Re: New scsi messages in dmesg with 2.6.17-rc4-mm1 including a slightly worrying "Unexpected busfree while idle"

[Jesper Juhl]

On 15/05/06, Jesper Juhl <jesper.juhl@xxxxxxxxx> wrote:
> Hi,
>
> I've been running 2.6.17-rc4-mm1 for a little while, just to test it out a bit.
>
> Haven't been doing anything special, just what I'd be calling normal
> desktop use (well, maybe starting a few more apps than usual at the
> same time, but nothing special).
>
> After about an hour or so I thought "hmm, better check dmesg to see it
> this new kernel has said anything interresting" and indeed it had.
> I found these messages in the dmesg output in addition to what I'd
> normaly expect :
>
> (scsi0:A:5:0): No or incomplete CDB sent to device.
> scsi0: Issued Channel A Bus Reset. 1 SCBs aborted
> (scsi0:A:5:0): Unexpected busfree while idle
> SEQADDR == 0x16c
> (scsi0:A:4:0): No or incomplete CDB sent to device.
> scsi0: Issued Channel A Bus Reset. 1 SCBs aborted

I just got a fresh batch of these with 2.6.17-rc5-git3 :

(scsi0:A:5:0): No or incomplete CDB sent to device.
scsi0: Issued Channel A Bus Reset. 1 SCBs aborted
(scsi0:A:5:0): Unexpected busfree while idle
SEQADDR == 0x16c
(scsi0:A:4:0): No or incomplete CDB sent to device.
scsi0: Issued Channel A Bus Reset. 1 SCBs aborted
(scsi0:A:5:0): No or incomplete CDB sent to device.
scsi0: Issued Channel A Bus Reset. 1 SCBs aborted
(scsi0:A:5:0): Unexpected busfree while idle
SEQADDR == 0x16c
(scsi0:A:4:0): No or incomplete CDB sent to device.
scsi0: Issued Channel A Bus Reset. 1 SCBs aborted
(scsi0:A:5:0): Unexpected busfree while idle
SEQADDR == 0x16c


> I don't recall ever having seen these before with previous kernels, so
> I'm wondering what exactely could be causing them...?
It seems they appear when I launch k3b - the KDE CD burning app.
K3b seems to function OK though.

Should I worry?


