Messages in this thread | | | Date | Sat, 06 Feb 2010 18:55:36 -0600 | From | Dick Hollenbeck <> | Subject | SquashFS on ARM9 |
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Dear Philip et. al,
I am using 2.6.30.5 on an ARM9 with squashfs.
The squashFS image is built with x86_64 form of
mksquashfs version 4.1-CVS (2009/09/20)
a 64 bit linux program.
The image mounts into the 64 bit development system OK and I can read a particular file. There are no problems on the development system, only the ARM9.
When mounted on ARM9 with said kernel, I get a read error reading that same particular file:
dmesg:
SQUASHFS error: zlib_inflate error, data probably corrupt SQUASHFS error: squashfs_read_data failed to read block 0x50581 SQUASHFS error: Unable to read fragment cache entry [50581] SQUASHFS error: Unable to read page, block 50581, size b6f3 SQUASHFS error: Unable to read fragment cache entry [50581] SQUASHFS error: Unable to read page, block 50581, size b6f3 SQUASHFS error: Unable to read fragment cache entry [50581] SQUASHFS error: Unable to read page, block 50581, size b6f3
That image resides on a CF card mounted with loop on the target ARM9. If I unmount the image, I can SSH copy it out off the flash back to the development system and do a binary compare on it there against the original and it is not corrupted. Remember that the orginal mounts fine on the development system. I think this means that the CF card is not corrupted.
Am I running into an alignment bug on the ARM9 or an endianess issue? (ARM9 is lsbyte first as far as I thought, same as the x86_64 Ubuntu Karmic development system.)
I checked the squashfs kernel block.c file against the latest mainline and they agree.
Please offer help.
Thanks,
Dick
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