Hugo, The sense and erp data is truncated ... here is a similar example that may shed light on how to look into the problem. The sense codes are discussed in the "IBM 3990 Storage Control Reference" at http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/A13R1001/CCONTENTS :
Example 2: EXAMINE 24: Command Reject detected - fatal error
This usually indicates a write to a read-only device. It can be seen when a
read-only file system is not properly configured (CP
directory, /etc/zipl.conf,/etc/fstab).
Example 2: Data: /var/log/messages
kernel: dasd_erp(3990): 0.0.0401: EXAMINE 24: Command Reject detected -
fatal error
kernel: dasd(eckd): I/O status report for device 0.0.0401:
kernel: dasd(eckd): in req: 0000000006925ee8 CS: 0x00 DS: 0x02
kernel: dasd(eckd): device 0.0.0401: Failing CCW: 0000000006925fc8
kernel: dasd(eckd): Sense(hex) 0- 7: 80 02 00 00 00 00 00 00
kernel: dasd(eckd): Sense(hex) 8-15: 00 00 00 00 00 00 00 00
kernel: dasd(eckd): Sense(hex) 16-23: 00 00 00 00 05 08 0f 00
kernel: dasd(eckd): Sense(hex) 24-31: 00 00 40 e0 00 00 00 00
kernel: dasd(eckd): 24 Byte: 0 MSG 0, no MSGb to SYSOP
kernel:
kernel: dasd_erp: 0.0.0401: (EXAMINE) ERP chain report for req:
0000000006925ee8
...
kernel: dasd_erp: 0.0.0401: Channel program (complete):
kernel: dasd_erp: 0.0.0401: 0000000006925fb8: 63400010 06925fd0 47400010
06925ff0
kernel: dasd_erp: 0.0.0401: 0000000006925fc8: 85001000 071cf000 80c00000
00000000
kernel: end_request: I/O error, dev dasdc, sector 2196728
Since byte 27, bit 0 is '1'; the sense data is 24-byte compatibility mode
format.
Example 2: Examining the subchannel status word CS and the device status
word DS.
The line
kernel: dasd(eckd): in req: 0000000006925ee8 CS: 0x00 DS: 0x02
Contains the subchannel status word = 0x00 and the device status word =
0x02. The DS 0x02 indicates a unit check condition.
Example 2: Examining the DASD Sense Information.
As byte 27 = 0xe0 = 1110 0000, bit 0 is '1', so the sense data is 24-byte
compatibility mode format.
Looking at
kernel: dasd(eckd): Sense(hex) 0- 7: 80 02
The 3990 generates sense bytes 0 through 2 when it encounters a unit check.
The DASD interrupt handler checks these bytes for three fatal
(unrecoverable) errors, leaving a detailed examination of the sense data of
recoverable errors for the bottom half. The unrecoverable errors are
'Command Reject', 'Invalid Track Format' and 'No Record Found'.
'Command Reject' is indicated by Byte 0 Bit 0 set
'Invalid Track Format' is indicated by Byte 1 Bit 1 set
'No Record Found' is indicated by Byte 1 Bit 4 set
Sense Byte 0 = 0x80 = 1000 0000 we have that 'Command Reject' is indicated
by Byte 0 Bit 0 set.
This is an unrecoverable error.
Example 2: Examining the channel program
Next, we look at the Channel program information in the lines.
kernel: dasd_erp: 0.0.0401: 0000000006925fb8: 63400010 06925fd0
47400010 06925ff0
kernel: dasd_erp: 0.0.0401: 0000000006925fc8: 85001000 071cf000
80c00000 00000000
Here, the 1st CCW 63400010 06925fd0 has command code 0x63, the 2nd CCW
47400010 06925ff0 has command code 0x47 and the 3rd CCW 85001000 071cf000
has command code 0x85. Using the table from drivers/s390/block/dasd_eckd.c
#define DASD_ECKD_CCW_LOCATE_RECORD 0x47
#define DASD_ECKD_CCW_DEFINE_EXTENT 0x63
#define DASD_ECKD_CCW_WRITE_MT 0x85
We have a "Define extent" command, 0x63, a "Locate record" command, 0x47,
and a "Write Multitrack Data" command, 0x85.
The line:
kernel: dasd(eckd): device 0.0.0401: Failing CCW: 0000000006925fc8
indicates that the 0x85 write command at address 0000000006925fc8 failed.
The Command Reject error during a write indicates an attempt to write to a
read-only device.
Mike O'Reilly
IBM Linux Change Team
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_________________________
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___
Hugo Luis Vitelli
<vitel...@ar.ibm.
com> To
Sent by: Linux on LINUX-390@VM.MARIST.EDU
390 Port cc
<linux-...@vm.mar
IST.EDU> Subject
error zipl linux clone
03/02/2009 05:04
PM
Please respond to
Linux on 390 Port
<linux-...@vm.mar
IST.EDU>
Hello people ...
Here I bring another concern, which I imagine you have crossed it.
After performing the cloning of linux and minidisks (rw and ro) and the
links to the gold disc from the machine ... gives the following error
Mounting root /dev/dasdb1
dasd_erp(3990): 0.0.01b1: EXAMINE 24: Command Reject detected - fatal
error
dasd(eckd): I/O status report for device 0.0.01b1:
dasd(eckd): in req: 000000000f6e9ee8 CS: 0x00 DS: 0x02
dasd(eckd): device 0.0.01b1: Failing CCW: 000000000f6e9fc8
dasd(eckd): Sense(hex) 0- 7: 80 02 00 00 00 00 00 00
If anyone has information on what the solution is I will Gradec
Very Grateful
Hugo Luis Vitelli
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Mail.: vitel...@ar.ibm.com
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