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Subject: [Bug 1001732] New: fs-ecos bug/assertion
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           Summary: fs-ecos bug/assertion
           Product: eCos
           Version: unknown
          Platform: nios2_stratix2_2s60_rohs_tseplus (Stratix II, TSE+
                    design)
        OS/Version: Nios II
            Status: UNCONFIRMED
          Severity: major
          Priority: low
         Component: Filesystem support
        AssignedTo: unassigned@bugs.ecos.sourceware.org
        ReportedBy: praveenrai@ge.com
                CC: ecos-bugs@ecos.sourceware.org
             Class: Advice Request


Created an attachment (id=2034)
 --> (http://bugs.ecos.sourceware.org/attachment.cgi?id=2034)
snapshot of debug window

Hi,
I have encountered an issue where opening a file in write mode with
O_WRONLY|O_CREAT|O_TRUNC flags set is causing the code in fs-ecos.c (function
jffs2_to_os_mode()) to hit BUG(). I have an onboard CFI flash and an offboard
SPI flash. The problem is very intermittent and appears on both the flashes
(more often on SPI flash). So far I have been able to reproduce it by erasing
the SPI flash and then copying a file to it. The copy command sequence is as
follows:

copy->creat(destFile, filePermissions)->open( path, O_WRONLY | O_CREAT |
O_TRUNC, mode )->jffs2_open()->jffs2_truncate_file(uint32_t osmode).

When the error happens the argument osmode is either 0 or 10. In normal case
osmode is usually 0x16F0008 or 0x16F0001. I have attached snapshot of nios
debugger here for reference. 

Kindly let me know what could be the potential issue or areas to look at.
Appreciate your help.

Thanks,
Praveen

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