what is jffs2_gcd_mtd6 doing ?

[Harald Koenig]

Hi,

few (7) minutes after update/upgrade/reboot took quite a large amount 
of CPU-time (80+ %) :

top - 00:48:00 up 7 min,  1 user,  load average: 2.97, 3.27, 1.79
Tasks:  67 total,   2 running,  65 sleeping,   0 stopped,   0 zombie
Cpu(s):  8.8%us, 90.9%sy,  0.0%ni,  0.0%id,  0.0%wa,  0.0%hi,  0.3%si,  0.0%st
Mem:    123856k total,   121692k used,     2164k free,      516k buffers
Swap:        0k total,        0k used,        0k free,    68276k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 1219 root      30  10     0    0    0 R 79.3  0.0   2:13.84 jffs2_gcd_mtd6
 1576 root      20   0 17188 9068 4880 S  5.0  7.3   0:37.13 enlightenment
 1531 root      20   0  2388 1144  896 R  3.8  0.9   0:13.77 top
 1496 root       9 -11 18860 5064 2460 S  2.4  4.1   0:22.12 pulseaudio
 1398 messageb  20   0  2248  864  640 S  0.9  0.7   0:02.18 dbus-daemon
 1497 root      20   0  2400  912  728 S  0.9  0.7   0:01.99 dropbear


now it's idle again:

root at om-gta02:~# uptime
 00:51:30 up 10 min,  1 user,  load average: 1.21, 2.45, 1.76
root at om-gta02:~# ps up 1219
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root      1219 25.4  0.0      0     0 ?        SN   00:41   2:28 [jffs2_gcd_mtd6]


here is a list of the processes with the top absolute cpu usage so far:

root at om-gta02:~# uptime
 00:55:41 up 14 min,  1 user,  load average: 0.36, 1.29, 1.44
root at om-gta02:~# ps uax | sort -b -k10 -r | head
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root      1219 17.8  0.0      0     0 ?        SN   00:41   2:28 [jffs2_gcd_mtd6]
root      1576  7.4  7.7  17716  9616 ?        S    00:43   0:55 enlightenment -profile illume
root      1577  6.0 17.1  86900 21232 ?        Sl   00:43   0:45 qpe
root      1528  4.0  3.8   7680  4792 ?        S<   00:43   0:30 /usr/bin/Xglamo :0 -pn +extension Composite -dpi 285 -screen 480x640 -hide-cursor -br
root      1496  3.3  4.0  18796  5076 ?        S<Lsl 00:42   0:25 /usr/bin/pulseaudio --no-cpu-limit --resample-method=trivial -D -nF /etc/pulse/session
root      1626  2.2 11.8  26152 14672 ?        Ss   00:45   0:13 python /usr/bin/battery.py
root         1  1.0  0.4   1516   560 ?        Ss   00:41   0:09 init [5]               
root      1537  1.2  0.8   2508  1020 ?        Ss   00:43   0:09 /usr/bin/dbus-daemon --fork --print-pid 4 --print-address 6 --session
44        1398  0.7  0.6   2248   864 ?        Ss   00:42   0:06 /usr/bin/dbus-daemon --system


Harald
--
"I hope to die                                      ___       _____
before I *have* to use Microsoft Word.",           0--,|    /OOOOOOO\
Donald E. Knuth, 02-Oct-2001 in Tuebingen.        <_/  /  /OOOOOOOOOOO\
                                                    \  \/OOOOOOOOOOOOOOO\
                                                      \ OOOOOOOOOOOOOOOOO|//
                                                       \/\/\/\/\/\/\/\/\/
Harald Koenig                                           //  /     \\  \
koenig at tat.physik.uni-tuebingen.de                     ^^^^^       ^^^^^