Dear all,
sometime ago i moved from uclinux kernel to main line kernel 2.6.36.2,
trying to have some fix to some issues on a custom coldfire (m5307)
board. At the end, issues was hardware related. By the way, the system
seems not to be stable, sometime the network is no more reachable,
sometime the device reboot, sometime inetd crash using ftpd ....
I did a review again of the hardware of my board that actually is a
prototype, and found maybe some soldering issues. System seems now more
stable, by the way, i have some questions:
- Do you suggest i roll back to last uClinux kernel, found on last
updated uClinux for coldfire ?
- Using busybox ping, i get a single reply and then the program exit. Is
this a standard behaviour ?
- I have actually read-only fs with 2 ram image fs ("/var" and
"/home/user1"). I would like to have the chance to save some files,
mostly log/ oops dump and find it back at next reboot (save it to the
flash). Is there some tutorial/link for this ?
- any other suggestions to catch this strange
Below some useful info
SYSTEM:
MCF5307
4MB SST 39VF3201B flash
16MB Micron sdram memory
dm9000 ethernet chip
/ # cat /proc/version
uClinux version 2.6.36.2 (angelo@angel7) (gcc version 4.2.4) #37 PREEMPT
Mon Jan 10 08:44:33 CET 2011
/ # cat /proc/cpuinfo
CPU: COLDFIRE(m5307)
MMU: none
FPU: none
Clocking: 88.4MHz
BogoMips: 58.98
Calibration: 29491200 loops
/ # cat /proc/meminfo
MemTotal: 14032 kB
MemFree: 7848 kB
Buffers: 16 kB
Cached: 192 kB
SwapCached: 0 kB
Active: 88 kB
Inactive: 116 kB
Active(anon): 0 kB
Inactive(anon): 0 kB
Active(file): 88 kB
Inactive(file): 116 kB
Unevictable: 0 kB
Mlocked: 0 kB
MmapCopy: 528 kB
SwapTotal: 0 kB
SwapFree: 0 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 0 kB
Mapped: 0 kB
Shmem: 0 kB
Slab: 1240 kB
SReclaimable: 112 kB
SUnreclaim: 1128 kB
KernelStack: 84 kB
PageTables: 0 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 7016 kB
Committed_AS: 0 kB
VmallocTotal: 0 kB
VmallocUsed: 0 kB
VmallocChunk: 0 kB
/ #
TOP
Mem: 6248K used, 7784K free, 0K shrd, 16K buff, 196K cached
CPU: 0% usr 1% sys 0% nice 97% idle 0% io 0% irq 0% softirq
Load average: 0.00 0.00 0.00
PID PPID USER STAT VSZ %MEM %CPU COMMAND
191 185 root R 273 2% 2% top
34 1 root S 275 2% 0% telnetd -l /bin/sh
40 1 root S 272 2% 0% -sh
185 34 root S 272 2% 0% /bin/sh
37 1 root S 272 2% 0% inetd
1 0 root S 271 2% 0% init
36 1 root S 271 2% 0% �ttpd -h /home/httpd
14 2 root SW 0 0% 0% [kworker/0:1]
2 0 root SW 0 0% 0% [kthreadd]
6 2 root SW 0 0% 0% [watchdog/0]
8 2 root SW 0 0% 0% [sync_supers]
13 2 root SW 0 0% 0% [mtdblock0]
10 2 root SW< 0 0% 0% [kblockd]
11 2 root SW 0 0% 0% [kseriod]
12 2 root SW 0 0% 0% [kswapd0]
3 2 root SW 0 0% 0% [ksoftirqd/0]
5 2 root SW 0 0% 0% [kworker/u:0]
183 2 root SW 0 0% 0% [kworker/0:2]
7 2 root SW< 0 0% 0% [khelper]
186 2 root SW 0 0% 0% [kworker/0:0]
9 2 root SW 0 0% 0% [bdi-default]
many thanks
angelo
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