Hi.
Guess this is the rigth place to ask the question.
This is about some SCSI stuff.
When i burn a linux cd, i usually afterwards do an:
md5sum /dev/scd0
And this gives med the excactly same checksum as the iso file, but now on
kernel 2.4.16 it gives:
[root@luke root]# md5sum /dev/scd0
md5sum: /dev/scd0: Input/output error
Or just hangs and never exits, and only a reboot seems to fix it.
And so on, if I try on the other 4 scsi recorders
So is this a kernel bug or rather defect hardware?
What can i do to find out more about where the trouble is?
I have not tried all the kernelversions but on the mandrake 8.1 standard
kernel it works and it used to work on the early 2.4 kernels.
All things build into the kernel except the loopback
Output in /var/log/mesages:
Nov 26 21:49:31 luke kernel: sym0:1:0: ABORT operation started.
Nov 26 21:49:36 luke kernel: sym0:1:0: ABORT operation timed-out.
Nov 26 21:49:36 luke kernel: sym0:1:0: ABORT operation started.
Nov 26 21:49:41 luke kernel: sym0:1:0: ABORT operation timed-out.
Nov 26 21:49:41 luke kernel: sym0:2:0: ABORT operation started.
Nov 26 21:49:46 luke kernel: sym0:2:0: ABORT operation timed-out.
Nov 26 21:49:46 luke kernel: sym0:2:0: ABORT operation started.
Nov 26 21:49:51 luke kernel: sym0:2:0: ABORT operation timed-out.
Nov 26 21:49:51 luke kernel: sym0:3:0: ABORT operation started.
Nov 26 21:49:56 luke kernel: sym0:3:0: ABORT operation timed-out.
Nov 26 21:49:56 luke kernel: sym0:3:0: ABORT operation started.
Nov 26 21:50:01 luke kernel: sym0:3:0: ABORT operation timed-out.
Nov 26 21:50:01 luke kernel: sym0:6:0: ABORT operation started.
Nov 26 21:50:06 luke kernel: sym0:6:0: ABORT operation timed-out.
Nov 26 21:50:06 luke kernel: sym0:7:0: ABORT operation started.
Nov 26 21:50:11 luke kernel: sym0:7:0: ABORT operation timed-out.
Nov 26 21:50:11 luke kernel: sym0:1:0: DEVICE RESET operation started.
Nov 26 21:50:16 luke kernel: sym0:1:0: DEVICE RESET operation timed-out.
Nov 26 21:50:16 luke kernel: sym0:2:0: DEVICE RESET operation started.
Nov 26 21:50:21 luke kernel: sym0:2:0: DEVICE RESET operation timed-out.
Nov 26 21:50:21 luke kernel: sym0:3:0: DEVICE RESET operation started.
Nov 26 21:50:26 luke kernel: sym0:3:0: DEVICE RESET operation timed-out.
Nov 26 21:50:26 luke kernel: sym0:6:0: DEVICE RESET operation started.
Nov 26 21:50:31 luke kernel: sym0:6:0: DEVICE RESET operation timed-out.
Nov 26 21:50:31 luke kernel: sym0:7:0: DEVICE RESET operation started.
Nov 26 21:50:36 luke kernel: sym0:7:0: DEVICE RESET operation timed-out.
Nov 26 21:50:36 luke kernel: sym0:1:0: BUS RESET operation started.
Nov 26 21:50:36 luke kernel: sym0: SCSI BUS reset detected.
Nov 26 21:50:36 luke kernel: sym0: SCSI BUS has been reset.
Nov 26 21:50:36 luke kernel: sym0:1:0: BUS RESET operation complete.
Nov 26 21:51:22 luke su(pam_unix)[2692]: session opened for user root by
(uid=500)
Nov 26 21:51:24 luke kernel: sym0:6:0: ABORT operation started.
Nov 26 21:51:29 luke kernel: sym0:6:0: ABORT operation timed-out.
Nov 26 21:51:29 luke kernel: scsi: device set offline - not ready or command
retry failed after bu
s reset: host 0 channel 0 id 6 lun 0
Nov 26 21:51:39 luke kernel: sym0:7:0: ABORT operation started.
Nov 26 21:51:44 luke kernel: sym0:7:0: ABORT operation timed-out.
Nov 26 21:51:44 luke kernel: scsi: device set offline - not ready or command
retry failed after bu
s reset: host 0 channel 0 id 7 lun 0
Nov 26 21:51:44 luke kernel: I/O error: dev 0b:03, sector 192
Nov 26 21:51:44 luke kernel: I/O error: dev 0b:02, sector 30088
Nov 26 21:51:44 luke kernel: I/O error: dev 0b:01, sector 51592
Nov 26 21:51:44 luke kernel: I/O error: dev 0b:01, sector 51592
Nov 26 21:51:44 luke kernel: I/O error: dev 0b:02, sector 30088
Nov 26 21:51:44 luke kernel: I/O error: dev 0b:03, sector 192
Nov 26 21:51:44 luke kernel: cdrom: open failed.
[root@luke root]# cat /proc/version
Linux version 2.4.16 (root@luke.kollegiet) (gcc version 2.96 20000731
(Mandrake Linux 8.1 2.96-0.62mdk)) #2 Mon Nov 26 21:17:40 CET 2001
lspci -vvv
00:09.0 SCSI storage controller: Symbios Logic Inc. (formerly NCR) 53c875
(rev 2
6)
Subsystem: Symbios Logic Inc. (formerly NCR): Unknown device 1000
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+
Step
ping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort
- <MAbort- >SERR- <PERR-
Latency: 32 (4250ns min, 16000ns max), cache line size 08
Interrupt: pin A routed to IRQ 3
Region 0: I/O ports at a400 [size=256]
Region 1: Memory at e0000000 (32-bit, non-prefetchable) [size=256]
Region 2: Memory at df800000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [40] Power Management version 1
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot
-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
--
./Jesper Krogh, jesper@linuxpusher.dk
webshop: http://www.linuxpusher.dk
--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive: http://mail.nl.linux.org/kernelnewbies/
IRC Channel: irc.openprojects.net / #kernelnewbies
Web Page: http://www.kernelnewbies.org/
