kernel: scsi 0:0:0:0: rejecting I/O to dead device
16,715
Looks like the drive is dropping and then reconnecting. This indicates one of three things:
- Most likely a bad drive, I would start checking the SMART logs and see what you get there.
- A bad cable/SCSI controller (normally RAID cards) ... if SMART checks out and this continues, swap the cable first then the card.
- You are doing so much sustained disk I/O that you are overloading the disk controller ... you should be able to tell if you are overloading the I/O.
Hope that helps ... its a scary message to get.
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Author by
Greg Petersen
Updated on September 18, 2022Comments
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Greg Petersen almost 2 years
Yesterday, OSSEC sent me an alerting email:
Jul 29 21:25:16 SVR4149 kernel: end_request: I/O error, dev sda, sector 334634969 Jul 29 21:25:16 SVR4149 kernel: sd 0:0:0:0: SCSI error: return code = 0x00040000 Jul 29 21:25:16 SVR4149 kernel: end_request: I/O error, dev sda, sector 334634977 Jul 29 21:28:28 SVR4149 kernel: sd 0:0:0:0: SCSI error: return code = 0x00040000
The surprising is at that time I have only
/dev/sdb
device.# fdisk -l Disk /dev/sdb: 320.0 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 * 1 13 104391 83 Linux /dev/sdb2 14 7662 61440592+ 83 Linux /dev/sdb3 7663 8706 8385930 82 Linux swap / Solaris /dev/sdb4 8707 38888 242436915 5 Extended /dev/sdb5 8707 38888 242436883+ 83 Linux
After Googling, I found this link. Do the suggested commands, it bring back my
/dev/sdc
:Jul 29 22:55:45 SVR4149 kernel: ata1: hard resetting link Jul 29 22:55:45 SVR4149 kernel: ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Jul 29 22:55:45 SVR4149 kernel: ata1.00: ATA-8: WDC WD3202ABYS-01B7A0, 02.03B02, max UDMA/133 Jul 29 22:55:45 SVR4149 kernel: ata1.00: 625142448 sectors, multi 0: LBA48 NCQ (depth 31/32) Jul 29 22:55:45 SVR4149 kernel: ata1.00: configured for UDMA/133 Jul 29 22:55:45 SVR4149 kernel: ata1: EH complete Jul 29 22:55:45 SVR4149 kernel: ata1.00: detaching (SCSI 0:0:0:0) Jul 29 22:55:45 SVR4149 kernel: Vendor: ATA Model: WDC WD3202ABYS-0 Rev: 02.0 Jul 29 22:55:45 SVR4149 kernel: Type: Direct-Access ANSI SCSI revision: 05 Jul 29 22:55:45 SVR4149 kernel: SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB) Jul 29 22:55:45 SVR4149 kernel: sdc: Write Protect is off Jul 29 22:55:45 SVR4149 kernel: sdc: Mode Sense: 00 3a 00 00 Jul 29 22:55:45 SVR4149 kernel: SCSI device sdc: drive cache: write back Jul 29 22:55:53 SVR4149 kernel: SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB) Jul 29 22:55:53 SVR4149 kernel: sdc: sdc1 sdc2 sdc3 sdc4 < sdc5 > Jul 29 22:55:53 SVR4149 kernel: sd 0:0:0:0: Attached scsi disk sdc Jul 29 22:55:53 SVR4149 kernel: sd 0:0:0:0: Attached scsi generic sg0 type 0
Rechecking with
fdisk
:# fdisk -l Disk /dev/sdb: 320.0 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 * 1 13 104391 83 Linux /dev/sdb2 14 7662 61440592+ 83 Linux /dev/sdb3 7663 8706 8385930 82 Linux swap / Solaris /dev/sdb4 8707 38888 242436915 5 Extended /dev/sdb5 8707 38888 242436883+ 83 Linux Disk /dev/sdc: 320.0 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdc1 * 1 13 104391 83 Linux /dev/sdc2 14 7662 61440592+ 83 Linux /dev/sdc3 7663 8706 8385930 82 Linux swap / Solaris /dev/sdc4 8707 38888 242436915 5 Extended /dev/sdc5 8707 38888 242436883+ 83 Linux
But I got the another problem from kernel log:
Jul 30 01:03:41 SVR4149 kernel: scsi 0:0:0:0: rejecting I/O to dead device Jul 30 01:14:40 SVR4149 kernel: scsi 0:0:0:0: rejecting I/O to dead device Jul 30 01:16:41 SVR4149 kernel: scsi 0:0:0:0: rejecting I/O to dead device Jul 30 01:53:18 SVR4149 last message repeated 7 times
and
smartd
keep opening the non exist device:Jul 30 10:00:57 SVR4149 smartd[3749]: Device: /dev/sda, No such device, open() failed
No special in my
smartd.conf
file:# grep -v "^#" /etc/smartd.conf | sed '/^$/d' DEVICESCAN -H -m root
Does my scsi0 is going to 'die'?
cat /proc/scsi/scsi Attached devices: Host: scsi1 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: WDC WD3202ABYS-0 Rev: 02.0 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: WDC WD3202ABYS-0 Rev: 02.0 Type: Direct-Access ANSI SCSI revision: 05
Any help will be appreciated.
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Coops about 11 yearsI got this after yet another power failure overnight and we have no UPS at current. Think this will be a kick in the balls to get one!
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