Thread: N770: installable bugfix for bug #2006 - Memory corruption during WLAN use
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fanoush is offline fanoush
2007-11-16 , 12:13
Posts: 2,152 | Thanked: 1,490 times | Joined on Jan 2006 @ Czech Republic
#1
As already mentioned in this thread there is unfixed critical memory corruption bug in all OS2006 firmwares and older hacker editions of OS2007. It was only recently fixed in latest hacker edition, see http://maemo.org/news/announcements/...on_bugfix.html

This bug can cause major system instability when WLAN network is enabled. It can also corrupt files which are written when wi-fi is enabled. For more details see http://bugs.maemo.org/show_bug.cgi?id=2006

This bug is known for more than year (see links in comment
http://bugs.maemo.org/show_bug.cgi?id=677#c4) but was only recently analyzed and fixed.

You can download installable package from here or from bugzilla. File size 29666 bytes, md5sum is 7c8b12623ba0f74d096f214ecc44d167.
Package works both on latest OS2006 firmware and any OS2007 hacker edition so far.

It is advised to keep this on MMC card and install it after flashing affected firmware before using WLAN for the first time.

If you leave your wi-fi on at install time you must REBOOT your device after installation to make it effective so better disconnect before installation.

The fix lives in rootfs so if you boot more systems (from MMC) this must be installed in each system.

You don't need this for N800 and up and you also don't need it if you installed recent hacker edition linked above (whole image or just initfs). If installed on latest HE, it will override the fix already present.

You can verify in kernel log that fixed WLAN driver is installed - after boot open osso-xterm and type
Code:
dmesg
Driver is installed if you see something like
Code:
Unloaded CX3110x  driver, version 0.8
CX3110x chip variant: STLC4370
CX3110x: firmware version: 2.13.0.0.a.13.14
Loaded CX3110x driver, version 0.8.1-bug2006-fix1
Thanks should go to Tilman Vogel for detailed analysis of this bug, to Siarhei Siamashka (a.k.a. Serge here) for discovering and fixing it and to others who helped.
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Last edited by fanoush; 2007-11-20 at 13:17. Reason: 0.2 version does not need reboot if wi-fi is off
 

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