DMA Problem.

duffmckagan · 10-29-2005, 02:24 AM

I have installed Debian Sarge 3.1 on a computer witht he following Hardware Details.

Details about the computer.

Sometimes, while shutting down the computer, I get errors similar to this.

Code:

umounting file systems
hdb: dma-timer_expiry
dma status ==0x61
hdb: dma timeout 

hda: DMA disabled.
hdb: no DRQ after issuing WRITE
ide0: reset: success
hdb= dma_timer_expiry= 0xd0 (Busy)

Seems like a problem with the DMA.

The hda is a Samsung 40GB HDD with many partitions for as many as 6 Linices...
and the other one hdb is a Seagate 120GB HDD with the 80GB data partition...with fat32 file system.... I fear of critical data loss on the Fat File system.

Please help. Its urgent.

samael26 · 10-29-2005, 02:47 AM

Hi,

1) Install hdparm

#apt-get install hdparm

2) Then edit the file hdparm.conf in your favourite editor,
scrolling down to DMA=... then replace the three dots with 'ON'

3) To enable DMA, as root type :

Code:

hdparm -d1 /dev/ hdsomething

Of course, replace something with the device you want to use.

4) To make it permanent, sorry, I've tried but no matter what I tried
I have to do that at each reboot.

Hope it helps

duffmckagan · 10-29-2005, 04:20 AM

But i don't understand what could be the cause for this sudden problem.

I booted into Mandriva and it gave me some error regarding faulty Hardware during bootup.

I got the following message (excerpt from /var/log/boot.log)

Code:

fsck: finished 
Oct 29 05:32:56 Copperskull fsck: Reiserfs super block in block 16 on 0x345 of format 3.6 with standard journal 
Oct 29 05:32:56 Copperskull fsck: Blocks (total/free): 5174928/4640595 by 4096 bytes 
Oct 29 05:32:56 Copperskull fsck: Filesystem is clean 
Oct 29 05:32:56 Copperskull fsck: ******************************************************************** 
Oct 29 05:32:56 Copperskull fsck: * Warning: It was just detected that dma mode was turned off while * 
Oct 29 05:32:56 Copperskull fsck: * operating -- probably  due  to some  problem with your hardware. * 
Oct 29 05:32:56 Copperskull fsck: * Please check your hardware and have a look into the syslog file. * 
Oct 29 05:32:56 Copperskull fsck: * Note: running with --rebuild-tree on faulty hardware may destroy * 
Oct 29 05:32:56 Copperskull fsck: * your data.                                                       * 
Oct 29 05:32:56 Copperskull fsck: ********************************************************************

I will post the messages from other distros, when I discover them in the log files.

The message that I posted were handwritten by me.....and may have not provided a complete insight of the problem.

Also, I will link this post to the Hardware Section of this Forum.

Thanks for the reply.
I was also taking a look at this link.

duffmckagan · 10-29-2005, 04:55 AM

Finally, I found the required ERROR Messages.

See if these help you guys finding a more appropriate solution.
I really don't understand what caused this all of a sudden.

I really can't backup this huge amount of data in a short period of time.

Code:

