Re: JFFS2 on Lite5200
From: Andrey Volkov <hidden>
Date: 2006-10-17 13:20:46
Hello Andrea, Andrea Galbusera wrote:
Hello. I'm currently using linux-2.6.16 from denx on a Lite5200 V2.0. I need to access a JFFS2 filesystem on the onboard flash ( 16MB Am29L652D ). I see the flash using physmap driver and cmdline partitions. I experience a problem when creating files on JFFS2 with filename longer than a few characters. They appear to be created correctly with the content I want, but, after unmounting and remounting the filesystem they result unreadable and ls complains with "no such file or directory" (short-named files are ok).
--snip-- OMG, again same question, Andrea, check ml archive, I already sent patch half-year ago (http://ozlabs.org/pipermail/linuxppc-embedded/2006-April/022566.html) Problem is in alignment/memcpy: JFFS2 code assumed that memory at unaligned addresses could be touched, but access to an external MMIO on MPC5200 _must_ be aligned (i.e. you could not read u32 from odd address). P.S. Artem, I repeat, I sent this patch _HALF_YEAR_AGO_ how about to fix scan.c? -- Regards Andrey