jan 14 00:05:04 2017 daemon.info dnsmasq[2008]: read /etc/hosts - 4 addresses
Sat Jan 14 00:05:04 2017 daemon.info dnsmasq[2008]: read /tmp/hosts/odhcpd - 0 addresses
Sat Jan 14 00:05:04 2017 daemon.info dnsmasq[2008]: read /tmp/hosts/dhcp.cfg02411c - 0 addresses
Sat Jan 14 00:05:04 2017 daemon.info dnsmasq-dhcp[2008]: read /etc/ethers - 0 addresses
Sat Jan 14 00:06:00 2017 user.crit mountd[2157]: /tmp/run/mountd/mmcblk0p1 has expired... unmounting
Sat Jan 14 00:06:00 2017 user.crit mountd[2157]: finished unmounting
Sat Jan 14 00:06:00 2017 user.crit mountd[2157]: /tmp/run/mountd/mmcblk0p2 has expired... unmounting
Sat Jan 14 00:06:00 2017 user.crit mountd[2157]: finished unmounting
Sat Jan 14 00:06:00 2017 user.crit mountd[2157]: /tmp/run/mountd/mmcblk0p3 has expired... unmounting
Sat Jan 14 00:06:00 2017 user.crit mountd[2157]: finished unmounting
Sat Jan 14 00:06:00 2017 user.crit mountd[2157]: /tmp/run/mountd/mmcblk0p4 has expired... unmounting
Sat Jan 14 00:06:00 2017 user.crit mountd[2157]: finished unmounting
Sat Jan 14 00:07:19 2017 authpriv.info dropbear[2313]: Child connection from 192.168.1.107:47976
Sat Jan 14 00:07:24 2017 authpriv.notice dropbear[2313]: Password auth succeeded for 'root' from 192.168.1.107:47976

It does not show this log in dmesg.

[ 32.655489] Channel 10 : Dirty = 40, False CCA = 0, Busy Time = 383, Skip Channel = FALSE
[ 32.663816] Channel 11 : Dirty = 0, False CCA = 0, Busy Time = 1103, Skip Channel = FALSE
[ 32.672140] =====================================================
[ 32.678341] Rule 1 CCA value : Min Dirtiness (Include extension channel) ==> Select Channel 11
[ 32.687192] Min Dirty = 0
[ 32.689881] ExChannel = 0 , 0
[ 32.692908] BW = 20
[ 32.724903] br-wlan: port 2(ra0) entered forwarding state
[ 32.730539] br-wlan: port 2(ra0) entered forwarding state
[ 34.728726] br-wlan: port 2(ra0) entered forwarding state
[ 38.342722] !!! APCLI LINK UP - IF(apcli0) AuthMode(7)=WPA2PSK, WepStatus(6)=AES!
[ 55.006602]
[ 55.006602] do_page_fault(): sending SIGSEGV to ash for invalid read access from 6e69622f
[ 55.016186] epc = 773c1ca4 in libc.so[77350000+92000]
[ 55.023904] ra = 773c362c in libc.so[77350000+92000]
[ 55.029175]
[ 55.030919] ttyS0: 1 input overrun(s)
[ 61.798771] EXT4-fs (mmcblk0p4): mounting ext2 file system using the ext4 subsystem
[ 61.868789] EXT4-fs (mmcblk0p4): mounted filesystem without journal. Opts: (null)
[ 62.026580] EXT4-fs (mmcblk0p3): mounting ext2 file system using the ext4 subsystem
[ 62.136892] EXT4-fs (mmcblk0p3): mounted filesystem without journal. Opts: (null)
[ 62.213360] EXT4-fs (mmcblk0p2): mounting ext2 file system using the ext4 subsystem
[ 62.239561] EXT4-fs (mmcblk0p2): mounted filesystem without journal. Opts: (null)
[ 62.296115] EXT4-fs (mmcblk0p1): mounting ext2 file system using the ext4 subsystem
[ 62.319076] EXT4-fs (mmcblk0p1): mounted filesystem without journal. Opts: (null)

root@Omega-80BF:~# df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 5.5M 5.5M 0 100% /rom
tmpfs 61.4M 188.0K 61.2M 0% /tmp
/dev/mtdblock6 25.0M 6.0M 19.0M 24% /overlay
overlayfs:/overlay 25.0M 6.0M 19.0M 24% /
tmpfs 512.0K 0 512.0K 0% /dev
/dev/mmcblk0p4 11.5G 29.1M 10.8G 0% /tmp/run/mountd/mmcblk0p4
/dev/mmcblk0p3 1007.9M 1.3M 955.4M 0% /tmp/run/mountd/mmcblk0p3
/dev/mmcblk0p2 1007.9M 1.3M 955.4M 0% /tmp/run/mountd/mmcblk0p2
/dev/mmcblk0p1 1007.9M 1.2M 955.5M 0% /tmp/run/mountd/mmcblk0p1

against

root@Omega-80BF:~# df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 5.5M 5.5M 0 100% /rom
tmpfs 61.4M 192.0K 61.2M 0% /tmp
/dev/mtdblock6 25.0M 5.9M 19.1M 24% /overlay
overlayfs:/overlay 25.0M 5.9M 19.1M 24% /
tmpfs 512.0K 0 512.0K 0% /dev