Oct 29 03:28:27 copperskull kernel: hdb: dma_timer_expiry: dma status == 0x61
Oct 29 03:28:37 copperskull kernel: hdb: error waiting for DMA
Oct 29 03:28:37 copperskull kernel: hdb: dma timeout retry: status=0x58 { DriveReady SeekComplete DataRequest }
Oct 29 03:28:37 copperskull kernel: 
Oct 29 03:28:37 copperskull kernel: hda: status error: status=0x58 { DriveReady SeekComplete DataRequest }
Oct 29 03:28:37 copperskull kernel: 
Oct 29 03:28:37 copperskull kernel: hda: drive not ready for command
Oct 29 03:28:37 copperskull kernel: is_tree_node: node level 11051 does not match to the expected one 1
Oct 29 03:28:37 copperskull kernel: ide0(3,9):vs-5150: search_by_key: invalid format found in block 589420. Fsck?
Oct 29 03:28:37 copperskull kernel: ide0(3,9):vs-13070: reiserfs_read_inode2: i/o failure occurred trying to find stat data of [164357 175283 0x0 SD]
Oct 29 03:28:37 copperskull kernel: is_tree_node: node level 11051 does not match to the expected one 1
Oct 29 03:28:37 copperskull kernel: ide0(3,9):vs-5150: search_by_key: invalid format found in block 589420. Fsck?
Oct 29 03:28:37 copperskull kernel: ide0(3,9):vs-13070: reiserfs_read_inode2: i/o failure occurred trying to find stat data of [164357 175283 0x0 SD]
Oct 29 03:28:37 copperskull kernel: hdb: read_intr: status=0x51 { DriveReady SeekComplete Error }
Oct 29 03:28:37 copperskull kernel: hdb: read_intr: error=0x04 { DriveStatusError }
Oct 29 03:28:37 copperskull kernel: hdb: read_intr: status=0x51 { DriveReady SeekComplete Error }
Oct 29 03:28:37 copperskull kernel: hdb: read_intr: error=0x04 { DriveStatusError }
Oct 29 03:28:38 copperskull kernel: hdb: read_intr: status=0x51 { DriveReady SeekComplete Error }
Oct 29 03:28:38 copperskull kernel: hdb: read_intr: error=0x04 { DriveStatusError }
Oct 29 03:28:38 copperskull kernel: hdb: read_intr: status=0x51 { DriveReady SeekComplete Error }
Oct 29 03:28:38 copperskull kernel: hdb: read_intr: error=0x04 { DriveStatusError }
Oct 29 03:28:38 copperskull kernel: ide0: reset: success
Oct 29 03:28:58 copperskull kernel: hdb: dma_timer_expiry: dma status == 0x41
Oct 29 03:29:08 copperskull kernel: hdb: error waiting for DMA
Oct 29 03:29:09 copperskull kernel: hdb: dma timeout retry: status=0x58 { DriveReady SeekComplete DataRequest }
Oct 29 03:29:09 copperskull kernel: 
Oct 29 03:29:09 copperskull kernel: hda: status error: status=0x50 { DriveReady SeekComplete }
Oct 29 03:29:09 copperskull kernel: 
Oct 29 03:29:09 copperskull kernel: hda: no DRQ after issuing MULTWRITE
Oct 29 03:29:09 copperskull kernel: hda: status error: status=0x50 { DriveReady SeekComplete }
Oct 29 03:29:09 copperskull kernel: 
Oct 29 03:29:09 copperskull kernel: hda: no DRQ after issuing MULTWRITE
Oct 29 03:29:29 copperskull kernel: hdb: dma_timer_expiry: dma status == 0x41
Oct 29 03:29:39 copperskull kernel: hdb: error waiting for DMA
Oct 29 03:29:39 copperskull kernel: hdb: dma timeout retry: status=0x58 { DriveReady SeekComplete DataRequest }
Oct 29 03:30:09 copperskull kernel: 
Oct 29 03:30:09 copperskull kernel: hda: status error: status=0x50 { DriveReady SeekComplete }
Oct 29 03:30:09 copperskull kernel: 
Oct 29 03:30:09 copperskull kernel: hda: no DRQ after issuing MULTWRITE
Oct 29 03:30:09 copperskull kernel: hda: status error: status=0x50 { DriveReady SeekComplete }
Oct 29 03:30:09 copperskull kernel: 
Oct 29 03:30:09 copperskull kernel: hda: no DRQ after issuing MULTWRITE
Oct 29 03:30:09 copperskull kernel: hdb: dma_timer_expiry: dma status == 0x41
Oct 29 03:30:09 copperskull kernel: hdb: error waiting for DMA
Oct 29 03:30:09 copperskull kernel: hdb: dma timeout retry: status=0x58 { DriveReady SeekComplete DataRequest }
Oct 29 03:30:09 copperskull kernel: 
Oct 29 03:30:09 copperskull kernel: hda: status error: status=0x50 { DriveReady SeekComplete }
Oct 29 03:30:09 copperskull kernel: 
Oct 29 03:30:09 copperskull kernel: hda: no DRQ after issuing MULTWRITE
Oct 29 03:30:09 copperskull kernel: hda: status error: status=0x50 { DriveReady SeekComplete }
Oct 29 03:30:09 copperskull kernel: 
