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Subjectide-scsi scheduling while atomic in linux-2.6.0-test11
[1.] One line summary of the problem:

ide-scsi scheduling while atomic in linux-2.6.0-test11

[2.] Full description of the problem/report:

ide-scsi gives me "scheduling while atomic" while burning a CDRW in
linux-2.6.0-test11, when an interrupt is lost. I have no clue what
caused this; I was writing a CDRW that might have been faulty, but
otherwise nothing unusual. The CDRW is a Samsung SW-408B on the
secondary slave. While burning, I was extracting audio data from a CD in
the DVD player that was on the secondary master.

[3.] Keywords (i.e., modules, networking, kernel):

ide-scsi, cd-writing

[4.] Kernel version (from /proc/version):

Linux version 2.6.0-test11 (root@samwel.tk) (gcc version 3.3.2 (Debian))
#6 Sun Nov 30 22:25:31 CET 2003

[5.] Output of Oops.. message (if applicable) with symbolic information
resolved (see Documentation/oops-tracing.txt)

Dec 9 22:31:17 samwel kernel: hdd: lost interrupt
Dec 9 22:31:17 samwel kernel: ide-scsi: The scsi wants to send us more
data than expected - d
iscarding data
Dec 9 22:31:17 samwel kernel: ide-scsi: abort called for 4947
Dec 9 22:31:17 samwel kernel: bad: scheduling while atomic!
Dec 9 22:31:17 samwel kernel: Call Trace:
Dec 9 22:31:17 samwel kernel: [schedule+1413/1424] schedule+0x585/0x590
Dec 9 22:31:17 samwel kernel: [poke_blanked_console+107/128]
poke_blanked_console+0x6b/0x80
Dec 9 22:31:17 samwel kernel: [vt_console_print+541/768]
vt_console_print+0x21d/0x300
Dec 9 22:31:17 samwel kernel: [__down+149/272] __down+0x95/0x110
Dec 9 22:31:17 samwel kernel: [default_wake_function+0/32]
default_wake_function+0x0/0x20
Dec 9 22:31:17 samwel kernel: [__wake_up_common+58/112]
__wake_up_common+0x3a/0x70
Dec 9 22:31:17 samwel kernel: [__down_failed+8/12] __down_failed+0x8/0xc
Dec 9 22:31:17 samwel kernel: [.text.lock.scsi_error+55/73]
.text.lock.scsi_error+0x37/0x49
Dec 9 22:31:17 samwel kernel: [scsi_sleep_done+0/32]
scsi_sleep_done+0x0/0x20
Dec 9 22:31:17 samwel kernel:
[__crc_xfrm_state_unregister_afinfo+509762/1539753] idescsi_ab
ort+0xd8/0xf0 [ide_scsi]
Dec 9 22:31:17 samwel kernel: [scsi_try_to_abort_cmd+95/128]
scsi_try_to_abort_cmd+0x5f/0x80
Dec 9 22:31:17 samwel kernel: [scsi_eh_abort_cmds+87/240]
scsi_eh_abort_cmds+0x57/0xf0
Dec 9 22:31:17 samwel kernel: [__wake_up_locked+33/48]
__wake_up_locked+0x21/0x30
Dec 9 22:31:17 samwel kernel: [scsi_unjam_host+176/512]
scsi_unjam_host+0xb0/0x200
Dec 9 22:31:17 samwel kernel: [default_wake_function+0/32]
default_wake_function+0x0/0x20
Dec 9 22:31:17 samwel kernel: [scsi_error_handler+264/448]
scsi_error_handler+0x108/0x1c0
Dec 9 22:31:17 samwel kernel: [scsi_error_handler+0/448]
scsi_error_handler+0x0/0x1c0
Dec 9 22:31:17 samwel kernel: [kernel_thread_helper+5/16]
kernel_thread_helper+0x5/0x10

This output (from "bad: ..." down) repeats a couple of times, at
intervals of about a second, and then control is returned to cdrecord.

