Hello,
On some of our RUT955 devices the SIM card information (APN, PIN, etc) got erased. Could this be due to high flash memory usage (barely space left)? We install the routers in vehicles (eg busses), so there are vibrations and shocks too.
We also got CRC errors, which might be related to the issue:
jffs2: warning: (354) jffs2_sum_scan_sumnode: Summary node crc error, skipping summary information.
[ 7.330000] jffs2: jffs2_scan_eraseblock(): Node at 0x00104824 {0x1985, 0xe001, 0x2000002c) has invalid CRC 0xa026b184 (calculated 0x00141eba)
[ 7.330000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00104828: 0x2000 instead
[ 7.330000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0010482c: 0xa026 instead
[ 7.330000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00104840: 0x0400 instead
[ 7.330000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00104844: 0x6ad9 instead
[ 7.330000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00104848: 0x720a instead
[ 7.330000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0010484c: 0x776f instead
[ 7.380000] jffs2: notice: (354) jffs2_build_xattr_subsystem: complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.
[ 7.380000] block: attempting to load /tmp/jffs_cfg/upper/etc/config/fstab
...
[14.430000] jffs2: notice: (356) check_node_data: wrong data CRC in data node at 0x0017c8a8: read 0xb299f990, calculated 0xb5c4ffd0. [ 14.430000] jffs2: warning: (356) jffs2_do_read_inode_internal: no data nodes found for ino #170 [ 14.430000] jffs2: Returned error for crccheck of ino #170. Expect badness...
...
ffs2: warning: (4101) jffs2_get_inode_nodes: Eep. No valid nodes for ino #170.
[ 80.820000] jffs2: warning: (4101) jffs2_do_read_inode_internal: no data nodes found for ino #170
[ 80.830000] jffs2: iget() failed for ino #170
[ 81.530000] jffs2: warning: (4077) jffs2_get_inode_nodes: Eep. No valid nodes for ino #170.
[ 81.530000] jffs2: warning: (4077) jffs2_do_read_inode_internal: no data nodes found for ino #170
Firmware version: RUT9XX_R_GPL_00.06.07.5
Bootloader version: 3.2.1
Best regards,
Oskar