> I've been trying for the past 20 minutes to run through the same apps
> as I had running the previous hour, but I've not been able to provoke
> more messages :(  So I'm pretty clueless as to the cause. Hopefully
> someone can clarify.
>
> A few random details about my system below - not quite sure what would
> be relevant, so please just ask for specific details if you need them.
>
> $ cat /etc/slackware-version
> Slackware 10.2.0
>
> $ uname -a
> Linux dragon 2.6.17-rc4-mm1 #1 SMP PREEMPT Mon May 15 20:13:09 CEST
> 2006 i686 athlon-4 i386 GNU/Linux
>
> $ scripts/ver_linux
> If some fields are empty or look unusual you may have an old version.
> Compare to the current minimal requirements in Documentation/Changes.
>
> Linux dragon 2.6.17-rc4-mm1 #1 SMP PREEMPT Mon May 15 20:13:09 CEST
> 2006 i686 athlon-4 i386 GNU/Linux
>
> Gnu C                  3.4.6
> Gnu make               3.81
> binutils               2.15.92.0.2
> util-linux             2.12r
> mount                  2.12r
> module-init-tools      3.2.2
> e2fsprogs              1.38
> reiserfsprogs          3.6.19
> quota-tools            3.12.
> PPP                    2.4.4b1
> nfs-utils              1.0.7
> Linux C Library        2.3.6
> Dynamic linker (ldd)   2.3.6
> Linux C++ Library      6.0.3
> Procps                 3.2.6
> Net-tools              1.60
> Kbd                    1.12
> Sh-utils               5.94
> udev                   071
> Modules Loaded         snd_seq_midi snd_emu10k1_synth snd_emux_synth
> snd_seq_virmidi snd_seq_midi_emul snd_seq_oss snd_seq_midi_event
> snd_seq snd_pcm_oss snd_mixer_oss uhci_hcd usbcore snd_emu10k1
> snd_rawmidi snd_ac97_codec snd_ac97_bus snd_pcm snd_seq_device
> snd_timer snd_page_alloc snd_util_mem snd_hwdep snd agpgart
>
> # cat /proc/scsi/scsi
> Attached devices:
> Host: scsi0 Channel: 00 Id: 04 Lun: 00
>   Vendor: PIONEER  Model: DVD-ROM DVD-305  Rev: 1.03
>   Type:   CD-ROM                           ANSI SCSI revision: 02
> Host: scsi0 Channel: 00 Id: 05 Lun: 00
>   Vendor: PLEXTOR  Model: CD-R   PX-W1210S Rev: 1.01
>   Type:   CD-ROM                           ANSI SCSI revision: 02
> Host: scsi0 Channel: 00 Id: 06 Lun: 00
>   Vendor: IBM      Model: DDYS-T36950N     Rev: S96H
>   Type:   Direct-Access                    ANSI SCSI revision: 03
>
> # lspci -v
> 00:00.0 Host bridge: ALi Corporation M1695 K8 Northbridge [PCI Express
> and HyperTransport]
>         Flags: bus master, fast devsel, latency 0
>         Capabilities: [40] #08 [0060]
>         Capabilities: [5c] #08 [a800]
>         Capabilities: [68] #08 [9000]
>         Capabilities: [74] #08 [8000]
>         Capabilities: [7c] Message Signalled Interrupts: 64bit+
> Queue=0/1 Enable-
>
> 00:01.0 PCI bridge: ALi Corporation: Unknown device 524b (prog-if 00
> [Normal decode])
>         Flags: bus master, fast devsel, latency 0
>         Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
>         Memory behind bridge: ff200000-ff2fffff
>         Capabilities: [40] Power Management version 2
>         Capabilities: [48] Message Signalled Interrupts: 64bit+
> Queue=0/1 Enable-
>         Capabilities: [58] #10 [0141]
>         Capabilities: [7c] #08 [a800]
>         Capabilities: [88] #08 [8825]
>
> 00:02.0 PCI bridge: ALi Corporation: Unknown device 524c (prog-if 00
> [Normal decode])
>         Flags: bus master, fast devsel, latency 0
>         Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
>         Memory behind bridge: ff300000-ff3fffff
>         Capabilities: [40] Power Management version 2
>         Capabilities: [48] Message Signalled Interrupts: 64bit+
> Queue=0/1 Enable-
>         Capabilities: [58] #10 [0141]
>         Capabilities: [7c] #08 [a800]
>         Capabilities: [88] #08 [8825]
>
> 00:04.0 Host bridge: ALi Corporation M1689 K8 Northbridge [Super K8 Single Chip]
>         Flags: bus master, fast devsel, latency 0
>         Memory at dc000000 (32-bit, prefetchable) [size=64M]
>         Capabilities: [40] #08 [0024]
>         Capabilities: [60] #08 [801c]
>         Capabilities: [80] AGP version 3.0
>
> 00:05.0 PCI bridge: ALi Corporation AGP8X Controller (prog-if 00
> [Normal decode])
>         Flags: bus master, 66Mhz, fast devsel, latency 0
>         Bus: primary=00, secondary=03, subordinate=03, sec-latency=64
>         Memory behind bridge: ff400000-ff4fffff
>         Prefetchable memory behind bridge: c7f00000-d7efffff
>
> 00:06.0 PCI bridge: ALi Corporation M5249 HTT to PCI Bridge (prog-if
> 01 [Subtractive decode])
>         Flags: bus master, fast devsel, latency 0
>         Bus: primary=00, secondary=04, subordinate=04, sec-latency=32
>         I/O behind bridge: 0000d000-0000dfff
>         Memory behind bridge: ff500000-ff5fffff
>         Prefetchable memory behind bridge: 88000000-880fffff
>
> 00:07.0 ISA bridge: ALi Corporation M1563 HyperTransport South Bridge (rev 70)
