[linux-cifs-client] cifs causes alignment traps on ARM!
Steven Scholz
steven.scholz at imc-berlin.de
Fri Jun 23 14:48:16 GMT 2006
Hi,
it seems that cifs is doing missaligned accesses and thus causing alignment
traps on ARM cpus.
Just to remember: since ARM9 is 32bit and cannot easily do unaligned
accesses we introduced the __attribute__((packed)) for structures that are
passed over the network.
But there still seems to be problems.
~ # mount -t cifs //10.0.2.10/test /mnt/intern -o user=foobar
~ # cat /proc/cpu/alignment
User: 0
System: 12
Skipped: 0
Half: 12
Word: 0
Multi: 0
User faults: 0 (ignored)
And BTW when trying to mount a windows share with password I get
fs/cifs/inode.c: Getting info on
fs/cifs/transport.c: For smb_command 50
fs/cifs/transport.c: Sending smb of length 74
fs/cifs/connect.c: rfc1002 length 0x27)
fs/cifs/connect.c: invalid transact2 word count
Status code returned 0xc0000022 NT_STATUS_ACCESS_DENIED
Maybe this "invalid transact2 word count" is still a problem of unaligned
data accesses ...
--
Steven
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