[7.] Environment
[7.1.] Software (add the output of the ver_linux script here)

If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.

Linux samwel.tk 2.6.0-test11 #6 Sun Nov 30 22:25:31 CET 2003 i686 GNU/Linux

Gnu C 3.3.3
Gnu make 3.80
util-linux 2.12
mount 2.12
module-init-tools 0.9.15-pre4
e2fsprogs 1.35-WIP
Linux C Library 2.3.2
Dynamic linker (ldd) 2.3.2
Procps 3.1.14
Net-tools 1.60
Console-tools 0.2.3
Sh-utils 5.0.91
Modules Loaded nvidia msr microcode dummy

NOTE: this is output from a fixed system in which I removed ide-scsi; in
the configuration in which this oops occurred ide-scsi was loaded, of
course.

[7.2.] Processor information (from /proc/cpuinfo):

processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 8
model name : Pentium III (Coppermine)
stepping : 10
cpu MHz : 1000.350
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 mmx fxsr sse
bogomips : 1970.17

[7.3.] Module information (from /proc/modules):

Unfortunately this does not include ide-scsi, because I rebooted since
the oops.

nvidia 1702604 10 - Live 0xe8b04000
msr 2784 0 - Live 0xe8928000
microcode 6656 0 - Live 0xe8930000
dummy 1956 0 - Live 0xe892a000

[7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)

Same problem here.

# cat /proc/ioports
0000-001f : dma1
0020-0021 : pic1
0040-005f : timer
0060-006f : keyboard
0070-0077 : rtc
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
02f8-02ff : serial
0376-0376 : ide1
0378-037a : parport0
037b-037f : parport0
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial
0cf8-0cff : PCI conf1
4000-40ff : 0000:00:07.4
5000-500f : 0000:00:07.4
c000-c00f : 0000:00:07.1
c000-c007 : ide0
c008-c00f : ide1
c400-c41f : 0000:00:07.2
c400-c41f : uhci_hcd
c800-c81f : 0000:00:07.3
c800-c81f : uhci_hcd
d000-d0ff : 0000:00:0e.0
d000-d0ff : 8139too
d400-d407 : 0000:00:0f.0
d800-d8ff : 0000:00:0f.0
dc00-dcff : 0000:00:10.0
dc00-dcff : 8139too
e000-e01f : 0000:00:11.0
e000-e01f : EMU10K1
e400-e407 : 0000:00:11.1

# cat /proc/iomem

00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000f0000-000fffff : System ROM
00100000-27feffff : System RAM
00100000-0042f54c : Kernel code
0042f54d-005458ff : Kernel data
27ff0000-27ff2fff : ACPI Non-volatile Storage
27ff3000-27ffffff : ACPI Tables
d0000000-d7ffffff : PCI Bus #01
d0000000-d7ffffff : 0000:01:00.0
d8000000-dbffffff : 0000:00:00.0
dc000000-ddffffff : PCI Bus #01
dc000000-dcffffff : 0000:01:00.0
de000000-de0000ff : 0000:00:0e.0
de000000-de0000ff : 8139too
de001000-de0010ff : 0000:00:0f.0
de002000-de0020ff : 0000:00:10.0
de002000-de0020ff : 8139too
ffff0000-ffffffff : reserved

[7.5.] PCI information ('lspci -vvv' as root)

00:00.0 Host bridge: VIA Technologies, Inc. VT82C693A/694x [Apollo
PRO133x] (rev c4)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort+ >SERR- <PERR-
Latency: 0
Region 0: Memory at d8000000 (32-bit, prefetchable) [size=64M]
Capabilities: [a0] AGP version 2.0
Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64-
HTrans- 64bit- FW- AGP3- Rate=x1,x2
Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP+ GART64- 64bit-
FW- Rate=x2
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598/694x [Apollo
MVP3/Pro133x AGP] (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort+ >SERR- <PERR-
Latency: 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: dc000000-ddffffff
Prefetchable memory behind bridge: d0000000-d7ffffff
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South]
(rev 22)
Subsystem: VIA Technologies, Inc. VT82C686/A PCI to ISA Bridge
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping+ SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0

