Hi all, I am running a samba copy of a 4GB file from my local hard disk to a remote hard disk and then find md5sum of the same file in the remote hard disk through samba read. I do the following to accomplish this: 1. mount -t cifs //ip-addr/data /mnt 2. cp /home/4g /mnt 3. md5sum /mnt/4g After a few iterations of the above operation I get the following warning on the board: echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 6122.450000] smbd D c0204908 0 9712 372 0x00000000 [ 6122.480000] [<c0204908>] (schedule+0x2dc/0x328) from [<c0204980>] (io_schedule+0x2c/0x48) [ 6122.500000] [<c0204980>] (io_schedule+0x2c/0x48) from [<c0072064>] (sync_page+0x44/0x50) [ 6122.530000] [<c0072064>] (sync_page+0x44/0x50) from [<c0204dd4>] (__wait_on_bit_lock+0x5c/0xa8) [ 6122.560000] [<c0204dd4>] (__wait_on_bit_lock+0x5c/0xa8) from [<c0071ff0>] (__lock_page+0x88/0xa0) [ 6122.590000] [<c0071ff0>] (__lock_page+0x88/0xa0) from [<c007b530>] (truncate_inode_pages_range+0x2e4/0x38c) [ 6122.620000] [<c007b530>] (truncate_inode_pages_range+0x2e4/0x38c) from [<c007b5f0>] (truncate_inode_pages+0x18/0x20) [ 6122.640000] [<c007b5f0>] (truncate_inode_pages+0x18/0x20) from [<c0085acc>] (vmtruncate+0xe4/0x14c) [ 6122.670000] [<c0085acc>] (vmtruncate+0xe4/0x14c) from [<c00a43a8>] (inode_setattr+0x48/0x148) [ 6122.700000] [<c00a43a8>] (inode_setattr+0x48/0x148) from [<c00a4630>] (notify_change+0x188/0x1dc) [ 6122.730000] [<c00a4630>] (notify_change+0x188/0x1dc) from [<c0091440>] (do_truncate+0x6c/0x88) [ 6122.760000] [<c0091440>] (do_truncate+0x6c/0x88) from [<c00915c0>] (do_sys_ftruncate+0x164/0x170) [ 6122.800000] [<c00915c0>] (do_sys_ftruncate+0x164/0x170) from [<c00915e0>] (sys_ftruncate64+0x14/0x1c) [ 6122.830000] [<c00915e0>] (sys_ftruncate64+0x14/0x1c) from [<c0027fa0>] (ret_fast_syscall+0x0/0x2c) After this samba daemon hangs in the D state. I changed the values of /proc/sys/vm/dirty_writeback_centisecs to 250 (default 500) and /proc/sys/vm/dirty_expire_centisecs to 1000 (default 3000). But this only delays the problem. ps-ax shows smbd in D state. This problem seems to occur only during samba read. Can someone please provide me a solution for the above problem? regards, vijai -- The prizes in life u fail to win only if u doubt the power within -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
