Is anyone could help us ?
We have had troubles of SD card crash with TS-7260 on our products.
* using TS-7260 (TS-Linux, 2.4.26-ts11) with SD card option.
* SD card is TS2GSDC by Transcend.
* using sdcrad.o of the version Feb 22 2007.
* insmod it without any option ( no "dmaenable" ).
* SD card has only one partition of EXT2,
we mount it with "rw,noatime,nodiratime".
When we want to reset the machine by remote, we did :
* kill all SD card accesing procsses.
* do "sync".
* unmount the SD card partition.
* request UPS (by serial communication) to cut off the power
to the TS-7260 (and on the power again soon).
( note, we do not halt the Linux by itself. )
After the process above, we found some of the SD card crashed and
cannot mount them on next boot, at a ceratain possibility (roughly 1
in 10 trials).
Some of the crashed cards has no partition table, and we cannot write
the table (with fdisk, or tools on Windows) any more. Others are
seriously physically damaged, and TS-7260 would freeze with them at
"insmod sdcard".
Does someone has any idea of the cause ? Or tips to avoid those troubles ?
--
Takuya Kato
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