Messages in this thread | | | From | "Janos Haar" <> | Subject | critical bug in sata driver ? | Date | Mon, 5 Jun 2006 12:27:15 +0200 |
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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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