00:07.1 IDE interface: VIA Technologies, Inc.
VT82C586A/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE (rev 10)
(prog-if 8a [Master SecP PriP])
Subsystem: VIA Technologies, Inc.
VT82C586/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32
Region 4: I/O ports at c000 [size=16]
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:07.2 USB Controller: VIA Technologies, Inc. USB (rev 10) (prog-if 00
[UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32, Cache Line Size: 0x08 (32 bytes)
Interrupt: pin D routed to IRQ 11
Region 4: I/O ports at c400 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:07.3 USB Controller: VIA Technologies, Inc. USB (rev 10) (prog-if 00
[UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32, Cache Line Size: 0x08 (32 bytes)
Interrupt: pin D routed to IRQ 11
Region 4: I/O ports at c800 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:07.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 30)
Subsystem: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin ? routed to IRQ 9
Capabilities: [68] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:0e.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
Subsystem: Unex Technology Corp. ND010
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (8000ns min, 16000ns max)
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at d000 [size=256]
Region 1: Memory at de000000 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0-,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable+ DSel=0 DScale=0 PME-

00:0f.0 Communication controller: Lucent Microelectronics F-1156IV
WinModem (V90, 56KFlex) (rev 01)
Subsystem: Askey Computer Corp. LT WinModem 56k
Data+Fax+Voice+VoiceView+Dsvd
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0 (63000ns min, 3500ns max)
Interrupt: pin A routed to IRQ 11
Region 0: Memory at de001000 (32-bit, non-prefetchable) [size=256]
Region 1: I/O ports at d400 [size=8]
Region 2: I/O ports at d800 [size=256]
Capabilities: [f8] Power Management version 2
Flags: PMEClk- DSI+ D1- D2+ AuxCurrent=0mA
PME(D0-,D1-,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:10.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
Subsystem: Edimax Computer Co.: Unknown device 9503
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (8000ns min, 16000ns max)
Interrupt: pin A routed to IRQ 5
Region 0: I/O ports at dc00 [size=256]
Region 1: Memory at de002000 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0-,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable+ DSel=0 DScale=0 PME-

00:11.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 08)
Subsystem: Creative Labs CT4760 SBLive! OEM version
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (500ns min, 5000ns max)
Interrupt: pin A routed to IRQ 11
Region 0: I/O ports at e000 [size=32]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:11.1 Input device controller: Creative Labs SB Live! MIDI/Game Port
(rev 08)
Subsystem: Creative Labs Gameport Joystick
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32
Region 0: I/O ports at e400 [size=8]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

01:00.0 VGA compatible controller: nVidia Corporation NV11 [GeForce2
MX/MX 400] (rev a1) (prog-if 00 [VGA])
Subsystem: PROLINK Microsystems Corp: Unknown device 1081
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 248 (1250ns min, 250ns max)
Interrupt: pin A routed to IRQ 10
Region 0: Memory at dc000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at d0000000 (32-bit, prefetchable) [size=128M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [60] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [44] AGP version 2.0
Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA- ITACoh- GART64-
HTrans- 64bit- FW+ AGP3- Rate=x1,x2
Command: RQ=32 ArqSz=0 Cal=0 SBA- AGP+ GART64- 64bit-
FW- Rate=x2

[7.6.] SCSI information (from /proc/scsi/scsi)

Not very useful when I've already removed ide-scsi from the system. :(
It says no devices are attached. D'oh!

[X.] Other notes, patches, fixes, workarounds:

If you want to know if the ATAPI interface works any better, I'll be
trying this for now so please mail me if you want to know.

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