Opened 2 years ago

Closed 21 months ago

Last modified 21 months ago

#4724 closed (fixed)

NVRAM out of memory / NVRAM backup file only 8 bytes

Reported by: KrypteX Owned by:
Keywords: Cc:

Description

NVRAM backup file is only 8 bytes in builds 27396 and latest 27456 on WZR-HP-G300NH http://www.dd-wrt.com/phpBB2/viewtopic.php?p=972785#972785

Possible cause: http://svn.dd-wrt.com/changeset/27341

Change History (10)

comment:1 Changed 2 years ago by KrypteX

Tried to create NVRAM backup on my WNDR3800 with r27456 and it works just fine... it might only be an issue with Buffalo and/or WZR-HP-G300NH

comment:2 Changed 2 years ago by KrypteX

Resolution: invalid
Status: newclosed

Problem caused by the user's wrong approach: nvram settings were restored from an old build onto r27456. Obviously, this causes issues.

comment:3 Changed 21 months ago by KrypteX

Resolution: invalid
Status: closedreopened

The very small size of NVRAM backup (8 bytes) and the bricking on WZR-HP-G300NH (Atheros) when using the webflash file, may be connected.

Reports of Out of memory, 8 byte backups and webflash failing on WZR-HP-G300NH:

http://www.dd-wrt.com/phpBB2/viewtopic.php?p=974612#974612

http://www.dd-wrt.com/phpBB2/viewtopic.php?p=973300#973300

This ticket is closely related to tickets #4742 and #3894

Last edited 21 months ago by KrypteX (previous) (diff)

comment:4 Changed 21 months ago by KrypteX

Resolution: invalid
Status: reopenedclosed
Summary: NVRAM backup file only 8 bytesNVRAM out of memory / NVRAM backup file only 8 bytes

comment:5 Changed 21 months ago by KrypteX

Resolution: invalid
Status: closedreopened

NVRAM usage and backup reporting extremely low values with r28112 & r28139 on Broadcom/MIPS units.

NVRAM usage is only 20 bytes, status page shows 0.02 kB/256 kB on:

RT-N16 http://www.dd-wrt.com/phpBB2/viewtopic.php?p=991919#991919

E2500 http://www.dd-wrt.com/phpBB2/viewtopic.php?p=991978#991978

RT-AC66 http://www.dd-wrt.com/phpBB2/viewtopic.php?p=991985#991985

NVRAM backup on WNDR4500 is only 8 bytes http://www.dd-wrt.com/phpBB2/viewtopic.php?p=991928#991928

Last edited 21 months ago by KrypteX (previous) (diff)

comment:6 Changed 21 months ago by BrainSlayer

Resolution: fixed
Status: reopenedclosed

fixed in r28209.

comment:7 Changed 21 months ago by KrypteX

Thank you for fixing the NVRAM display & backup issues on Broadcom/MIPS units !

Last edited 21 months ago by KrypteX (previous) (diff)

comment:8 Changed 21 months ago by universal

This issue is still valid on 11-16-2015-r28211/buffalo_wzr-hp-g300nh/ So Ive no idea why someone reports this is fixed.

Router: Buffalo WZR-HP-G300NH

Firmware: DD-WRT v3.0-r28211 std (11/16/15

Kernel: Linux 3.10.93 #11380 Mon Nov 16 04:21:37 CET 2015 mips

Status: OK (except for unresolved bugs)

Reset: 30/30/30

see http://www.dd-wrt.com/phpBB2/viewtopic.php?p=993022#993022

Last edited 21 months ago by universal (previous) (diff)

comment:9 Changed 21 months ago by KrypteX

NVRAM display/backup for Atheros units with oversized NVRAM (such as WZR-HP-G300NH) is fixed in r28247-r28248. Thank you, BrainSlayer? !

Last edited 21 months ago by KrypteX (previous) (diff)

comment:10 Changed 21 months ago by universal

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