Hello, list,
I have a reproducible _software_ bug about sata. (libata?)
In my system i have 4 nodes, each has 12 hdd.
All hw are equal, and 110% tested, and really error free!
But 2 of my nodes, frequently reboots without and any error message on
remote syslog, and netconsole.
No oops, no nothing!
(loglevel 9)
Only in serial console can show some time a little clue:
"ata2: translated ATA stat/err 0x51/40 to SCSI SK/ASC/ASCQ 0x3/11/04
ata2: status=0x51 { DriveReady SeekComplete Error"
After this little partial message, the system immediately reboots!
Thats the all.
The smart log is clear in _all_ my 48 hdd.
Anyway the disk and cable in ata2 port is replaced, but this not helps.
The kernel 2.6.16.1, 2.6.17-rc3-git1. (now i trying the latest rc and git.)
(I cannot try the 2.6.16 > kernels, because my sata card are unsupported on
older versions.)
The dmesg log is here from my node #1:
http://download.netcenter.hu/bughunt/20060605/dmesg.txt
I have compile the kernel with these debug options:
[*] Magic SysRq key
[*] Kernel debugging
[*] Collect scheduler statistics
[*] Mutex debugging, deadlock detection
[*] Force gcc to inline functions marked 'inline'
[*] Check for stack overflows
(2) Stack backtraces per line
[*] Debug page memory allocations
[*] Write protect kernel read-only data structures
Can somebody find and fix it?
I can do almost anything to helping to debug!
Thanks,
Janos
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