Re: [ECOS] Getting segmentation fault while unmounting JFFS2 file system .

[Gary Thomas <gary at mlbassoc dot com>]

Amitesh Singh wrote:
> Hi All
> I am facing problem while umounting JFFS2 FS.
> I am successfully able to mount JFFS2 system on CRAMFS root file
> system but not able to umount it. It shows Seg.fault when i umount
> this File system.
> # umount /mnt
> umount: Cannot open /etc/mtab
> Unable to handle kernel NULL pointer dereference at virtual address 
> 00000000
> .
> ..
> ..
> I am using CFI Flash device in physical memory map .
> <*> CFI Flash device in physical memory map
>       â â
> â â         (0x50000000) Physical start address of flash mapping
>                     â â
> â â         (0x01000000) Physical length of flash mapping
>
> Earlier,i was facing same problem while mounting any MTD block then i
> used the physical mapped flash map instead of the ixp_4xx map .
> Now,I only able to mount but failed to unmount MTD device :P
> Please help me out !

This is purely a JFFS2 problem and has nothing to do with RedBoot/eCos
- take it up with the folks that support JFFS2.

--
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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