Hi, This is my first message on this list. The problem I'm facing are several messages of the form Jan 28 06:49:17 [kernel] (scsi0:A:0:0): Unexpected busfree in Data-out phase Jan 28 06:49:17 [kernel] SEQADDR == 0x86 generated by the aic7xxx driver running my Adaptec 29160. I get a lot of diferrent SEQADDR preceded by the same "Unexpected busfree in Data-out phase". From this morning I have also SEQADDR == 0x54. I started to notice these messages on two database servers since I upgraded their kernels to 2.6.23 (it happens with 2.6.22 also) about a month ago. Before I configured "Maximum number of TCQ commands per device" in the kernel to zero I got tons of other SCSI messages after the starting "Unexpected busfree in Data-out phase" message. I end up relating these bursts of SCSI error messages with kernel panics on the aic driver. Unfortunatelly I don't have more details on the kernel panic but I can try to provide it if necessary. Now that I have "Maximum number of TCQ commands per device" set to zero, I'm apparently only getting the "Unexpected busfree in Data-out phase" error message but no kernel panics. I already turned on the following options in the kernel but got no more info from it: Verbose SCSI error reporting (kernel size +=12K) and SCSI logging facility The "SCSI logging facility" needs some kind of echo "scsi log token [level]" > /proc/scsi/scsi but I couldn't identify which level I should try. Any advice on how to further diagnose this issue? Some basic info on my system: The discs connected to this Adaptec 29160 are quite old 36Gb 10K units from Compaq. I had a problem which looking back seems as exactly the same on other machine with a 39160 Adaptec board and older Seagate Cheetah 18Gb 10K disks but these discs aren't connected right now as they have been replaced by newer ones. # lspci 00:00.0 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge 00:00.1 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge 00:00.2 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge 00:00.3 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge 00:00.4 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge 00:00.7 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge 00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI bridge [K8T800/K8T890 South] 00:0a.0 Ethernet controller: Marvell Technology Group Ltd. 88E8001 Gigabit Ethernet Controller (rev 13) 00:0c.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 78) 00:0e.0 SCSI storage controller: Adaptec AIC-7892A U160/m (rev 02) 00:0f.0 RAID bus controller: VIA Technologies, Inc. VIA VT6420 SATA RAID Controller (rev 80) 00:0f.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06) 00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge [KT600/K8T800/K8T890 South] 00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60) 00:11.6 Communication controller: VIA Technologies, Inc. AC'97 Modem Controller (rev 80) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 01:00.0 VGA compatible controller: nVidia Corporation NV5M64 [RIVA TNT2 Model 64/Model 64 Pro] (rev 15) # cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: COMPAQ Model: BD03663622 Rev: BDC4 Type: Direct-Access ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 01 Lun: 00 Vendor: COMPAQ Model: BD03663622 Rev: BDC4 Type: Direct-Access ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 02 Lun: 00 Vendor: COMPAQ Model: BD03663622 Rev: BDC4 Type: Direct-Access ANSI SCSI revision: 02 Regards, Rodrigo Severo -- --------------------------------------------------------------------------------------- Rodrigo Severo Fábrica de Idéias SBS Quadra 2 - Bloco S - Ed. Empire Center - Sala 1.301 Brasília - DF - CEP 70070-904 Tel. (61) 3321-1357 Fax (61) 3223-1712 --------------------------------------------------------------------------------------- - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
