TS-755X Errata nandcorruption: Difference between revisions
m (FTP links auto-updated (ftp://ftp.embeddedarm.com/ → https://files.embeddedarm.com/)) |
m (Links auto-updated for 2022 re-branding ( https://files.embeddedarm.com/ts-arm-sbc/ts-7500-linux/binaries/ts-utils/nandctl → https://files.embeddedTS.com/ts-arm-sbc/ts-7500-linux/binaries/ts-utils/nandctl)) |
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1) Simply disable the execution of tsversions and bootmsg in the linuxrc. Any linuxrc other than linuxrc-fastboot already have this disabled. | 1) Simply disable the execution of tsversions and bootmsg in the linuxrc. Any linuxrc other than linuxrc-fastboot already have this disabled. | ||
2) Download the new [https://files. | 2) Download the new [https://files.embeddedTS.com/ts-arm-sbc/ts-7500-linux/binaries/ts-utils/nandctl nandctl] binary from our FTP site to /sbin/nandctl in the fastboot shell. If booted to the fastboot shell, remember to type `save` to save the initrd back to disk. | ||
Latest revision as of 17:16, 17 January 2022
| Synopsis | TS-755X/TS-4500 nandctl hanging |
| Severity | High |
| Class | Software bug |
| Affected | TS-755X/TS-4500 Products and images shipped before March 11th 2011 |
| Status | Workarounds available |
Description:
The TS-75XX image was updated as of Feb 11 includes extra version information that is printed by the linuxrc. This behavior has exacerbated a bug in nandctl that can cause the SBUS to get in a hung state. Using nandctl for access via NBD is and has always been safe, however using the -k or --setmbr options are potentially unsafe. The tsversions application used in the Feb 11th release uses the -k option and can get in to a hung up state. Please note that under rare circumstances this issue can cause NAND flash corruption and it is highly recommended to update to the latest nandctl.
TS-755X/TS-4500 products and images shipped on or after March 11th 2011 are not affected by this bug.
Workaround:
There are two workarounds.
1) Simply disable the execution of tsversions and bootmsg in the linuxrc. Any linuxrc other than linuxrc-fastboot already have this disabled.
2) Download the new nandctl binary from our FTP site to /sbin/nandctl in the fastboot shell. If booted to the fastboot shell, remember to type `save` to save the initrd back to disk.