Red Hat Bugzilla – Bug 445034
Unusual error messages in /var/log/messages about disk access
Last modified: 2013-03-05 22:55:55 EST
Description of problem: THe following messages keep appearing in my /var/log/messages file: kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen kernel: ata2.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0 kernel: cdb 1e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 kernel: res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout) kernel: ata2.00: status: { DRDY } kernel: ata2: soft resetting link kernel: ata2.00: configured for UDMA/66 kernel: ata2: EH complete It occurs every few minutes, however the system may go for a while without the error occurring. Version-Release number of selected component (if applicable): Fedora core 8 - current patch level 2.6.24.5-85.fc8 #1 SMP Sat Apr 19 11:18:09 EDT 2008 x86_64 GNU/Linux Additional info: Hardware: intel core2 quad processor asus P5N-E SLI 3 GB ddr2 ram 6 hard drives 4 sata WDC WD5000AAKS-0 1 pata WDC WD1200JB-00G 1 pata WDC WD2500AAJB-0 1 Optiarc DVD RW A The four sata drives are defined as a linux RAID 5 array and this array is mounted as /raid The 120 Gb pata drive is the Primary Master and only has swap space on it used by this system (It also contains a complete core 6 system and can be booted by changing the boot order in the bios. The 250 Gb pata drive is the Primary Slave and is the boot drive containing the fedora 8 system. The DVD drive is the Seconday Master, and there is nothing connected to the secondary slave port. In searching the internet, I found some references to the firmware on the WDC disk drives, but I am no longer able to find these references... This doesn't seem right. The question is "Is it a bug?"
Created attachment 304410 [details] /var/log/dmesg from the last boot of this system
Created attachment 304411 [details] output of lspci -vv command
hmm, ata2.00 is your DVD drive. I wonder if its a side-effect of hal polling it. Try running hal-disable-polling --device /dev/scd0 and see if it goes away.
Created attachment 304417 [details] Output of various commands about disks
I ran the command below: [root@mickey log]# hal-disable-polling --device /dev/scd0 Following symlink from /dev/scd0 to /dev/sr0. Polling for drive /dev/scd0 have been disabled. The fdi file written was /etc/hal/fdi/information/media-check-disable-storage_model_DVD_RW_AD_7190A.fdi We'll see if this causes the errors to go away. I assume that the xml file which was written above will permanently disable this polling.
Any news ?
I disabled polling on the DVD drive and the error message went away... Please close this...
I'll reassign it to the HAL people first, see if they can make use of it
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This can be closed. I no longer have the system referenced, so there is no way I can test this with a newer release.