>         Subsystem: ASRock Incorporation: Unknown device 1563
>         Flags: bus master, medium devsel, latency 0
>
> 00:07.1 Bridge: ALi Corporation M7101 Power Management Controller [PMU]
>         Subsystem: ASRock Incorporation: Unknown device 7101
>         Flags: medium devsel
>
> 00:11.0 Ethernet controller: ALi Corporation M5263 Ethernet Controller (rev 40)
>         Subsystem: ASRock Incorporation: Unknown device 5263
>         Flags: bus master, medium devsel, latency 32, IRQ 10
>         I/O ports at e800 [size=256]
>         Memory at ff6ffc00 (32-bit, non-prefetchable) [size=256]
>         Capabilities: [50] Power Management version 2
>
> 00:12.0 IDE interface: ALi Corporation M5229 IDE (rev c7) (prog-if 8a
> [Master SecP PriP])
>         Subsystem: ASRock Incorporation: Unknown device 5229
>         Flags: bus master, 66Mhz, medium devsel, latency 32
>         I/O ports at <ignored>
>         I/O ports at <ignored>
>         I/O ports at <ignored>
>         I/O ports at <ignored>
>         I/O ports at ff00 [size=16]
>
> 00:13.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
> (prog-if 10 [OHCI])
>         Subsystem: ASRock Incorporation: Unknown device 5237
>         Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 11
>         Memory at ff6fe000 (32-bit, non-prefetchable) [size=4K]
>
> 00:13.1 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
> (prog-if 10 [OHCI])
>         Subsystem: ASRock Incorporation: Unknown device 5237
>         Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 3
>         Memory at ff6fd000 (32-bit, non-prefetchable) [size=4K]
>
> 00:13.2 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
> (prog-if 10 [OHCI])
>         Subsystem: ASRock Incorporation: Unknown device 5237
>         Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 11
>         Memory at ff6fc000 (32-bit, non-prefetchable) [size=4K]
>
> 00:13.3 USB Controller: ALi Corporation USB 2.0 Controller (rev 01)
> (prog-if 20 [EHCI])
>         Subsystem: ASRock Incorporation: Unknown device 5239
>         Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 5
>         Memory at ff6ff800 (32-bit, non-prefetchable) [size=256]
>         Capabilities: [50] Power Management version 2
>         Capabilities: [58] #0a [2090]
>
> 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8
> [Athlon64/Opteron] HyperTransport Technology Configuration
>         Flags: fast devsel
>         Capabilities: [80] #08 [2101]
>
> 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8
> [Athlon64/Opteron] Address Map
>         Flags: fast devsel
>
> 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8
> [Athlon64/Opteron] DRAM Controller
>         Flags: fast devsel
>
> 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8
> [Athlon64/Opteron] Miscellaneous Control
>         Flags: fast devsel
>
> 03:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA Parhelia
> AGP (rev 03) (prog-if 00 [VGA])
>         Subsystem: Matrox Graphics, Inc. Parhelia 128Mb
>         Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 5
>         Memory at c8000000 (32-bit, prefetchable) [size=128M]
>         Memory at ff4fe000 (32-bit, non-prefetchable) [size=8K]
>         Expansion ROM at ff4c0000 [disabled] [size=128K]
>         Capabilities: [dc] Power Management version 2
>         Capabilities: [f0] AGP version 2.0
>
> 04:05.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 0a)
>         Subsystem: Creative Labs SBLive! 5.1 eMicro 28028
>         Flags: bus master, medium devsel, latency 32, IRQ 20
>         I/O ports at d880 [size=32]
>         Capabilities: [dc] Power Management version 1
>
> 04:05.1 Input device controller: Creative Labs SB Live! MIDI/Game Port (rev 0a)
>         Subsystem: Creative Labs Gameport Joystick
>         Flags: bus master, medium devsel, latency 32
>         I/O ports at dc00 [size=8]
>         Capabilities: [dc] Power Management version 1
>
> 04:06.0 SCSI storage controller: Adaptec AIC-7892A U160/m (rev 02)
>         Subsystem: Adaptec 29160N Ultra160 SCSI Controller
>         Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 19
>         BIST result: 00
>         I/O ports at d400 [disabled] [size=256]
>         Memory at ff5ff000 (64-bit, non-prefetchable) [size=4K]
>         Expansion ROM at 88000000 [disabled] [size=128K]
>         Capabilities: [dc] Power Management version 2
>
> 04:07.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 42)
>         Subsystem: D-Link System Inc DFE-530TX rev B
>         Flags: bus master, medium devsel, latency 32, IRQ 18
>         I/O ports at d000 [size=256]
>         Memory at ff5fec00 (32-bit, non-prefetchable) [size=256]
>         Expansion ROM at 88020000 [disabled] [size=64K]
>         Capabilities: [40] Power Management version 2


--
Jesper Juhl <jesper.juhl@xxxxxxxxx>
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