Hi, I have a rev.1 Raspberry Pi board I got on June. Since having it, I've been suffering from occasional corruption on the SD when booting/rebooting. At first I thought it was due to early software issues. But with latest updated Raspbian (as of 2012.10.12) I was still having corruption sometimes, so I decided to perform some systematic tests. I wrote a simple program that rebooted the Pi remotely using SSH every 90 seconds, and I found that after a number of reboots (between 3 and 50 in my tests), at last the rootfs always gets corrupted and the system doesn't boot anymore. Boot FAT partition seems to be unaffected.
To reboot the pi I used "sudo reboot". The memory split was 128/128, no overclock. The tests were performed with just the ethernet port and either hdmi or composite out connected, nothing in the usb ports. I tried with three different SD cards and several power supplies and when possible a short (1 m) cable. F3 resistance is 0.2-0.3 ohms, I also measured voltage between TP1 and TP2.
SD cards: Lexar 4 GB class 6, Lexar 8 GB class 4, old TakeMs 2 GB 60x speed.
LG mobile charger 700 mA 5.1V with short cable, TP1-TP2: 4.82V
Nokia mobile charger 1200 mA 5.1V with non-removable longer cable, TP1-TP2: 4.72V
Apple Iphone charger 1000 mA 5V with short cable, TP1-TP2: 4.80V
Samsung tablet charget 2000 mA 5V with short cable, TP1-TP2: 4.70V
The stablest charger seems to be the LG one.
I was thinking to try with a differend brand SD card as last attempt, but beginning to believe my Pi was faulty, however recently I read that some people was having similar issues even with different boards (http://www.raspberrypi.org/phpBB3/viewt ... 28&t=21204
), so I don't know what to think. I also read about a guy with cold solder joints on the SD slot that fixed his Pi resoldering them, and other that fixed his overclocking corruption by soldering a ceramic capacitor to SD power... Any ideas or recommendations?