Oct 29 03:30:09 copperskull kernel: hda: no DRQ after issuing MULTWRITE
Oct 29 03:30:09 copperskull kdm[2403]: X server for display :0 terminated unexpectedly
Oct 29 03:30:10 copperskull kernel: mtrr: no more MTRRs available
Oct 29 03:30:10 copperskull last message repeated 3 times
Oct 29 03:31:00 copperskull kernel: is_tree_node: node level 11051 does not match to the expected one 1
Oct 29 03:31:00 copperskull kernel: ide0(3,9):vs-5150: search_by_key: invalid format found in block 589420. Fsck?
Oct 29 03:31:00 copperskull kernel: ide0(3,9):vs-13070: reiserfs_read_inode2: i/o failure occurred trying to find stat data of [164357 175283 0x0 SD]
Oct 29 03:31:00 copperskull kernel: is_tree_node: node level 11051 does not match to the expected one 1
Oct 29 03:31:00 copperskull kernel: ide0(3,9):vs-5150: search_by_key: invalid format found in block 589420. Fsck?
Oct 29 03:31:00 copperskull kernel: ide0(3,9):vs-13070: reiserfs_read_inode2: i/o failure occurred trying to find stat data of [164357 175283 0x0 SD]
Oct 29 03:34:52 copperskull kernel: is_tree_node: node level 11051 does not match to the expected one 1
Oct 29 03:34:52 copperskull kernel: ide0(3,9):vs-5150: search_by_key: invalid format found in block 589420. Fsck?
Oct 29 03:34:52 copperskull kernel: ide0(3,9):vs-13070: reiserfs_read_inode2: i/o failure occurred trying to find stat data of [164357 175283 0x0 SD]
Oct 29 03:34:52 copperskull kernel: is_tree_node: node level 11051 does not match to the expected one 1
Oct 29 03:34:52 copperskull kernel: ide0(3,9):vs-5150: search_by_key: invalid format found in block 589420. Fsck?
Oct 29 03:34:52 copperskull kernel: ide0(3,9):vs-13070: reiserfs_read_inode2: i/o failure occurred trying to find stat data of [164357 175283 0x0 SD]
Oct 29 03:36:45 copperskull kernel: is_tree_node: node level 11051 does not match to the expected one 1
Oct 29 03:36:45 copperskull kernel: ide0(3,9):vs-5150: search_by_key: invalid format found in block 589420. Fsck?
Oct 29 03:36:45 copperskull kernel: ide0(3,9):vs-13070: reiserfs_read_inode2: i/o failure occurred trying to find stat data of [164357 175282 0x0 SD]
Oct 29 03:36:45 copperskull kernel: is_tree_node: node level 11051 does not match to the expected one 1
Oct 29 03:36:45 copperskull kernel: ide0(3,9):vs-5150: search_by_key: invalid format found in block 589420. Fsck?
Oct 29 03:36:45 copperskull kernel: ide0(3,9):vs-13070: reiserfs_read_inode2: i/o failure occurred trying to find stat data of [164357 175282 0x0 SD]
Oct 29 03:36:45 copperskull kernel: is_tree_node: node level 11051 does not match to the expected one 1
Oct 29 03:36:45 copperskull kernel: ide0(3,9):vs-5150: search_by_key: invalid format found in block 589420. Fsck?
Oct 29 03:36:45 copperskull kernel: ide0(3,9):vs-13070: reiserfs_read_inode2: i/o failure occurred trying to find stat data of [164357 175283 0x0 SD]
Oct 29 03:36:45 copperskull kernel: is_tree_node: node level 11051 does not match to the expected one 1
Oct 29 03:36:45 copperskull kernel: ide0(3,9):vs-5150: search_by_key: invalid format found in block 589420. Fsck?
Oct 29 03:36:45 copperskull kernel: ide0(3,9):vs-13070: reiserfs_read_inode2: i/o failure occurred trying to find stat data of [164357 175283 0x0 SD]

duffmckagan · 10-29-2005, 02:07 PM

I don't know where did the problem lie!

I disabled DMA Mode of both the hard disk using hdparm, and on bootup, it was enabled again.

Don't know how I don't get those errors anymore.

Sorry for double posting.
Sorry for not posting in the proper section.

My sincere apologies.

samael26 · 10-29-2005, 03:11 PM

Good it worked !

duffmckagan · 10-29-2005, 03:18 PM

Problem not solved. Problem disappeared!

;-)

I will post back in case the problem troubles me again.

slithy · 10-30-2005, 01:24 AM

If you don't have support for your mobo's chipset integrated into the kernel, then DMA will be turned off by default and you won't be able to change it with hdparm.

duffmckagan · 10-30-2005, 08:32 AM

As already told, the problem cropped up all of a sudden.