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Annotation of dmsdos/BUGS, revision 1.1.1.1

1.1       root        1: 
                      2: Known bugs:
                      3: -----------
                      4: 
                      5: - Support for 2.3.XX is broken now. It is uder development and is targeted
                      6:   to 2.3.30 and higher. MMAP support for 2.3.XX is missing and MMAP will
                      7:   lead to Oops.
                      8: 
                      9: - In some 2.1.XX kernels umsdos support is broken. Get at least 2.1.94
                     10:   if you want to use umsdos-style long filenames in CVFs. For 2.0.xx
                     11:   and 2.2.x kernels everything is okay.
                     12: 
                     13: - Advanced memory allocation (XMALLOC) may crash a 2.1.xx/2.2.xx system.
                     14:   I once got a report of a serious crash with old dmsdosfs. The code
                     15:   for XMALLOC has never been changed, but the kernel keeps changing...
                     16:   It is known to work without problems under 2.0.xx.
                     17: 
                     18: - Writable mmap support must be turned *on* for newer 2.1.xx and all 2.2.xx
                     19:   kernels. The code fails to compile if it is switched off, so you'll see it 
                     20:   quite early :)
                     21: 
                     22: - Mounting with the cvf_format=xxx mount option may succeed even if the
                     23:   specified format xxx is not present. The CVF-FAT interface does auto-
                     24:   detection if an invalid format is specified. This was meant as a feature
                     25:   but seems to cause confusion. In rare cases it may lead to a CVF accessed
                     26:   by the plain FAT driver (which does not complain on mount but it will
                     27:   scream loudly when, for example, a 'ls' is done on the mount point).
                     28:   This bug is fixed by updating the file cvf.c as described in INSTALL.TXT.
                     29: 
                     30: 
                     31: Kernel bugs related to using dmsdos
                     32: -----------------------------------
                     33: 
                     34: - vfat brelse bug  
                     35:   Priority: Serious.
                     36:   Affected kernels: 2.2.0, 2.2.1, 2.2.2, probably late 2.1.xx.
                     37:   Fixed since: --not yet fixed, hopefully fixed in 2.2.3 or 2.2.4--
                     38:   Symptom: Kernel panics with "VFS: LRU list corrupted" and hangs.
                     39:   Fix: See file patches/DIFFS.TXT for a patch.
                     40: 
                     41: - fat truncate bug
                     42:   Priority: Minor.
                     43:   Affected kernels: all 2.0.xx, all 2.1.xx, 2.2.0, 2.2.1, 2.2.2.
                     44:   Fixed since: --not yet fixed, hopefully fixed in 2.2.3 or 2.2.4--
                     45:   Symptom: Kernel can write to read-only mounted CVF and corrupt the FAT.
                     46:            Happens very rarely and requires a slightly damaged filesystem
                     47:            to provoke this bug.
                     48:   Fix: See file patches/DIFFS.TXT for a patch.
                     49: 
                     50: - msdos rmdir bug
                     51:   Priority: Minor.
                     52:   Affected kernels: 2.0.34, 2.0.35, FAT32-patched 2.0.33 or earlier,
                     53:                     some 2.1.xx (unknown which ones)
                     54:   Fixed since: 2.0.36, unknown for 2.1.xx
                     55:   Symptom: Removing non-empty directories succeeds but leaves lost cluster
                     56:            chains behind.
                     57:   Fix: See file patches/DIFFS.TXT for a patch.
                     58: 
                     59: - fat add cluster / fat extend dir for 2.3.xx
                     60:   Priority: Serious.
                     61:   Affected kernels: 2.2.?-2.2.13+, 2.3.?-2.3.30+
                     62:   Fixed since: --not yet fixed, hopefully fixed in 2.2.15 and 2.3.31--
                     63:   Symptom: File or directory (only dir for 2.3.x) cannot be enlargered.
                     64:   Fix: See file patches/DIFFS.TXT for a patch.
                     65: 
                     66: - fat read super
                     67:   Priority: Serious.
                     68:   Affected kernels: 2.3.?-2.3.30+
                     69:   Fixed since: --not yet fixed, hopefully fixed in 2.3.31--
                     70:   Symptom: Oops during CVF mount phase.
                     71:   Fix: See file patches/DIFFS.TXT for a patch.
                     72: 

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