misc/141897: Kernel panic. msdofs: file name length 266 to large.

[Surkov Andrey]

>Number:         141897
>Category:       misc
>Synopsis:       Kernel panic. msdofs: file name length 266 to large.
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Dec 22 16:50:01 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Surkov Andrey
>Release:        FreeBSD 8.0 Release
>Organization:
>Environment:
FreeBSD nsand.home 8.0-RELEASE FreeBSD 8.0-RELEASE #0: Sat Nov 21 15:48:17 UTC 2009     root at almeida.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
On USB flashdrive there is a file with a long name.

# mount_msdofs -L ru_RU.UTF-8 /dev/da4s1 /mnt/flash
# ls /mnt/flash
msdofs: file name length 266 to large
msdofs: non-decreasing id: id 0, last id 2
msdofs: file name length 266 to large
msdofs: non-decreasing id: id 0, last id 2
panic: stack overflow detected; backtrace may be corrupted
cpuid = 0

After file removal it is mounted without problems.


>How-To-Repeat:
# mount_msdofs -L ru_RU.UTF-8 /dev/da4s1 /mnt/flash
# ls /mnt/flash
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: