cp hang while copying from cifs

[Alexey Dobriyan]

I was copying figure skating tournament 2006 recordings from Windows (?)
SMB share. After a while cp hanged with

	Segmentation fault

The only thing in logs was

	CIFS VFS: Received no data, expecting 9207
	CIFS VFS: No response to cmd 46 mid 1127
	CIFS VFS: Send error in read = -11

OK, reboot, remount, recopying. Evething went fine except

cp: cannot stat `/home/ad/mnt/utaba/TV/-2006   //': No such file or directory
cp: cannot stat `/home/ad/mnt/utaba/TV/-2006   //2': No such file or directory

And dmesg cluttered with

 CIFS VFS: No response to cmd 46 mid 304
 CIFS VFS: Send error in read = -11
 CIFS VFS: Received no data, expecting 9207
 CIFS VFS: No response to cmd 46 mid 310
 CIFS VFS: Send error in read = -11
 CIFS VFS: Received no data, expecting 519
 CIFS VFS: No response to cmd 46 mid 317
 CIFS VFS: Send error in read = -11
 CIFS VFS: Received no data, expecting 519
 CIFS VFS: No response to cmd 46 mid 323
 CIFS VFS: Send error in read = -11
 CIFS VFS: Received no data, expecting 9207
 CIFS VFS: No response to cmd 46 mid 334
 CIFS VFS: Send error in read = -11
 CIFS VFS: Received no data, expecting 519
 CIFS VFS: No response to cmd 46 mid 349
 CIFS VFS: Send error in read = -11
 CIFS VFS: Received no data, expecting 9207
 CIFS VFS: No response to cmd 46 mid 360
 CIFS VFS: Send error in read = -11
 CIFS VFS: Received no data, expecting 9207
 CIFS VFS: No response to cmd 46 mid 366
 CIFS VFS: Send error in read = -11
 CIFS VFS: Received no data, expecting 9207
 CIFS VFS: No response to cmd 46 mid 377
 CIFS VFS: Send error in read = -11
 CIFS VFS: Received no data, expecting 9207
 CIFS VFS: No response to cmd 46 mid 383
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 5471
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 5520
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 16887
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 16914
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 16947
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 19578
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 19594
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 20328
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 22941
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 29280
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 29293
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 29301
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 1341
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 1349
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 1356
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 1394
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 7914
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 8554
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 48634
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 54926
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response for cmd 50 mid 54931
 CIFS VFS: Send error in read = -9
 CIFS VFS: No response to cmd 46 mid 55453
 CIFS VFS: Send error in read = -11
 CIFS VFS: No response to cmd 46 mid 58629
 CIFS VFS: Send error in read = -11
 CIFS VFS: Send error in read = -9
 CIFS VFS: No response to cmd 46 mid 62938
 CIFS VFS: Send error in read = -11